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NATIONAL ELECTRICAL CODE® CODE-MAKING PANEL 16

NFPA 70 Second Draft Meeting Agenda

October 22 - 27, 2018 San Diego, CA

1. Call to Order – Thomas Moore, Chair

2. Introductions

3. Approval of Previous Meeting Minutes (Attachment A)

4. Staff Updates - NFPA Staff

• Overview of NFPA Process

5. Review of Public Comments (Attachment B)

6. Old Business

7. New Business

8. Adjourn

Code-Making Panel 16 Second Draft Meeting Agenda October 22 - 27, 2018

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Attachment A: Previous Meeting Minutes


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NEC® Code-Making Panel _16__ Chair Report

Signature:

Dates and Location of Meeting:

1. List names of NEC® Code-Making Panel Members in Attendance:

Staff will enter

2. List names of Guests in Attendance:

Staff will enter

3. List names of Guests who addressed the Panel, the subject of their presentation and the

length of time they spoke:

Dr. Marcelo Hirschler with GBH International addressed the committee with a

presentation on Public Inputs 1775 and 1776. Time of presentation 20 Minutes

4. Number of Public Inputs/Comments acted upon:

251 Public Inputs

5. Number of First/Second Revisions Created:

128 First Revisions (Includes 7 Panel FR’s)

6. List any Task Groups appointed to work subsequent to the First/Second Draft Meeting,

along with the names of Task Group members:

Jan. 8-13, 2018

Hilton Head, South Carolina


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7. List any Public Input/Comment or First/Second Revision that may need to be referred to

another Panel for information or correlation:

The following First Revisions possibly need to be referred to CMP 8 as Article 392

“Cable Trays” are under their purview.

FR 7586 Section 770.110(D) Public Input 75

FR 7741 Section 800.110(D) Public input 76



8. List any Public Input/Comment that requires NEC® Correlating Committee attention:

A. Review Actions and Statements on Titles and Scopes.

FR 7530 Article 770 Public Input 903

FR 7644 Article 800 Public Input 892 & 893




TG 1 Global Inputs Chair: Larry Chan

Harry Ohde

Randy Ivans

Fred Dawson

Gerald Lee Dorna

Robert Davies

TG 2 Article 770

Chair: William McCoy

Timothy Cooke

Masood Shariff

Michael Murphy

Luigi G Prezioso

John Kacperski

Robert Davies

TG 3 Article 800 Chair: William McCoy

Harry Ohde

James E Brunssen

Anthony Tassone

David Schrembeck

Removed Bob Jensen

Jean M Blanc

Leo Zieman

TG 4 Articles 810 and 820 Chair: David Lettkeman

Jim Brunssen

John Kacperski

Stanley Kaufman

Leo Zieman

Steve Johnson

Jean M Blanc

TG 5 Article 830 Chair Thomas Parrish

Luigi G Prezioso

Terry Coleman

Rendell Bourg

Fred Dawson

Steve Johnson

Stanley Kaufman

TG 6 Article 840 Chair: Terry Coleman

Eric Lawrence

Trevor Bowmer

Rodger Reiswig

Larry Chan

Timothy Cooke

Randy Ivans

TG 7 Usability Oversight Chair: George Bish

Larry Chan

William McCoy

Harry Ohde

David Lettkeman

Thomas Parrish

Terry Coleman


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B. New Article 890 PI 2858 FR 7512 (Correct placement/Article number

within Chapter 8)

C. FR 8117- CMP 16 rejected the term “nominal current” as contained in TIA 1301

where the term “rated current” was determined to be the more proper and enforceable

term and as furthermore used in the new exception to 840.160. FR’s 8790, 8835, and

8932 by CMP 3 will cause a conflict with this term.

9. List any general requests for information or assistance from the NEC® Correlating

Committee: None

10. List any issues that should be brought to the attention of the NFPA Research Foundation:

The following First Revision deals with present Research Foundation work on PoE.

FR 7892 Section 840.160 Powering Circuits

11. List any additional information that would be helpful to the NEC® Correlating

Committee, NFPA Staff, or process in general: None


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Code-Making Panel 16 Attendance

NEC® First Draft Meeting A2019

Principal Members in Attendance

T. Moore, Chair J. Brunssen R. Davies F. Dawson S. Johnson W. McCoy M. Murphy T. Parrish L. Prezioso R. Reiswig M. Shariff A. Tassone L. Zieman D. Lettkeman, Voting Alternate

Alternate Members in Attendance

J. Blanc R. Bourg T. Bowmer L. Chan T. Coleman T. Cooke R. Ivans J. Kacperski S. Kaufman D. Schrembeck

Staff Liaison

B. Chase, NFPA M. Earley, NFPA

Guests in Attendance

B. House, Mike Holt Enterprises M. Fontaine, NESG Inc. G. Bish, SBCA G. Zimmerman, CME Consulting Ethernet Alliance

T. Papallo, Siemens M. Hirschler, GBH International

K. Seeliger, Att D. Clements, IAEI D. Hittinger, IEC K. Quackenbush, NFPA C. Dubay, NFPA J. Duffey, Terra XML K. Arnold, Terra XML J. Sargent, NFPA M. Johnston, NECA K. Lofland, IAEI D. Bellis, NFPA E. Gallo, ATIS B. Holland, NEMA R. Bourg, AFAH T. Ward, Leviton D. Hittinger, IEC M. Holt, Mike Holt Enterprises D. Jones, NFPA P. Griffith Rose, IAEI


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Attachment B: Public Comment Report


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Public Comment No. 979-NFPA 70-2018 [ Global Input ]

This Global Public Comment requests that each CMP review all products under their purview anddetermine whether reconditioning should be permitted. This public comment is submitted by a taskgroup assigned by the NEC Correlating Committee. This task group was charged with reviewing PublicInput 2935 which was resolved by CMP-1 during the first draft stage. This PI would have required that“Reconditioned Equipment” be “listed as “reconditioned” and the “original listing marks removed”. This PIhas ramifications that are global in nature and impacts all products referenced in the NEC under thepurview of every CMP.

Additional Proposed Changes

File Name Description Approved

NEMA-Position_Refubishing_on_ElecEquip.pdf

Statement of Problem and Substantiation for Public Comment

This Public Comment is submitted on behalf of a task group appointed by the NEC® Correlating Committee. This Task Group was appointed to review the use of refurbished equipment throughout the NEC®. Task Group members are Jim Dollard, Robert Osborne, Jim Pierce, and David Williams. This task group has been charged with reviewing Public Input (PI) 2935 which was resolved by CMP-1 during the first draft stage. This PI would have required that “Reconditioned Equipment” be “listed as “reconditioned” and the “original listing marks removed”. This PI has ramifications that are global in nature and impacts all products referenced in the NEC under the purview of every CMP.

Task group members noted that some types of equipment are capable of being reconditioned, then re-evaluated to ensure compliance with the applicable product standards. Other types of equipment do not lend themselves to reconditioning due to the complexity of the product, the manufacturing process, or the level of knowledge the company performing the reconditioning may need, etc.

The “NEMA Policy on Reconditioned Electrical Equipment” details the following aspects of Reconditioning of Electrical Equipment:

ꞏ Fundamental Tenets for Reconditioning Electrical Equipment

ꞏ Electrical Infrastructure and Worker Safety

ꞏ Integrity of Reconditioned Equipment

ꞏ Listing or Certification Marks

ꞏ UL Guidance on the UL Mark

ꞏ Components or Assemblies Not Suitable For Reconditioning (Appendix A)

ꞏ Components or Assemblies Which May Be Reconditioned (Appendix B)

A PDF copy of this NEMA policy is attached and may also be found on the internet at the following URL:

https://www.nema.org/Policy/Documents/NEMA-Position_Refubishing%20on%20ElecEquip.pdf

NEC® section 110.21(A)(2), which was new for the 2017 Edition of the NEC®, included marking requirements for “Reconditioned Equipment”. PI 2935 would have required that “Reconditioned Equipment” be “listed as “reconditioned” and the “original listing marks removed”. CMP 1 resolved this PI. Due to the global nature of PI 2935 this Task Group, appointed by the NEC® Correlating Committee, has developed a number of Public Comments, based on the products identified in the referenced NEMA document, to determine whether or not equipment can be reconditioned, and if reconditioned, what additional requirements apply.

While several Public Comments were developed for specific equipment by this task group, not all equipment was addressed (neither was all the equipment noted in the NEMA Policy document addressed). This Global Public

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Comment requests each CMP to review the products required to be listed under their purview and determine whether reconditioning should be permitted. It is recommended that the NEMA Policy document be used as one of the guidelines in making this determination. It is also recommended that one of the following options/examples be chosen for listed equipment:

Option 1 - Equipment NOT suitable for Reconditioning (EXAMPLE):

695.10 Listed Equipment. Diesel engine fire pump controllers, electric fire pump controllers, electric motors, fire pump power transfer switches, foam pump controllers, and limited service controllers shall be listed for fire pump service. [20:9.5.1.1, 10.1.2.1, 12.1.3.1]

Fire pump controllers and transfer switches shall not be permitted to be reconditioned.

Option 2 - Equipment which MAY BE suitable for Reconditioning (EXAMPLE):

408.8 Reconditioned Equipment.

(A) Panelboards. The use of reconditioned panelboards shall comply with (1) and (2):

(1) Industrial and commercial panelboards shall be permitted to be reconditioned. Reconditioned equipment shall be listed as “reconditioned” and the original listing mark removed.

(2) Panelboards installed in dwelling units shall not be permitted to be reconditioned.

(B) Switchboards and Switchgear. Low voltage switchgear, medium voltage switchgear and switchboards shall be permitted to be reconditioned. Reconditioned equipment shall be listed as “reconditioned” and the original listing mark removed.

Note that equipment where no specific guidance is provided would be permitted to be reconditioned and would only be required to meet the marking requirements in 110.21(A)(2).

Related Public Comments for This Document

Related Comment Relationship

Public Comment No. 980-NFPA 70-2018 [New Section after 240.87(B)]

Public Comment No. 981-NFPA 70-2018 [New Section after 240.61]

Public Comment No. 982-NFPA 70-2018 [New Section after 240.101(B)]

Public Comment No. 983-NFPA 70-2018 [Section No. 695.10]

Public Comment No. 984-NFPA 70-2018 [Section No. 700.5(C)]




Related Item

• PI 2935

Submitter Information Verification

Submitter Full Name: James Dollard

Organization: IBEW Local Union 98

Street Address:

City:

State:


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Zip:

Submittal Date: Tue Aug 21 08:08:39 EDT 2018

Committee: NEC-AAC

Copyright Assignment

I, James Dollard, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am James Dollard, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, uponmy submission of this form, have the same legal force and effect as a handwritten signature


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NEMA Policy on Reconditioned Electrical Equipment

Executive Summary: The option of reconditioning existing equipment (instead of purchasing new equipment) exists today. Proper electrical equipment reconditioning provides a means to extend the life of electrical products as well as an opportunity in some cases to update installed equipment with the latest performance and safety features. However, not all components of the electrical infrastructure are candidates for reconditioning. There are a number of precautions that must be adhered to when reconditioning electrical equipment if that equipment is to operate safely and with acceptable performance. Those precautions are discussed below and include the use of design qualified parts, testing to industry-recognized safety standards, original manufacturer specification and/or recommendations, when possible, and reconditioning performed by qualified personnel. The integrity of reconditioned electrical equipment must be established by documenting and demonstrating that component replacement has not compromised the manufacturer’s original specifications and accepted industry standards. The third party certification mark must be removed or obliterated from reconditioned electrical products to indicate that an evaluation of the reconditioning process or reconditioned product has not been conducted by the original third party. As guidance, Appendix B provides a list of electrical products and components that are considered by NEMA suitable for reconditioning and Appendix A provides a list of electrical products considered not suitable for reconditioning. Medical Imaging Equipment is specifically not addressed by this policy (reference MITA 1, Good Refurbishment Practices for Medical Imaging Equipment). Introduction: The U.S. electrical industry includes discussions on implementing new technologies to enhance existing electrical infrastructure. Further, sustainability and safeguarding the environment are growing in importance. In the midst of this is the option for reconditioning existing equipment. Paramount in all this is the fundamental priority that all electrical systems operate while safe-guarding personnel and infrastructure from potential hazards (electrical, mechanical, fire, etc.). This forms the basis for the NEMA position on reconditioning electrical products. Given that electrical systems are diverse in design, function, and application, not all components of the electrical infrastructure are candidates for reconditioning. Definition:

Reconditioning: the process of restoring electromechanical systems, equipment, apparatus or components to operating conditions as recommended by the


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manufacturer’s instructions, using only design qualified parts. Reverse engineered parts (designs copied from existing parts by other manufacturers) are not considered to be “design qualified parts” unless specifically design verified under applicable Standards. Electrical industry practitioners and other organizations may also use the following terms/words to describe the process of reconditioning: remanufacturing, refurbishing, recycling, repairing, restoring, rebuilding, reengineering, and reusing.

In addition to design considerations, it is often impossible to obtain the service records, application environment, and operation parameters of all electrical components. Not having access to such information could have an adverse impact on the final safety and reliability of refurbished or reconditioned equipment. While NEMA supports the reconditioning of some electrical equipment, the components listed in Appendix A are not recommended for reconditioning, unless otherwise indicated by the original manufacturer. Normal servicing of equipment that remains within a facility should not be considered reconditioning or refurbishing. For electrical components suitable for reconditioning listed in Appendix B, the following fundamental tenets have been established. Fundamental Tenets for Reconditioning Electrical Equipment

Reconditioning electrical equipment may be a viable option for extending operational lifetime of equipment and enhancing equipment with additional features.

Electrical equipment reconditioning activity must be based on available guidance documentation from the Original Equipment Manufacturer, or industry-developed standards. Where any conflict in guidance is noted between the OEM and industry standards, the OEM guidance should take precedence.

Electrical equipment must be reconditioned and qualified to an industry-developed standard that ensures equipment is in a usable and safe operating condition. An industry-developed standard is a widely agreed upon rule, set of rules, procedures or requirements for a product, assembly or process which are developed by members or organizations of an aggregate of manufacturing and technically productive enterprises in a particular field. Products deemed to be candidates for reconditioning must be reconditioned and qualified to industry standards containing the most relevant and critical design aspects, testing criteria and manufacturing specifications when the item was built.

Reconditioning work must be performed by qualified personnel. Electrical equipment that has been exposed to adverse conditions, such as fire,

water damage, etc., may not be suitable for reconditioning. A comprehensive assessment of the electrical equipment being considered for

reconditioning with service records, application, environment, service life, and operating parameters is critical before deciding to pursue reconditioning of the electrical equipment and system. Trained, skilled technicians should be able to assess whether a device or system is suitable for reconditioning through physical inspection and test.

Appendix A provides guidance on which components or assemblies of the electrical system are not suitable for reconditioning because they may pose a


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hazard. Appendix B provides guidance on the components or assemblies are suitable for reconditioning.

Reconditioning electrical equipment must utilize electrical product safety standards as they contain design aspects, testing criteria and manufacturing specifications to ensure a given product will function as intended. These requirements are established to deliver a usable and safe operating condition as a key component of intended product functionality.

Electrical Infrastructure and Worker Safety

Electrical equipment that is properly installed, tested, maintained, and operated will provide reliable power as well as protect the electrical infrastructure. The reconditioning of electrical equipment requires the electrical industry, in collaboration with manufacturers, to establish performance specifications and accepted industry standards to help ensure safe and reliable equipment that help protect our electrical infrastructure so workers and users can continue to benefit from a safe and effective electrical system. Reconditioning standards must include prescriptive actions and performance requirements that result in equipment that complies with standards that include but are not limited to CSA, IEC, IEEE, NEC, OSHA, NFPA 70E, NFPA 70B, NETA ATS, NETA MTS, and EASA AR100 for example. Qualified personnel must possess the knowledge of how to assess equipment condition, potential hazards, and specifications to accurately determine the suitability for reconditioning. A safe and reliable electrical infrastructure that can be safely maintained is dependent on compliance with manufacturers’ instructions, qualified workers, proper maintenance, and accepted industry standards for reconditioning activities. Electrical Equipment Reliability, Performance and Safety

Proper electrical equipment reconditioning provides a means to extend the life of electrical products as well as an opportunity to update installed equipment with the latest performance and safety features. Establishing well defined guidelines for those performing the reconditioning activity, based on original manufacturer’s requirements, creates a solid foundation for the electrical industry and users. It is paramount that reconditioned electrical equipment be reliable in not only providing power, but also in safely performing its intended function as part of a safe operating electrical system. Understanding the environment, electrical load characteristics and historical maintenance performed on equipment being considered for reconditioning are all important parts of an assessment for reconditioning that can have a significant bearing on reliability, performance and safety. The electrical equipment manufacturer is the foremost authority on the design, performance and intended safe application of their product. Reconditioned electrical equipment must not compromise the reliability, performance, safe operation, or maintenance of the electrical system. Integrity of Reconditioned Equipment


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Reconditioned electrical equipment must comply with all applicable standards at the time the equipment was initially built as a minimum as well as the original manufacturer’s performance requirements in accordance with the nameplate markings and ratings. Replacement parts shall meet the design criteria (form, fit, and function) for the device to perform its intended function and provide safe operation. Replacement parts shall not include counterfeit parts (i.e., parts that have been misrepresented to be an authorized item of the legally authorized source.) Equipment shall operate safely in its intended application after reconditioning occurs. Care must be taken to ensure specific operations such as timing, sequencing, control, transfer, etc. continue to function in the manner originally intended, unless changes are specified during the reconditioning process. The integrity of reconditioned electrical equipment must be established by documenting and demonstrating that component replacement and performance changes have not compromised the manufacturer’s specifications and accepted industry standards. Listing or Certification Marks

NEMA members manufacture products that are more than likely to be evaluated as part of a third party certification program to nationally recognized safety standards. These products can be marked with a listing or certification mark when the products are manufactured and shipped from the factory. The organization that reconditions the product is responsible for adhering to the guidelines from the issuing agency authorizing the mark to determine if the mark can remain on the product after reconditioning. The organization that reconditions is responsible for any actions necessary for the mark to remain on the product (analysis, testing, etc.). Otherwise, reconditioned electrical products must have their mark removed or obliterated to indicate that an evaluation of the reconditioning process has not been conducted by the original third party. The organization that reconditions the product is additionally responsible for applying a mark or seal that indicates that the equipment has been reconditioned. This mark must provide traceability to the reconditioning organization in the event that it is necessary to determine the details of who reconditioned the equipment and the report on what was completed during this process. There are a number of NEMA products that are not allowed to be reconditioned due to the inherent safety characteristics and requirements for those products to be evaluated according to a regular follow up program to evaluate the safety performance requirements as a condition of maintaining the listing or certification mark. This process cannot be applied to reconditioned electrical products since these are normally destructive tests and sample sets of reconditioned products are not possible due to limited quantities or ratings of specific devices. UL Guidance on the UL Mark When the manufacturer places the UL Mark on the product at the factory, it is their attestation that the product complies with the applicable requirements. Unless there is further oversight or review/inspection (field inspection) UL cannot ascertain that the


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product continues to comply with all requirements should field repairs, modifications or component replacements be made to the product. Obviously there is little control over what manufacturers will or can do to equipment which left the factory with a certification mark. UL has created rebuilt categories where the reconditioning of product is done in an organized consistent manner under the supervision of UL’s FUS (Follow-Up Services) field representatives. In these cases the first action conducted with equipment being rebuilt is the removal of the initial certification mark (if provided). Upon completion of the reconditioning, in accordance with the surveillance document, the manufacturer is permitted to affix a mark which clearly identifies the product as reconditioned.

Cases where a reconditioner is instructed to NOT remove any certification mark will result in confusion. Clearly such equipment in the field, which has undergone modification or reconditioning, is ineligible to bear a mark which designates a compliance with a certification standard.


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APPENDIX A

COMPONENTS OR ASSEMBLIES NOT SUITABLE FOR RECONDITIONING* Adjustable speed drives Arc fault circuit breakers Ballasts Busway (mylar wrapped) Busway (powder coated) Cable tray Cast resin transformers Components containing semiconductors and transistors Control transformers Dry type transformers Electrical Connectors Electrical submetering equipment Electrical vehicle supply equipment Enclosed switches Fire detectors, smoke alarms, co detectors Fire pump controllers Flexible and extension cords Flexible conduit Ground fault circuit breakers High performance wire and cable Lighting controls Liquid filled transformers Low and medium voltage fuse holders Low and medium voltage non-renewable fuses Low voltage power circuit breaker electronic trip units Luminaires Meters (electromechanical, electronic or digital) Meter sockets Molded case circuit breakers Non-Metallic conduit, tubing, raceways and fittings Non-metallic surface raceways and fittings Outlet and junction boxes Overload relays Pin and sleeve plugs receptacles and connectors Power and control cable Protective relays (electronic or digital) Residential panel boards Solid state contactors and starters Solid state drives Strut type channel raceway Surface metal raceways and fittings Surge protective devices Transfer switches Wire or cable Wireway Wiring devices


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*The components or products listed above are not recommended for reconditioning, unless otherwise indicated by the original manufacturer.

APPENDIX B COMPONENTS OR ASSEMBLIES WHICH MAY BE RECONDITIONED Electromechanical protective relays, and current transformers High voltage circuit breakers Industrial and commercial panel boards Low and medium voltage power circuit breakers Low and medium voltage replaceable link fuses Low voltage switchgear Manual and magnetic controllers Medium voltage switchgear Metallic conduit, tubing, raceways and fittings Motor control centers Motors Switchboards Uninterruptible Power Supply Equipment


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The Correlating Committee directs Panel 16 to review all references to Article 310 under their purview.Article 310 has been divided into Article 310,

Conductors for General Wiring, and Article 311, Medium Voltage Conductors and Cables for usability andclarity. Panel 16 shall appoint a task group

to review all necessary references to verify their accuracy and submit Public Comments where necessary.This action instructs Panel 16 to

submit a Public Comment(s) within the time frame required in the NEC schedule.

This action shall be considered as a public comment.



CN_270.pdf CN_270


NOTE: This Public Comment appeared as CC Note No. 270 in the First Draft Report.

The Correlating Committee directs Panel 16 to review all references to Article 310 under their purview. Article 310 has been divided into Article 310,

Conductors for General Wiring, and Article 311, Medium Voltage Conductors and Cables for usability and clarity. Panel 16 shall appoint a task group

to review all necessary references to verify their accuracy and submit Public Comments where necessary. This action instructs Panel 16 to

submit a Public Comment(s) within the time frame required in the NEC schedule.


Related Item

• Correlating Committee Note No. 270


Submitter Full Name: CC on NEC-AAC

Organization: NEC Correlating Committee

Street Address:

City:

State:

Zip:

Submittal Date: Fri Sep 07 14:19:36 EDT 2018

Committee: NEC-P16


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I, CC on NEC-AAC, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am CC on NEC-AAC, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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Correlating Committee Note No. 270-NFPA 70-2018 [ Global Input ]


Submitter Full Name: Sarah CaldwellCommittee: Submittal Date: Fri May 11 17:54:55 EDT 2018

Committee Statement and Meeting Notes

Committee Statement:

The Correlating Committee directs all panels to review all references to Article 310 under their purview. Article 310 has been divided into Article 310, Conductors for General Wiring, and Article 311, Medium Voltage Conductors and Cables for usability and clarity. Each panel shall appoint a task group to review all necessary references to verify their accuracy and submit Public Comments where necessary. This action instructs the referenced panels to submit a Public Comment(s) within the time frame required in the NEC schedule.


Ballot Results

This item has passed ballot

12 Eligible Voters0 Not Returned

12 Affirmative All0 Affirmative with Comments0 Negative with Comments0 Abstention

Affirmative AllBrunssen, James E.

Dressman, Kevin L.

Hickman, Palmer L.

Hittinger, David L.

Holub, Richard A.

Johnston, Michael J.

Kovacik, John R.

Manche, Alan

McDaniel, Roger D.

Pierce, James F.

Saporita, Vincent J.

Williams, David A.

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The Correlating Committee directs Panel 16 to review all Articles, within their purview, that supplement ormodify (90.3) GFCI requirements in 210.8 for correlation, clarity, usability and standardized format. ACorrelating Committee Task Group will be appointed and will submit comments where necessary.




CN_152.pdf CN_152


NOTE: This Public Comment appeared as CC Note No. 152 in the First Draft Report.

The Correlating Committee directs Panel 16 to review all Articles, within their purview, that supplement or modify (90.3) GFCI requirements in 210.8 for correlation, clarity, usability and standardized format. A Correlating Committee Task Group will be appointed and will submit comments where necessary.


Related Item

• Correlating Committee Note No. 152




Street Address:

City:

State:

Zip:


Committee: NEC-P16





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Submitter Full Name: Erik Hohengasser

Committee:

Submittal Date: Thu May 10 18:00:52 EDT 2018

Committee Statement

CommitteeStatement:

The Correlating Committee directs each panel to review all Articles, within their purview, thatsupplement or modify (90.3) GFCI requirements in 210.8 for correlation, clarity, usability andstandardized format. A Correlating Committee Task Group will be appointed and will submit commentswhere necessary.


Ballot Results


12 Eligible Voters

0 Not Returned

12 Affirmative All

0 Affirmative with Comments

0 Negative with Comments

0 Abstention

Affirmative All

Brunssen, James E.

Dressman, Kevin L.

Hickman, Palmer L.

Hittinger, David L.

Holub, Richard A.


Kovacik, John R.

Manche, Alan

McDaniel, Roger D.

Pierce, James F.


Williams, David A.

National Fire Protection Association Report https://submittals.nfpa.org/TerraViewWeb/FormLaunch?id=/TerraView/...

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It was the action of the Correlating Committee to direct Panel 16 to correlate FR-8790 and FR-7892 withPanel 3.

This action will be considered as a public comment.



CN_145.pdf 70_CN 145


NOTE: This Public Comment appeared as CC Note No. 145 in the First Draft Report on First Revision No. 8117.

It was the action of the Correlating Committee to direct Panel 16 to correlate FR-8790 and FR-7892 with Panel 3.


Related Item

• First Revision No. 8117




Street Address:

City:

State:

Zip:


Committee: NEC-P16





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Submitter Full Name: Erik HohengasserCommittee: Submittal Date: Thu May 10 17:11:41 EDT 2018


Committee Statement: It was the action of the Correlating Committee to direct that FR-8790 and FR-7892 be correlated between CMP-3 and CMP-16.


First Revision No. 8117-NFPA 70-2018 [Global Input]

Ballot Results





Dressman, Kevin L.

Hickman, Palmer L.

Hittinger, David L.

Holub, Richard A.


Kovacik, John R.

Manche, Alan

McDaniel, Roger D.

Pierce, James F.


Williams, David A.




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The Correlating Committee understands that this First Revision is based on public inputs from a CorrelatingCommittee appointed Task Group to remove redundant requirements and improve both clarity and usabilityin Chapter 8.

The Correlating Committee advises that article scope statements are the responsibility of the CorrelatingCommittee and the Correlating Committee accepts the panel action.

The Correlating Committee directs that this First Revision be correlated with other articles in Chapter 8,remove all redundant requirements, and include a reference in each article to the general requirements thatapply.

This will be considered as a public comment.



CN_210_-_Global.pdf 70_CN 210



The Correlating Committee understands that this First Revision is based on public inputs from a Correlating Committee appointed Task Group toremove redundant requirements and improve both clarity and usability in Chapter 8.

The Correlating Committee advises that article scope statements are the responsibility of the Correlating Committee and the Correlating Committeeaccepts the panel action.

The Correlating Committee directs that this First Revision be correlated with other articles in Chapter 8, remove all redundant requirements, andinclude a reference in each article to the general requirements that apply.


Related Item

• FR 7512




Street Address:

City:

State:

Zip:

Submittal Date: Mon Aug 20 11:07:00 EDT 2018

Committee: NEC-P16


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Submitter Full Name: Sarah CaldwellCommittee: Submittal Date: Fri May 11 14:44:08 EDT 2018


Committee Statement:

The Correlating Committee understands that this First Revision is based on public inputs from a Correlating Committee appointed Task Group to remove redundant requirements and improve both clarity and usability in Chapter 8.

The Correlating Committee advises that article scope statements are the responsibility of the Correlating Committee and the Correlating Committee accepts the panel action.

The Correlating Committee directs that this First Revision be correlated with other articles in Chapter 8, remove all redundant requirements, and include a reference in each article to the general requirements that apply.


First Revision No. 7512-NFPA 70-2018 [Global Input]

Ballot Results





Dressman, Kevin L.

Hickman, Palmer L.

Hittinger, David L.

Holub, Richard A.


Kovacik, John R.

Manche, Alan

McDaniel, Roger D.

Pierce, James F.


Williams, David A.




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Public Comment No. 1007-NFPA 70-2018 [ Section No. 770.24 ]

770.24 Mechanical Execution of Work.

Optical fiber cables shall be installed in a neat and workmanlike manner. Cables installed exposed on thesurface of ceilings and sidewalls shall be supported by the building structure in such a manner that thecable will not be damaged by normal building use. Such cables shall be secured by hardware, includingstraps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage thecable. The installation shall also conform to300.4 and 300.11. Nonmetallic cable ties and other nonmetalliccable accessories used to secure and support cables in other spaces used for environmental air (plenums)shall be listed as having low smoke and heat release properties in accordance with 300.22(C).

Informational Note No. 1: Accepted industry practices are described in ANSI in ANSI /NECA/BICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling ;ANSI/NECA/ FOA 301-2016, Standard for Installing and Testing Fiber Optic Cables; ANSI/TIA-568.0-D-2015, Generic Telecommunications Cabling for Customer Premises, and ANSI/TIA 568.3-D-2016,Optical Fiber Cabling and Components Standard.

Informational Note No. 2: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning andVentilating Systems, for discrete combustible components installed in accordance with 300.22(C).

Informational Note No. 3: Paint, plaster, cleaners, abrasives, corrosive residues, or othercontaminants may result in an undetermined alteration of optical fiber cable properties.


Substantiation: ANSI/NECA/BICSI 568-2006, Standard for Installing Commercial Building Telecommunications Cabling has been withdrawn from ANSI and has been discontinued.

Related Item

• FR7567


Submitter Full Name: Agnieszka Golriz

Organization: NECA

Street Address:

City:

State:

Zip:


Committee: NEC-P16


I, Agnieszka Golriz, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am Agnieszka Golriz, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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Optical fiber cables shall be installed in a neat and workmanlike manner. Cables installed exposed on thesurface of ceilings and sidewalls shall be supported by the building structure in such a manner that thecable will not be damaged by normal building use. Such cables shall be secured by hardware, includingstraps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage thecable. The installation shall also conform to300.4 and 300.11. Nonmetallic cable ties and other nonmetalliccable accessories used to secure and support cables in other spaces used for environmental air (plenums)shall be listed as having low smoke and heat release properties in accordance with 300.22(C). Metallicmeans of support for flexible conduit and conductors shall be used in spaces above egress, whichincludes doorways, hallways, stairways, corridors, passageways, lobbies, landings, and equivalentspaces.

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI 568-2006,Standard for Installing Commercial Building Telecommunications Cabling; ANSI/NECA/FOA301-2016, Standard for Installing and Testing Fiber Optic Cables; ANSI/TIA-568.0-D-2015, GenericTelecommunications Cabling for Customer Premises, and ANSI/TIA 568.3-D-2016, Optical FiberCabling and Components Standard.




Panel CMP 3 rejected PI 3233 because it was not provided to all corresponding sections. This public comment is being submitted to article 725 and to articles 760, 770 (in this PC) and 805 (in other PCs). The submitter of PI 3233 is correct in stating that "Nonmetallic supports exhibit significant weakening and failure during fires which can affect the safety of occupants and emergency personnel entering and exiting buildings due to entanglement in fallen cable." There are abundant examples of firefighters getting trapped under mazes of cables falling as a result of inadequate supports (perhaps because they burnt or because they lost strength during a fire). I will not repeat here all the information provided by the original submitted but will include the bibliography, as follows:[1] Fire Engineering Training Minutes. Presented by Mike Ciampo, Fire Department of New York.http://www.fireengineering.com/topics/m/video/36928837/the-quick-release-method.htm?q=cable+entanglement)[2] Chubb, M., and Joe Caldwell. 3/1/1995. “Tragedy in a Residential High-Rise, Memphis, Tennessee.” Fire Engineering, http://www.fireengineering.com/articles/print/volume-148/issue-3/features/tragedy-in-a-residential-high-rise-memphistennessee.html[3] April 15, 2013. “Shirley Towers flats blaze: ‘Possible safety breaches’”. BBC. http://www.bbc.co.uk/news/uk-englandhampshire-22126431[4] Rawlinson, J. August 2014, Vol. 34, No. 8, “Change for the Better.” Electrical Contracting News (ECN), pp. 24-25.http://edition.pagesuiteprofessional.co.uk/Launch.aspx?EID=dd8a7ebe-4f8b-4aa6-a9a1-d6b4692f6a23 [5] BS 7671:2008+A2:2013, Requirements for electrical installations. IET Wiring Regulations. Seventeenth edition. [6] BS 5839-1:2013, Fire detection and fire alarm systems for buildings. Code of practice for design, installation, commissioning and maintenance of systems in non-domestic premises






Related Item

• PI3233 • FR7567



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Submitter Full Name: Marcelo Hirschler

Organization: GBH International

Street Address:

City:

State:

Zip:

Submittal Date: Thu Aug 09 18:00:33 EDT 2018

Committee: NEC-P16


I, Marcelo Hirschler, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am Marcelo Hirschler, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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Optical fiber cables shall be installed in a neat and workmanlike manner. Cables installed exposed on thesurface of ceilings and sidewalls shall be supported by the building structure in such a manner that thecable will not be damaged by normal building use. Such cables shall be secured by hardware, includingstraps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage thecable. The installation shall also conform to300.4 and 300.11. Nonmetallic cable ties and other nonmetalliccable accessories used to secure and support cables in other spaces used for environmental air (plenums)shall be listed as having low smoke and heat release properties in accordance with 300.22(C).

Informational Note No. 1: Accepted industry practices are described in ANSI in ANSI /NECA/BICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling ;ANSI/NECA/ FOA 301-2016, Standard for Installing and Testing Fiber Optic Cables; ANSI/TIA-568.0-D-2015, Generic Telecommunications Cabling for Customer Premises, and ANSI/TIA 568.3-D-2016,Optical Fiber Cabling and Components Standard.




As indicated in Public Input 1104 remove the reference to ANSI/NECA/BICSI 568. It has been withdrawn. ANSI/NECA/BICSI 568-2006, Standard for Installing Commercial Building Telecommunications Cabling has been withdrawn from ANSI and has been discontinued. The Terra field in legislative format is not correct.This is how the legislative format should look : Accepted industry practices are described in ANSI/NECA/FOA 301-2016, Standard for Installing and Testing Fiber Optic Cables; ANSI/TIA-568.0-D-2015, Generic Telecommunications Cabling for Customer Premises, and ANSI/TIA 568.3-D-2016, Optical Fiber Cabling and Components Standard.

Related Item

• FR 7567 (Public Input 1104)



Organization: NECA

Street Address:

City:

State:

Zip:

Submittal Date: Fri Aug 10 16:15:41 EDT 2018

Committee: NEC-P16





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770.49 Metal Entrance Conduit Grounding.

Metal conduit containing optical fiber entrance cable shall be connected by a bonding conductor orgrounding electrode conductor to a a grounding electrode or, where present, the building groundingelectrode system in electrode system, in accordance with 770.100(B).


Not all buildings or structures have a “building grounding electrode system”. This situation is described in 770.100(B)(3). The text “grounding electrode” must be retained to correlate with 770.100(B)(3) where a grounding electrode may be available or established in the absence of a “building grounding electrode system”. Eliminating the text “grounding electrode” and replacing it with “building grounding electrode system” will result in a correlation issue with 770.100(B)(3).











Related Item

• FR 7582


Submitter Full Name: James Brunssen

Organization: Telcordia Technologies (Ericss

Affiliation: ATIS

Street Address:

City:

State:

Zip:

Submittal Date: Tue Jul 03 15:19:54 EDT 2018

Committee: NEC-P16


I, James Brunssen, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am James Brunssen, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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Metal conduit containing optical fiber entrance cable shall be connected by a bonding conductor orgrounding electrode conductor to a building grounding electrode system in accordance with 770.100(B).


The term "building grounding electrode system" is used only once in the code (section 800.90), where it refers to a building. All other instances in the code refer to "grounding electrode system" including those in article 250. The issue is that this could refer to a structure that is not a building. Note also the comments from Bill McCoy and Jim Brunssen.






Related Item

• fr7582




Street Address:

City:

State:

Zip:


Committee: NEC-P16





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770.110 Raceways, Cable Routing Assemblies, and Cable Trays for Optical Fiber Cables.

(A) Types of Raceways.

Optical fiber cables shall be permitted to be installed in any raceway that complies with either770.110(A)(1) or (A)(2).

(1) Raceways Recognized in Chapter 3.

Optical fiber cables shall be permitted to be installed in any raceway included in Chapter 3. The racewaysshall be installed in accordance with the requirements of Chapter 3.

(2) Communications Raceways.

Optical fiber cables shall be permitted to be installed in plenum listed communications raceways , risercommunications raceways, and general-purpose communications raceways selected in accordance withTable 805.154(b) , listed in accordance with 805.113 , and installed in accordance with 362.24 through362.56 , where the requirements applicable to electrical nonmetallic tubing (ENT) apply. a) .

(3) Innerduct for Optical Fiber Cables.

Listed plenum communications raceway, listed riser communications raceway, and listed general-purposecommunications raceway selected in accordance with Table 805.154(b) shall be permitted to be installed asinnerduct in any type of listed raceway permitted in Chapter 3.

(B) Raceway Fill for Optical Fiber Cables.

Raceway fill for optical fiber cables shall comply with either 770.110(B)(1) or (B)(2).

(1) Without Electric Light or Power Conductors.

Where optical fiber cables are installed in raceway without electric light or power conductors, the racewayfill requirements of Chapters 3 and 9 shall not apply.

(2) Nonconductive Optical Fiber Cables with Electric Light or Power Conductors.

Where nonconductive optical fiber cables are installed with electric light or power conductors in a raceway,the raceway fill requirements of Chapters 3 and 9 shall apply.

(C) Cable Routing Assemblies.

Optical fiber cables shall be permitted to be installed in plenum listed cable routing assemblies , risercable routing assemblies, and general-purpose cable routing assemblies selected in accordance with Table805.154(c) , listed in accordance with 805.182 , and installed in accordance with 805.110(C) and805.113 . b) .

(D) Cable Trays.

Optical fiber cables shall be permitted to be installed in metal or listed nonmetallic cable tray systems.


This PC coordinates with PC 61 which moves the listing, applications and installation rules for communications raceways, and cable routing assemblies from Article 805 into new general Article 800.




Public Comment No. 103-NFPA 70-2018 [Section No. 805.110] Coordinating PC for Article 805



Related Item

• FR 7512


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Submitter Full Name: Terry Peters

Organization: PLASTICS Industry Association

Affiliation: PLASTICS Industry Association

Street Address:

City:

State:

Zip:

Submittal Date: Sat Jun 30 09:06:22 EDT 2018

Committee: NEC-P16


I, Terry Peters, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that Iacquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similar orderivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enter intothis copyright assignment.

By checking this box I affirm that I am Terry Peters, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, uponmy submission of this form, have the same legal force and effect as a handwritten signature


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Public Comment No. 738-NFPA 70-2018 [ Section No. 770.110(D) ]

(D) Cable Trays.

Optical Non-conductive optical fiber cables shall be permitted to be installed in metal or listed nonmetalliccable tray systems. Conductive or armored optical fiber cables shall be limited to cable trays in low voltageapplications.


Conductive fiber optical cable shall be installed per 392.20(B) and kept separated from cables operating at 1000 volts or more. The proposed revision emphasis that these cables needs to be restricted in these applications.

This Comment was submitted by CMP-8 Correlating Committee Task Group consisting of David Kendall, Pete Jackson, Ken Hengst, Doug Adams, Rhett Roe, and Gary Johnson.

Related Item

• FR 7586 • CC Note No. 146


Submitter Full Name: David Kendall

Organization: Thomas & Betts Corporation

Street Address:

City:

State:

Zip:


Committee: NEC-P16


I, David Kendall, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am David Kendall, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, uponmy submission of this form, have the same legal force and effect as a handwritten signature


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Public Comment No. 123-NFPA 70-2018 [ Section No. 770.113(C) ]

(C) Other Spaces Used for Environmental Air (Plenums).

The following cables shall be permitted in other spaces used for environmental air as described in300.22(C):

(1) Types OFNP and OFCP

(2) Types OFNP and OFCP installed in plenum communications raceways listed in accordance with805.182

(3) Types OFNP and OFCP installed in plenum cable routing assemblies listed in accordance with805.182

(4) Types OFNP and OFCP supported by open metal cable tray systems

(5) Types OFNP, OFCP, OFNR, OFCR, OFNG, OFCG, OFN, and OFC installed in raceways that areinstalled in compliance with 300.22(C)

(6) Types OFNP, OFCP, OFNR, OFCR, OFNG, OFCG, OFN, and OFC supported by solid bottom metalcable trays with solid metal covers in other spaces used for environmental air (plenums), as describedin 300.22(C)

(7) Types OFNP, OFCP, OFNR, OFCR, OFNG, OFCG, OFN, and OFC installed in plenumcommunications raceways, riser communications raceways, or general-purpose communicationsraceways listed in accordance with 805.182 or supported by solid bottom metal cable trays with solidmetal covers in other spaces used for environmental air (plenums), as described in 300.22(C)

Informational Note: For information on fire protection of wiring installed in other spaces used forenvironmental air, see NFPA 90A-2018, Standard for the Installation of Air-Conditioning andVentilating Systems.


PC 61 moves the requirements for cable routing assemblies and communications raceways from Article 805 (formerly 800) to the new Article 800. However, instead of correcting the article number, we recommend deleting the text dealing with listing of cable routing assemblies and communications raceways because it is redundant. See 770.110.




Related Item

• FR 7512





Street Address:

City:

State:

Zip:

Submittal Date: Sun Jul 01 09:00:33 EDT 2018

Committee: NEC-P16


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770.114 Grounding.

Non–current-carrying conductive members of optical fiber cables shall be bonded to a grounded equipmentrack or enclosure, or grounded in accordance with the grounding methods specified by 770.110 100 (B)(2).


770.114 states to apply grounding methods in accordance with section 770.110 (B) (2)

770.110 (B) (2) has nothing to do with grounding methods. Probably an error in print. I assume it means to refer to grounding methods in section 770.100 (B) (2).

Related Item

• NEC Article 770


Submitter Full Name: Rich Grooms

Organization: Amazon Web Services

Street Address:

City:

State:

Zip:


Committee: NEC-P16


I, Rich Grooms, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that Iacquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similar orderivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enter intothis copyright assignment.

By checking this box I affirm that I am Rich Grooms, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, uponmy submission of this form, have the same legal force and effect as a handwritten signature


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Public Comment No. 1174-NFPA 70-2018 [ Section No. 770.133(A) ]

(A) With Conductors for Electric Light, Power, Class 1, Non–Power-Limited Fire Alarm, or Medium-PowerNetwork-Powered Broadband Communications Circuits.

When optical fibers are within the same composite cable for electric light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuits operating at1000 volts or less, they shall be permitted to be installed only where the functions of the optical fibers andthe electrical conductors are associated.

Conductive optical fiber cables contained in an armored or metal-clad–type sheath and nonconductiveoptical fiber cables shall be permitted to occupy the same cable tray or raceway with conductors forelectric light, power, Class 1, non–power-limited fire alarm, Type ITC, or medium-power network-poweredbroadband communications circuits operating at 1000 volts or less. Conductive optical fiber cables withoutan armored or metal-clad–type sheath shall not be permitted to occupy the same cable tray or racewaywith conductors for electric light, power, Class 1, non–power-limited fire alarm, Type ITC, or medium-powernetwork-powered broadband communications circuits.

Optical fibers in composite optical fiber cables containing only current-carrying conductors for electric light,power, or Class 1 circuits rated 1000 volts or less shall be permitted to occupy the same cabinet, cabletray, outlet box, panel, raceway, or other termination enclosure with conductors for electric light, power, orClass 1 circuits operating at 1000 volts or less.

Nonconductive optical fiber cables shall not be permitted to occupy the same cabinet, outlet box, panel, orsimilar enclosure housing the electrical terminations of an electric light, power, Class 1, non–power-limitedfire alarm, or medium-power network-powered broadband communications circuit.

Exception No. 1: Occupancy of the same cabinet, outlet box, panel, or similar enclosure shall bepermitted where nonconductive optical fiber cable is functionally associated with the electric light, power,Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communicationscircuit.

Exception No. 2: Occupancy of the same cabinet, outlet box, panel, or similar enclosure shall bepermitted where nonconductive optical fiber cables are installed in factory- or field-assembled controlcenters.

Exception No. 3: In industrial establishments only, where conditions of maintenance and supervisionensure that only qualified persons service the installation, nonconductive optical fiber cables shall bepermitted with circuits exceeding 1000 volts.

Exception No. 4: In industrial establishments only, where conditions of maintenance and supervisionensure that only qualified persons service the installation, optical fibers in composite optical fiber cablescontaining current-carrying conductors operating over 1000 volts shall be permitted to be installed.

Exception No. 5: Where all of the conductors of electric light, power, Class 1, non–power-limited firealarm, and medium-power network-powered broadband communications circuits are separated from allof the optical fiber cables by a permanent barrier or listed divider.



CN_144.pdf 70_CN 144



The Correlating Committee directs the panel to consider rewriting the five Exceptions into positive text and relocating the exceptions into a list.

The Correlating Committee notes Exception No. 5 is not written in mandatory language and is not a complete sentence.



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Related Item

• FR 7615




Street Address:

City:

State:

Zip:


Committee: NEC-P16





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October 22 - 27, 2018 of 563


(A) With Conductors for Electric Light, Power, Class 1, Non–Power-Limited Fire Alarm, or Medium-PowerNetwork-Powered Broadband Communications Circuits.

When optical fibers are within the same composite cable for electric light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuits operating at1000 volts or less, they shall be permitted to be installed only where the functions of the optical fibers andthe electrical conductors are associated.

Conductive optical fiber cables contained in an armored or metal-clad–type sheath and nonconductiveoptical fiber cables shall be permitted to occupy the same cable tray or raceway with conductors for electriclight, power, Class 1, non–power-limited fire alarm, Type ITC, or medium-power network-poweredbroadband communications circuits operating at 1000 volts or less. Conductive optical fiber cables withoutan armored or metal-clad–type sheath shall not be permitted to occupy the same cable tray or racewaywith conductors for electric light, power, Class 1, non–power-limited fire alarm, Type ITC, or medium-powernetwork-powered broadband communications circuits.

Optical fibers in composite optical fiber cables containing only current-carrying conductors for electric light,power, or Class 1 circuits rated 1000 volts or less shall be permitted to occupy the same cabinet, cabletray, outlet box, panel, raceway, or other termination enclosure with conductors for electric light, power, orClass 1 circuits operating at 1000 volts or less.

Nonconductive optical fiber cables shall not be permitted to occupy the same cabinet, outlet box, panel, orsimilar enclosure housing the electrical terminations of an electric light, power, Class 1, non–power-limitedfire alarm, or medium-power network-powered broadband communications circuit.

Exception No. 1: Occupancy of the same cabinet, outlet box, panel, or similar enclosure shall bepermitted where nonconductive optical fiber cable is functionally associated with the electric light, power,Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communicationscircuit.

Exception No. 2: Occupancy of the same cabinet, outlet box, panel, or similar enclosure shall bepermitted where nonconductive optical fiber cables are installed in factory- or field-assembled controlcenters.

Exception No. 3: In industrial establishments only, where conditions of maintenance and supervisionensure that only qualified persons service the installation, nonconductive optical fiber cables shall bepermitted with circuits exceeding 1000 volts.

Exception No. 4: In industrial establishments only, where conditions of maintenance and supervisionensure that only qualified persons service the installation, optical fibers in composite optical fiber cablescontaining current-carrying conductors operating over 1000 volts shall be permitted to be installed.

Exception No. 5: Where all of the conductors of electric light, power, Class 1, non–power-limited firealarm, and medium-power network-powered broadband communications circuits are separated from allof the optical fiber cables by a permanent barrier or listed divider.

Delete the text in FR 7615 and replace it with the text in the attachment.



Attachment_for_PC_245.docx Revised text for 770.133(A) in MS Word format

Attachment_for_PC_245.pdf Revised text for 770.133(A) in PDF format


The primary purpose of this Public comment is to correct the text referring to armored optical fiber cables. We quote the affirmative ballot comment submitted by Gerald Dorna.

"The new text refers to “Conductive optical fiber cables contained in an armored or metal clad type sheath”. The presence of armor or a metal clad sheath is what makes the cable a “conductive” optical fiber cable. The conductive optical fiber cable isn’t contained in the armor or metal cladding because the armor or metal cladding is


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part of the cable. The text should be revised to read “Conductive optical fiber cables which have an armored or metal clad type sheath”. An example of another type of conductive optical fiber cable is a cable with a metal strength member."

This Public Comment also rewrites the exceptions into positive text as directed by the Correlating Committee.

Related Item

• FR 7615


Submitter Full Name: David Kiddoo

Organization: CCCA

Affiliation: Communications Cable and Connectivity Association

Street Address:

City:

State:

Zip:

Submittal Date: Fri Jul 20 10:11:12 EDT 2018

Committee: NEC-P16


I, David Kiddoo, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that Iacquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similar orderivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enter intothis copyright assignment.

By checking this box I affirm that I am David Kiddoo, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, uponmy submission of this form, have the same legal force and effect as a handwritten signature


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770.133(A) With Conductors for Electric Light, Power, Class 1, Non–Power-Limited Fire Alarm, or Medium-Power Network-Powered Broadband Communications Circuits.

(A) In Cable Trays and Raceways. Conductive optical fiber cables contained in an armored or metal-clad–type sheath and nonconductive optical fiber cables shall be permitted to occupy the same cable tray or raceway with conductors for electric light, power, Class 1, non–power-limited fire alarm, Type ITC, or medium-power network-powered broadband communications circuits operating at 1000 volts or less. Conductive optical fiber cables without an armored or metal-clad–type sheath shall not be permitted to occupy the same cable tray or raceway with conductors for electric light, power, Class 1, non–power-limited fire alarm, Type ITC, or medium-power network-powered broadband communications circuits unless all of the conductors of electric light, power, Class 1, non–power-limited fire alarm, and medium-power network-powered broadband communications circuits are separated from all of the optical fiber cables by a permanent barrier or listed divider.

(B) In Cabinets, Outlet Boxes and Similar Enclosures. Nonconductive optical fiber cables shall not be permitted to occupy the same cabinet, outlet box, panel, or similar enclosure housing the electrical terminations of an electric light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuit unless one or more of the following conditions exist:

1) The nonconductive optical fiber cables are functionally associated with the electric light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuit.

2) The conductors for electric light, power, Class 1, non–power-limited fire alarm, Type ITC, or medium-power network-powered broadband communications circuits operate at 1000 volts or less

3) The nonconductive optical fiber cables and the electrical terminations of electric

light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuit are installed in factory- or field-assembled control centers.

4) The nonconductive optical fiber cables are installed in an industrial establishment

where conditions of maintenance and supervision ensure that only qualified persons service the installation.

When optical fibers are within the same composite cable for electric light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuits operating at 1000 volts or less, they shall be permitted to be


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installed only where the functions of the optical fibers and the electrical conductors are associated. Optical fibers in composite optical fiber cables containing only current-carrying conductors for electric light, power, or Class 1 circuits rated 1000 volts or less shall be permitted to occupy the same cabinet, cable tray, outlet box, panel, raceway, or other termination enclosure with conductors for electric light, power, or Class 1 circuits operating at 1000 volts or less. Optical fibers in composite optical fiber cables containing current-carrying conductors for electric light, power, or Class 1 circuits rated over 1000 volts shall be permitted to occupy the same cabinet, cable tray, outlet box, panel, raceway, or other termination enclosure with conductors for electric light, power, or Class 1 circuits In industrial establishments, where conditions of maintenance and supervision ensure that only qualified persons service the installation.


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770.133(A) With Conductors for Electric Light, Power, Class 1, Non–Power-Limited Fire Alarm, or Medium-Power Network-Powered Broadband Communications Circuits.

(A) In Cable Trays and Raceways.Conductive optical fiber cables contained in an armored or metal-clad–type sheath and nonconductive optical fiber cables shall be permitted to occupy the same cable tray or raceway with conductors for electric light, power, Class 1, non–power-limited fire alarm, Type ITC, or medium-power network-powered broadband communications circuits operating at 1000 volts or less.

Conductive optical fiber cables without an armored or metal-clad–type sheath shall not be permitted to occupy the same cable tray or raceway with conductors for electric light, power, Class 1, non–power-limited fire alarm, Type ITC, or medium-power network-powered broadband communications circuits unless all of the conductors of electric light, power, Class 1, non–power-limited fire alarm, and medium-power network-powered broadband communications circuits are separated from all of the optical fiber cables by a permanent barrier or listed divider.

(B) In Cabinets, Outlet Boxes and Similar Enclosures.Nonconductive optical fiber cables shall not be permitted to occupy the same cabinet, outlet box, panel, or similar enclosure housing the electrical terminations of an electric light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuit unless one or more of the following conditions exist:

1) The nonconductive optical fiber cables are functionally associated with the electric light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuit.

2) The conductors for electric light, power, Class 1, non–power-limited fire alarm, Type ITC, or medium-power network-powered broadband communications circuits operate at 1000 volts or less

3) The nonconductive optical fiber cables and the electrical terminations of electric light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuit are installed in factory- or field-assembled control centers.

4) The nonconductive optical fiber cables are installed in an industrial establishment where conditions of maintenance and supervision ensure that only qualified persons service the installation.

When optical fibers are within the same composite cable for electric light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuits operating at 1000 volts or less, they shall be permitted to be


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installed only where the functions of the optical fibers and the electrical conductors are associated.

Optical fibers in composite optical fiber cables containing only current-carrying conductors for electric light, power, or Class 1 circuits rated 1000 volts or less shall be permitted to occupy the same cabinet, cable tray, outlet box, panel, raceway, or other termination enclosure with conductors for electric light, power, or Class 1 circuits operating at 1000 volts or less.

Optical fibers in composite optical fiber cables containing current-carrying conductors for electric light, power, or Class 1 circuits rated over 1000 volts shall be permitted to occupy the same cabinet, cable tray, outlet box, panel, raceway, or other termination enclosure with conductors for electric light, power, or Class 1 circuits In industrial establishments, where conditions of maintenance and supervision ensure that only qualified persons service the installation.


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Public Comment No. 1377-NFPA 70-2018 [ New Section after 770.179(F) ]

ADD NEW 770.179(G)

(G) Optional Markings. Cables shall be permitted to be surface marked to indicate special characteristicsof the cable materials.

Informational Note: These markings may include, but are not limited to, markings for limited smoke (LS),halogen free (HF), low smoke halogen free (LSHF) and sunlight resistant.


PI 1776 was resolved with the statement:“There is no need to provide for cable listings that have no application in the NEC. Optional markings are not prohibited.” However, cable installations that are under the purview of the NEC are often also required to have special characteristics because of the environment the cables are installed in. For example, wet locations, outdoor locations, spaces with limited or reduced ventilation capabilities, etc. As a result, it is not uncommon for cables to contain optional markings identifying these special material characteristics. Adding a new subheading (G) makes it clear that optional markings are permitted on cables. Optional marking permissions already appear in other parts of the NEC such as 310.120 (D), 400.6(B) and 402.9(B).

Panel 3 has accepted as a first revision the inclusion of optional markings in article 725, recognizing the widespread use and importance of such markings in conveying relevant information about cable properties to installers and AHJs. Correlating these articles would be desirable.

Providing examples in an informational note will assist installers and AHJs by standardizing the terminology and helps avoid misuse and misrepresenting the cable markings. These examples make it clear what extra markings of this kind are for and what they mean. Since halogen free materials are taking on increasing importance in specialty installations involving spaces with reduced ventilation capabilities such as elevators, subways, tunnels and the like, we believe that it is an opportune time to include “halogen free” in the examples.

The proper use of appropriately marked and verified specialty cables enhances safety. Misinformation and misuse leads to a reduction in safety.

Related Item

• PI1776


Submitter Full Name: Randolph Ivans

Organization: UL LLC

Street Address:

City:

State:

Zip:


Committee: NEC-P16


I, Randolph Ivans, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am Randolph Ivans, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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Public Comment No. 2000-NFPA 70-2018 [ Chapter 8 ]

Chapter 8 Communications Systems

Article 800 General Requirements for Communications Systems

Part I. General

800.1 Scope

This article covers communications circuits, community antenna television and radio distribution systems,network-powered broadband communications systems, and premises-powered broadbandcommunications systems, in addition to the specific requirements in Articles 805, 820, 830, and 840.

Informational Note No. 1: See 90.2(B)(4) for installations of circuits and equipment that are notcovered.

Informational Note No. 2: For further information for remote control, signaling, and power-limitedcircuits, see Article 725.

Informational Note No. 3: For further information for fire alarm systems, see Article 760.

800.2 Definitions.

See Part I of Article 100. The definitions in 800.2 shall apply only within Articles 805, 820, 830, and 840.

Abandoned Cable.

Installed cable that is not terminated as described in 805.2 for communications cable, 820.2 for CATVcoaxial cable, or 830.2 for network-powered broadband communications cable and that is not identified forfuture use with a tag.

Communications Service Provider.

An organization, business, or individual that offers communications service to others.

Exposed (to Accidental Contact).

A circuit in such a position that, in case of failure of supports or insulation, contact with another circuit mayresult.

Informational Note: See Part I of Article 100 for two other definitions of Exposed: Exposed (asapplied to live parts) and Exposed (as applied to wiring methods).

Point of Entrance.

The point within a building at which the wire or cable emerges from an external wall or from a concretefloor slab. See 830.2 for additional provisions pertaining to Article 830.

Premises.

The land and buildings of a user located on the user side of the utility-user network point of demarcation.

800.3 Other Articles.

Only those sections of Chapters 1 through 7 referenced in Chapter 8 shall apply to Chapter 8.

(A) Hazardous (Classified) Locations.

Circuits and equipment installed in a location that is classified in accordance with 500.5 and 505.5 shallcomply with the applicable requirements of Chapter 5.

(B) Wiring in Ducts for Dust, Loose Stock, or Vapor Removal.

The requirements of 300.22(A) shall apply.

(C) Equipment in Other Space Used for Environmental Air.

The requirements of 300.22(C)(3) shall apply.

(D) Installation and Use.

The requirements of 110.3(B) shall apply.


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(E) Other Communications Systems.

As appropriate for the system involved, communications systems shall comply with the requirements of thefollowing:

(1) Communications circuits — Article 805

(2) Radio and television equipment — Article 810

(3) Community antenna television and radio distribution systems — Article 820

(4) Network-powered broadband communications systems — Article 830

(5) Premises-powered broadband communications systems — Article 840

800.21 Access to Electrical Equipment Behind Panels Designed to Allow Access.

Access to electrical equipment shall not be denied by an accumulation of wires and cables that preventsremoval of panels, including suspended ceiling panels.


Circuits and equipment shall be installed in a neat and workmanlike manner. Cables installed exposed onthe surface of ceilings and sidewalls shall be supported by the building structure in such a manner that thecable will not be damaged by normal building use. Such cables shall be secured by hardware, includingstraps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage thecable. The installation shall also conform to 300.4(D) and 300.11. Nonmetallic cable ties and othernonmetallic cable accessories used to secure and support cables in other spaces used for environmentalair (plenums) shall be listed as having low smoke and heat release properties in accordance with805.170(C). See 830.24 and 840.24 for additional provisions pertaining to Articles 830 and 840.

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1- D-2015, Commercial Building Telecommunications Infrastructure Standard; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012, ResidentialTelecommunications Infrastructure Standard; ANSI/TIA-1005-A-2012, TelecommunicationsInfrastructure Standard for Industrial Premises; ANSI/ TIA-1179-2010, Healthcare FacilityTelecommunications Infrastructure Standard; ANSI/TIA-4966-2014, TelecommunicationsInfrastructure Standard for Educational Facilities; and other ANSI-approved installation standards.


Informational Note No. 3: Paint, plaster, cleaners, abrasives, corrosive residues, or othercontaminants may result in an undetermined alteration of wire and cable properties.

800.25 Abandoned Cables.

The accessible portion of abandoned cables shall be removed. Where cables are identified for future usewith a tag, the tag shall be of sufficient durability to withstand the environment involved.

800.26 Spread of Fire or Products of Combustion.

Installations of cables, communications raceways, cable routing assemblies in hollow spaces, verticalshafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products ofcombustion will not be substantially increased. Openings around penetrations of cables, communicationsraceways, and cable routing assemblies through fire-resistant-rated walls, partitions, floors, or ceilingsshall be firestopped using approved methods to maintain the fire resistance rating.

Informational Note: Directories of electrical construction materials published by qualified testinglaboratories contain many listing installation restrictions necessary to maintain the fire-resistiverating of assemblies where penetrations or openings are made. Building codes also containrestrictions on membrane penetrations on opposite sides of a fire resistance–rated wall assembly.An example is the 600 mm (24 in.) minimum horizontal separation that usually applies betweenboxes installed on opposite sides of the wall. Assistance in complying with 800.26 can be found inbuilding codes, fire resistance directories, and product listings.

800.27 Temperature Limitation of Wires and Cables.

No wire or cable shall be used in such a manner that its operating temperature exceeds that of its rating.

Part II. Wires and Cables Outside and Entering Buildings

800.44 Overhead (Aerial) Wires and Cables.


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Overhead (aerial) wires and cables entering buildings shall comply with 800.44(A) and 805.44 forcommunications cable, 820.44 for CATV coaxial cable, 830.44 for network-powered broadbandcommunications cable, and 840.44 for premises-powered broadband communications systems.

(A) On Poles and In-Span.

Where wires and cables and electric light or power conductors are supported by the same pole or are runparallel to each other in-span, the conditions described in 800.44(A)(1) through (A)(3) shall be met.

(1) Relative Location.

Where practicable, the wires and cables shall be located below the electric light or power conductors.

(2) Attachment to Cross-Arms.

Wires and cables shall not be attached to a cross-arm that carries electric light or power conductors.

(3) Climbing Space.

The climbing space through wires and cables shall comply with the requirements of 225.14(D).

800.48 Unlisted Cables Entering Buildings.

Unlisted outside plant cables shall be permitted to be installed in building spaces other than risers, ductsused for environmental air, plenums used for environmental air, and other spaces used for environmentalair, where the length of the cable within the building, measured from its point of entrance, does not exceed15 m (50 ft) and the cable enters the building from the outside and is terminated as specified in 805.48 forcommunications cable and 820.48 for CATV coaxial cable as applicable. The point of entrance shall bepermitted to be extended from the penetration of the external wall or floor slab by continuously enclosingthe entrance cables in rigid metal conduit (RMC) or intermediate metal conduit (IMC) to the point ofemergence.


Metal conduit containing entrance wire or cable shall be connected by a bonding conductor or groundingelectrode conductor to the grounding electrode or the building grounding electrode system in accordancewith 800.100(B).

Part III. Protection

800.80 Protection.

Protection of communications systems shall comply with Article 805, Part III for communications circuits,Article 820, Part III for community antenna television and radio distribution systems, Article 830, Part III fornetwork-powered broadband communications systems, or Article 840, Part III for premises-poweredbroadband communications systems.

Part IV. Grounding Methods

800.100 Cable and Primary Protector Bonding and Grounding.

(A) Bonding Conductor or Grounding Electrode Conductor.

(1) Insulation.

The bonding conductor or grounding electrode conductor shall be listed and shall be permitted to beinsulated, covered, or bare.

(2) Material.

The bonding conductor or grounding electrode conductor shall be copper or other corrosion-resistantconductive material, stranded or solid.

(3) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. The bondingconductor or grounding electrode conductor shall not be required to exceed 6 AWG.


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(4) Length.

The bonding conductor or grounding electrode conductor shall be as short as practicable. In one- and two-family dwellings, the bonding conductor or grounding electrode conductor shall be as short as practicable,not to exceed 6.0 m (20 ft) in length.

Informational Note: Similar bonding conductor or grounding electrode conductor length limitationsapplied at apartment buildings and commercial buildings help to reduce voltages that may bedeveloped between the building's power and communications systems during lightning events.

Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximumbonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate ground rodmeeting the minimum dimensional criteria of 800.100(B)(3)(2) or (B)(3)(3) shall be driven, the bondingconductor or grounding electrode conductor shall be connected to the ground rod in accordance with800.100(C), and the ground rod shall be connected to the power grounding electrode system inaccordance with 800.100(D).

(5) Run in Straight Line.

The bonding conductor or grounding electrode conductor shall be run in as straight a line as practicable.

(6) Physical Protection.

Bonding conductors and grounding electrode conductors shall be protected where exposed to physicaldamage. Where the bonding conductor or grounding electrode conductor is installed in a metal raceway,both ends of the raceway shall be bonded to the contained conductor or to the same terminal or electrodeto which the bonding conductor or grounding electrode conductor is connected.

(B) Electrode.

The bonding conductor or grounding electrode conductor shall be connected in accordance with800.100(B)(1), (B)(2) , or (B)(3).

(1) In Buildings or Structures with an Intersystem Bonding Termination.

If the building or structure served has an intersystem bonding termination as required by 250.94, thebonding conductor shall be connected to the intersystem bonding termination.

(2) In Buildings or Structures with Grounding Means.

If an intersystem bonding termination is established, 250.94(A) shall apply. If the building or structureserved has no intersystem bonding termination, the bonding conductor or grounding electrode conductorshall be connected to the nearest accessible location on one of the following:

(1) The building or structure grounding electrode system as covered in 250.50

(2) The grounded interior metal water piping system, within 1.5 m (5 ft) from its point of entrance to thebuilding, as covered in 250.52

(3) The power service accessible means external to enclosures using the options identified in 250.94(A),Exception

(4) The nonflexible metal power service raceway

(5) The service equipment enclosure

(6) The grounding electrode conductor or the grounding electrode conductor metal enclosure of thepower service

(7) The grounding electrode conductor or the grounding electrode of a building or structure disconnectingmeans that is connected to a grounding electrode as covered in 250.32

A bonding device intended to provide a termination point for the bonding conductor (intersystem bonding)shall not interfere with the opening of an equipment enclosure. A bonding device shall be mounted on non-removable parts. A bonding device shall not be mounted on a door or cover even if the door or cover isnon-removable.


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(3) In Buildings or Structures Without an Intersystem Bonding Termination or Grounding Means.

If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 800.100(B)(2), the grounding electrode conductor shall be connected to one of the following:

(1) To any one of the individual grounding electrodes described in 250.52(A)(1), (A)(2), (A)(3), or (A)(4)

(2) If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 800.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes described in250.52(A)(5), (A)(7), and (A)(8)

(3) For communications circuits or network-powered broadband communications systems, to a groundrod or pipe not less than 1.5 m (5 ft) in length and 12.7 mm (0.5 in.) in diameter, driven, wherepracticable, into permanently damp earth and separated from lightning protection system conductors,as covered in 805.53, and at least 1.8 m (6 ft) from electrodes of other systems

Steam, hot water pipes, or lightning protection system conductors shall not be employed as groundingelectrodes for bonding conductors or grounding electrode conductors.

(C) Electrode Connection.

Connections to grounding electrodes shall comply with 250.70.

(D) Bonding of Electrodes.

A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between the groundingelectrode and power grounding electrode system at the building or structure served where separateelectrodes are used.

Informational Note No. 1: See 250.60 for connection to a lightning protection system.

Informational Note No. 2: Bonding together of all separate electrodes limits potential differencesbetween them and between their associated wiring systems.

Part V. Installation Methods Within Buildings

800.179 Wires and Cables.

Wires and cables shall be listed in accordance with 805.179, 820.179, 830.179, or 840.170 as applicable.Wires and cables shall have a temperature rating of not less than 60°C (140°F). The temperature ratingshall be marked on the jacket of cables that have a temperature rating exceeding 60°C (140°F).

Part VI. Listing Requirements

800.180 Grounding Devices.

Where bonding or grounding is required, devices used to connect a shield, a sheath, or non-current-carrying metallic members of a cable to a bonding conductor or grounding electrode conductor shall belisted or be part of listed equipment.

Article 805 Communications Circuits

Part I. General

805.1 Scope.

This article covers communications circuits and equipment.

Informational Note No. 1: See 90.2(B)(4) for installations of communications circuits and equipmentthat are not covered.

Informational Note No. 2: For further information for remote-control, signaling, and power-limitedcircuits, see Article 725.


805.2 Definitions.

See Part I of Article 100. The definitions in this section shall apply only within Article 805.

Abandoned Communications Cable.

Installed communications cable that is not terminated at both ends at a connector or other equipment andnot identified for future use with a tag.

Block.

A square or portion of a city, town, or village enclosed by streets and including the alleys so enclosed, butnot any street.


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Cable.

A factory assembly of two or more conductors having an overall covering.

Cable Sheath.

A covering over the conductor assembly that may include one or more metallic members, strengthmembers, or jackets.

Communications Circuit.

The circuit that electrically extends service from the communications utility or service provider up to andincluding the customer's communications equipment.

Communications Circuit Integrity (CI) Cable.

Cable used in communications systems to ensure continued operation of critical circuits during a specifiedtime under fire conditions.


A circuit that is in such a position that, in case of failure of supports or insulation, contact with anothercircuit may result.

Informational Note: See Part I of Article 100 for two other definitions of Exposed.

Point of Entrance.

The point within a building at which the communications wire or cable emerges from an external wall orfrom a concrete floor slab.

Premises.


Wire.

A factory assembly of one or more insulated conductors without an overall covering.


Installations of communications circuits and equipment shall comply with 805.3(A) through (G). Only thosesections of Chapters 1 through 7 referenced in Article 805 shall apply to communications circuits andequipment.


Communications circuits and equipment installed in a location that is classified in accordance with 500.5and 505.5 shall comply with the applicable requirements of Chapter 5.







(E) Network-Powered Broadband Communications Systems.

Article 830 shall apply to network-powered broadband communications systems.

(F) Premises-Powered Broadband Communications Systems.

Article 840 shall apply to premises-powered broadband communications systems.

(G) Optical Fiber Cable.

Where optical fiber cable is used, either in whole or in part, to provide a communications circuit within abuilding, Article 770 shall apply to the installation of the optical fiber portion of the communications circuit.

805.18 Installation of Equipment.

Equipment electrically connected to a communications network shall be listed in accordance with 805.170.

Exception: This listing requirement shall not apply to test equipment that is intended for temporaryconnection to a telecommunications network by qualified persons during the course of installation,maintenance, or repair of telecommunications equipment or systems.


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Access to electrical equipment shall not be denied by an accumulation of communications wires andcables that prevents removal of panels, including suspended ceiling panels.


Communications circuits and equipment shall be installed in a neat and workmanlike manner. Cablesinstalled exposed on the surface of ceilings and sidewalls shall be supported by the building structure insuch a manner that the cable will not be damaged by normal building use. Such cables shall be securedby hardware, including straps, staples, cable ties, hangers, or similar fittings, designed and installed so asnot to damage the cable. The installation shall also conform to 300.4(D) and 300.11. Nonmetallic cable tiesand other nonmetallic cable accessories used to secure and support cables in other spaces used forenvironmental air (plenums) shall be listed as having low smoke and heat release properties inaccordance with 805.170(C).

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1-D-2015, Commercial Building Telecommunications Infrastructure Standard; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012, ResidentialTelecommunications Infrastructure Standard; ANSI/TIA-1005-A-2012, TelecommunicationsInfrastructure Standard for Industrial Premises; ANSI/TIA-1179-2010, Healthcare FacilityTelecommunications Infrastructure Standard; ANSI/TIA-4966-2014, TelecommunicationsInfrastructure Standard for Educational Facilities; and other ANSI-approved installation standards.


Informational Note No. 3: Paint, plaster, cleaners, abrasives, corrosive residues, or othercontaminants may result in an undetermined alteration of communications wire and cableproperties.


The accessible portion of abandoned communications cables shall be removed. Where cables areidentified for future use with a tag, the tag shall be of sufficient durability to withstand the environmentinvolved.


Installations of communications cables, communications raceways, cable routing assemblies in hollowspaces, vertical shafts, and ventilation or air-handling ducts shall be made so that the possible spread offire or products of combustion will not be substantially increased. Openings around penetrations ofcommunications cables, communications raceways, and cable routing assemblies through fire-resistant-rated walls, partitions, floors, or ceilings shall be firestopped using approved methods to maintain the fireresistance rating.





805.44 Overhead (Aerial) Communications Wires and Cables.

Overhead (aerial) communications wires and cables entering buildings shall comply with 805.44(A) and(B).


Where communications wires and cables and electric light or power conductors are supported by thesame pole or are run parallel to each other in-span, the conditions described in 805.44(A)(1) through805.44(A)(4) shall be met.


Where practicable, the communications wires and cables shall be located below the electric light or powerconductors.


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Communications wires and cables shall not be attached to a cross-arm that carries electric light or powerconductors.

(3) Climbing Space.

The climbing space through communications wires and cables shall comply with the requirements of225.14(D).

(4) Clearance.

Supply service drops and sets of overhead service conductors of 0 to 750 volts running above and parallelto communications service drops shall have a minimum separation of 300 mm (12 in.) at any point in thespan, including the point of and at their attachment to the building, provided that the ungroundedconductors are insulated and that a clearance of not less than 1.0 m (40 in.) is maintained between the twoservices at the pole.

(B) Above Roofs.

Communications wires and cables shall have a vertical clearance of not less than 2.5 m (8 ft) from allpoints of roofs above which they pass.

Exception No. 1: Communications wires and cables shall not be required to have a vertical clearance ofnot less than 2.5 m (8 ft) above auxiliary buildings, such as garages and the like.

Exception No. 2: A reduction in clearance above only the overhanging portion of the roof to not less than450 mm (18 in.) shall be permitted if (a) not more than 1.2 m (4 ft) of communications service-dropconductors pass above the roof overhang and (b) they are terminated at a through- or above-the-roofraceway or approved support.

Exception No. 3: Where the roof has a slope of not less than 100 mm in 300 mm (4 in. in 12 in.), areduction in clearance to not less than 900 mm (3 ft) shall be permitted.

Informational Note: For additional information regarding overhead (aerial) wires and cables, seeANSI/IEEE C2-2012, National Electrical Safety Code, Part 2, Safety Rules for Overhead Lines.

805.47 Underground Communications Wires and Cables Entering Buildings.

Underground communications wires and cables entering buildings shall comply with 805.47(A) and (B).The requirements of 310.10(C) shall not apply to communications wires and cables.

(A) Underground Systems with Electric Light, Power, Class 1, or Non–Power-Limited Fire Alarm CircuitConductors.

Underground communications wires and cables in a raceway, handhole enclosure, or manhole containingelectric light, power, Class 1, or non–power-limited fire alarm circuit conductors shall be in a sectionseparated from such conductors by means of brick, concrete, or tile partitions or by means of a suitablebarrier.

(B) Underground Block Distribution.

Where the entire street circuit is run underground and the circuit within the block is placed so as to be freefrom the likelihood of accidental contact with electric light or power circuits of over 300 volts to ground, theinsulation requirements of 805.50(A) and 805.50(C) shall not apply, insulating supports shall not berequired for the conductors, and bushings shall not be required where the conductors enter the building.

(C) On Mast.

Overhead (aerial) communications cables shall be permitted to be attached to an above-the-roof racewaymast that does not enclose or support conductors of electric light or power circuits.

(D) Between Buildings.

Communications cables extending between buildings or structures, and also the supports or attachmentfixtures, shall be identified and shall have sufficient strength to withstand the loads to which they might besubjected.

Exception: Where a communications cable does not have sufficient strength to be self-supporting, it shallbe attached to a supporting messenger wire that, together with the attachment fixtures or supports, hassufficient strength to withstand the loads to which they might be subjected.


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Unlisted outside plant communications cables shall be permitted to be installed in building spaces otherthan risers, ducts used for environmental air, plenums used for environmental air, and other spaces usedfor environmental air, where the length of the cable within the building, measured from its point ofentrance, does not exceed 15 m (50 ft) and the cable enters the building from the outside and isterminated in an enclosure or on a listed primary protector. The point of entrance shall be permitted to beextended from the penetration of the external wall or floor slab by continuously enclosing the entrancecables in rigid metal conduit (RMC) or intermediate metal conduit (IMC) to the point of emergence.

Informational Note No. 1: Splice cases or terminal boxes, both metallic and plastic types, aretypically used as enclosures for splicing or terminating telephone cables.

Informational Note No. 2: This section limits the length of unlisted outside plant cable to 15 m (50 ft),while 805.90(B) requires that the primary protector be located as close as practicable to the point atwhich the cable enters the building. Therefore, in installations requiring a primary protector, theoutside plant cable may not be permitted to extend 15 m (50 ft) into the building if it is practicable toplace the primary protector closer than 15 m (50 ft) to the point of entrance.


Metal conduit containing communications entrance wire or cable shall be connected by a bondingconductor or grounding electrode conductor to the building grounding electrode system in accordance with805.100(B).

805.50 Circuits Requiring Primary Protectors.

Circuits that require primary protectors as provided in 805.90 shall comply with 805.50(A),805.50(B), and805.50(C).

(A) Insulation, Wires, and Cables.

Communications wires and cables without a metallic shield, running from the last outdoor support to theprimary protector, shall be listed in accordance with 805.173.

(B) On Buildings.

Communications wires and cables in accordance with 805.50(A) shall be separated at least 100 mm (4 in.)from electric light or power conductors not in a raceway or cable or be permanently separated fromconductors of the other systems by a continuous and firmly fixed nonconductor in addition to the insulationon the wires, such as porcelain tubes or flexible tubing. Communications wires and cables in accordancewith 805.50(A) exposed to accidental contact with electric light and power conductors operating at over300 volts to ground and attached to buildings shall be separated from woodwork by being supported onglass, porcelain, or other insulating material.

Exception: Separation from woodwork shall not be required where fuses are omitted as provided for in805.90(A)(1), or where conductors are used to extend circuits to a building from a cable having agrounded metal sheath.

(C) Entering Buildings.

Where a primary protector is installed inside the building, the communications wires and cables shall enterthe building either through a noncombustible, nonabsorbent insulating bushing or through a metalraceway. The insulating bushing shall not be required where the entering communications wires andcables (1) are in metal-sheathed cable, (2) pass through masonry, (3) meet the requirements of 805.50(A)and fuses are omitted as provided in 805.90(A)(1), or (4) meet the requirements of 805.50(A) and are usedto extend circuits to a building from a cable having a grounded metallic sheath. Raceways or bushingsshall slope upward from the outside or, where this cannot be done, drip loops shall be formed in thecommunications wires and cables immediately before they enter the building.

Raceways shall be equipped with an approved service head. More than one communications wire andcable shall be permitted to enter through a single raceway or bushing. Conduits or other metal racewayslocated ahead of the primary protector shall be grounded.

805.53 Separation from Lightning Conductors.

Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between communications wiresand cables on buildings and lightning conductors.

Informational Note: Specific separation distances may be calculated from the sideflash equation inNFPA 780-2017, Standard for the Installation of Lightning Protection Systems.


805.90 Protective Devices.

(A) Application.


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A listed primary protector shall be provided on each circuit run partly or entirely in aerial wire or aerialcable not confined within a block. Also, a listed primary protector shall be provided on each circuit, aerialor underground, located within the block containing the building served so as to be exposed to accidentalcontact with electric light or power conductors operating at over 300 volts to ground. In addition, wherethere exists a lightning exposure, each interbuilding circuit on a premises shall be protected by a listedprimary protector at each end of the interbuilding circuit. Installation of primary protectors shall alsocomply with 110.3(B).

Informational Note No. 1: On a circuit not exposed to accidental contact with power conductors,providing a listed primary protector in accordance with this article helps protect against otherhazards, such as lightning and above-normal voltages induced by fault currents on power circuits inproximity to the communications circuit.

Informational Note No. 2: Interbuilding circuits are considered to have a lightning exposure unlessone or more of the following conditions exist:

(1) Circuits in large metropolitan areas where buildings are close together and sufficiently high tointercept lightning.

(2) Interbuilding cable runs of 42 m (140 ft) or less, directly buried or in underground conduit,where a continuous metallic cable shield or a continuous metal conduit containing the cable isconnected to each building grounding electrode system.

(3) Areas having an average of five or fewer thunderstorm days per year and earth resistivity ofless than 100 ohm-meters. Such areas are found along the Pacific coast.

Informational Note No. 3: For information on lightning protection systems, see NFPA 780-2017,Standard for the Installation of Lightning Protection Systems.

(1) Fuseless Primary Protectors.

Fuseless-type primary protectors shall be permitted under any of the conditions given in (A)(1)(a) through(A)(1)(e).

(a) Where conductors enter a building through a cable with grounded metallic sheath member(s) andwhere the conductors in the cable safely fuse on all currents greater than the current-carrying capacity ofthe primary protector and of the primary protector bonding conductor or grounding electrode conductor

(b) Where insulated conductors in accordance with 805.50(A) are used to extend circuits to a building froma cable with an effectively grounded metallic sheath member(s) and where the conductors in the cable orcable stub, or the connections between the insulated conductors and the plant exposed to accidentalcontact with electric light or power conductors operating at greater than 300 volts to ground, safely fuse onall currents greater than the current-carrying capacity of the primary protector, or the associated insulatedconductors and of the primary protector bonding conductor or grounding electrode conductor

(c) Where insulated conductors in accordance with 805.50(A) or (B) are used to extend circuits to abuilding from other than a cable with metallic sheath member(s), where (1) the primary protector is listedas being suitable for this purpose for application with circuits extending from other than a cable withmetallic sheath members, and (2) the connections of the insulated conductors to the plant exposed toaccidental contact with electric light or power conductors operating at greater than 300 volts to ground orthe conductors of the plant exposed to accidental contact with electric light or power conductors operatingat greater than 300 volts to ground safely fuse on all currents greater than the current-carrying capacity ofthe primary protector, or associated insulated conductors and of the primary protector bonding conductoror grounding electrode conductor

(d) Where insulated conductors in accordance with 805.50(A) are used to extend circuits aerially to abuilding from a buried or underground circuit that is unexposed to accidental contact with electric light orpower conductors operating at greater than 300 volts to ground

(e) Where insulated conductors in accordance with 805.50(A) are used to extend circuits to a building fromcable with an effectively grounded metallic sheath member(s), and where (1) the combination of theprimary protector and insulated conductors is listed as being suitable for this purpose for application withcircuits extending from a cable with an effectively grounded metallic sheath member(s), and (2) theinsulated conductors safely fuse on all currents greater than the current-carrying capacity of the primaryprotector and of the primary protector bonding conductor or grounding electrode conductor

Informational Note: Section 9 of ANSI/IEEE C2-2012, National Electrical Safety Code, provides anexample of methods of protective grounding that can achieve effective grounding ofcommunications cable sheaths for cables from which communications circuits are extended.


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(2) Fused Primary Protectors.

Where the requirements listed under 805.90(A)(1)(a) through (A)(1)(e) are not met, fused-type primaryprotectors shall be used. Fused-type primary protectors shall consist of an arrester connected betweeneach line conductor and ground, a fuse in series with each line conductor, and an appropriate mountingarrangement. Primary protector terminals shall be marked to indicate line, instrument, and ground, asapplicable.

(B) Location.

The primary protector shall be located in, on, or immediately adjacent to the structure or building servedand as close as practicable to the point of entrance.

For purposes of this section, primary protectors located at mobile home service equipment within 9.0 m(30 ft) of the exterior wall of the mobile home it serves, or at a mobile home disconnecting meansconnected to an electrode by a grounding electrode conductor in accordance with 250.32 and locatedwithin 9.0 m (30 ft) of the exterior wall of the mobile home it serves, shall be considered to meet therequirements of this section.

Informational Note: Selecting a primary protector location to achieve the shortest practicableprimary protector bonding conductor or grounding electrode conductor helps limit potentialdifferences between communications circuits and other metallic systems.

(C) Hazardous (Classified) Locations.

The primary protector shall not be located in any hazardous (classified) locations, as defined in 500.5 and505.5, or in the vicinity of easily ignitible material.

Exception: As permitted in 501.150, 502.150, and 503.150.

(D) Secondary Protectors.

Where a secondary protector is installed in series with the indoor communications wire and cable betweenthe primary protector and the equipment, it shall be listed for the purpose in accordance with 805.170(B).

Informational Note: Secondary protectors on circuits exposed to accidental contact with electric lightor power conductors operating at greater than 300 volts to ground are not intended for use withoutprimary protectors.

805.93 Grounding, Bonding, or Interruption of Non–Current-Carrying Metallic Sheath Members ofCommunications Cables.

Communications cables entering the building or terminating on the outside of the building shall complywith 805.93(A) or (B).

(A) Entering Buildings.

In installations where the communications cable enters a building, the metallic sheath members of thecable shall be grounded or bonded as specified in 805.100 or interrupted by an insulating joint orequivalent device. The grounding, bonding, or interruption shall be as close as practicable to the point ofentrance.

(B) Terminating on the Outside of Buildings.

In installations where the communications cable is terminated on the outside of the building, the metallicsheath members of the cable shall be grounded or bonded as specified in 805.100 or interrupted by aninsulating joint or equivalent device. The grounding, bonding, or interruption shall be as close aspracticable to the point of termination of the cable.



The primary protector and the metallic member(s) of the cable sheath shall be bonded or grounded asspecified in 805.100(A) through 805.100(D).


(1) Insulation.


(2) Material.



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(3) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. It shall have acurrent-carrying capacity not less than the grounded metallic sheath member(s) and protectedconductor(s) of the communications cable. The bonding conductor or grounding electrode conductor shallnot be required to exceed 6 AWG.

(4) Length.

The primary protector bonding conductor or grounding electrode conductor shall be as short aspracticable. In one- and two-family dwellings, the primary protector bonding conductor or groundingelectrode conductor shall be as short as practicable, not to exceed 6.0 m (20 ft) in length.


Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximumprimary protector bonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separatecommunications ground rod meeting the minimum dimensional criteria of 805.100(B)(3)(2) shall bedriven, the primary protector shall be connected to the communications ground rod in accordance with805.100(C), and the communications ground rod shall be connected to the power grounding electrodesystem in accordance with 805.100(D).





(B) Electrode.

The bonding conductor or grounding electrode conductor shall be connected in accordance with805.100(B)(1), 805.100(B)(2), or 805.100(B)(3).



Informational Note: Informational Note Figure 805.100(B)(1) illustrates the connection of thebonding conductor in buildings or structures equipped with an intersystem bonding termination or aterminal block providing access to the building grounding means.

Figure Informational Note Figure 805.100(B)(1) Illustration of a Bonding Conductor in aCommunications Installation.


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If an intersystem bonding termination is established, 250.94(A) shall apply.

If the building or structure served has no intersystem bonding termination, the bonding conductor orgrounding electrode conductor shall be connected to the nearest accessible location on one of thefollowing:








A bonding device intended to provide a termination point for the bonding conductor (intersystem bonding)shall not interfere with the opening of an equipment enclosure. A bonding device shall be mounted onnonremovable parts. A bonding device shall not be mounted on a door or cover even if the door or cover isnonremovable.

Informational Note: Informational Note Figure 805.100(B)(2) illustrates the connection of thebonding conductor in buildings or structures not equipped with an intersystem bonding terminationor terminal block providing access to the building grounding means.

Figure Informational Note Figure 805.100(B)(2) Illustration of a Grounding Electrode Conductor ina Communications Installation.

For purposes of this section, the mobile home service equipment or the mobile home disconnectingmeans, as described in 805.90(B), shall be considered accessible.


If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 805.100(B)(2), the grounding electrode conductor shall be connected to either of thefollowing:

(1) To any one of the individual grounding electrodes described in 250.52(A)(1), (A)(2), (A)(3), or (A)(4).

(2) If the building or structure served has no intersystem bonding termination or has no grounding means,as described in 805.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes describedin 250.52(A)(7) and (A)(8) or to a ground rod or pipe not less than 1.5 m (5 ft) in length and 12.7 mm(1⁄2 in.) in diameter, driven, where practicable, into permanently damp earth and separated fromlightning protection system conductors as covered in 805.53 and at least 1.8 m (6 ft) from electrodesof other systems. Steam, hot water pipes, or lightning protection system conductors shall not beemployed as electrodes for protectors and grounded metallic members.




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A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between thecommunications grounding electrode and power grounding electrode system at the building or structureserved where separate electrodes are used.

Exception: At mobile homes as covered in 805.106.



805.106 Primary Protector Grounding and Bonding at Mobile Homes.

(A) Grounding.

Grounding shall comply with 805.106(A)(1) and 805.106(A)(2).

(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall ofthe mobile home it serves, the primary protector grounding terminal shall be connected to a groundingelectrode conductor or grounding electrode in accordance with 805.100(B)(3).

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 andlocated within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the primary protectorgrounding terminal shall be connected to a grounding electrode in accordance with 805.100(B)(3).

(B) Bonding.

The primary protector grounding terminal or grounding electrode shall be connected to the metal frame oravailable grounding terminal of the mobile home with a copper conductor not smaller than 12 AWG undereither of the following conditions:

(1) Where there is no mobile home service equipment or disconnecting means as in 805.106(A)

(2) Where the mobile home is supplied by cord and plug


805.110 Raceways, Cable Routing Assemblies, and Cable Trays for Communications Wires and Cables.


Communications wires and cables shall be permitted to be installed in any raceway that complies witheither 805.110(A)(1) or (A)(2).


Communications wires and cables shall be permitted to be installed in any raceway included in Chapter 3.The raceways shall be installed in accordance with the requirements of Chapter 3.


Communications wires and cables shall be permitted to be installed in plenum communications raceways,riser communications raceways, and general-purpose communications raceways selected in accordancewith Table 805.154(b) , listed in accordance with 805.182, and installed in accordance with 805.113 and362.24 through 362.56, where the requirements applicable to electrical nonmetallic tubing (ENT) apply.

(3) Innerduct for Communications Wires and Cables.

Listed plenum communications raceways, listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805.154(b) shall be permitted to beinstalled as innerduct in any type of listed raceway permitted in Chapter 3.

(B) Raceway Fill for Communications Wires and Cables.

The raceway fill requirements of Chapters 3 and 9 shall not apply to communications wires and cables.


Communications wires and cables shall be permitted to be installed in plenum cable routing assemblies,riser cable routing assemblies, and general-purpose cable routing assemblies selected in accordance withTable 805.154(c) , listed in accordance with 805.182, and installed in accordance with 805.110(C)(1) and(C)(2) and 805.113.

(1) Horizontal Support.

Cable routing assemblies shall be supported where run horizontally at intervals not to exceed 900 mm(3 ft) and at each end or joint, unless listed for other support intervals. In no case shall the distancebetween supports exceed 3 m (10 ft).


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(2) Vertical Support.

Vertical runs of cable routing assemblies shall be supported at intervals not exceeding 1.2 m (4 ft), unlesslisted for other support intervals, and shall not have more than one joint between supports.

(D) Cable Trays.

Communications cables and communications raceways shall be permitted to be installed in metal or listednonmetallic cable tray systems. Ladder cable trays shall be permitted to support cable routing assemblies.

805.113 Installation of Communications Wires, Cables and Raceways, and Cable Routing Assemblies.

Installation of communications wires, cables and raceways, and cable routing assemblies shall complywith 805.113(A) through (L). Installation of raceways and cable routing assemblies shall also comply with805.110.

(A) Listing.

Communications wires, communications cables, communications raceways, and cable routing assembliesinstalled in buildings shall be listed.

Exception: Communications cables that are installed in compliance with 805.48 shall not be required tobe listed.

(B) Ducts Specifically Fabricated for Environmental Air.

The following wires and cables shall be permitted in ducts specifically fabricated for environmental air asdescribed in 300.22(B) if they are directly associated with the air distribution system:

(1) Up to 1.22 m (4 ft) of Type CMP cable

(2) Types CMP, CMR, CMG, CM, and CMX cables and communications wires installed in raceways thatare installed in compliance with 300.22(B)

Informational Note: For information on fire protection of wiring installed in fabricated ducts, seeNFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems.


The following wires, cables, raceways, and cable routing assemblies shall be permitted in other spacesused for environmental air as described in 300.22(C):

(1) Type CMP cables

(2) Plenum communications raceways

(3) Plenum cable routing assemblies

(4) Type CMP cables installed in plenum communications raceways

(5) Type CMP cables installed in plenum cable routing assemblies

(6) Type CMP cables and plenum communications raceways supported by open metal cable tray systems

(7) Types CMP, CMR, CMG, CM, and CMX cables and communications wires installed in raceways thatare installed in compliance with 300.22(C)

(8) Types CMP, CMR, CMG, CM, and CMX cables, plenum communications raceways, risercommunications raceways, and general-purpose communications raceways supported by solidbottom metal cable trays with solid metal covers in other spaces used for environmental air (plenums)as described in 300.22(C)

(9) Types CMP, CMR, CMG, CM, and CMX cables installed in plenum communications raceways, risercommunications raceways, and general-purpose communications raceways supported by solidbottom metal cable trays with solid metal covers in other spaces used for environmental air (plenums)as described in 300.22(C)



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(D) Risers — Cables, Raceways, and Cable Routing Assemblies in Vertical Runs.

The following cables, raceways, and cable routing assemblies shall be permitted in vertical runspenetrating one or more floors and in vertical runs in a shaft:

(1) Types CMP and CMR cables

(2) Plenum and riser communications raceways

(3) Plenum and riser cable routing assemblies

(4) Types CMP and CMR cables installed in:

a. Plenum communications raceways

b. Riser communications raceways

c. Plenum cable routing assemblies

d. Riser cable routing assemblies

Informational Note: See 805.26 for firestop requirements for floor penetrations.

(E) Risers — Cables and Innerducts in Metal Raceways.

The following cables and innerducts shall be permitted in metal raceways in a riser having firestops ateach floor:

(1) Types CMP, CMR, CMG, CM, and CMX cables

(2) Plenum, riser, and general-purpose communications raceways

(3) Types CMP, CMR, CMG, CM, and CMX cables installed in:

a. Plenum communications raceways (innerduct)

b. Riser communications raceways (innerduct)

c. General-purpose communications raceways (innerduct)


(F) Risers — Cables, Raceways, and Cable Routing Assemblies in Fireproof Shafts.

The following cables, raceways, and cable routing assemblies shall be permitted to be installed in fireproofriser shafts having firestops at each floor:



(3) Plenum, riser, and general-purpose cable routing assemblies

(4) Types CMP, CMR, CMG, and CM cables installed in:



c. General-purpose communications raceways

d. Plenum cable routing assemblies

e. Riser cable routing assemblies

f. General-purpose cable routing assemblies



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(G) Risers — One- and Two-Family Dwellings.

The following cables, raceways, and cable routing assemblies shall be permitted in one- and two-familydwellings:

(1) Types CMP, CMR, CMG, and CM cables

(2) Type CMX cables less than 6 mm (0.25 in.) in diameter










(H) Cable Trays.

The following wires, cables, and raceways shall be permitted to be supported by cable trays:



(3) Communications wires and Types CMP, CMR, CMG, and CM cables installed in:




(I) Distributing Frames and Cross-Connect Arrays.

The following wires, cables, raceways, and cable routing assemblies shall be permitted to be installed indistributing frames and cross-connect arrays:

(1) Types CMP, CMR, CMG, and CM cables and communications wires











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(J) Other Building Locations.

The following wires, cables, raceways, and cable routing assemblies shall be permitted to be installed inbuilding locations other than the locations covered in 805.113(B) through (I):


(2) A maximum of 3 m (10 ft) of exposed Type CMX cable in nonconcealed spaces



(5) Communications wires and Types CMP, CMR, CMG, and CM cables installed in the following:




(6) Types CMP, CMR, CMG, and CM cables installed in the following:

a. Plenum cable routing assemblies

b. Riser cable routing assemblies

c. General-purpose cable routing assemblies

(7) Communications wires and Types CMP, CMR, CMG, CM, and CMX cables installed in racewaysrecognized in Chapter 3

(8) Type CMUC under-carpet communications wires and cables installed under carpet, modular flooring,and planks

(K) Multifamily Dwellings.

The following cables, raceways, and cable routing assemblies shall be permitted to be installed inmultifamily dwellings in locations other than the locations covered in 805.113(B) through (G):


(2) Type CMX cables less than 6 mm (0.25 in.) in diameter in nonconcealed spaces














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(L) One- and Two-Family Dwellings.

The following wires, cables, raceways, and cable routing assemblies shall be permitted to be installed inone- and two-family dwellings in locations other than the locations covered in 805.113(B) through (F):















(9) Hybrid power and communications cable listed in accordance with 805.179(J)

805.133 Installation of Communications Wires, Cables, and Equipment.

Communications wires and cables from the protector to the equipment or, where no protector is required,communications wires and cables attached to the outside or inside of the building shall comply with805.133(A) and 805.133(B)

(A) Separation from Other Conductors.


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(1) In Raceways, Cable Trays, Boxes, Cables, Enclosures, and Cable Routing Assemblies.

(a) Other Circuits. Communications cables shall be permitted in the same raceway, cable tray, box,enclosure, or cable routing assembly with cables of any of the following:

(1) Class 2 and Class 3 remote-control, signaling, and power-limited circuits in compliance with Article645 or Parts I and III of Article 725

(2) Power-limited fire alarm systems in compliance with Parts I and III of Article 760

(3) Nonconductive and conductive optical fiber cables in compliance with Parts I and V of Article 770

(4) Community antenna television and radio distribution systems in compliance with Parts I and V ofArticle 820

(5) Low-power network-powered broadband communications circuits in compliance with Parts I and V ofArticle 830

(b) Class 2 and Class 3 Circuits. Class 1 circuits shall not be run in the same cable with communicationscircuits. Class 2 and Class 3 circuit conductors shall be permitted in the same listed communications cablewith communications circuits.

(c) Electric Light, Power, Class 1, Non–Power-Limited Fire Alarm, and Medium-Power Network-PoweredBroadband Communications Circuits in Raceways, Compartments, and Boxes. Communicationsconductors shall not be placed in any raceway, compartment, outlet box, junction box, or similar fitting withconductors of electric light, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communications circuits.

Exception No. 1: Section 805.133(A)(1)(c) shall not apply if all of the conductors of electric light, power,Class 1, non–power-limited fire alarm, and medium-power network-powered broadband communicationscircuits are separated from all of the conductors of communications circuits by a permanent barrier orlisted divider.

Exception No. 2: Power conductors in outlet boxes, junction boxes, or similar fittings or compartmentswhere such conductors are introduced solely for power supply to communications equipment. The powercircuit conductors shall be routed within the enclosure to maintain a minimum of 6 mm (1⁄4 in.) separationfrom the communications circuit conductors.

Exception No. 3: As permitted by 620.36.

(2) Other Applications.

Communications wires and cables shall be separated at least 50 mm (2 in.) from conductors of any electriclight, power, Class 1, non–power-limited fire alarm, or medium-power network-powered broadbandcommunications circuits.

Exception No. 1: Section 805.133(A)(2) shall not apply where either (1) all of the conductors of theelectric light, power, Class 1, non–power-limited fire alarm, and medium-power network-poweredbroadband communications circuits are in a raceway or in metal-sheathed, metal-clad, nonmetallic-sheathed, Type AC, or Type UF cables, or (2) all of the conductors of communications circuits areencased in raceway.

Exception No. 2: Section 805.133(A)(2) shall not apply where the communications wires and cables arepermanently separated from the conductors of electric light, power, Class 1, non–power-limited firealarm, and medium-power network-powered broadband communications circuits by a continuous andfirmly fixed nonconductor, such as porcelain tubes or flexible tubing, in addition to the insulation on thewire.

(B) Support of Communications Wires and Cables.

Raceways shall be used for their intended purpose. Communications wires and cables shall not bestrapped, taped, or attached by any means to the exterior of any raceway as a means of support.

Exception: Overhead (aerial) spans of communications wires and cables shall be permitted to beattached to the exterior of a raceway-type mast intended for the attachment and support of such wiresand cables.


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805.154 Applications of Listed Communications Wires, Cables, and Raceways, and Listed Cable RoutingAssemblies.


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Permitted and nonpermitted applications of listed communications wires, cables, and raceways, and listedcable routing assemblies, shall be in accordance with one of the following:

(1) Listed communications wires and cables as indicated in Table 805.154(a)

(2) Listed communications raceways as indicated in Table 805.154(b)

(3) Listed cable routing assemblies as indicated in Table 805.154(c)

The permitted applications shall be subject to the installation requirements of 805.110 and 805.113. Thesubstitutions for communications cables listed in Table 805.154(d) and illustrated in Figure 805.154 shallbe permitted.

Table 805.154(a) Applications of Listed Communications Wires and Cables in Buildings

Applications

Wire and Cable Type

CMP CMRCMGCM

CMX CMUC

Hybrid Powerand

CommunicationsCables

CommunicationsWires

In ductsspecificallyfabricated forenvironmentalair asdescribed in300.22(B)

In fabricatedducts

Y* N N N N N N

In metalraceway thatcomplies with300.22(B)

Y* Y* Y* Y* N N Y*

In otherspaces usedforenvironmentalair (plenums)as describedin 300.22(C)

In other spacesused forenvironmentalair

Y* N N N N N N

In metalraceway thatcomplies with300.22(C)

Y* Y* Y* Y* N N Y*

In plenumcommunicationsraceways

Y* N N N N N N

In plenum cableroutingassemblies

Y* N N N N N N

Supported byopen metalcable trays

Y* N N N N N N

Supported bysolid bottommetal cabletrays with solidmetal covers

Y* Y* Y* Y* N N N

In risers

In vertical runs Y* Y* N N N N N

In metalraceways

Y* Y* Y* Y* N N N

In fireproofshafts

Y* Y* Y* Y* N N N


Y* Y* N N N N N


Y* Y* N N N N N

In risercommunicationsraceways

Y* Y* N N N N N


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Applications

Wire and Cable Type

CMP CMRCMGCM

CMX CMUC

Hybrid Powerand


CommunicationsWires

In riser cableroutingassemblies

Y* Y* N N N N N

In one- and two-family dwellings

Y* Y* Y* Y* N Y* N

Withinbuildings inother than air-handlingspaces andrisers

General Y* Y* Y* Y* N N N


Y* Y* Y* Y* Y* Y* N

In multifamilydwellings

Y* Y* Y* Y* Y* N N

In nonconcealedspaces

Y* Y* Y* Y* Y* N N

Supported bycable trays

Y* Y* Y* N N N N

Under carpet,modularflooring, andplanks

N N N N Y* N N

In distributingframes andcross-connectarrays

Y* Y* Y* N N N Y*

In any racewayrecognized inChapter 3

Y* Y* Y* Y* N N Y*


Y* Y* Y* N N N Y*


Y* Y* Y* N N N Y*


Y* Y* Y* N N N Y*


Y* Y* Y* N N N Y*

In general-purposecommunicationsraceways

Y* Y* Y* N N N Y*

In general-purpose cableroutingassemblies

Y* Y* Y* N N N Y*

Note: An “N” in the table indicates that the cable type shall not be permitted to be installed in theapplication. A “Y*” indicates that the cable type shall be permitted to be installed in the application subjectto the limitations described in 805.113.

Informational Note No. 1: Part V of Article 800 covers installation methods within buildings. This tablecovers the applications of listed communications wires, cables, and raceways in buildings. See thedefinition of Point of Entrance in 805.2.

Informational Note No. 2: For information on the restrictions to the installation of communications cables infabricated ducts, see 805.113(B).


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Table 805.154(b) Applications of Listed Communications Raceways in Buildings

Listed Communications

Raceway Type

Applications Plenum RiserGeneral-Purpose

In ducts specifically fabricated forenvironmental air as described in300.22(B)

In fabricated ducts N N N

In metal raceway that complieswith 300.22(B)

N N N

In other spaces used forenvironmental air (plenums) asdescribed in 300.22(C)

In other spaces used forenvironmental air

Y* N N

In metal raceway that complieswith 300.22(C)

Y* Y* Y*

In plenum cable routingassemblies

N N N

Supported by open metal cabletrays

Y* N N

Supported by solid bottom metalcable trays with solid metalcovers

Y* Y* Y*

In risers

In vertical runs Y* Y* N

In metal raceways Y* Y* Y*

In fireproof shafts Y* Y* Y*


N N N

In riser cable routing assemblies N N N

In one- and two-family dwellings Y* Y* Y*

Within buildings in other than air-handling spaces and risers

General Y* Y* Y*


In multifamily dwellings Y* Y* Y*

In nonconcealed spaces Y* Y* Y*

Supported by cable trays Y* Y* Y*

Under carpet, modular flooring,and planks

N N N

In distributing frames and cross-connect arrays

Y* Y* Y*

In any raceway recognized inChapter 3

Y* Y* Y*


N N N


In general-purpose cable routingassemblies

N N N

Note: An “N” in the table indicates that the communications raceway type shall not be permitted to beinstalled in the application. A “Y*” indicates that the communications raceway type shall be permitted to beinstalled in the application, subject to the limitations described in 805.110 and 805.113.

Table 805.154(c) Applications of Listed Cable Routing Assemblies in Buildings

Listed Cable Routing

Assembly Type


In ducts specifically fabricated for In fabricated ducts N N N


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Listed Cable Routing

Assembly Type


environmental air as described in300.22(B)


N N N



Y* N N


N N N

In plenum communicationsraceways

N N N


Y* N N

Supported by solid bottom metalcable trays with solid metal covers

N N N

In risers


In metal raceways N N N



N N N

In riser communications raceways N N N



General Y* Y* Y*






N N N


Y* Y* Y*


N N N


N N N


In general-purposecommunications raceways

N N N

Note: An “N” in the table indicates that the cable routing assembly type shall not be permitted to beinstalled in the application. A “Y*” indicates that the cable routing assembly type shall be permitted to beinstalled in the application subject to the limitations described in 805.113.

Table 805.154(d) Cable Substitutions

Cable Type Permitted Substitutions

CMR CMP

CMG, CM CMP, CMR

CMX CMP, CMR, CMG, CM

Figure 805.154 Cable Substitution Hierarchy.


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805.156 Dwelling Unit Communications Outlet.

For new construction, a minimum of one communications outlet shall be installed within the dwelling in areadily accessible area and cabled to the service provider demarcation point.


805.170 Equipment.

Communications equipment shall be listed as being suitable for electrical connection to a communicationsnetwork.

Informational Note No. 1: One way to determine applicable requirements is to refer toANSI/UL 60950-1-2014, Standard for Safety of Information Technology Equipment;ANSI/UL 1863-2012, Standard for Safety Communications Circuit Accessories; orANSI/UL 62368-1-2014, Audio/Video, Information and Communication Technology Equipment —Part 1: Safety Requirements.

Informational Note No. 2: Additional information regarding voltages, currents, and power allowed oncommunications circuits can be found in ANSI/ATIS 0600337-2016, Requirements for MaximumVoltage, Current, and Power Levels Used in Communications Transport Circuits.

(A) Primary Protectors.

The primary protector shall consist of an arrester connected between each line conductor and ground in anappropriate mounting. Primary protector terminals shall be marked to indicate line and ground asapplicable.

Informational Note: One way to determine applicable requirements for a listed primary protector isto refer to ANSI/UL 497-2013, Standard for Protectors for Paired Conductor CommunicationsCircuits.

(B) Secondary Protectors.

The secondary protector shall be listed as suitable to provide means to safely limit currents to less than thecurrent-carrying capacity of listed indoor communications wire and cable, listed telephone set line cords,and listed communications terminal equipment having ports for external wire line communications circuits.Any overvoltage protection, arresters, or grounding connection shall be connected on the equipmentterminals side of the secondary protector current-limiting means.

Informational Note: One way to determine applicable requirements for a listed secondary protectoris to refer to ANSI/UL 497A-2012, Standard for Secondary Protectors for Communications Circuits.

(C) Plenum Grade Cable Ties.

Cable ties intended for use in other space used for environmental air (plenums) shall be listed as havinglow smoke and heat release properties.

Informational Note: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning andVentilating Systems, and ANSI/UL 2043-2013, Standard for Safety Fire Test for Heat and VisibleSmoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces, forinformation on listing discrete products as having low smoke and heat release properties.


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805.173 Drop Wire and Cable.

Communications wires and cables without a metallic shield, running from the last outdoor support to theprimary protector, shall be listed as being suitable for the purpose and shall have current-carrying capacityas specified in 805.90(A)(1)(b) or (A)(1)(c).

805.179 Communications Wires and Cables.

Communications wires and cables shall be listed in accordance with 805.179(A) through (J) and markedin accordance with Table 805.179. Conductors in communications cables, other than in a coaxial cable,shall be copper.

Communications wires and cables shall have a voltage rating of not less than 300 volts. The insulation forthe individual conductors, other than the outer conductor of a coaxial cable, shall be rated for 300 voltsminimum. The cable voltage rating shall not be marked on the cable or on the under-carpetcommunications wire. Communications wires and cables shall have a temperature rating of not less than60°C (140°F). The temperature rating shall be marked on the jacket of communications cables that have atemperature rating exceeding 60°C (140°F).

Exception: Voltage markings shall be permitted where the cable has multiple listings and voltagemarking is required for one or more of the listings.

Informational Note: Voltage markings on cables may be misinterpreted to suggest that the cablesmay be suitable for Class 1, electric light, and power applications.

Table 805.179 Cable Markings

Cable Marking Type

CMP Communications plenum cable

CMR Communications riser cable

CMG Communications general-purpose cable

CM Communications general-purpose cable

CMX Communications cable, limited use

CMUC Under-carpet communications wire and cable

Informational Note: Cable types are listed in descending order of fire performance.

(A) Type CMP.

Type CMP communications plenum cables shall be listed as being suitable for use in ducts, plenums, andother spaces used for environmental air and shall also be listed as having adequate fire-resistant and lowsmoke-producing characteristics.

Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less, an averageoptical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less whentested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke ofWires and Cables for Use in Air-Handling Spaces.

(B) Type CMR.

Type CMR communications riser cables shall be listed as being suitable for use in a vertical run in a shaftor from floor to floor and shall also be listed as having fire-resistant characteristics capable of preventingthe carrying of fire from floor to floor.

Informational Note: One method of defining fire-resistant characteristics capable of preventing thecarrying of fire from floor to floor is that the cables pass the requirements of ANSI/UL 1666-2011,Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cable Installed Verticallyin Shafts.

(C) Type CMG.

Type CMG general-purpose communications cables shall be listed as being suitable for general-purposecommunications use, with the exception of risers and plenums, and shall also be listed as being resistantto the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is for the damage (charlength) not to exceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables inCable Trays,” as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.


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(D) Type CM.

Type CM communications cables shall be listed as being suitable for general-purpose communicationsuse, with the exception of risers and plenums, and shall also be listed as being resistant to the spread offire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do notspread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-ReleaseTest for Electrical and Optical-Fiber Cables. The smoke measurements in the test method are notapplicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not toexceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables in Cable Trays,”as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.

(E) Type CMX.

Type CMX limited-use communications cables shall be listed as being suitable for use in dwellings and foruse in raceway and shall also be listed as being resistant to flame spread.

Informational Note: One method of determining that cable is resistant to flame spread is by testingthe cable to the VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, Reference Standard forElectrical Wires, Cables and Flexible Cords.

(F) Type CMUC Undercarpet Wires and Cables.

Type CMUC undercarpet communications wires and cables shall be listed as being suitable forundercarpet use and shall also be listed as being resistant to flame spread.


(G) Circuit Integrity (CI) Cable or Electrical Circuit Protective System.

Cables that are used for survivability of critical circuits under fire conditions shall be listed and meet either805.179(G)(1) or 805.179(G)(2)as follows:

Informational Note: The listing organization provides information for circuit integrity (CI) cable andelectrical circuit protective systems, including installation requirements required to maintain the firerating.

(1) Circuit Integrity (CI) Cables.

Circuit integrity (CI) cables specified in 805.179(A) through (D), and used for survivability of critical circuits,shall have an additional classification using the suffix “CI.” In order to maintain its listed fire rating, circuitintegrity (CI) cable shall only be installed in free air.

Informational Note: One method of defining circuit integrity (CI) cable is by establishing a minimum2-hour fire resistance rating for the cable when tested in accordance with ANSI/UL 2196-2006,Standard for Tests of Fire-Resistive Cable.

(2) Fire-Resistive Cables.

Cables specified in 805.179(A) through (D) and 805.179(G)(1), that are part of an electrical circuitprotective system, shall be fire-resistive cable identified with the protective system number on the product,or on the smallest unit container in which the product is packaged, and shall be installed in accordancewith the listing of the protective system.

Informational Note No. 1: One method of defining an electrical circuit protective system is byestablishing a minimum 2-hour fire resistance rating for the system when tested in accordance withUL Subject 1724, Outline of Investigation for Fire Tests for Electrical Circuit Protective Systems.

Informational Note No. 2: The listing organization provides information for electrical circuit protectivesystems (FHIT), including installation requirements for maintaining the fire rating.


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(H) Types CMP-LP, CMR-LP, CMG-LP, and CM-LP Limited Power (LP) Cables.

Types CMP-LP, CMR-LP, CMG-LP, and CM-LP communications limited power cables shall be listed assuitable for carrying power and data up to a specified current limit for each conductor without exceedingthe temperature rating of the cable where the cable is installed in cable bundles in free air or installedwithin a raceway, cable tray, or cable routing assembly. The cables shall be marked with the suffix“-LP(XXA)”, where XX designates the current limit in amperes per conductor.

Informational Note: An example of the marking on a communications cable with an LP rating is"CMP-LP (0.6A)( 75°C) 23AWG 4 pair," which indicates that it is a 4-pair plenum cable with 23 AWGconductors, a temperature rating of 75°C, and a current limit of 0.6 ampere.

(I) Communications Wires.

Communications wires, such as distributing frame wire and jumper wire, shall be listed as being resistantto the spread of fire.


Another method of defining resistant to the spread of fire is for the damage (char length) not toexceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test— Cables in Cable Trays,”as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.

(J) Hybrid Power and Communications Cables.

Listed hybrid power and communications cables shall be permitted where the power cable is a listed TypeNM or NM-B, conforming to Part III of Article 334, and the communications cable is a listed Type CM, thejackets on the listed NM or NM-B, and listed CM cables are rated for 600 volts minimum, and the hybridcable is listed as being resistant to the spread of fire.




Where bonding or grounding is required, devices used to connect a shield, a sheath, or non–current-carrying metallic members of a cable to a bonding conductor or grounding electrode conductor shall belisted or be part of listed equipment.

805.182 Cable Routing Assemblies and Communications Raceways.


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Cable routing assemblies and communications raceways shall be listed in accordance with 805.182(A)through (C). Cable routing assemblies shall be marked in accordance with Table 805.182(a).Communications raceways shall be marked in accordance with Table 805.182(b).

Informational Note: For information on listing requirements for both communications raceways andcable routing assemblies, see ANSI/UL 2024-5-2015, Cable Routing Assemblies andCommunications Raceways.

Table 805.182(a) Cable Routing Assembly Markings

Type Marking

Plenum Cable Routing Assembly Plenum Cable Routing Assembly

Riser Cable Routing Assembly Riser Cable Routing Assembly

General-Purpose Cable Routing Assembly General-Purpose Cable Routing Assembly

Table 805.182(b) Communications Raceway Markings

Type Marking

Plenum Communications Raceway Plenum Communications Raceway

Riser Communications Raceway Riser Communications Raceway

General-Purpose Communications Raceway General-Purpose Communications Raceway

(A) Plenum Cable Routing Assemblies and Plenum Communications Raceways.

Plenum cable routing assemblies and plenum communications raceways shall be listed as havingadequate fire-resistant and low-smoke-producing characteristics.

Informational Note No. 1: One method of defining cable routing assemblies and communicationsraceways that have adequate fire-resistant and low-smoke-producing characteristics is that theyexhibit a maximum flame spread index of 25 and a maximum smoke developed index of 50 whentested in accordance with ASTM E84-17a, Standard Test Method for Surface BurningCharacteristics of Building Materials, or ANSI/UL 723-2013, Standard Test Method for SurfaceBurning Characteristics of Building Materials.

Informational Note No. 2: Another method of defining communications raceways that haveadequate fire-resistant and low-smoke-producing characteristics is that they exhibit a maximumpeak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximumflame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015,Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-HandlingSpaces.

Informational Note No. 3: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning andVentilating Systems, for information on materials exposed to the airflow in ceiling cavity and raisedfloor plenums.

(B) Riser Cable Routing Assemblies and Riser Communications Raceways.

Riser cable routing assemblies and riser communications raceways shall be listed as having adequate fire-resistant characteristics capable of preventing the carrying of fire from floor to floor.

Informational Note: One method of defining fire-resistant characteristics capable of preventing thecarrying of fire from floor to floor is that the cable routing assemblies and communications racewayspass the requirements of ANSI/UL 1666-2011, Standard Test for Flame Propagation Height ofElectrical and Optical-Fiber Cable Installed Vertically in Shafts.

(C) General-Purpose Cable Routing Assemblies and General-Purpose Communications Raceways.

General-purpose cable routing assemblies and general-purpose communications raceways shall be listedas being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cable routingassemblies and communications raceways do not spread fire to the top of the tray in the “UL FlameExposure, Vertical Flame Tray Test” in ANSI/UL 1685-2011, Standard for Safety for Vertical-TrayFire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables.

Article 810 Radio and Television Equipment

Part I. General


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810.1 Scope.

This article covers antenna systems for radio and television receiving equipment, amateur and citizenband radio transmitting and receiving equipment, and certain features of transmitter safety. This articlecovers antennas such as wire-strung type, multi-element, vertical rod, flat, or parabolic and also covers thewiring and cabling that connect them to equipment. This article does not cover equipment and antennasused for coupling carrier current to power line conductors.

810.2 Definitions.

For definitions applicable to this article, see Part I of Article 100.


Wiring from the source of power to and between devices connected to the interior wiring system shallcomply with Chapters 1 through 4 other than as modified by Parts I and II of Article 640. Wiring for audiosignal processing, amplification, and reproduction equipment shall comply with Article 640. Coaxial cablesthat connect antennas to equipment shall comply with Article 820.

810.4 Community Television Antenna.

The antenna shall comply with this article. The distribution system shall comply with Article 820.

810.5 Radio Noise Suppressors.

Radio interference eliminators, interference capacitors, or noise suppressors connected to power-supplyleads shall be of a listed type. They shall not be exposed to physical damage.

810.6 Antenna Lead-In Protectors.

Where an antenna lead-in surge protector is installed, it shall be listed as being suitable for limiting surgeson the cable that connects the antenna to the receiver/transmitter electronics and shall be connectedbetween the conductors and the grounded shield or other ground connection. The antenna lead-inprotector shall be grounded using a bonding conductor or grounding electrode conductor installed inaccordance with 810.21(F).

Informational Note: For requirements covering protectors for antenna lead-in conductors, refer toUL 497E, Outline of Investigation for Protectors for Antenna Lead-In Conductors.


Where bonding or grounding is required, devices used to connect a shield, a sheath, non–current-carryingmetallic members of a cable, or metal parts of equipment or antennas to a bonding conductor or groundingelectrode conductor shall be listed or be part of listed equipment.

Part II. Receiving Equipment — Antenna Systems

810.11 Material.

Antennas and lead-in conductors shall be of hard-drawn copper, bronze, aluminum alloy, copper-cladsteel, or other high-strength, corrosion-resistant material.

Exception: Soft-drawn or medium-drawn copper shall be permitted for lead-in conductors where themaximum span between points of support is less than 11 m (35 ft).

810.12 Supports.

Outdoor antennas and lead-in conductors shall be securely supported. The antennas or lead-in conductorsshall not be attached to the electric service mast. They shall not be attached to poles or similar structurescarrying open electric light or power wires or trolley wires of over 250 volts between conductors. Insulatorssupporting the antenna conductors shall have sufficient mechanical strength to safely support theconductors. Lead-in conductors shall be securely attached to the antennas.

810.13 Avoidance of Contacts with Conductors of Other Systems.

Outdoor antennas and lead-in conductors from an antenna to a building shall not cross over openconductors of electric light or power circuits and shall be kept well away from all such circuits so as toavoid the possibility of accidental contact. Where proximity to open electric light or power serviceconductors of less than 250 volts between conductors cannot be avoided, the installation shall be such asto provide a clearance of at least 600 mm (2 ft).

Where practicable, antenna conductors shall be installed so as not to cross under open electric light orpower conductors.

810.14 Splices.

Splices and joints in antenna spans shall be made mechanically secure with approved splicing devices orby such other means as will not appreciably weaken the conductors.


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810.15 Grounding.

Masts and metal structures supporting antennas shall be grounded in accordance with 810.21, unless theantenna and its related supporting mast or structure are within a zone of protection defined by a 46 m(150 ft) radius rolling sphere.

Informational Note: See 4.8.3.1 of NFPA 780-2017, Standard for the Installation of LightningProtection Systems, for the application of the term rolling sphere.

810.16 Size of Wire-Strung Antenna — Receiving Station.

(A) Size of Antenna Conductors.

Outdoor antenna conductors for receiving stations shall be of a size not less than given in Table 810.16(A).

Table 810.16(A) Size of Receiving Station Outdoor Antenna Conductors

Material

Minimum Size of Conductors (AWG) Where MaximumOpen Span Length Is

Less Than 11 m(35 ft)

11 m to 45 m (35 ft to150 ft)

Over 45 m(150 ft)

Aluminum alloy, hard-drawn copper 19 14 12

Copper-clad steel, bronze, or other high-strength material

20 17 14

(B) Self-Supporting Antennas.

Outdoor antennas, such as vertical rods and flat, parabolic, or dipole structures, shall be of corrosion-resistant materials and of strength suitable to withstand ice and wind loading conditions and shall belocated well away from overhead conductors of electric light and power circuits of over 150 volts to ground,so as to avoid the possibility of the antenna or structure falling into or making accidental contact with suchcircuits.

810.17 Size of Lead-in — Receiving Station.

Lead-in conductors from outside antennas for receiving stations shall, for various maximum open spanlengths, be of such size as to have a tensile strength at least as great as that of the conductors forantennas as specified in 810.16. Where the lead-in consists of two or more conductors that are twistedtogether, are enclosed in the same covering, or are concentric, the conductor size shall, for variousmaximum open span lengths, be such that the tensile strength of the combination is at least as great asthat of the conductors for antennas as specified in 810.16.

810.18 Clearances — Receiving Stations.

(A) Outside of Buildings.

Lead-in conductors attached to buildings shall be installed so that they cannot swing closer than 600 mm(2 ft) to the conductors of circuits of 250 volts or less between conductors, or 3.0 m (10 ft) to theconductors of circuits of over 250 volts between conductors, except that in the case of circuits not over150 volts between conductors, where all conductors involved are supported so as to ensure permanentseparation, the clearance shall be permitted to be reduced but shall not be less than 100 mm (4 in.). Theclearance between lead-in conductors and any conductor forming a part of a lightning protection systemshall not be less than 1.8 m (6 ft). Underground conductors shall be separated at least 300 mm (12 in.)from conductors of any light or power circuits or Class 1 circuits.

Exception: Where the electric light or power conductors, Class 1 conductors, or lead-in conductors areinstalled in raceways or metal cable armor.

Informational Note No. 1: See 250.60for grounding associated with lightning protection components— strike termination devices. For further information, see NFPA 780-2017, Standard for theInstallation of Lightning Protection Systems, which contains detailed information on grounding,bonding, and spacing from lightning protection systems, and the calculation of specific separationdistances using the sideflash equation in Section 4.6.

Informational Note No. 2: Metal raceways, enclosures, frames, and other non–current-carryingmetal parts of electrical equipment installed on a building equipped with a lightning protectionsystem may require bonding or spacing from the lightning protection conductors in accordance withNFPA 780-2017, Standard for the Installation of Lightning Protection Systems. Separation fromlightning protection conductors is typically 1.8 m (6 ft) through air or 900 mm (3 ft) through densematerials such as concrete, brick, or wood.


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(B) Antennas and Lead-ins — Indoors.

Indoor antennas and indoor lead-ins shall not be run nearer than 50 mm (2 in.) to conductors of otherwiring systems in the premises.

Exception No. 1: Where such other conductors are in metal raceways or cable armor.

Exception No. 2: Where permanently separated from such other conductors by a continuous and firmlyfixed nonconductor, such as porcelain tubes or flexible tubing.

(C) In Boxes or Other Enclosures.

Indoor antennas and indoor lead-ins shall be permitted to occupy the same box or enclosure withconductors of other wiring systems where separated from such other conductors by an effectivepermanently installed barrier.

810.19 Electrical Supply Circuits Used in Lieu of Antenna — Receiving Stations.

Where an electrical supply circuit is used in lieu of an antenna, the device by which the radio receiving setis connected to the supply circuit shall be listed.

810.20 Antenna Discharge Units — Receiving Stations.

(A) Where Required.

Each conductor of a lead-in from an outdoor antenna shall be provided with a listed antenna dischargeunit.

Exception: Where the lead-in conductors are enclosed in a continuous metallic shield that either isgrounded with a conductor in accordance with 810.21 or is protected by an antenna discharge unit.

(B) Location.

Antenna discharge units shall be located outside the building or inside the building between the point ofentrance of the lead-in and the radio set or transformers and as near as practicable to the entrance of theconductors to the building. The antenna discharge unit shall not be located near combustible material or ina hazardous (classified) location as defined in Article 500.

(C) Grounding.

The antenna discharge unit shall be grounded in accordance with 810.21.

810.21 Bonding Conductors and Grounding Electrode Conductors — Receiving Stations.

Bonding conductors and grounding electrode conductors shall comply with 810.21(A) through 810.21(K).

(A) Material.

The bonding conductor or grounding electrode conductor shall be of copper, aluminum, copper-clad steel,copper-clad aluminum, bronze, or similar corrosion-resistant material. Aluminum or copper-clad aluminumbonding conductors or grounding electrode conductors shall not be used where in direct contact withmasonry or the earth or where subject to corrosive conditions. Where used outside, aluminum or copper-clad aluminum conductors shall not be installed within 450 mm (18 in.) of the earth.

(B) Insulation.

Insulation on bonding conductors or grounding electrode conductors shall not be required.

(C) Supports.

The bonding conductor or grounding electrode conductor shall be securely fastened in place and shall bepermitted to be directly attached to the surface wired over without the use of insulating supports.

Exception: Where proper support cannot be provided, the size of the bonding conductors or groundingelectrode conductors shall be increased proportionately.

(D) Physical Protection.


(E) Run in Straight Line.

The bonding conductor or grounding electrode conductor for an antenna mast or antenna discharge unitshall be run in as straight a line as practicable.

(F) Electrode.


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The bonding conductor or grounding electrode conductor shall be connected as required in 810.21(F)(1)through 810.21(F)(3).




If the building or structure served has no intersystem bonding termination, the bonding conductor orgrounding electrode conductor shall be connected to the nearest accessible location on the following:


(2) The grounded interior metal water piping systems, within 1.52 m (5 ft) from its point of entrance to thebuilding, as covered in 250.52

(3) The power service accessible means external to the building, as covered in 250.94


(5) The service equipment enclosure, or

(6) The grounding electrode conductor or the grounding electrode conductor metal enclosures of thepower service



If the building or structure served has no intersystem bonding termination or grounding means asdescribed in 810.21(F)(2), the grounding electrode conductor shall be connected to a grounding electrodeas described in 250.52.

(G) Inside or Outside Building.

The bonding conductor or grounding electrode conductor shall be permitted to be run either inside oroutside the building.

(H) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 10 AWG copper,8 AWG aluminum, or 17 AWG copper-clad steel or bronze.

(I) Common Ground.

A single bonding conductor or grounding electrode conductor shall be permitted for both protective andoperating purposes.

(J) Bonding of Electrodes.

A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between the radio andtelevision equipment grounding electrode and the power grounding electrode system at the building orstructure served where separate electrodes are used.

(K) Electrode Connection.


Part III. Amateur and Citizen Band Transmitting and Receiving Stations — Antenna Systems

810.51 Other Sections.

In addition to complying with Part III, antenna systems for amateur and citizen band transmitting andreceiving stations shall also comply with 810.11 through 810.15.


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810.52 Size of Antenna.

Antenna conductors for transmitting and receiving stations shall be of a size not less than given in Table810.52.

Table 810.52 Size of Outdoor Antenna Conductors

Material

Minimum Size of Conductors (AWG) Where MaximumOpen Span Length Is

Less Than 45 m (150 ft) Over 45 m (150 ft)

Hard-drawn copper 14 10

Copper-clad steel, bronze, or other high-strength material

14 12

810.53 Size of Lead-in Conductors.

Lead-in conductors for transmitting stations shall, for various maximum span lengths, be of a size at leastas great as that of conductors for antennas as specified in 810.52.

810.54 Clearance on Building.

Antenna conductors for transmitting stations, attached to buildings, shall be firmly mounted at least 75 mm(3 in.) clear of the surface of the building on nonabsorbent insulating supports, such as treated pins orbrackets equipped with insulators having not less than 75-mm (3-in.) creepage and airgap distances.Lead-in conductors attached to buildings shall also comply with these requirements.

Exception: Where the lead-in conductors are enclosed in a continuous metallic shield that is groundedwith a conductor in accordance with 810.58, they shall not be required to comply with theserequirements. Where grounded, the metallic shield shall also be permitted to be used as a conductor.

810.55 Entrance to Building.

Except where protected with a continuous metallic shield that is grounded with a conductor in accordancewith 810.58, lead-in conductors for transmitting stations shall enter buildings by one of the followingmethods:

(1) Through a rigid, noncombustible, nonabsorbent insulating tube or bushing

(2) Through an opening provided for the purpose in which the entrance conductors are firmly secured soas to provide a clearance of at least 50 mm (2 in.)

(3) Through a drilled window pane

810.56 Protection Against Accidental Contact.

Lead-in conductors to radio transmitters shall be located or installed so as to make accidental contact withthem difficult.

810.57 Antenna Discharge Units — Transmitting Stations.

Each conductor of a lead-in for outdoor antennas shall be provided with an antenna discharge unit or othersuitable means that drain static charges from the antenna system.

Exception No. 1: Where the lead-in is protected by a continuous metallic shield that is grounded with aconductor in accordance with 810.58, an antenna discharge unit or other suitable means shall not berequired.

Exception No. 2: Where the antenna is grounded with a conductor in accordance with 810.58, anantenna discharge unit or other suitable means shall not be required.

810.58 Bonding Conductors and Grounding Electrode Conductors — Amateur and Citizen BandTransmitting and Receiving Stations.

Bonding conductors and grounding electrode conductors shall comply with 810.58(A) through 810.58(C).

(A) Other Sections.

All bonding conductors and grounding electrode conductors for amateur and citizen band transmitting andreceiving stations shall comply with 810.21(A) through 810.21(C).

(B) Size of Protective Bonding Conductor or Grounding Electrode Conductor.

The protective bonding conductor or grounding electrode conductor for transmitting stations shall be aslarge as the lead-in but not smaller than 10 AWG copper, bronze, or copper-clad steel.


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(C) Size of Operating Bonding Conductor or Grounding Electrode Conductor.

The operating bonding conductor or grounding electrode conductor for transmitting stations shall not beless than 14 AWG copper or its equivalent.

Part IV. Interior Installation — Transmitting Stations

810.70 Clearance from Other Conductors.

All conductors inside the building shall be separated at least 100 mm (4 in.) from the conductors of anyelectric light, power, or signaling circuit.

Exception No. 1: As provided in Article 640.

Exception No. 2: Where separated from other conductors by raceway or some firmly fixed nonconductor,such as porcelain tubes or flexible tubing.

810.71 General.

Transmitters shall comply with 810.71(A) through (C).

(A) Enclosing.

The transmitter shall be enclosed in a metal frame or grille or separated from the operating space by abarrier or other equivalent means, all metallic parts of which are effectively connected to a bondingconductor or grounding electrode conductor.

(B) Grounding of Controls.

All external metal handles and controls accessible to the operating personnel shall be effectivelyconnected to an equipment grounding conductor if the transmitter is powered by the premises wiringsystem or grounded with a conductor in accordance with 810.21.

(C) Interlocks on Doors.

All access doors shall be provided with interlocks that disconnect all voltages of over 350 volts betweenconductors when any access door is opened.

Article 820 Community Antenna Television and Radio Distribution Systems

Part I. General

820.1 Scope.

This article covers coaxial cable distribution of radio frequency signals typically employed in communityantenna television (CATV) systems.

Informational Note: See 90.2(B)(4) for installations of CATV and radio distribution systems that arenot covered.

820.2 Definitions.


Abandoned Coaxial Cable.

Installed coaxial cable that is not terminated at equipment other than a coaxial connector and not identifiedfor future use with a tag.


A circuit in such a position that, in case of failure of supports and or insulation, contact with another circuitmay result.


Point of Entrance.

The point within a building at which the coaxial cable emerges from an external wall or from a concretefloor slab.

Premises.

The land and buildings of a user located on the user side of utility-user network point of demarcation.


Circuits and equipment shall comply with 820.3(A) through (I). Only those sections of Chapters 1 through7 referenced in Article 820 shall apply to community antenna television and radio distribution systems.


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CATV equipment installed in a location that is classified in accordance with 500.5 and 505.5 shall complywith the applicable requirements of Chapter 5.







(E) Installations of Conductive and Nonconductive Optical Fiber Cables.

The requirements of Article 770 shall apply.

(F) Communications Circuits.


(G) Network-Powered Broadband Communications Systems.


(H) Premises-Powered Broadband Communications Systems.


(I) Alternate Wiring Methods.

The wiring methods of Article 830 shall be permitted to substitute for the wiring methods of Article 820.

Informational Note: Use of Article 830 wiring methods will facilitate the upgrading of Article 820installations to network-powered broadband applications.

820.15 Power Limitations.

Coaxial cable shall be permitted to deliver power to equipment that is directly associated with the radiofrequency distribution system if the voltage is not over 60 volts and if the current is supplied by atransformer or other device that has power-limiting characteristics.

Power shall be blocked from premises devices on the network that are not intended to be powered via thecoaxial cable.


Access to electrical equipment shall not be denied by an accumulation of coaxial cables that preventsremoval of panels, including suspended ceiling panels.


Community television and radio distribution systems shall be installed in a neat and workmanlike manner.Coaxial cables installed exposed on the surface of ceiling and sidewalls shall be supported by the buildingstructure in such a manner that the cables will not be damaged by normal building use. Such cables shallbe secured by hardware including straps, staples, cable ties, hangers, or similar fittings designed andinstalled so as not to damage the cable. The installation shall also conform to 300.4(D) and 300.11.Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in otherspaces used for environmental air (plenums) shall be listed as having low smoke and heat releaseproperties in accordance with 805.170(C).

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568–2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1-D-2015, Commercial Building Telecommunications Infrastructure Standard; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012, ResidentialTelecommunications Infrastructure Standard; ANSI/TIA-1005-A-2012, TelecommunicationsInfrastructure Standard for Industrial Premises; ANSI/TIA-1179-2010, Healthcare FacilityTelecommunications Infrastructure Standard; ANSI/TIA-4966-2014, TelecommunicationsInfrastructure Standard for Educational Facilities; and other ANSI-approved installation standards.


Informational Note No. 3: Paint, plaster, cleaners, abrasives, corrosive residues, or othercontaminants may result in an undetermined alteration of coaxial cable properties.


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The accessible portion of abandoned coaxial cables shall be removed. Where cables are identified forfuture use with a tag, the tag shall be of sufficient durability to withstand the environment involved.


Installations of coaxial cables and communications raceways in hollow spaces, vertical shafts, andventilation or air-handling ducts shall be made so that the possible spread of fire or products of combustionwill not be substantially increased. Openings around penetrations of coaxial cables and communicationsraceways through fire-resistant-rated walls, partitions, floors, or ceilings shall be firestopped usingapproved methods to maintain the fire resistance rating.

Informational Note: Directories of electrical construction materials published by qualified testinglaboratories contain many listing installation restrictions necessary to maintain the fire-resistiverating of assemblies where penetrations or openings are made. Building codes also containrestrictions on membrane penetrations on opposite sides of a fire resistance–rated wall assembly.An example is the 600-mm (24-in.) minimum horizontal separation that usually applies betweenboxes installed on opposite sides of the wall. Assistance in complying with 820.26can be found inbuilding codes, fire resistance directories, and product listings.

820.27 Temperature Limitations of Wires and Cables.


Part II. Coaxial Cables Outside and Entering Buildings

820.44 Overhead (Aerial) Coaxial Cables.

Overhead (aerial) coaxial cables, prior to the point of grounding, as specified in 820.93, shall comply with820.44(A) through 820.44(E).


Where coaxial cables and electric light or power conductors are supported by the same pole or are runparallel to each other in-span, the conditions described in 820.44(A)(1) through 820.44(A)(4) shall be met.


Where practicable, the coaxial cables shall be located below the electric light or power conductors.


Coaxial cables shall not be attached to cross-arm that carries electric light or power conductors.

(3) Climbing Space.

The climbing space through coaxial cables shall comply with the requirements of 225.14(D).

(4) Clearance.

Lead-in or overhead (aerial) -drop coaxial cables from a pole or other support, including the point of initialattachment to a building or structure, shall be kept away from electric light, power, Class 1, or non–power-limited fire alarm circuit conductors so as to avoid the possibility of accidental contact.

Exception: Where proximity to electric light, power, Class 1, or non–power-limited fire alarm circuitconductors cannot be avoided, the installation shall provide clearances of not less than 300 mm (12 in.)from electric light, power, Class 1, or non–power-limited fire alarm circuit conductors. The clearancerequirement shall apply at all points along the drop, and it shall increase to 1.0 m (40 in.) at the pole.

(B) Above Roofs.

Coaxial cables shall have a vertical clearance of not less than 2.5 m (8 ft) from all points of roofs abovewhich they pass.

Exception No. 1: Vertical clearance requirements shall not apply to auxiliary buildings such as garagesand the like.

Exception No. 2: A reduction in clearance above only the overhanging portion of the roof to not less than450 mm (18 in.) shall be permitted if (1) not more than 1.2 m (4 ft) of communications service dropconductors pass above the roof overhang, and (2) they are terminated at a raceway mast or otherapproved support.


(C) On Masts.

Overhead (aerial) coaxial cables shall be permitted to be attached to an above-the-roof raceway mast thatdoes not enclose or support conductors of electric light or power circuits.


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Coaxial cables extending between buildings or structures, and also the supports or attachment fixtures,shall be identified and shall have sufficient strength to withstand the loads to which they might besubjected.

Exception: Where a coaxial cable does not have sufficient strength to be self-supporting, it shall beattached to a supporting messenger cable that, together with the attachment fixtures or supports, shallbe acceptable for the purpose and shall have sufficient strength to withstand the loads to which they maybe subjected.

(E) On Buildings.

Where attached to buildings, coaxial cables shall be securely fastened in such a manner that they will beseparated from other conductors in accordance with 820.44(E)(1), 820.44(E)(2), and 820.44(E)(3).

(1) Electric Light or Power.

The coaxial cable shall have a separation of at least 100 mm (4 in.) from electric light, power, Class 1, ornon–power-limited fire alarm circuit conductors not in raceway or cable, or shall be permanently separatedfrom conductors of the other system by a continuous and firmly fixed nonconductor in addition to theinsulation on the wires.

(2) Other Communications Systems.

Coaxial cable shall be installed so that there will be no unnecessary interference in the maintenance of theseparate systems. In no case shall the conductors, cables, messenger strand, or equipment of one systemcause abrasion to the conductors, cable, messenger strand, or equipment of any other system.

(3) Lightning Conductors.

Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between any coaxial cable andlightning conductors.

Informational Note No. 1: For additional information regarding overhead (aerial) wires and cables,see ANSI C2-2012, National Electrical Safety Code, Part 2, Safety Rules for Overhead Lines.

Informational Note No. 2: See Section 4.6 of NFPA 780-2017, Standard for the Installation ofLightning Protection Systems, for the calculation of sideflash distance.

820.47 Underground Coaxial Cables Entering Buildings.

Underground coaxial cables entering buildings shall comply with 820.47(A) and 820.47(B).


Underground coaxial cables in a duct, pedestal, handhole enclosure, or manhole that contains electriclight, power, or Class 1 or non–power-limited fire alarm circuit conductors shall be in a section permanentlyseparated from such conductors by means of a suitable barrier.

(B) Direct-Buried Cables and Raceways.

Direct-buried coaxial cable shall be separated at least 300 mm (12 in.) from conductors of any light orpower, non–power-limited fire alarm circuit conductors, or Class 1 circuit.

Exception No. 1: Separation shall not be required where electric service conductors or coaxial cables areinstalled in raceways or have metal cable armor.

Exception No. 2: Separation shall not be required where electric light or power branch-circuit or feederconductors or Class 1 circuit conductors are installed in a raceway or in metal-sheathed, metal-clad, orType UF or Type USE cables; or the coaxial cables have metal cable armor or are installed in a raceway.


Unlisted outside plant coaxial cables shall be permitted to be installed in building spaces other than risers,ducts used for environmental air, plenums used for environmental air, and other spaces used forenvironmental air, where the length of the cable within the building, measured from its point of entrance,does not exceed 15 m (50 ft) and the cable enters the building from the outside and is terminated at agrounding block. The point of entrance shall be permitted to be extended from the penetration of theexternal wall or floor slab by continuously enclosing the entrance cables in rigid metal conduit (RMC) orintermediate metal conduit (IMC) to the point of emergence.


Metal conduit containing entrance coaxial cable shall be connected by a bonding conductor or groundingelectrode conductor to the building grounding electrode system in accordance with 820.100(B).



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820.93 Grounding of the Outer Conductive Shield of Coaxial Cables.

Coaxial cables entering buildings or attached to buildings shall comply with 820.93(A) or (B). Where theouter conductive shield of a coaxial cable is grounded, no other protective devices shall be required. Forpurposes of this section, grounding located at mobile home service equipment located within 9.0 m (30 ft)of the exterior wall of the mobile home it serves, or at a mobile home disconnecting means grounded inaccordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves,shall be considered to meet the requirements of this section.

Informational Note: Selecting a grounding block location to achieve the shortest practicablebonding conductor or grounding electrode conductor helps limit potential differences betweenCATV and other metallic systems.


In installations where the coaxial cable enters the building, the outer conductive shield shall be groundedin accordance with 820.100. The grounding shall be as close as practicable to the point of entrance.

(B) Terminating Outside of the Building.

In installations where the coaxial cable is terminated outside of the building, the outer conductive shieldshall be grounded in accordance with 820.100. The grounding shall be as close as practicable to the pointof attachment or termination.

(C) Location.

Where installed, a listed primary protector shall be applied on each community antenna and radiodistribution (CATV) cable external to the premises. The listed primary protector shall be located as closeas practicable to the entrance point of the cable on either side or integral to the ground block.

(D) Hazardous (Classified) Locations.

Where a primary protector or equipment providing the primary protection function is used, it shall not belocated in any hazardous (classified) location as defined in 500.5 and 505.5 or in the vicinity of easilyignitible material.



820.100 Cable Bonding and Grounding.

The shield of the coaxial cable shall be bonded or grounded as specified in 820.100(A) through (E).

Exception: For communications systems using coaxial cable completely contained within the building(i.e., they do not exit the building) or the exterior zone of protection defined by a 46 m (150 ft) radiusrolling sphere and isolated from outside cable plant, the shield shall be permitted to be grounded by aconnection to an equipment grounding conductor as described in 250.118. Connecting to an equipmentgrounding conductor through a grounded receptacle using a dedicated bonding jumper and apermanently connected listed device shall be permitted. Use of a cord and plug for the connection to anequipment grounding conductor shall not be permitted.

Informational Note: See 4.8.3.1 of NFPA 780-2017, Standard for the Installation of LightningProtection Systems, for the theory of the term rolling sphere.


(1) Insulation.


(2) Material.


(3) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. It shall have acurrent-carrying capacity not less than the outer sheath of the coaxial cable. The bonding conductor orgrounding electrode conductor shall not be required to exceed 6 AWG.


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(4) Length.



Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximumbonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate groundingelectrode as specified in 250.52(A)(5), (A)(6), or (A)(7) shall be used, the grounding electrode conductorshall be connected to the separate grounding electrode in accordance with 250.70, and the separategrounding electrode shall be connected to the power grounding electrode system in accordance with820.100(D).





(B) Electrode.

The bonding conductor or grounding electrode conductor shall be connected in accordance with820.100(B)(1), 820.100(B)(2), or 820.100(B)(3).












(7) The grounding electrode conductor or the grounding electrode of a building or structure disconnectingmeans that is connected to an electrode as covered in 250.32


For purposes of this section, the mobile home service equipment or the mobile home disconnectingmeans, as described in 820.93, shall be considered accessible.


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(2) If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 820.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes described in250.52(A)(5), (A)(7), and (A)(8). Steam, hot water pipes, or lightning protection system conductorsshall not be employed as grounding electrodes for bonding conductors or grounding electrodeconductors.




A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between thecommunity antenna television system's grounding electrode and the power grounding electrode system atthe building or structure served where separate electrodes are used.




(E) Shield Protection Devices.

Grounding of a coaxial drop cable shield by means of a protective device that does not interrupt thegrounding system within the premises shall be permitted.

820.103 Equipment Grounding.

Unpowered equipment and enclosures or equipment powered by the coaxial cable shall be consideredgrounded where connected to the metallic cable shield.

820.106 Grounding and Bonding at Mobile Homes.

(A) Grounding.

Grounding shall comply with 820.106(A)(1) and (A)(2).

(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall ofthe mobile home it serves, the coaxial cable shield ground, or surge arrester grounding terminal, shallbe connected to a grounding electrode conductor or grounding electrode in accordance with820.100(B)(3).

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 andlocated within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the coaxial cable shieldground, or surge arrester grounding terminal, shall be connected to a grounding electrode inaccordance with 820.100(B)(3).

(B) Bonding.

The coaxial cable shield grounding terminal, surge arrester grounding terminal, or grounding electrodeshall be connected to the metal frame or available grounding terminal of the mobile home with a copperconductor not smaller than 12 AWG under any of the following conditions:




820.110 Raceways, Cable Routing Assemblies, and Cable Trays for Coaxial Cables.


Coaxial cables shall be permitted to be installed in any raceway that complies with either 820.110(A)(1) or(A)(2).


Coaxial cables shall be permitted to be installed in any raceway included in Chapter 3. The raceways shallbe installed in accordance with the requirements of Chapter 3.


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Coaxial cables shall be permitted to be installed in plenum communications raceways, risercommunications raceways, and general-purpose communications raceways, selected in accordance withTable 805.154(b) , listed in accordance with 805.182, and installed in accordance with 805.113 and 362.24through 362.56, where the requirements applicable to electrical nonmetallic tubing (ENT) apply.

(3) Innerduct for Coaxial Cables.

Listed plenum communications raceways, listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805.154(b) shall be permitted to beinstalled as innerduct in any type of listed raceway permitted in Chapter 3.

(B) Raceway Fill for Coaxial Cables.

The raceway fill requirements of Chapters 3 and 9 shall not apply to coaxial cables.


Coaxial cables shall be permitted to be installed in plenum cable routing assemblies, riser cable routingassemblies, and general-purpose cable routing assemblies selected in accordance with Table 805.154(c) ,listed in accordance with 805.182, and installed in accordance with 805.110(C) and 805.113.

(D) Cable Trays.

Coaxial cables shall be permitted to be installed in metal or listed nonmetallic cable tray systems.

820.113 Installation of Coaxial Cables.

Installation of coaxial cables shall comply with 820.113(A) through (K). Installation of raceways and cablerouting assemblies shall comply with 820.110.

(A) Listing.

Coaxial cables installed in buildings shall be listed.

Exception: Coaxial cables that are installed in compliance with 820.48 shall not be required to be listed.


The following cables shall be permitted in ducts specifically fabricated for environmental air as described in300.22(B) if they are directly associated with the air distribution system:

(1) Up to 1.22 m (4 ft) of Type CATVP

(2) Types CATVP, CATVR, CATV, and CATVX installed in raceways that are installed in compliance with300.22(B)


(C) Other Spaces Used For Environmental Air (Plenums).

The following cables shall be permitted in other spaces used for environmental air (plenums) as describedin 300.22(C):

(1) Type CATVP

(2) Type CATVP installed in plenum communications raceways

(3) Type CATVP installed in plenum cable routing assemblies

(4) Type CATVP supported by open metal cable tray systems

(5) Types CATVP, CATVR, CATV, and CATVX installed in raceways that are installed in compliance with300.22(C)

(6) Types CATVP, CATVR, CATV, and CATVX supported by solid-bottom metal cable trays with solidmetal covers in other spaces used for environmental air (plenums) as described in 300.22(C)

(7) Types CATVP, CATVR, CATV, and CATVX installed in plenum communications raceways, risercommunications raceways, or general-purpose communications raceways supported by solid-bottommetal cable trays with solid metal covers in other spaces used for environmental air (plenums) asdescribed in 300.22(C)

Informational Note: For information on fire protection of wiring installed in other spaces used forenvironmental air (plenums), see NFPA 90A-2018, Standard for the Installation of Air-Conditioningand Ventilating Systems.


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(D) Risers — Cables in Vertical Runs.

The following cables shall be permitted in vertical runs penetrating one or more floors and in vertical runsin a shaft:

(1) Types CATVP and CATVR

(2) Types CATVP and CATVR installed in the following:


b. Plenum cable routing assemblies

c. Riser communications raceways




The following cables and innerducts shall be permitted in metal raceways in a riser having firestops ateach floor:

(1) Types CATVP, CATVR, CATV, and CATVX

(2) Types CATVP, CATVR, CATV, and CATVX installed in the following:





(F) Risers — Cables in Fireproof Shafts.

The following cables shall be permitted to be installed in fireproof riser shafts with firestops at each floor:

(1) Types CATVP, CATVR, CATV, and CATVX

(2) Types CATVP, CATVR, and CATV installed in the following:





e. General-purpose communications raceways




The following cables shall be permitted in one- and two-family dwellings:

(1) Types CATVP, CATVR, and CATV

(2) Type CATVX less than 10 mm (3⁄8 in.) in diameter










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(H) Cable Trays.

The following cables shall be permitted to be supported by cable trays:







The following cables shall be permitted to be installed in distributing frames and cross-connect arrays:










The following cables shall be permitted to be installed in building locations other than the locations coveredin 820.113(B) through (I):


(2) A maximum of 3 m (10 ft) of exposed Type CATVX in nonconcealed spaces








(4) Types CATVP, CATVR, CATV, and CATVX installed in a raceway of a type recognized in Chapter 3

(K) One- and Two-Family and Multifamily Dwellings.

The following cables shall be permitted to be installed in one- and two-family and multifamily dwellings inlocations other than those locations covered in 820.113(B) through (I):


(2) Type CATVX less than 10 mm (3⁄8 in.) in diameter








(4) Types CATVP, CATVR, CATV, and CATVX installed in a raceway of a type recognized in Chapter 3


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820.133 Installation of Coaxial Cables and Equipment.

Beyond the point of grounding, as defined in 820.93, the coaxial cable installation shall comply with820.133(A) and (B).

(A) Separation from Other Conductors.

(1) In Raceways, Cable Trays, Boxes, Enclosures, and Cable Routing Assemblies.

(a) Other Circuits.Coaxial cables shall be permitted in the same raceway, cable tray, box, enclosure,or cable routing assembly with jacketed cables of any of the following:

(1) Class 2 and Class 3 remote control, signaling, and power-limited circuits in compliance with Article 645or Parts I and III of Article 725



(4) Communications circuits in compliance with Parts I and V of Article 805

(5) Low-power network-powered broadband communications circuits in compliance with Parts I and V ofArticle 830

(b) Electric Light, Power, Class 1, Non–Power-Limited Fire Alarm, and Medium-Power Network-Powered Broadband Communications Circuits. Coaxial cable shall not be placed in any raceway,compartment, outlet box, junction box, or other enclosures with conductors of electric light, power, Class 1,non–power-limited fire alarm, or medium-power network-powered broadband communications circuits.

Exception No. 1: Coaxial cable shall be permitted to be placed in any raceway, compartment, outlet box,junction box, or other enclosures with conductors of electric light, power, Class 1, non–power-limited firealarm, or medium-power network-powered broadband communications circuits where all of theconductors of electric light, power, Class 1, non–power-limited fire alarm, and medium-power network-powered broadband communications circuits are separated from all of the coaxial cables by a permanentbarrier or listed divider.

Exception No. 2: Coaxial cable shall be permitted to be placed in outlet boxes, junction boxes, or similarfittings or compartments with power conductors where such conductors are introduced solely for powersupply to the coaxial cable system distribution equipment. The power circuit conductors shall be routedwithin the enclosure to maintain a minimum 6 mm (1⁄4 in.) separation from coaxial cables.


Coaxial cable shall be separated at least 50 mm (2 in.) from conductors of any electric light, power,Class 1, non–power-limited fire alarm, or medium-power network-powered broadband communicationscircuits.

Exception No. 1: Separation shall not be required where either (1) all of the conductors of electric light,power, Class 1, non–power-limited fire alarm, and medium-power network-powered broadbandcommunications circuits are in a raceway, or in metal-sheathed, metal-clad, nonmetallic-sheathed, TypeAC or Type UF cables, or (2) all of the coaxial cables are encased in a raceway.

Exception No. 2: Separation shall not be required where the coaxial cables are permanently separatedfrom the conductors of electric light, power, Class 1, non–power-limited fire alarm, and medium-powernetwork-powered broadband communications circuits by a continuous and firmly fixed nonconductor,such as porcelain tubes or flexible tubing, in addition to the insulation on the wire.

(B) Support of Coaxial Cables.

Raceways shall be used for their intended purpose. Coaxial cables shall not be strapped, taped, orattached by any means to the exterior of any conduit or raceway as a means of support.

Exception: Overhead (aerial) spans of coaxial cables shall be permitted to be attached to the exterior ofa raceway-type mast intended for the attachment and support of such cables.


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820.154 Applications of Listed CATV Cables.


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Permitted and nonpermitted applications of listed coaxial cables shall be as indicated in Table 820.154(a).The permitted applications shall be subject to the installation requirements of 820.110 and 820.113. Thesubstitutions for coaxial cables in Table 820.154(b) and illustrated in Figure 820.154 shall be permitted.

Informational Note: The substitute cables in Table 820.154(b) and Figure 820.154 are only coaxial-type cables.

Table 820.154(a) Applications of Listed Coaxial Cables in Buildings

ApplicationsListed Coaxial Cable Type

CATVP CATVR CATV CATVX

In ducts specifically fabricated forenvironmental air as described in300.22(B)

In fabricated ducts as described in300.22(B)

Y* N N N

In metal raceway that complies with300.22(B)

Y* Y* Y* Y*



Y* N N N

In metal raceway that complies with300.22(C)

Y* Y* Y* Y*


Y* N N N

In plenum cable routing assemblies Y* N N N


Y* N N N

Supported by solid-bottom metalcable trays with solid metal covers

Y* Y* Y* Y*

In risers

In vertical runs Y* Y* N N

In metal raceways Y* Y* Y* Y*

In fireproof shafts Y* Y* Y* Y*


Y* Y* N N

In plenum cable routing assemblies Y* Y* N N

In riser communications raceways Y* Y* N N

In riser cable routing assemblies Y* Y* N N

In one- and two-family dwellings Y* Y* Y* Y*


General Y* Y* Y* Y*


In multifamily dwellings Y* Y* Y* Y*

In nonconcealed spaces Y* Y* Y* Y*

Supported by cable trays Y* Y* Y* N


Y* Y* Y* N


Y* Y* Y* Y*


Y* Y* Y* N

In plenum cable routing assemblies Y* Y* Y* N

In riser communications raceways Y* Y* Y* N

In riser cable routing assemblies Y* Y* Y* N

In general-purpose communicationsraceways

Y* Y* Y* N


Y* Y* Y* N

Note: An “N” in the table indicates that the cable type shall not be permitted to be installed in the


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application. A “Y*” indicates that the cable type shall be permitted to be installed in the application, subjectto the limitations described in 820.113.

Informational Note No. 1: Part V of Article 820 covers installation methods within buildings. This tablecovers the applications of listed coaxial cables in buildings. The definition of Point of Entrance is in 820.2.

Informational Note No. 2: For information on the restrictions to the installation of communications cables inducts specifically fabricated for environmental air, see 820.113(B).

Table 820.154(b) Coaxial Cable Uses and Permitted Substitutions


CATVP CMP, BLP

CATVR CATVP, CMP, CMR, BMR, BLP, BLR

CATV CATVP, CMP, CATVR, CMR, CMG, CM, BMR, BM, BLP, BLR, BL

CATVX CATVP, CMP, CATVR, CMR, CATV, CMG, CM, BMR, BM, BLP, BLR, BL, BLX



820.179 Coaxial Cables.

Cables shall be listed in accordance with 820.179(A) through (D) and marked in accordance with Table820.179. The cable voltage rating shall not be marked on the cable. Coaxial cables shall have atemperature rating of not less than 60°C (140°F). The temperature rating shall be marked on the jacket ofcoaxial cables that have a temperature rating exceeding 60°C (140°F).

Informational Note: Voltage markings on cables could be misinterpreted to suggest that the cablesmay be suitable for Class 1, electric light, and power applications.

Exception: Voltage markings shall be permitted where the cable has multiple listings and voltagemarking is required for one or more of the listings.

(A) Type CATVP.

Type CATVP community antenna television plenum coaxial cables shall be listed as being suitable for usein ducts, plenums, and other spaces used for environmental air and shall also be listed as havingadequate fire-resistant and low-smoke-producing characteristics.

Informational Note: One method of defining a cable that is low-smoke-producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less, an averageoptical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less whentested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke ofWires and Cables for Use in Air-Handling Spaces.


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(B) Type CATVR.

Type CATVR community antenna television riser coaxial cables shall be listed as being suitable for use ina vertical run in a shaft or from floor to floor and shall also be listed as having fire-resistant characteristicscapable of preventing the carrying of fire from floor to floor.


(C) Type CATV.

Type CATV community antenna television coaxial cables shall be listed as being suitable for general-purpose CATV use, with the exception of risers and plenums, and shall also be listed as being resistant tothe spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do notspread fire to the top of the tray in the “UL Flame Exposure, Vertical Tray Flame Test” inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-ReleaseTest for Electrical and Optical-Fiber Cables. The smoke measurements in the test method are notapplicable.


(D) Type CATVX.

Type CATVX limited-use community antenna television coaxial cables shall be listed as being suitable foruse in dwellings and for use in raceways and shall also be listed as being resistant to flame spread.


Table 820.179 Coaxial Cable Markings

Cable Marking Type

CATVP CATV plenum cable

CATVR CATV riser cable

CATV CATV cable

CATVX CATV cable, limited use



Where bonding or grounding is required, devices used to connect a shield, a sheath, or non–current-carrying metallic members of a cable to a bonding conductor, or grounding electrode conductor, shall belisted or be part of listed equipment.

Article 830 Network-Powered Broadband Communications Systems

Part I. General

830.1 Scope.

This article covers network-powered broadband communications systems that provide any combination ofvoice, audio, video, data, and interactive services through a network interface unit.

Informational Note No. 1: A typical basic system configuration includes a cable supplying power andbroadband signal to a network interface unit that converts the broadband signal to the componentsignals. Typical cables are coaxial cable with both broadband signal and power on the centerconductor, composite metallic cable with a coaxial member(s) or twisted pair members for thebroadband signal and twisted pair members for power, and composite optical fiber cable with a pairof conductors for power. Larger systems may also include network components such as amplifiersthat require network power.

Informational Note No. 2: See 90.2(B)(4) for installations of broadband communications systemsthat are not covered.

830.2 Definitions.


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Informational Note: A typical single-family network-powered communications circuit consists of acommunications drop or communications service cable and an NIU and includes thecommunications utility’s serving terminal or tap where it is not under the exclusive control of thecommunications utility.

Abandoned Network-Powered Broadband Communications Cable.

Installed network-powered broadband communications cable that is not terminated at equipment otherthan a connector and not identified for future use with a tag.

Block.

A square or portion of a city, town, or village enclosed by streets, including the alleys so enclosed but notany street.




Fault Protection Device.

An electronic device that is intended for the protection of personnel and functions under fault conditions,such as network-powered broadband communications cable short or open circuit, to limit the current orvoltage, or both, for a low-power network-powered broadband communications circuit and provideacceptable protection from electric shock.

Network Interface Unit (NIU).

A device that converts a broadband signal into component voice, audio, video, data, and interactiveservices signals and provides isolation between the network power and the premises signal circuits. Thesedevices often contain primary and secondary protectors.

Network-Powered Broadband Communications Circuit.

The circuit extending from the communications utility’s or service provider's serving terminal or tap up toand including the NIU.

Informational Note: A typical one-family dwelling network-powered communications circuit consistsof a communications drop or communications service cable and an NIU and includes thecommunications utility’s serving terminal or tap where it is not under the exclusive control of thecommunications utility.

Point of Entrance.

The point within a building at which the network-powered broadband communications cable emerges froman external wall, from a concrete floor slab, from rigid metal conduit (RMC), or from intermediate metalconduit (IMC).


Circuits and equipment shall comply with 830.3(A) through (F). Only those sections of Chapters 1 through7 referenced in Article 830 shall apply to communications circuits and equipment.


Network-powered broadband communications circuits and equipment installed in a location that isclassified in accordance with 500.5 and 505.5 shall comply with the applicable requirements of Chapter 5.








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(E) Output Circuits.

As appropriate for the services provided, the output circuits derived from the network interface unit shallcomply with the requirements of the following:

(1) Installations of communications circuits — Part V of Article 805

(2) Installations of community antenna television and radio distribution circuits — Part V of Article 820

Exception: Where protection is provided in the output of the NIU 830.90(B)(3) shall apply.

(3) Installations of optical fiber cables — Part V of Article 770

(4) Installations of Class 2 and Class 3 circuits — Part III of Article 725

(5) Installations of power-limited fire alarm circuits — Part III of Article 760

(F) Protection Against Physical Damage.

The requirements of 300.4 shall apply.

830.15 Power Limitations.

Network-powered broadband communications systems shall be classified as having low- or medium-powersources as specified in 830.15(1) or (2).

(1) Sources shall be classified as defined in Table 830.15.

(2) Direct-current power sources exceeding 150 volts to ground, but no more than 200 volts to ground,with the current to ground limited to 10 mA dc, that meet the current and power limitation for medium-power sources in Table 830.15 shall be classified as medium-power sources.

Informational Note: One way to determine compliance with 830.15(2) is listed informationtechnology equipment intended to supply power via a communications network that complies withthe requirements for RFT-V circuits as defined in UL 60950-21-2007, Standard for Safety forInformation Technology Equipment — Safety — Part 21: Remote Power Feeding.

Table 830.15 Limitations for Network-Powered Broadband Communications Systems

Network Power Source Low Medium

Circuit voltage, Vmax (volts)1 0–100 0–150

Power limitation, VAmax(volt-amperes)1 250 250

Current limitation, Imax (amperes)1 1000/Vmax 1000/Vmax

Maximum power rating (volt-amperes) 100 100

Maximum voltage rating (volts) 100 150

Maximum overcurrent protection (amperes)2 100/Vmax NA

1Vmax, Imax, and VAmax are determined with the current-limiting impedance in the circuit (not bypassed)as follows:

Vmax — Maximum system voltage regardless of load with rated input applied.

Imax — Maximum system current under any noncapacitive load, including short circuit, and withovercurrent protection bypassed if used. Imax limits apply after 1 minute of operation.

VAmax — Maximum volt-ampere output after 1 minute of operation regardless of load and overcurrentprotection bypassed if used.

2Overcurrent protection is not required where the current-limiting device provides equivalent currentlimitation and the current-limiting device does not reset until power or the load is removed.


Access to electrical equipment shall not be denied by an accumulation of network-powered broadbandcommunications cables that prevents removal of panels, including suspended ceiling panels.


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Network-powered broadband communications circuits and equipment shall be installed in a neat andworkmanlike manner. Cables installed exposed on the surface of ceilings and sidewalls shall be supportedby the building structure in such a manner that the cable will not be damaged by normal building use. Suchcables shall be secured by hardware, including straps, staples, cable ties, hangers, or similar fittings,designed and installed so as not to damage the cable. The installation shall also conform to 300.4(A), (D),(E), (F), and 300.11. Nonmetallic cable ties and other nonmetallic cable accessories used to secure andsupport cables in other spaces used for environmental air (plenums) shall be listed as having low smokeand heat release properties in accordance with 805.170(C).



Informational Note No. 3: Paint, plaster, cleaners, abrasives, corrosive residues, or othercontaminants may result in an undetermined alteration of network-powered broadband cableproperties.


The accessible portion of abandoned network-powered broadband cables shall be removed. Where cablesare identified for future use with a tag, the tag shall be of sufficient durability to withstand the environmentinvolved.


Installations of network-powered broadband cables in hollow spaces, vertical shafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products of combustion will not besubstantially increased. Openings around penetrations of network-powered broadband cables through fire-resistant-rated walls, partitions, floors, or ceilings shall be firestopped using approved methods to maintainthe fire resistance rating.

Informational Note: Directories of electrical construction materials published by qualified testinglaboratories contain many listing installation restrictions necessary to maintain the fire-resistiverating of assemblies where penetrations or openings are made. Building codes also containrestrictions on membrane penetrations on opposite sides of a fire resistance–rated wall assembly.An example is the 600-mm (24-in.) minimum horizontal separation that usually applies betweenboxes installed on opposite sides of the wall. Assistance in complying with 830.26 can be found inbuilding codes, fire resistance directories, and product listings.



Part II. Cables Outside and Entering Buildings

830.40 Entrance Cables.

Network-powered broadband communications cables located outside and entering buildings shall complywith 830.40(A) and (B).

(A) Medium-Power Circuits.

Medium-power network-powered broadband communications circuits located outside and enteringbuildings shall be installed using Type BMU, Type BM, or Type BMR network-powered broadbandcommunications medium-power cables.

(B) Low-Power Circuits.

Low-power network-powered broadband communications circuits located outside and entering buildingsshall be installed using Type BLU or Type BLX low-power network-powered broadband communicationscables. Cables shown in Table 830.154(b) shall be permitted to substitute.

Exception: Outdoor community antenna television and radio distribution system coaxial cables installedprior to January 1, 2000, and installed in accordance with Article 820, shall be permitted for low-power-type, network-powered broadband communications circuits.


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830.44 Overhead (Aerial) Cables.

Overhead (aerial) network-powered broadband communications cables shall comply with 830.44(A)through (G).

Informational Note: For additional information regarding overhead (aerial) wires and cables, seeANSI C2-2007, National Electrical Safety Code, Part 2, Safety Rules for Overhead Lines.


Where network-powered broadband communications cables and electric light or power conductors aresupported by the same pole or are run parallel to each other in-span, the conditions described in830.44(A)(1) through (A)(4) shall be met.


Where practicable, the network-powered broadband communications cables shall be located below theelectric light or power conductors.


Network-powered broadband communications cables shall not be attached to a cross-arm that carrieselectric light or power conductors.

(3) Climbing Space.

The climbing space through network-powered broadband communications wires and cables shall complywith the requirements of 225.14(D).

(4) Clearance.

Lead-in or overhead (aerial)-drop network-powered broadband communications cables from a pole orother support, including the point of initial attachment to a building or structure, shall be kept away fromelectric light, power, Class 1, or non–power-limited fire alarm circuit conductors so as to avoid thepossibility of accidental contact.

Exception: Where proximity to electric light, power, Class 1, or non–power-limited fire alarm circuitconductors cannot be avoided, the installation shall provide clearances of not less than 300 mm (12 in.)from electric light, power, Class 1, or non–power-limited fire alarm circuit conductors. The clearancerequirement shall apply to all points along the drop, and it shall increase to 1.02 m (40 in.) at the pole.

(B) Above Roofs.

Network-powered broadband communications cables shall have a vertical clearance of not less than 2.5 m(8 ft) from all points of roofs above which they pass.

Exception No. 1: Network-powered broadband communications cables shall not be required to have avertical clearance of 2.5 m (8 ft) above auxillary buildings such as garages and the like.

Exception No. 2: A reduction in clearance above only the overhanging portion of the roof to not less than450 mm (18 in.) shall be permitted if (1) not more than 1.2 m (4 ft) of the broadband communicationsdrop cables pass above the roof overhang, and (2) they are terminated at a through-the-roof raceway orsupport.


(C) Clearance from Ground.

Overhead (aerial) spans of network-powered broadband communications cables shall conform to not lessthan the following:

(1) 2.9 m (91⁄2 ft) — above finished grade, sidewalks, or from any platform or projection from which theymight be reached and accessible to pedestrians only

(2) 3.5 m (111⁄2 ft) — over residential property and driveways, and those commercial areas not subject totruck traffic

(3) 4.7 m (151⁄2 ft) — over public streets, alleys, roads, parking areas subject to truck traffic, driveways onother than residential property, and other land traversed by vehicles such as cultivated, grazing,forest, and orchard

Informational Note: These clearances have been specifically chosen to correlate with ANSI/IEEEC2-2012, National Electrical Safety Code, Table 232-1, which provides for clearances of wires,conductors, and cables above ground and roadways, rather than using the clearances referenced in225.18. Because Article 805 and Article 820 have had no required clearances, the communicationsindustry has used the clearances from the NESC for their installed cable plant.


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(D) Over Pools.

Clearance of network-powered broadband communications cable in any direction from the water level,edge of pool, base of diving platform, or anchored raft shall comply with those clearances in 680.9.

(E) Final Spans.

Final spans of network-powered broadband communications cables without an outer jacket shall bepermitted to be attached to the building, but they shall be kept not less than 900 mm (3 ft) from windowsthat are designed to be opened, doors, porches, balconies, ladders, stairs, fire escapes, or similarlocations.

Exception: Conductors run above the top level of a window shall be permitted to be less than the 900-mm (3-ft) requirement above.

Overhead (aerial) network-powered broadband communications cables shall not be installed beneathopenings through which materials might be moved, such as openings in farm and commercial buildings,and shall not be installed where they obstruct entrance to these building openings.

(F) Between Buildings.

Network-powered broadband communications cables extending between buildings or structures, and alsothe supports or attachment fixtures, shall be identified as suitable for outdoor aerial applications and shallhave sufficient strength to withstand the loads to which they may be subjected.

Exception: Where a network-powered broadband communications cable does not have sufficientstrength to be self-supporting, it shall be attached to a supporting messenger cable that, together withthe attachment fixtures or supports, shall be acceptable for the purpose and shall have sufficient strengthto withstand the loads to which they may be subjected.

(G) On Buildings.

Where attached to buildings, network-powered broadband communications cables shall be securelyfastened in such a manner that they are separated from other conductors in accordance with 830.44(G)(1)through (G)(4).


The network-powered broadband communications cable shall have a separation of at least 100 mm (4 in.)from electric light, power, Class 1, or non–power-limited fire alarm circuit conductors not in raceway orcable, or be permanently separated from conductors of the other system by a continuous and firmly fixednonconductor in addition to the insulation on the wires.


Network-powered broadband communications cables shall be installed so that there will be nounnecessary interference in the maintenance of the separate systems. In no case shall the conductors,cables, messenger strand, or equipment of one system cause abrasion to the conductors, cables,messenger strand, or equipment of any other system.


Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between any network-poweredbroadband communications cable and lightning conductors.

Informational Note: Specific separation distances may be calculated from the sideflash formulafound in NFPA 780-2017, Standard for the Installation of Lightning Protection Systems, Section 4.6.

(4) Protection from Damage.

Network-powered broadband communications cables attached to buildings or structures and located within2.5 m (8 ft) of finished grade shall be protected by enclosures, raceways, or other approved means.

Exception: A low-power network-powered broadband communications circuit that is equipped with alisted fault protection device, appropriate to the network-powered broadband communications cableused, and located on the network side of the network-powered broadband communications cable shallnot be required to be additionally protected by enclosures, raceways, or other approved means.

830.47 Underground Network-Powered Broadband Communications Cables Entering Buildings.

Underground network-powered broadband communications cables entering buildings shall comply with830.47(A) through 830.47(D).


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(A) Underground Systems with Electric Light and Power, Class 1, or Non–Power-Limited Fire AlarmCircuit Conductors.

Underground network-powered broadband communications cables in a duct, pedestal, handholeenclosure, or manhole that contains electric light, power conductors, non–power-limited fire alarm circuitconductors, or Class 1 circuits shall be in a section permanently separated from such conductors bymeans of a suitable barrier.

(B) Direct-Buried Cables and Raceways.

Direct-buried network-powered broadband communications cables shall be separated by at least 300 mm(12 in.) from conductors of any light, power, non–power-limited fire alarm circuit conductors or Class 1circuit.

Exception No. 1: Separation shall not be required where electric service conductors or network-poweredbroadband communications cables are installed in raceways or have metal cable armor.

Exception No. 2: Separation shall not be required where electric light or power branch-circuit or feederconductors, non–power-limited fire alarm circuit conductors, or Class 1 circuit conductors are installed ina raceway or in metal-sheathed, metal-clad, or Type UF or Type USE cables; or the network-poweredbroadband communications cables have metal cable armor or are installed in a raceway.


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(C) Protection from Physical Damage.

Direct-buried cable, conduit, or other raceways shall be installed to meet the minimum cover requirementsof Table 830.47(C). In addition, direct-buried cables emerging from the ground shall be protected byenclosures, raceways, or other approved means extending from the minimum cover distance required byTable 830.47(C) below grade to a point at least 2.5 m (8 ft) above finished grade. In no case shall theprotection be required to exceed 450 mm (18 in.) below finished grade. Types BMU and BLU direct-buriedcables emerging from the ground shall be installed in rigid metal conduit (RMC), intermediate metalconduit (IMC), rigid nonmetallic conduit, or other approved means extending from the minimum coverdistance required by Table 830.47(C) below grade to the point of entrance.

Exception: A low-power network-powered broadband communications circuit that is equipped with alisted fault protection device, appropriate to the network-powered broadband communications cableused, and located on the network side of the network-powered broadband communications cable beingprotected.

Table 830.47(C) Network-Powered Broadband Communications Systems Minimum Cover Requirements(Cover is the shortest distance measured between a point on the top surface of any direct-buried cable,conduit, or other raceway and the top surface of finished grade, concrete, or similar cover.)

Location of Wiring Method orCircuit

DirectBurialCables

Rigid Metal Conduit(RMC) or

Intermediate MetalConduit (IMC)

Nonmetallic RacewaysListed for Direct Burial;

Without ConcreteEncasement or OtherApproved Raceways

mm in. mm in. mm in.

All locations not specified below 450 18 150 6 300 12

In trench below 50-mm (2-in.) thickconcrete or equivalent

300 12 150 6 150 6

Under a building (in raceway only) 0 0 0 0 0 0

Under minimum of 100-mm (4-in.)thick concrete exterior slab with novehicular traffic and the slabextending not less than 150 mm(6 in.) beyond the undergroundinstallation

300 12 100 4 100 4

One- and two-family dwellingdriveways and outdoor parking areasand used only for dwelling-relatedpurposes

300 12 300 12 300 12

Notes:

1. Raceways approved for burial only where concrete encased shall require a concrete envelope not lessthan 50 mm (2 in.) thick.

2. Lesser depths shall be permitted where cables rise for terminations or splices or where access isotherwise required.

3. Where solid rock is encountered, all wiring shall be installed in metal or nonmetallic raceway permittedfor direct burial. The raceways shall be covered by a minimum of 50 mm (2 in.) of concrete extendingdown to rock.

4. Low-power network-powered broadband communications circuits using directly buried communityantenna television and radio distribution system coaxial cables that were installed outside and enteringbuildings prior to January 1, 2000, in accordance with Article 820 shall be permitted where buried to aminimum depth of 300 mm (12 in.).

(D) Pools.

Cables located under the pool or within the area extending 1.5 m (5 ft) horizontally from the inside wall ofthe pool shall meet those clearances and requirements specified in 680.11.


Metal conduit containing network-powered broadband communications entrance cable shall be connectedby a bonding conductor or grounding electrode conductor to the building grounding electrode system inaccordance with 830.100(B).



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830.90 Primary Electrical Protection.

(A) Application.

Primary electrical protection shall be provided on all network-powered broadband communicationsconductors that are neither grounded nor interrupted and are run partly or entirely in aerial cable notconfined within a block. Also, primary electrical protection shall be provided on all aerial or undergroundnetwork-powered broadband communications conductors that are neither grounded nor interrupted andare located within the block containing the building served so as to be exposed to lightning or accidentalcontact with electric light or power conductors operating at over 300 volts to ground.

Exception: Primary electrical protection shall not be required on the network-powered broadbandcommunications conductors where electrical protection is provided on the derived circuit(s) (output sideof the NIU) in accordance with 830.90(B)(3).

Informational Note No. 1: On network-powered broadband communications conductors notexposed to lightning or accidental contact with power conductors, providing primary electricalprotection in accordance with this article helps protect against other hazards, such as groundpotential rise caused by power fault currents, and above-normal voltages induced by fault currentson power circuits in proximity to the network-powered broadband communications conductors.

Informational Note No. 2: Network-powered broadband communications circuits are considered tohave a lightning exposure unless one or more of the following conditions exist:

(1) Circuits in large metropolitan areas where buildings are close together and sufficiently high tointercept lightning.

(2) Areas having an average of five or fewer thunderstorm days each year and earth resistivity ofless than 100 ohm-meters. Such areas are found along the Pacific coast.

Informational Note No. 3: For information on lightning protection systems, see NFPA 780-2017,Standard for the Installation of Lightning Protection Systems.

(1) Fuseless Primary Protectors.

Fuseless-type primary protectors shall be permitted where power fault currents on all protected conductorsin the cable are safely limited to a value no greater than the current-carrying capacity of the primaryprotector and of the primary protector bonding conductor or grounding electrode conductor.

(2) Fused Primary Protectors.

Where the requirements listed in 830.90(A)(1) are not met, fused-type primary protectors shall be used.Fused-type primary protectors shall consist of an arrester connected between each conductor to beprotected and ground, a fuse in series with each conductor to be protected, and an appropriate mountingarrangement. Fused primary protector terminals shall be marked to indicate line, instrument, and ground,as applicable.

(B) Location.

The location of the primary protector, where required, shall comply with (B)(1), (B)(2), or (B)(3):

(1) A listed primary protector shall be applied on each network-powered broadband communicationscable external to and on the network side of the network interface unit.

(2) The primary protector function shall be an integral part of and contained in the network interface unit.The network interface unit shall be listed as being suitable for application with network-poweredbroadband communications systems and shall have an external marking indicating that it containsprimary electrical protection.

(3) The primary protector(s) shall be provided on the derived circuit(s) (output side of the NIU), and thecombination of the NIU and the protector(s) shall be listed as being suitable for application withnetwork-powered broadband communications systems.

A primary protector, whether provided integrally or external to the network interface unit, shall be locatedas close as practicable to the point of entrance.

For purposes of this section, a network interface unit and any externally provided primary protectorslocated at mobile home service equipment located in sight from and not more than 9.0 m (30 ft) from theexterior wall of the mobile home it serves, or at a mobile home disconnecting means grounded inaccordance with 250.32 and located in sight from and not more than 9.0 m (30 ft) from the exterior wall ofthe mobile home it serves, shall be considered to meet the requirements of this section.

Informational Note: Selecting a network interface unit and primary protector location to achieve theshortest practicable primary protector bonding conductor or grounding electrode conductor helpslimit potential differences between communications circuits and other metallic systems.


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(C) Hazardous (Classified) Locations.

The primary protector or equipment providing the primary protection function shall not be located in anyhazardous (classified) location as defined in 500.5 and 505.5 or in the vicinity of easily ignitible material.


830.93 Grounding or Interruption of Metallic Members of Network-Powered Broadband CommunicationsCables.

Network-powered communications cables entering buildings or attaching to buildings shall comply with830.93(A) or (B).

For purposes of this section, grounding located at mobile home service equipment located within 9.0 m(30 ft) of the exterior wall of the mobile home it serves, or at a mobile home disconnecting meansgrounded in accordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobilehome it serves, shall be considered to meet the requirements of this section.

Informational Note: Selecting a grounding location to achieve the shortest practicable bondingconductor or grounding electrode conductor helps limit potential differences between the network-powered broadband communications circuits and other metallic systems.


In installations where the network-powered communications cable enters the building, the shield shall begrounded in accordance with 830.100, and metallic members of the cable not used for communications orpowering shall be grounded in accordance with 830.100 or interrupted by an insulating joint or equivalentdevice. The grounding or interruption shall be as close as practicable to the point of entrance.

(B) Terminating Outside of the Building.

In installations where the network-powered communications cable is terminated outside of the building, theshield shall be grounded in accordance with 830.100, and metallic members of the cable not used forcommunications or powering shall be grounded in accordance with 830.100 or interrupted by an insulatingjoint or equivalent device. The grounding or interruption shall be as close as practicable to the point ofattachment of the NIU.


830.100 Cable, Network Interface Unit, and Primary Protector Bonding and Grounding.

Network interface units containing protectors, NIUs with metallic enclosures, primary protectors, and themetallic members of the network-powered broadband communications cable that are intended to bebonded or grounded shall be connected as specified in 830.100(A) through 830.100(D).


(1) Insulation.


(2) Material.


(3) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG and shall havea current-carrying capacity not less than that of the grounded metallic member(s) and protectedconductor(s) of the network-powered broadband communications cable. The bonding conductor orgrounding electrode conductor shall not be required to exceed 6 AWG.


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(4) Length.



Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximumbonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate communicationsground rod meeting the minimum dimensional criteria of 830.100(B)(3)(2) shall be driven, and thegrounding electrode conductor shall be connected to the communications ground rod in accordance with830.100(C). The communications ground rod shall be bonded to the power grounding electrode systemin accordance with 830.100(D).





(B) Electrode.

The bonding conductor or grounding electrode conductor shall be connected in accordance with830.100(B)(1), (B)(2), or (B)(3).



Informational Note: See Informational Note Figure 805.100(B)(1) for an illustration of the applicationof the bonding conductor in buildings and structures equipped with an intersystem bondingtermination.


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Informational Note: See Informational Note Informational Note Figure 805.100(B)(2) for anillustration of the application of the bonding conductor in buildings and structures not equipped withan intersystem bonding termination or terminating block providing access to the building groundingelectrode system.

For purposes of this section, the mobile home service equipment or the mobile home disconnectingmeans, as described in 830.93, shall be considered accessible.




(2) If the building or structure served has no intersystem bonding termination or has no grounding means,as described in 830.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes describedin 250.52(A)(7) and (A)(8), or to a ground rod or pipe not less than 1.5 m (5 ft) in length and 12.7 mm(1⁄2 in.) in diameter, driven, where practicable, into permanently damp earth and separated fromlightning conductors as covered in 805.53 and at least 1.8 m (6 ft) from electrodes of other systems.Steam, hot water pipes, or lightning-protection system conductors shall not be employed as groundingelectrodes for protectors, NIUs with integral protection, grounded metal members, NIUs with metallicenclosures, and other equipment.




A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between the network-powered broadband communications system grounding electrode and the power grounding electrodesystem at the building or structure served where separate electrodes are used.


Informational Note No. 1: See 250.60 for use of a connection to a lightning protection system.




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(A) Grounding.

Grounding shall comply with 830.106(A)(1) or (A)(2).

(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall ofthe mobile home it serves, the network-powered broadband communications cable shield, network-powered broadband communications cable metallic members not used for communications orpowering, network interface unit, and primary protector grounding terminal shall be connected to agrounding electrode conductor or grounding electrode in accordance with 830.100(B)(3).

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 andlocated within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the network-poweredbroadband communications cable shield, network-powered broadband communications cable metallicmembers not used for communications or powering, network interface unit, and primary protectorgrounding terminal shall be connected to a grounding electrode in accordance with 830.100(B)(3).

(B) Bonding.

The network-powered broadband communications cable grounding terminal, network interface unitgrounding terminal, if present, and primary protector grounding terminal shall be bonded together with acopper bonding conductor not smaller than 12 AWG. The network-powered broadband communicationscable grounding terminal, network interface unit grounding terminal, primary protector grounding terminal,or the grounding electrode shall be bonded to the metal frame or available grounding terminal of themobile home with a copper bonding conductor not smaller than 12 AWG under any of the followingconditions:




830.110 Raceways, Cable Routing Assemblies, and Cable Trays for Network-Powered BroadbandCommunications Cables.


Low-power network-powered broadband communications cables shall be permitted to be installed in anyraceway that complies with either 830.110(A)(1) or (A)(2). Medium-power network-powered broadbandcommunications cables shall be permitted to be installed in any raceway that complies with 830.110(A)(1).


Low- and medium-power network-powered broadband communications cables shall be permitted to beinstalled in any raceway included in Chapter 3. The raceways shall be installed in accordance with therequirements of Chapter 3.


Low-power network-powered broadband communications cables shall be permitted to be installed inplenum communications raceways, riser communications raceways, and general-purpose communicationsraceways, selected in accordance with Table 805.154(b) , listed in accordance with 805.182, and installedin accordance with 805.113 and 362.24 through 362.56, where the requirements applicable to electricalnonmetallic tubing apply.

(3) Innerduct for Low-Power Network-Powered Broadband Communications Cables.

Listed plenum communications raceways, listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805.154(b) shall be permitted to beinstalled as innerducts in any type of listed raceway permitted in Chapter 3.

(B) Raceway Fill for Network-Powered Broadband Communications Cables.

Raceway fill for network-powered broadband communications cables shall comply with either830.100(B)(1) or (B)(2).

(1) Low-Power Network-Powered Broadband Communications Cables.

The raceway fill requirements of Chapters 3 and 9 shall not apply to low-power network-poweredbroadband communications cables.

(2) Medium-Power Network-Powered Broadband Communications Cables.

Where medium-power network-powered broadband communications cables are installed in a raceway, theraceway fill requirements of Chapters 3 and 9 shall apply.


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Low-power network-powered broadband communications cables shall be permitted to be installed inplenum cable routing assemblies, riser cable routing assemblies, and general-purpose cable routingassemblies selected in accordance with Table 805.154(c) , listed in accordance with 805.182, and installedin accordance with 805.110(C) and 805.113.

(D) Cable Trays.

Network-powered broadband communications cables shall be permitted to be installed in metal or listednonmetallic cable tray systems.

830.113 Installation of Network-Powered Broadband Communications Cables.

Installation of network-powered broadband communications cables shall comply with 830.113(A) through(I). Installation of raceways and cable routing assemblies shall comply with 830.110.

(A) Listing.

Network-powered broadband communications cables installed in buildings shall be listed.



(1) Up to 1.22 m (4 ft) of Type BLP

(2) Types BLP, BMR, BLR, BM, BL, and BLX installed in raceways that are installed in compliance with300.22(B)




(1) Type BLP

(2) Type BLP installed in plenum communications raceways

(3) Type BLP installed in plenum cable routing assemblies

(4) Type BLP supported by open metal cable tray systems

(5) Types BLP, BMR, BLR, BM, BL, and BLX installed in raceways that are installed in compliance with300.22(C)

(6) Types BLP, BMR, BLR, BM, BL, and BLX supported by solid-bottom metal cable trays with solid metalcovers in other spaces used for environmental air (plenums) as described in 300.22(C)

(7) Types BLP, BLR, BM, BL, and BLX installed in plenum communications raceways, risercommunications raceways, or general-purpose communications raceways supported by solid bottommetal cable trays with solid metal covers in other spaces used for environmental air (plenums) asdescribed in 300.22(C)



The following cables shall be permitted in vertical runs penetrating one or more floors and in vertical runsin a shaft:

(1) Types BLP, BMR, and BLR

(2) Types BLP and BLR installed in the following:







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The following cables and innerducts shall be permitted in a metal raceway in a riser with firestops at eachfloor:

(1) Types BLP, BMR, BLR, BM, BL, and BLX

(2) Types BLP, BLR, and BL installed in the following:


















(1) Types BLP, BMR, BLR, BM, BL, and BLX less than 10 mm (3⁄8 in.) in diameter









(H) Cable Trays.


(1) Types BLP, BMR, BLR, BM, and BL






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(I) Other Building Locations.

The following cables shall be permitted to be installed in building locations other than those covered in830.113(B) through (H):


(2) Types BLP, BMR, BLR, BM, BL, and BLX installed in raceways recognized in Chapter 3








(4) Type BLX less than 10 mm (3⁄8 in.) in diameter in one- and two-family dwellings

(5) Types BMU and BLU entering the building from outside and run in rigid metal conduit (RMC) orintermediate metal conduit (IMC) where the conduit is connected by a bonding conductor or groundingelectrode conductor in accordance with 830.100(B)

Informational Note: This provision limits the length of Type BLX cable to 15 m (50 ft), while830.90(B) requires that the primary protector, or NIU with integral protection, be located asclose as practicable to the point at which the cable enters the building. Therefore, ininstallations requiring a primary protector, or NIU with integral protection, Type BLX cable maynot be permitted to extend 15 m (50 ft) into the building if it is practicable to place the primaryprotector closer than 15 m (50 ft) to the entrance point.

(6) A maximum length of 15 m (50 ft), within the building, of Type BLX cable entering the building fromoutside and terminating at an NIU or a primary protection location

830.133 Installation of Network-Powered Broadband Communications Cables and Equipment.

Cable and equipment installations within buildings shall comply with 830.133(A)and (B), as applicable.

(A) Separation of Conductors.


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(1) In Raceways, Cable Trays, Boxes, Enclosures, and Cable Routing Assemblies.

(a) Low- and Medium-Power Network-Powered Broadband Communications Circuit Cables. Low- andmedium-power network-powered broadband communications cables shall be permitted in the sameraceway, cable tray, box, enclosure, or cable routing assembly.

(b) Low-Power Network-Powered Broadband Communications Circuit Cables with Other Circuits.Low-power network-powered broadband communications cables shall be permitted in the same raceway,cable tray, box, enclosure, or cable routing assembly with jacketed cables of any of the following circuits:

(1) Class 2 and Class 3 remote-control, signaling, and power-limited circuits in compliance with Parts Iand III of Article 725





(c) Medium-Power Network-Powered Broadband Communications Circuit Cables with Optical FiberCables and Other Communications Cables. Medium-power network-powered broadband communicationscables shall not be permitted in the same raceway, cable tray, box, enclosure, or cable routing assemblywith conductors of any of the following circuits:


(2) Conductive optical fiber cables in compliance with Parts I and V of Article 770


(d) Medium-Power Network-Powered Broadband Communications Circuit Cables with Other Circuits.Medium-power network-powered broadband communications cables shall not be permitted in the sameraceway, cable tray, box, enclosure, or cable routing assembly with conductors of any of the followingcircuits:

(1) Class 2 and Class 3 remote-control, signaling, and power-limited circuits in compliance with Parts Iand III of Article 725


(e) Electric Light, Power, Class 1, Non–Powered Broadband Communications Circuit Cables.Network-powered broadband communications cable shall not be placed in any raceway, cable tray,compartment, outlet box, junction box, or similar fittings with conductors of electric light, power, Class 1, ornon–power-limited fire alarm circuit cables.

Exception No. 1: Where all of the conductors of electric light, power, Class 1, non–power-limited firealarm circuits are separated from all of the network-powered broadband communications cables by apermanent barrier or listed divider.

Exception No. 2: Power circuit conductors in outlet boxes, junction boxes, or similar fittings orcompartments where such conductors are introduced solely for power supply to the network-poweredbroadband communications system distribution equipment. The power circuit conductors shall be routedwithin the enclosure to maintain a minimum 6 mm (1⁄4 in.) separation from network-powered broadbandcommunications cables.


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Network-powered broadband communications cable shall be separated at least 50 mm (2 in.) fromconductors of any electric light, power, Class 1, and non–power-limited fire alarm circuits.

Exception No. 1: Separation shall not be required where: (1) all of the conductors of electric light, power,Class 1, and non–power-limited fire alarm circuits are in a raceway, or in metal-sheathed, metal-clad,nonmetallic-sheathed, Type AC, or Type UF cables, or (2) all of the network-powered broadbandcommunications cables are encased in a raceway.

Exception No. 2: Separation shall not be required where the network-powered broadbandcommunications cables are permanently separated from the conductors of electric light, power, Class 1,and non–power-limited fire alarm circuits by a continuous and firmly fixed nonconductor, such asporcelain tubes or flexible tubing, in addition to the insulation on the wire.

(B) Support of Network-Powered Broadband Communications Cables.

Raceways shall be used for their intended purpose. Network-powered broadband communications cablesshall not be strapped, taped, or attached by any means to the exterior of any conduit or raceway as ameans of support.


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830.154 Applications of Network-Powered Broadband Communications System Cables.


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Permitted and nonpermitted applications of listed network-powered broadband communications systemcables shall be as indicated in Table 830.154(a). The permitted applications shall be subject to theinstallation requirements of 830.40, 830.110, and 830.113. The substitutions for network-poweredbroadband system cables listed in Table 830.154(b) shall be permitted.

Table 830.154(a) Applications of Listed Network-Powered Broadband Cables in Buildings

Applications

Listed Network-Powered BroadbandCable Types

BLP BLR BL BMR BM BLXBMU,BLU

Inducts specifically fabricatedfor environmental air asdescribed in 300.22(B)

In fabricated ducts asdescribed in 300.22(B)

Y* N N N N N N

In metal raceway thatcomplies with 300.22(B)

Y* Y* Y* Y* Y* Y* N


In other spaces used forenvironmental air asdescribed in 300.22(C)

Y* N N N N N N

In metal raceway thatcomplies with 300.22(C)

Y* Y* Y* Y* Y* Y* N


Y* N N N N N N


Y* N N N N N N

Supported by open metalcable trays

Y* N N N N N N

Supported by solid-bottommetal cable trays with solidmetal covers

Y* Y* Y* Y* Y* Y* N

In risers

In vertical runs Y* Y* N Y* N N N

In metal raceways Y* Y* Y* Y* Y* Y* N

In fireproof shafts Y* Y* Y* Y* Y* Y* N


Y* Y* N N N N N


Y* Y* N N N N N

In riser communicationsraceways

Y* Y* N N N N N

In riser cable routingassemblies

Y* Y* N N N N N

In one- and two-familydwellings

Y* Y* Y* Y* Y* Y* N

Within buildings in other thanair-handling spaces and risers

General Y* Y* Y* Y* Y* Y* N


Y* Y* Y* Y* Y* Y* N

Supported by cable trays Y* Y* Y* Y* Y* N N

In rigid metal conduit (RMC)and intermediate metalconduit (IMC)

Y* Y* Y* Y* Y* Y* Y*


Y* Y* Y* Y* Y* Y* N


Y* Y* Y* N N N N


Y* Y* Y* N N N N


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Applications

Listed Network-Powered BroadbandCable Types



Y* Y* Y* N N N N


Y* Y* Y* N N N N

In general-purposecommunications raceways

Y* Y* Y* N N N N

In general-purpose cablerouting assemblies

Y* Y* Y* N N N N


Informational Note No. 1: Part V of Article 830 covers installation methods within buildings. This tablecovers the applications of listed network-powered broadband communications cables in buildings. Thedefinition of Point of Entrance is in 830.2.

Informational Note No. 2: For information on the restrictions to the installation of network-poweredbroadband communications cables in ducts specifically fabricated for environmental air, see 830.113(B).

Table 830.154(b) Cable Substitutions

Cable Type Permitted Cable Substitutions

BM BMR

BLP CMP, CL3P

BLR CMP, CL3P, CMR, CL3R, BLP, BMR

BL CMP, CMR, CM, CMG, CL3P, CL3R, CL3, BMR, BM, BLP, BLR

BLX CMP, CMR, CM, CMG, CMX, CL3P, CL3R, CL3, CL3X, BMR, BM, BLP, BRP, BL

830.160 Bends.

Bends in network broadband cable shall be made so as not to damage the cable.


830.179 Network-Powered Broadband Communications Equipment and Cables.

Network-powered broadband communications equipment and cables shall be listed and marked inaccordance with 830.179(A) or (B). Network-powered broadband communications cables shall have atemperature rating of not less than 60°C (140°F). The temperature rating shall be marked on the jacket ofnetwork-powered broadband communications cables that have a temperature rating exceeding 60°C(140°F).

Exception No. 1: This listing requirement shall not apply to community antenna television and radiodistribution system coaxial cables that were installed prior to January 1, 2000, in accordance with Article820 and are used for low-power network-powered broadband communications circuits.

Exception No. 2: Substitute cables for network-powered broadband communications cables shall bepermitted as shown in Table 830.154(b).

(A) Network-Powered Broadband Communications Medium-Power Cables.

Network-powered broadband communications medium-power cables shall be factory-assembled cablesconsisting of a jacketed coaxial cable, a jacketed combination of coaxial cable and multiple individualconductors, or a jacketed combination of an optical fiber cable and multiple individual conductors. Theinsulation for the individual conductors shall be rated for 300 volts minimum. Cables intended for outdooruse shall be listed as suitable for the application. Cables shall be marked in accordance with 310.8.


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(1) Type BMR.

Type BMR cables shall be listed as being suitable for use in a vertical run in a shaft or from floor to floorand shall also be listed as having fire-resistant characteristics capable of preventing the carrying of firefrom floor to floor.


(2) Type BM.

Type BM cables shall be listed as being suitable for general-purpose use, with the exception of risers andplenums, and shall also be listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do notspread fire to the top of the tray in the UL Flame Exposure, Vertical Tray Flame Test inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-ReleaseTest for Electrical and Optical-Fiber Cables. The smoke measurements in the test method are notapplicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not toexceed 1.5 m (4 ft 11 in.) when performing the CSA Vertical Flame Test — Cables in Cable Trays,as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.

(3) Type BMU.

Type BMU cables shall be jacketed and listed as being suitable for outdoor underground use.

(B) Network-Powered Broadband Communication Low-Power Cables.

Network-powered broadband communications low-power cables shall be factory-assembled cablesconsisting of a jacketed coaxial cable, a jacketed combination of coaxial cable and multiple individualconductors, or a jacketed combination of an optical fiber cable and multiple individual conductors. Theinsulation for the individual conductors shall be rated for 300 volts minimum. Cables intended for outdooruse shall be listed as suitable for the application. Cables shall be marked in accordance with 310.8.

(1) Type BLP.

Type BLP cables shall be listed as being suitable for use in ducts, plenums, and other spaces used forenvironmental air and shall also be listed as having adequate fire-resistant and low-smoke producingcharacteristics.

Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less, an averageoptical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less whentested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke ofWires and Cables for Use in Air-Handling Spaces.

(2) Type BLR.

Type BLR cables shall be listed as being suitable for use in a vertical run in a shaft, or from floor to floor,and shall also be listed as having fire-resistant characteristics capable of preventing the carrying of firefrom floor to floor.


(3) Type BL.

Type BL cables shall be listed as being suitable for general-purpose use, with the exception of risers andplenums, and shall also be listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do notspread fire to the top of the tray in the UL Flame Exposure, Vertical Tray Flame Test inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-ReleaseTest for Electrical and Optical-Fiber Cables. The smoke measurements in the test method are notapplicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not toexceed 1.5 m (4 ft 11 in.) when performing the CSA Vertical Flame Test — Cables in Cable Trays,as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.


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(4) Type BLX.

Type BLX limited-use cables shall be listed as being suitable for use outside, for use in dwellings, and foruse in raceways and shall also be listed as being resistant to flame spread.

Informational Note: One method of determining that cable is resistant to flame spread is by testingthe cable to VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, Reference Standard forElectrical Wires, Cables and Flexible Cords.

(5) Type BLU.

Type BLU cables shall be jacketed and listed as being suitable for outdoor underground use.



Article 840 Premises-Powered Broadband Communications Systems

Part I. General

840.1 Scope.

This article covers premises-powered broadband communications systems.

Informational Note No. 1: A typical basic system configuration consists of an optical fiber, twistedpair, or coaxial cable to the premises supplying a broadband signal to a network terminal thatconverts the broadband signal into component electrical signals, such as traditional telephone,video, high-speed Internet, and interactive services. Powering for the network terminal and networkdevices is typically accomplished through a premises power supply that might be built into thenetwork terminal or provided as a separate unit. In order to provide communications in the event ofa power interruption, a battery backup unit or an uninterruptible power supply (UPS) is typically partof the powering system.

Informational Note No. 2: See 90.2(B)(4) for installations of premises-powered broadbandcommunications systems that are not covered in this article.

840.2 Definitions.

The definitions in Part I of Article 100, 770.2, 805.2, and 820.2 shall apply. The definitions in this sectionshall apply only within Article 840.

Broadband.

Wide bandwidth data transmission that transports multiple signals, protocols, and traffic types over variousmedia types.



Network Terminal.

A device that converts network-provided signals (optical, electrical, or wireless) into component signals,including voice, audio, video, data, wireless, optical, and interactive services, and is considered a networkdevice on the premises that is connected to a communications service provider and is powered at thepremises.

Premises Communications Circuit.

The circuit that extends voice, audio, video, data, interactive services, telegraph (except radio), andoutside wiring for fire alarm and burglar alarm from the service provider’s network terminal to thecustomer's communications equipment up to and including terminal equipment, such as a telephone, a faxmachine, or an answering machine.

Premises Community Antenna Television (CATV) Circuit.

The circuit that extends community antenna television (CATV) systems for audio, video, data, andinteractive services from the service provider’s network terminal to the appropriate customer equipment.

Premises-Powered.

Using power provided locally from the premises.


Circuits and equipment shall comply with 840.3(A) through (G). Only those sections of Chapters 1 through7 referenced in Article 840 shall apply to premises-powered broadband communications systems.


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Premises-powered broadband communications circuits and equipment installed in a location that isclassified in accordance with 500.5 and 505.5 shall comply with the applicable requirements of Chapter 5.

(B) Cables in Ducts for Dust, Loose Stock, or Vapor Removal.

The requirements of 300.22(A), 770.3(B), 805.3(B), and 820.3(B) shall apply.





(E) Output Circuits.

As appropriate for the services provided, the output circuits derived from the network terminal shall complywith the requirements of the following:


(2) Installations of premises (within buildings) community antenna television and radio distribution circuits— Part V of Article 820



Informational Note: See 725.121 for information on the classification of information technologyequipment circuits.


(F) Other Communications Systems.

As appropriate for the system involved, traditional communications systems shall comply with therequirements of the following:

(1) Communications Circuits — Article 800

(2) Radio and Television Equipment — Article 810

(3) Community Antenna Television and Radio Distribution Systems — Article 820

(4) Network-Powered Broadband Communications Systems — Article 830

(G) Electrical Classification of Data Circuits and Cables.

Sections 725.139(D)(1) and 800.133(A)(1)(b) shall apply to the electrical classification of Class 2 andClass 3 circuits in the same cable with communications circuits.


Access to electrical equipment shall not be denied by an accumulation of premises-powered broadbandcables that prevents removal of panels, including suspended ceiling panels.


The requirements of 770.24, 805.24, and 820.24 shall apply.








840.44 Overhead (Aerial) Optical Fiber Cables.

Overhead (aerial) optical fiber cables containing a non–current-carrying metallic member enteringbuildings shall comply with 770.44(A) and (B).


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Section 800.44 shall apply to overhead (aerial) communications wires and multipair communicationscables.


Section 820.44 shall apply to overhead (aerial) coaxial cables.

840.47 Underground Wires and Cables Entering Buildings.

Underground wires and cables entering buildings shall comply with 840.47(A) through (C).

(A) Optical Fiber Cables.

(1) Class 1 or Non–Power-Limited Fire Alarm Circuits.

Underground conductive optical fiber cables entering buildings with electric light, power, Class 1, or non–power-limited fire alarm circuit conductors in a raceway, handhole enclosure, or manhole shall be locatedin a section separated from such conductors by means of brick, concrete, or tile partitions or by means of asuitable barrier.

(2) Direct-Buried Cables.

Direct-buried conductive optical fiber cables shall be separated by at least 300 mm (12 in.) fromconductors of any electric light, power, or non–power-limited fire alarm circuit conductors or Class 1 circuit.

Exception No. 1: Separation shall not be required where the electric service conductors are installed inraceways or have metal cable armor.

Exception No. 2: Separation shall not be required where the electric light or power branch-circuit orfeeder conductors, non–power-limited fire alarm circuit conductors, or Class 1 circuit conductors areinstalled in a raceway or in metal-sheathed, metal-clad, or Type UF or Type USE cables.

(3) Mechanical Protection.

Direct-buried cable, conduit, or other raceway shall be installed to have a minimum cover of 150 mm(6 in.).

(B) Communications Wires and Cables.

Installations of communications wires and multipair communications cables shall comply with 805.47.

(C) Coaxial Cables.

Installations of coaxial cables shall comply with 820.47.

840.48 Unlisted Wires and Cables Entering Buildings.

Installations of unlisted cables entering buildings shall comply with 840.48(A), (B), or (C), as applicable.


Installations of unlisted optical fiber cables entering buildings shall comply with 770.48.

(B) Communications Wires and Cables.

Installations of unlisted communications wires and unlisted multipair communications cables enteringbuildings shall comply with 805.48.

(C) Coaxial Cables.

Installations of unlisted coaxial cables entering buildings shall comply with 820.48.

840.49 Metallic Entrance Conduit Grounding.

The requirements of 770.49, 805.49, and 820.49 shall apply, as applicable.




840.93 Grounding or Interruption.

Non–current-carrying metallic members of optical fiber cables, communications cables, or coaxial cablesentering buildings or attaching to buildings shall comply with 840.93(A), (B), or (C), respectively.

(A) Non–Current-Carrying Metallic Members of Optical Fiber Cables.

Non–current-carrying metallic members of optical fiber cables entering a building or terminating on theoutside of a building shall comply with 770.93(A) or (B).


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(B) Communications Cables.

The grounding or interruption of the metallic sheath of communications cable shall comply with 805.93.

(C) Coaxial Cables.

Where the network terminal is installed inside or outside of the building, with coaxial cables terminating atthe network terminal, and is either entering, exiting, or attached to the outside of the building, 820.93 shallapply.

840.94 Premises Circuits Leaving the Building.

Where circuits leave the building to power equipment remote to the building or outside the exterior zone ofprotection defined by a 46 m (150 ft) radius rolling sphere, 805.90 and 805.93 shall apply.

Informational Note: See NFPA 780-2017, Standard for the Installation of Lightning ProtectionSystems, for the theory of the term rolling sphere.


840.100 Network Terminal and Cable Grounding.

Grounding required for protection of the network terminal, conductive optical fiber cables, multipaircommunications cables, antenna lead-in conductors, and coaxial cables shall comply with 770.100,805.100, 810.21, or 820.100, as applicable.

840.101 Premises Circuits Not Leaving the Building.

Where the network terminal is served by a nonconductive optical fiber cable, or where any non–current-carrying metallic member of a conductive optical fiber cable is interrupted by an insulating joint orequivalent device, and circuits that terminate at the network terminal are completely contained within thebuilding (i.e., they do not exit the building), 840.101(A), (B), or (C) shall apply, as applicable.

(A) Coaxial Cable Shield Grounding.

The shield of coaxial cable shall be grounded by one of the following:

(1) Any of the methods described in 820.100 or 820.106

(2) A fixed connection to an equipment grounding conductor as described in 250.118

(3) Connection to the network terminal grounding terminal provided that the terminal is connected toground by one of the methods described in 820.100 or 820.106, or to an equipment groundingconductor through a listed grounding device that will retain the ground connection if the networkterminal is unplugged

(B) Communications Circuit Grounding.

Communications circuits shall not be required to be grounded.

(C) Network Terminal Grounding.

The network terminal shall not be required to be grounded unless required by its listing. If the coaxial cableshield is separately grounded as described in 840.101(A)(1) or 840.101(A)(2), the use of a cord and plugfor the connection to the network terminal grounding connection shall be permitted.

Informational Note: Where required to be grounded, a listed device that extends the equipmentgrounding conductor from the receptacle to the network terminal equipment grounding terminal ispermitted. Sizing of the extended equipment grounding conductor is covered in Table 250.122.


Where circuits leave the building to power equipment remote to the building or outside the exterior zone ofprotection defined by a 46 m (150 ft) radius rolling sphere, 805.100 and 805.106 shall apply.



(A) Grounding.



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(1)

Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall of themobile home it serves, the non–current-carrying metallic members of optical fiber cables shall beconnected to a grounding electrode in accordance with 770.106(A)(1). The network terminal, if required tobe grounded, shall be connected to a grounding electrode in accordance with 805.106(A)(1). PremisesCATV circuits shall be grounded in accordance with 820.106(A)(1), unless the network terminal is listed toprovide the grounding path for the shield of the coaxial cable. The grounding electrode shall be bonded inaccordance with 770.106(B).

(2)

Where there is no mobile home disconnecting means grounded in accordance with 250.32 and locatedwithin 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the non–current-carrying metallicmembers of optical fiber cables shall be connected to a grounding electrode in accordance with770.106(A)(2). The network terminal, if required to be grounded, shall be connected to a groundingelectrode in accordance with 805.106(A)(2). Premises CATV circuits shall be grounded in accordance with820.106(A)(2), unless the network terminal is listed to provide the grounding path for the shield of thecoaxial cable. The grounding electrode shall be bonded in accordance with 770.106(B).

(B) Bonding.

The network terminal grounding terminal or grounding electrode shall be connected to the metal frame oravailable grounding terminal of the mobile home with a copper conductor not smaller than 12 AWG underany of the following conditions:

(1)

Where there is no mobile home service equipment or disconnecting means as specified in 840.106(A).

(2)

Where the mobile home is supplied by cord and plug.


840.110 Raceways and Cable Routing Assemblies.

Installations of raceways and cable routing assemblies for premises-powered broadband communicationscables shall comply with 840.110(A)840.110(A), (B), or (C) as applicable.



(B) Multipair Communications Cables.


(C) Coaxial Cables.


840.113 Installation on the Customer Premises Side of the Network Terminal.

Installation of premises communications circuits and premises coaxial circuits shall comply with840.113(A) or (B) as applicable.

(A) Premises Communications Circuits.

Premises communications wires and multipair cables installed in a building from the network terminal shallbe listed in accordance with 805.179, and the installation shall comply with 805.113 and 805.133.

(B) Premises Community Antenna Television (CATV) Circuits.

Premises CATV coaxial cables installed in a building from the network terminal shall be listed inaccordance with 820.179, and the installation shall comply with 820.113 and 820.133.

840.133 Installation of Optical Fibers and Electrical Conductors.


840.154 Applications of Listed Optical Fiber Cables.



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Part VI. Premises Powering of Communications Equipment over Communications Cables

840.160 Powering Circuits.

Communications cables listed in accordance with 805.179, in addition to carrying the communicationscircuit, shall also be permitted to carry circuits for powering communications equipment listed inaccordance with 805.170. The power source shall be listed in accordance with 840.170(G). Installation ofthe listed communications cables shall comply with 725.144 where communications cables are substitutedfor Class 2 and Class 3 cables in accordance with 725.154(A).

Exception: Installing communications cables in compliance with 725.144 shall not be required for listed4-pair communications cables where the rated current does not exceed 0.3 amperes in any conductor24 AWG or larger.

Informational Note: A typical communications cable for this application is a 4-pair cable sometimesreferred to as Category 5e (or higher) LAN cable or balanced twisted pair cable. These types ofcables are often used to provide Ethernet- and Power over Ethernet (PoE)–type services. A largenumber of such powering cables bundled together can cause overheating of the wiring if notcontrolled as described in Table 725.144.

Part VII. Listing Requirements

840.170 Equipment and Cables.

Premises-powered broadband communications systems equipment and cables shall comply with840.170(A) through (H).

(A) Network Terminal.

The network terminal and applicable grounding means shall be listed for application with premises-powered broadband communications systems.

Informational Note No. 1: One way to determine applicable requirements is to refer toANSI/UL 60950-1-2014, Standard for Safety of Information Technology Equipment;ANSI/UL 498A-2015, Current Taps and Adapters; ANSI/UL 467-2013, Grounding and BondingEquipment;or ANSI/UL 62368-1-2014, Audio/Video, Information and Communication TechnologyEquipment – Part 1: Safety Requirements.

Informational Note No. 2: There are no requirements on the network terminal and its groundingmethodologies except for those covered by the listing of the product.

(B) Optical Fiber Cables.

Optical fiber cables shall be listed in accordance with 770.179(A) through (D) and shall be marked inaccordance with Table 770.179.

(C) Communications Equipment.

Communications equipment shall be listed in accordance with 800.170.

(D) Cable Routing Assemblies and Communications Raceways.

Cable routing assemblies and communications raceways shall be listed in accordance with 805.182.

(E) Premises Communications Wires and Cables.

Communications wires and cable shall be listed and marked in accordance with 805.179.

(F) Premises Community Antenna Television (CATV) Circuits.

Premises community antenna television (CATV) coaxial cables connecting to the network terminal shall belisted in accordance with 820.179. Applicable grounding means shall be listed for application withpremises-powered broadband communications systems.


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(G) Power Source.

The power source for circuits intended to provide power over communications cables to remote equipmentshall be limited in accordance with Table 11(B) in Chapter 9 for voltage sources up to 60 V dc and belisted as specified in either of the following:

(1) A power source shall be listed as specified in 725.121(A)(1), (A)(2), (A)(3), or (A)(4). The powersources shall not have the output connections paralleled or otherwise interconnected unless listed forsuch interconnection.

(2) A power source shall be listed as communications equipment for limited-power circuits.

Informational Note: One way to determine applicable requirements is to refer toANSI/UL 60950-1-2014, Standard for Safety of Information Technology Equipment-Safety —Part 1; or ANSI/UL 62368-1-2014, Audio/Video, Information and Communication TechnologyEquipment — Part 1: Safety Requirements. Typically, such circuits are used to interconnectequipment for the purpose of exchanging information (data).

(H) Accessory Equipment.

Communications accessory equipment and/or assemblies shall be listed for application with premises-powered communications systems.

Informational Note: One way to determine applicable requirements is to refer toANSI/UL 1863-2004, Communications-Circuit Accessories.





Art_800_and_805_Final_Submission_180829.docx Article 800 and 805 Changes in Redline

Art_820_Final_Submission_180829.docx Art 820 Changes Redline

Art_830_and_840_Final_Submission_180829.docx Article 830 and 840 Changes Redline


FR 7512 et al. for 805, 820, 830 and 840 were an excellent step in consolidation. However, the FDR has numerous issues introduced because of the comment system, resolution process, and time factors. Considering that the public comment stage should be a version near ready for publication, our concern for our membership and the entirety of those who utilize Chapter 8 is that the published version in NFPA 70-2020 must be as "clean" as the current version. At this time, our membership believes the FDR is perhaps 40% there.

To that end, we at BICSI spent numerous hours working on the FDR content and moving it to the desired vision and end state indicated within the FDR.

While there are many ways to organize material, PC-2000 is an attempt to provide a starting place in what will not be an enviable job for CMP16. The three attached files represent the work product that generated the Public Comments we submitted individually and as listed below:

PC-1510, PC-1529, PC-1541, PC-1545, PC-1549, PC-1554, PC-1560, PC-1562, PC-1570, PC-1575, PC-1586, PC-1588, PC-1594, PC-1597, PC-1603, PC-1609, PC-1614, PC-1622, PC-1624, PC-1626, PC-1628, PC-1633, PC-1648, PC-1650, PC-1651, PC-1652, PC-1653, PC-1654, PC-1655, PC-1660, PC-1661, PC-1663, PC-1667, PC-1669, PC-1670, PC-1673, PC-1674, PC-1679, PC-1684, PC-1686, PC-1687, PC-1688, PC-1689, PC-1691, PC-1692, PC-1693, PC-1695, PC-1697, PC-1698, PC-1700, PC-1702, PC-1703, PC-1707, PC-1708, PC-1709, PC-1710, PC-1711, PC-1712, PC-1714, PC-1800, PC-1801, PC-1802, PC-1803, PC-1804, PC-1805, PC-1806, PC-1807, PC-1808, PC-1812, PC-1813, PC-1814, PC-1817, PC-1818, PC-1819, PC-1821, PC-1822, PC-1823, PC-1825, PC-1826, PC-1835, PC-1836, PC-1837, PC-1839, PC-1840, PC-1841, PC-1843, PC-1860, PC-1868, PC-1874, PC-1880, PC-1901, PC-1902, PC-1906, PC-1913, PC-1916, PC-1919, PC-1921, PC-1923, PC-1924, PC-1926, PC-1930, PC-1994

Related Item

• FR 7512 • FR 7698


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Submitter Full Name: Jeff Silveira

Organization: Bicsi

Street Address:

City:

State:

Zip:


Committee: NEC-P16


I, Jeff Silveira, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that Iacquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similar orderivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enter intothis copyright assignment.

By checking this box I affirm that I am Jeff Silveira, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, uponmy submission of this form, have the same legal force and effect as a handwritten signature


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Original Revised Version Original Revised Version


Formatted: Font: 12 pt, Bold, Not Italic, Font color:Text 2Formatted: Font: 12 pt, Bold, Not Italic, Font color:Text 2Formatted: Font: 12 pt, Bold, Not Italic, Font color:Text 2


Chapter 8 Communications Systems Article 800 General Requirements for Communications Systems Part I. General

800.1 Scope This article covers general requirements for communications systems and applies to communications circuits, community antenna television and radio distribution systems, network-powered broadband communications systems, and premises-powered broadband communications systems. Articles 805, 820, 830, or 840 supplement or modify the requirements in Article 800. , in addition to the specific requirements in Articles 805, 820, 830, and 840.

Informational Note No. 1: See 90.2(B)(4) for installations of circuits and equipment that are not covered.

Informational Note No. 2: For further information for remote control, signaling, and power limited circuits, see Article 725.


800.2 Definitions. The definitions in Part I of Article 100 shall apply.See Part I of Article 100. The definitions in 800.2 shall apply only within Articles 800, 805, 820, 830, and 840. Abandoned Cable. Installed communications cable or CATV type coaxial cable that is not terminated at both ends at a connector or other equipment, and is not identified for future use with a tag.Installed cable that is not terminated as described in 805.2 for communications cable, 820.2 for CATV coaxial cable, or 830.2 for network-powered broadband communications cable and that is not identified for future use with a tag. Block. A square or portion of a city, town, or village enclosed by streets and including the alleys so enclosed, but not any street. Cable. A factory assembly of two or more conductors having an overall covering. Cable Sheath. A covering over the conductor assembly that may include one or more metallic members, strength members, or jackets. Communications Service Provider. An organization, business, or individual that offers communications service to others. Exposed (to Accidental Contact). A circuit in such a position that, in case of failure of supports or insulation, contact with another circuit may result.

Informational Note: See Part I of Article 100 for two other definitions of Exposed: Exposed (as applied to live parts) and Exposed (as applied to wiring methods).

Point of Entrance. The point within a building at which the wire or cable emerges from an external wall or from a concrete floor slab. See 830.2 for additional provisions pertaining to Article 830. Premises. The land and buildings of a user located on the user side of the utility-user network point of demarcation.

800.3 Other Articles. Only those sections of Chapters 1 through 7 referenced in Chapter 8 shall apply to Chapter 8.

(A) Hazardous (Classified) locations. Circuits and equipment installed in a location that is classified in accordance with 500.5 and 505.5 shall comply with the applicable requirements of Chapter 5.

(B) Wiring in Ducts for Dust, Loose Stock, or Vapor Removal. The requirements of 300.22(A) shall apply.

(C) Equipment in Other Space Used for Environmental Air. The requirements of 300.22(C)(3) shall apply.

(D) Installation and Use. The requirements of 110.3(B) shall apply.

(E) Other Communications Systems. As appropriate for the system involved, communications systems shall comply with the requirements of the following:

(1) Communications circuits - Article 805 (2) Radio and television equipment - Article 810 (3) Community antenna television and radio distribution systems - Article 820 (4) Network-powered broadband communications systems - Article 830


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(5) Premises-powered broadband communications systems - Article 840

800.21 Access to Electrical Equipment Behind Panels Designed to Allow Access. Access to electrical equipment shall not be denied by an accumulation of wires and cables that prevents removal of panels, including suspended ceiling panels.

800.24 Mechanical Execution of Work. Circuits and equipment shall be installed in a neat and workmanlike manner. Cables installed exposed on the surface of ceilings and sidewalls shall be supported by the building structure in such a manner that the cable will not be damaged by normal building use. Such cables shall be secured by hardware, including straps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage the cable. The installation shall also conform to 300.4(D) and 300.11. Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in other spaces used for environmental air (plenums) shall be listed as having low smoke and heat release properties in accordance with 805.170(C). See 830.24 and 840.24 for additional provisions pertaining to Articles 830 and 840.

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1-D-2015, Commercial Building Telecommunications Infrastructure Standard; ANSI/TIA-569-0-2018, Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012, Residential Telecommunications Infrastructure Standard; ANSI/TIA-1005-A -2012, Telecommunications Infrastructure Standard for Industrial Premises; ANSI/ TIA-1179-2010 , Healthcare Facility Telecommunications Infrastructure Standard; ANSI/TIA-4966-2014, Telecommunications Infrastructure Standard for Educations/ Facilities; and other ANSI-approved installation standards.

Informational Note No. 2: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems, for discrete combustible components installed in accordance with 300.22 (C).

Informational Note No. 3: Paint, plaster, cleaners, abrasives, corrosive residues, or other contaminants may result in an undetermined alteration of wire and cable properties.

800.25 Abandoned Cables. The accessible portion of abandoned cables shall be removed. Where cables are identified for future use with a tag, the tag shall be of sufficient durability to withstand the environment involved.

800.26 Spread of Fire or Products of Combustion. Installations of cables, communications raceways, cable routing assemblies in hollow spaces, vertical shafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products of combustion will not be substantially increased. Openings around penetrations of cables, communications raceways, and cable routing assemblies through fire-resistant-rated walls, partitions, floors, or ceilings shall be firestopped using approved methods to maintain the fire resistance rating.

Informational Note: Directories of electrical construction materials published by qualified testing laboratories contain many listing installation restrictions necessary to maintain the fire- resistive rating of assemblies where penetrations or openings are made. Building codes also contain restrictions on membrane penetrations on opposite sides of a fire resistance- rated wall assembly. An example is the 600 mm (24 in.) minimum horizontal separation that usually applies between boxes installed on opposite sides of the wait Assistance in complying with 800 .26 can be found in building codes, fire resistance directories, and product listings.

800.27 Temperature Limitation of Wires and Cables. No wire or cable shall be used in such a manner that its operating temperature exceeds that of its rating.


800.44 Overhead (Aerial) Wires and Cables. Overhead (aerial) communications wires and cables, and CATV type coaxial cables entering buildings shall comply with 800.44(A) through 800.44(D).and 805.44 for communications cable, 820.44 for CATV coaxial cable, 830.4 4 for network-powered broadband communications cable, and 840.44 for premises-powered broadband communications systems.

Informational Note: For additional information regarding overhead (aerial) wires and cables, see ANSI C2-2007, National Electrics/ Safety Code, Part 2, Safety Rules for Overhead Lines.

(A) On Poles and In-Span. Where wires and cables and electric light or power conductors are supported by the same pole or are run parallel to each other in-span, the conditions described in 800.44(A)(1) through (A)(34) shall be met.

(1) Relative Location. Where practicable, the wires and cables shall be located below the electric light or power conductors.

(2) Attachment to Cross-Arms. Wires and cables shall not be attached to a cross-arm that carries electric light or power conductors.


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(3) Climbing Space. The climbing space through wires and cables shall comply with the requirements of 225.14(D). (4) Clearance. Supply service drops and sets of overhead service conductors of 0 to 750 volts running above and

parallel to communications, CATV type coaxial service drops shall have a minimum separation of 300 mm (12 in.) at any point in the span, including the point of and at their attachment to the building, provided that the ungrounded conductors are insulated and that a clearance of not less than 1.0 m (40 in.) is maintained between the two services at the pole.

(B) Above Roofs. Communications wires and cables, and CATV type coaxial cables shall have a vertical clearance of not less than 2.5 m (8 ft) from all points of roofs above which they pass.

Exception No. 1: Communications wires and cables, CATV type coaxial cables, and optical fiber cables shall not be required to have a vertical clearance of not less than 2.5 m (8 ft) above auxiliary buildings, such as garages and the like.

Exception No. 2: A reduction in clearance above only the overhanging portion of the roof to not less than 450 mm (18 in.) shall be permitted if (a) not more than 1.2 m (4 ft) of communications service-drop conductors pass above the roof overhang and (b) they are terminated at a through- or above-the-roof raceway or approved support.

Exception No. 3: Where the roof has a slope of not less than 100 mm in 300 mm (4 in. in 12 in.), a reduction in clearance to not less than 900 mm (3 ft) shall be permitted.

Informational Note: For additional information regarding overhead(aerial) wires and cables, see ANSI/IEEE C2-2012, National Electrical Safety Code, Part 2, Safety Rules for Overhead Lines.

(C) On Mast. Overhead (aerial) communications, and CATV type coaxial cables shall be permitted to be attached to an above-the-roof raceway mast that does not enclose or support conductors of electric light or power circuits.

(D) Between Buildings. Communications, and CATV type coaxial cables extending between buildings or structures, and also the supports or attachment fixtures, shall be identified and shall have sufficient strength to withstand the loads to which they might be subjected

Exception: Where a communications cable does not have sufficient strength to be self-supporting, it shall be attached to a supporting messenger wire that, together with the attachment fixtures or supports, has sufficient strength to withstand the loads to which they might be subjected.

800.47 Underground Communications Wires and Cables and CATV Type Coaxial Cables Entering Buildings. Underground communications wires and cables and CATV type coaxial cables in a raceway, handhole enclosure, or manhole containing electric light, power, Class 1, or non- power-limited fire alarm circuit conductors shall be in a section separated from such conductors by means of brick, concrete, or tile partitions or by means of a suitable barrier.

800.48 Unlisted Cables Entering Buildings. Unlisted outside plant cables shall be permitted to be installed in building spaces other than risers, ducts used for environmental air, plenums used for environmental air, and other spaces used for environmental air, where the length of the cable within the building, measured from its point of entrance, does not exceed 15 m (50 ft) and the cable enters the building from the outside and is terminated as specified in 805.48 for communications cable and 820.48 for CATV coaxial cable as applicable. The point of entrance shall be permitted to be extended from the penetration of the external wall or floor slab by continuously enclosing the entrance cables in rigid metal conduit (RMC) or intermediate metal conduit (IMC) to the point of emergence.

800.49 Metal Entrance Conduit Grounding. Metal conduit containing entrance wire or cable shall be connected by a bonding conductor or grounding electrode conductor to the a grounding electrode or the building grounding electrode system in accordance with 800.100(B).

800.53 Separation from Lightning Conductors. Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between communications wires and cables, and CATV type coaxial cables on buildings and lightning conductors.

Informational Note: Specific separation distances may be calculated from the side flash equation in NFPA 780-2017, Standard for the Installation of Lightning Protection Systems.

Part Ill. Protection

800.80 Protection. Protection of communications systems shall comply with Article 805, Part Ill for communications circuits, Article 820, Part


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Ill for community antenna television and radio distribution systems, Article 830, Part Ill for network-powered broadband communications systems, or Article 840, Part Ill for premises-powered broadband communications systems.



(A) Bonding Conductor or Grounding Electrode Conductor. (1) Insulation. The bonding conductor or grounding electrode conductor shall be listed and shall be permitted to be

insulated, covered, or bare. (2) Material. The bonding conductor or grounding electrode conductor shall be copper or other corrosion-resistant

conductive material, stranded or solid. (3) Size. The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. It shall have a

current-carrying capacity not less than the grounded metallic sheath member(s) and protected conductor(s) of the communications cable. The bonding conductor or grounding electrode conductor shall not be required to exceed 6 AWG.

(4) Length. The bonding conductor or grounding electrode conductor shall be as short as practicable. In one - and two-family dwellings, the bonding conductor or grounding electrode conductor shall be as short as practicable, not to exceed 6.0 m (20 ft) in length.

Informational Note: Similar bonding conductor or grounding electrode conductor length limitations applied at apartment buildings and commercial buildings help to reduce voltages that may be developed between the building’s power and communications systems during lightning events.

Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximum bonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate ground rod meeting the minimum dimensional criteria of 800.100(B)(3)(2) or (B)(3)(3) shall be driven, the bonding conductor or grounding electrode conductor shall be connected to the ground rod in accordance with 800.100(C), and the ground rod shall be connected to the power grounding electrode system in accordance with 800.100(D).

(5) Run in Straight Line. The bonding conductor or grounding electrode conductor shall be run in as straight a line as practicable.

(6) Physical Protection. Bonding conductors and grounding electrode conductors shall be protected where exposed to physical damage. Where the bonding conductor or grounding electrode conductor is installed in a metal raceway, both ends of the raceway shall be bonded to the contained conductor or to the same terminal or electrode to which the bonding conductor or grounding electrode conductor is connected.

(B) Electrode. The bonding conductor or grounding electrode conductor shall be connected in accordance with 800.100(B)(1), (B)(2), or (B)(3).

(1) In Buildings or Structures with an lntersystem Bonding Termination. If the building or structure served has an intersystem bonding termination as required by 250.94, the bonding conductor shall be connected to the intersystem bonding termination.

Informational Note: Informational Note Figure 805.100(B)(1) illustrates the connection of the bonding conductor in buildings or structures equipped with an intersystem bonding termination or a terminal block providing access to the building grounding means.

Figure Informational Note Figure 805.100(B)(1) Illustration of a Bonding Conductor in a Communications Installation. (2) In Buildings or Structures with Grounding Means. If an intersystem bonding termination is established, 250.94(A)

shall apply. If the building or structure served has no intersystem bonding termination, the bonding conductor or


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grounding electrode conductor shall be connected to the nearest accessible location on one of the following: (1) The building or structure grounding electrode system as covered in 250.50 (2) The grounded interior metal water piping system, within 1.5 m (5 ft) from its point of entrance to the building, as

covered in 250.52 (3) The power service accessible means external to enclosures using the options identified in 250.94(A), Exception (4) The nonflexible metal power service raceway (5) The service equipment enclosure (6) The grounding electrode conductor or the grounding electrode conductor metal enclosure of the power service (7) The grounding electrode conductor or the grounding electrode of a building or structure disconnecting means

that is connected to a grounding electrode as covered in 250.32

A bonding device intended to provide a termination point for the bonding conductor (intersystem bonding) shall not interfere with the opening or an equipment enclosure. A bonding device shall be mounted on non-removable parts. A bonding device shall not be mounted on a door or cover even if the door or cover is non-removable.

For purposes of this section, the mobile home service equipment or the mobile home disconnecting means located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, or at a mobile home disconnecting means connected to an electrode by a grounding electrode conductor in accordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, as described in 805.90(B), shall be considered accessible.

Informational Note: Informational Note Figure 805.100(B)(2) illustrates the connection of the bonding conductor in buildings or structures not equipped with an intersystem bonding termination or terminal block providing access to the building grounding means.

Figure Informational Note Figure 805.100(B)(2) Illustration of a Grounding Electrode Conductor in a Communications Installation.

(3) In Buildings or Structures Without an lntersystem Bonding Termination or Grounding Means. If the building or

structure served has no intersystem bonding termination or grounding means, as described in 800.100(B)(2), the grounding electrode conductor shall be connected to one of the following: (1) To any one of the individual grounding electrodes described in 250.52(A)(1), (A)(2), (A)(3), or (A)(4) (2) If the building or structure served has no intersystem bonding termination or grounding means, as described in

800.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes described in 250.52(A)(5), (A)(7), and (A)(8)

(3) For communications circuits or network-powered broadband communications systems, to a ground rod or pipe not less than 1.5 m (5 ft) in length and 12.7 mm (0.5 in.) in diameter, driven, where practicable, into permanently damp earth and separated from lightning protection system conductors, as covered in 805.53, and at least 1.8 m (6 ft) from electrodes of other systems. Steam, hot water pipes, or lightning protection system conductors shall not be employed as grounding electrodes for bonding conductors or grounding electrode conductors.

(C) Electrode Connection. Connections to grounding electrodes shall comply with 250.70.

(D) Bonding of Electrodes. A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between the grounding electrode and power grounding electrode system at the building or structure served where separate electrodes are used.



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Informational Note No. 2: Bonding together of all separate electrodes limits potential differences between them and between their associated wiring systems.


(A) Grounding. Grounding shall comply with 800.106(A)(1) and 800.106(A)(2).

(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the primary protector grounding terminal, the coaxial cable shield ground, or surge arrester grounding terminal shall be connected to a grounding electrode conductor or grounding electrode in accordance with 800.100(B)(3).

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the primary protector grounding terminal, the coaxial cable shield ground, or surge arrester grounding terminal shall be connected to a grounding electrode in accordance with 800.100(B)(3).

(B) Bonding. As applicable or present, the primary protector grounding terminal, the coaxial cable shield grounding terminal, surge arrester grounding terminal, network-powered broadband communications cable grounding terminal, network interface unit grounding terminal, and grounding electrode shall be connected to the metal frame or available grounding terminal of the mobile home with a copper conductor not smaller than 12 AWG under either of the following conditions:

(1) Where there is no mobile home service equipment or disconnecting means as in 800.106(A) (2) Where the mobile home is supplied by cord and plug


800.110 Communications Raceways, and Cable Routing Assemblies. Installation of communications raceways shall comply with 800.110(A) and (B). Installation of cable routing assemblies shall comply with 800.110(C).

(A) Communications Raceways. Plenum communications raceways, riser communications raceways, and general-purpose communications raceways shall be selected in accordance with Table 800.154(a), listed in accordance with 800.182, and installed in accordance with 800.113 and 362.24 through 362.56, where the requirements applicable to electrical nonmetallic tubing (ENT) apply.

(B) Innerduct. Listed plenum communications raceways, listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 800.154(a) shall be permitted to be installed as innerduct in any type of listed raceway permitted in Chapter 3.

(C) Cable Routing Assemblies. Plenum cable routing assemblies, riser cable routing assemblies, and general-purpose cable routing assemblies shall be selected in accordance with Table 800.154(b), listed in accordance with 800.182, and installed in accordance with 800.110(C)(1) and (C)(2) and 800.113.

(1) Horizontal Support. Cable routing assemblies shall be supported where run horizontally at intervals not to exceed 900 mm (3 ft) and at each end or joint, unless listed for other support intervals. In no case shall the distance between supports exceed 3 m (10 ft). Cable routing assemblies shall be permitted to be supported by ladder cable trays.

(2) Vertical Support. Vertical runs of cable routing assemblies shall be supported at intervals not exceeding 1.2 m (4 ft), unless listed for other support intervals, and shall not have more than one joint between supports. Cable routing assemblies shall be permitted to be supported by ladder cable trays.

800.113 Installation of Communications Raceways, and Cable Routing Assemblies. Installation of communications raceways, and cable routing assemblies shall comply with 800.113(A) through (L). Installation of raceways and cable routing assemblies shall also comply with 800.110.

(A) Listing. Communications raceways and cable routing assemblies installed in buildings shall be listed.

(B) Ducts Specifically Fabricated for Environmental Air. Communications raceways and cabling routing assemblies shall not be installed in ducts specifically fabricated for


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environmental air.

(C) Other Spaces Used for Environmental Air (Plenums). Plenum communications raceways and plenum cabling routing assemblies shall be permitted in other spaces used for environmental air as described in 300.22(C).

(D) Risers - Cables, Raceways, and Cable Routing Assemblies in Vertical Runs. Plenum and riser communications raceways and plenum and riser cabling routing assemblies shall be permitted in vertical runs penetrating one or more floor and vertical runs in a shaft.

(E) Risers - Cables and lnnerducts in Metal Raceways. Plenum, riser, and general-purpose communication raceways (innerducts) shall be permitted in metal raceways in a riser having firestops at each floor.


(F) Risers - Cables, Raceways, and Cable Routing Assemblies in Fireproof Shafts. Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in fireproof riser shafts having firestops at each floor.


(G) Risers - One- and Two-Family Dwellings, Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cable routing assemblies shall be permitted in one- and two-family dwellings.

(H) Cable Trays. Plenum, riser, and general-purpose communication raceways shall be permitted to be supported by cable trays:

(I) Distributing Frames and Cross-Connect Arrays. Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in distributing frames and cross-connect arrays.

(J) Other Building Locations. Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in building locations other than the locations covered in 800.113(B) through (I).

(K) Multifamily Dwellings. Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in multifamily dwellings in locations other than the locations covered in 800.113(B) through (G).

(L) One- and Two -Family Dwellings. Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in one- and two-family dwellings in locations other than the locations covered in 800.113(B) through (F).

800.154 Applications of Listed Communications Raceways and Listed Cable Routing Assemblies. Permitted and nonpermitted applications of listed communications raceways and listed cable routing assemblies shall be in accordance with one of the following:

(1) Listed communications raceways as indicated in Table 800.154(a) (2) Listed cable routing assemblies as indicated in Table 800.154(b)

The permitted applications shall be subject to the installation requirements of 800.110 and 800.113.

Table 800.154(a) Applications of Listed Communications Raceways in Buildings

Applications Listed Communications Raceway Type

Plenum Riser General- Purpose

In ducts specifically fabricated for environmental air as described in 300.22(B)


In metal raceway that complies with 300.22(B)

N N N

In other spaces used for environmental air


Y* N N


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(plenums) as described in 300.22(C)

In metal raceway that complies with 300.22(C)

Y* Y* Y*

In plenum cable routing assemblies N N N

Supported by open metal cable trays Y* N N

Supported by solid bottom metal cable trays with solid metal covers

Y* Y* Y*

In risers In vertical runs Y* Y* N







General Y* Y* Y*





Under carpet, modular flooring, and planks

N N N


Y* Y* Y*

In any raceway recognized in Chapter 3 Y* Y* Y*



In general-purpose cable routing assemblies

N N N

Note: An "N" in the table indicates that the communications raceway type shall not be permitted to be installed in the application. A "Y*" indicates that the communications raceway type shall be permitted to be installed in the application, subject to the limitations described in 800.110 and 805.113.

Table 800.154(b) Applications of Listed Cable Routing Assemblies in Buildings





In metal raceway that complies with 300.22(6)

N N N

In other spaces used for environmental air (plenums) as described in 300.22(C)


Y* N N


N N N

In plenum communications raceways N N N

Support ed by open metal cable trays Y* N N


N N N







Within buildings in other General Y* Y* Y*


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than air-handling spaces and risers




Support ed by cable trays Y* Y* Y*


N N N


Y* Y* Y*

In any raceway recognized in Chapter 3 N N N



In general -purpose communications raceways

N N N

Note: An "N" in the table indicates that the cable routing assembly type shall not be permitted to be installed in the application. A "Y*" indicates that the cable routing assembly type shall be permitted to be installed in the application subject to the limitations described in 805 .113.


800.179 Plenum, Riser, General-Purpose and Limited-Use CablesWires and Cables. Wires and cables shall be listed in accordance with 805.179, 820.179,830.179, or 840.170 as applicable. Wires and cables shall Plenum, riser, general-purpose and limited-purpose cables shall be listed in accordance with 800.179(A) through (D) and have a temperature rating of not less than 60°C (140°F). The temperature rating shall be marked on the jacket of cables that have a temperature rating exceeding 60°C (140°F).

(A) Plenum Cables. Type CMP communications plenum cables, Type CATVP community antenna television plenum coaxial cables and Type BLP network-powered broadband communications low-power plenum cables shall be listed as being suitable for use in ducts, plenums, and other spaces used for environmental air and shall also be listed as having adequate fire-resistant and low smoke-producing characteristics.

Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2018, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces.

(B) Riser Cables. Type CMR communications riser cables, Type CATVR community antenna television riser coaxial cables, Type BMR network-powered broadband communications medium-power riser cables and Type BLR network-powered broadband communications low-power riser cables shall be listed as being suitable for use in a vertical run in a shaft or from floor to floor and shall also be listed as having fire-resistant characteristics capable of preventing the carrying of fire from floor to floor.

Informational Note: One method of defining fire-resistant characteristics capable of preventing the carrying of fire from floor to floor is that the cables pass the requirements of ANSI/UL 1666-2011, Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically in Shafts.

(C) General-Purpose Cables. Type CM communications cables, Type CMG general-purpose communications cables Type CATV community antenna television coaxial cables, Type BM network-powered broadband communications medium-power cables and Type BL network-powered broadband communications low-power shall be listed as being suitable for general-purpose use, with the exception of risers and plenums, and shall also be listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do not spread fire to the top of the tray in the "UL Flame Exposure, Vertical Flame Tray Test" in ANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables. The smoke measurements in the test method are not applicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not to exceed 1.5 m (4 ft 11 in.) when performing the CSA "Vertical Flame Test - Cables in Cable Trays”, as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.

(D) Limited-Use Cables. Type CMX limited-use communications cables, Type CATVX limited-use community antenna television coaxial cables and Type BLX limited-use network-powered broadband low-power cables shall be listed as being suitable for use in dwellings and for use in raceway and shall also be listed as being resistant to flame spread.


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Informational Note: One method of determining that cable is resistant to flame spread is by testing the cable to the VW-1 (vertical-wire) flame test in ANS/IUL 1581-2017, Reference Standard for Electrical Wires, Cables and Flexible Cords.


800.180 Grounding Devices. Where bonding or grounding is required, devices used to connect a shield, a sheath, or non-current-carrying metallic members of a cable to a bonding conductor or grounding electrode conductor shall be listed or be part of listed equipment.

800.182 Cable Routing Assemblies and Communications Raceways. Cable routing assemblies and communications raceways shall be listed in accordance with 800.182(A) through (C). Cable routing assemblies shall be marked in accordance with Table 800.182(a). Communications raceways shall be marked in accordance with Table 800.182(b).

Informational Note: For information on listing requirements for both communications raceways and cable routing assemblies, see ANSI/UL 2024-5-2018, Cable Routing Assemblies and Communications Raceways.


Type Marking





Type Marking




(A) Plenum Cable Routing Assemblies and Plenum Communications Raceways. Plenum cable routing assemblies and plenum communications raceways shall be listed as having adequate fire-resistant and low-smoke-producing characteristics.

Informational Note No. 1: One method of defining cable routing assemblies and communications raceways that have adequate fire-resistant and low-smoke-producing characteristics is that they exhibit a maximum flame spread index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84-17a, Standard Test Method for Surface Burning Characteristics of Building Materials, or AN SI/UL 723 -2013, Standard Test Method for Surface Burning Characteristics of Building Materials.

Informational Note No. 2: Another method of defining communications raceways that have adequate fire-resistant and low-smoke-producing characteristics is that they exhibit a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262- 2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces.

Informational Note No. 3: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems, for information on materials exposed to the airflow in ceiling cavity and raised floor plenums.

(B) Riser Cable Routing Assemblies and Riser Communications Raceways. Riser cable routing assemblies and riser communications raceways shall be listed as having adequate fire-resistant characteristics capable of preventing the carrying of fire from floor to floor.

Informational Note: One method of defining fire-resistant characteristics capable of preventing the carrying of fire from floor to floor is that the cable routing assemblies and communications raceways pass the requirements of ANSI/UL 1666-2011, Standard Test for Flame Propagation Height of Electric.al and Optical- Fiber Cable Installed Vertically in Shafts.

(C) General-Purpose Cable Routing Assemblies and General-Purpose Communications Raceways. General-purpose cable routing assemblies and general-purpose communications raceways shall be listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cable routing assemblies and communications raceways do not spread fire to the top of the tray in the UL Flame Exposure, Vertical Flame Tray Test" in ANSI/UL 1685-2011, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables.


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Article 805 Communications Circuits Part I. General

805.1 Scope. This article covers communications circuits and equipment.

Informational Note No. 1: See 90.2(B)(4) for installations of communications circuits and equipment that are not covered.

Informational Note No. 2: For further information for remote-control, signaling and power-limited circuits, see Article 725.


805.2 Definitions. See Part I of Article 100. The definitions in this section shall apply only within Article 805. Abandoned Communications Cable. Installed communications cable that is not terminated at both ends at a connector or other equipment and not identified for future use with a tag. Block. A square or portion of a city, town, or village enclosed by streets and including the alleys so enclosed, but not any street. Cable. A factory assembly of two or more conductors having an overall covering. Cable. A factory assembly of two or more conductors having an overall covering. Cable Sheath. A covering over the conductor assembly that may include one or more metallic members, strength members, or jackets. Communications Circuit. The circuit that electrically extends service from the communications utility or service provider up to and including the customer's communications equipment. Communications Circuit Integrity (Cl) Cable. Cable used in communications systems to ensure continued operation of critical circuits during a specified time under fire conditions. Exposed (to Accidental Contact). A circuit that is in such a position that, in case of failure of supp orts or insulation, contact with another circuit may result.


Point of Entrance. The point within a building at which the communications wire or cable emerges from an external wall or from a concrete floor slab. Premises. The land and buildings of a user located on the user side of the utility-user network point of demarcation. Wire. A factory assembly of one or more insulated conductors without an overall covering.

805.3 Other Articles. Installations of communications circuits and equipment shall comply with 805.3(A) through (GB). Only those sections of Chapters 1 through 7 referenced in Article 805 shall apply to communications circuit s and equipment.

(A) Hazardous (Classified) locations. Communications circuits and equipment installed in a location that is classified in accordance with 500.5 and 505.5 shall comply with the applicable requirements of Chapter 5.




(E) Network-Powered Broadband Communications Systems. Article 830 shall apply to network-powered broadband communications systems.

(F) Premises -Powered Broadband Communications Systems. Article 840 shall apply to premises-powered broadband communications systems.

(A) General Requirements for Communications Systems. Article 800 shall apply to communications circuits unless modified by Article 805.

(GB) Optical Fiber Cable. Where optical fiber cable is used, either in whole or in part, to provide a communications circuit within a building, Article 770 shall apply to the installation of the optical fiber portion of the communications circuit.


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805.18 Installation of Equipment. Equipment electrically connected to a communications network shall be listed in accordance with 805.170.

Exception: This listing requirement shall not apply to test equipment that is intended for temporary connection to a telecommunications network by qualified persons during the course of installation, maintenance, or repair of telecommunications equipment or systems.

805.21 Access to Electrical Equipment Behind Panels Designed to Allow Access. Access to electrical equipment shall not be denied by an accumulation of communications wires and cables that prevents removal of panels, including suspended ceiling panels.

805.24 Mechanical Execution of Work. Communications circuits and equipment shall be installed in a neat and workmanlike manner. Cables installed exposed on the surface of ceilings and sidewalls shall be supported by the building structure in such a manner that the cable will not be damaged by normal building use. Such cables shall be secured by hardware, including straps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage the cable. The installation shall also conform to 300.4(D) and 300.11. Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in other spaces used for environmental air (plenums) shall be listed as having low smoke and heat release properties in accordance with 805.180(C).

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/SICSI 568-2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSl/TIA-568.1 -0 -20 15, Commercial Building Telecommunications Infrastructure Standard, ANSl/TIA -569-0 -20 1 S, Telecommunications Pathways and Spaces; ANSl/TIA -57 0-C -20 12 , Residential Telecommunications Infrastructure Standard; ANSl/TIA -1005-A -20 12, Telecommunication Infrastructure Standard for Industrial Premises; AN SI /TIA -1 179-2010 , Healthcare Facility Telecommunications Infrastructure Standard; ANSl/TIA-4966-2014, Telecommunications Infrastructure Standard for Educational Facilities; and other ANSI-approved installation standards.


Informational Note No. 3: Paint, plaster, cleaners, abrasive, corrosive residues, or other contaminants may result in an undetermined alteration of communications wire and cable properties.

805.25 Abandoned Cables. The accessible portion of abandoned communications cables shall be removed. Where cables are identified for future use with a tag, the tag shall be of sufficient durability to withstand the environment involved.

805.26 Spread of Fire or Products of Combustion. Installations of communications cables, communications raceways, cable routing assemblies in hollow spaces, vertical shafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products of combustion will not be substantially increased. Openings around penetrations of communications cables, communications raceways, and cable routing assemblies through fire-resistant-rated walls, partitions, floors, or ceilings shall be firestopped using approved methods to maintain the fire resistance rating.

Informational Note: Directories of electrical construction materials published by qualified testing laboratories contain many listing installation restrictions necessary to maintain the fire- resistive rating of assemblies where penetrations or openings are made. Building codes also contain restrictions on membrane penetrations on opposite sides of a fire resistance- rated wall assembly. An example is the 600 mm (24 in.) minimum horizontal separation that usually applies between boxes installed on opposite sides of the wall. Assistance in complying with 805.26 can be found in building codes, fire resistance directories, and product listings.



805.44 Overhead (Aerial) Communications Wires and Cables. Overhead (aerial) communications wires and cables entering buildings shall comply with 805.44(A) and (B).

(A) On Poles and In-Span. Where communications wires and cables and electric light or power conductors are supported by the same pole or are run parallel to each other in-span, the conditions described in 805.44(A)(1) through 805.44(A)(4) shall be met.

(1) Relative location. Where practicable, the communications wires and cables shall be located below the electric light or power conductors.

(2) Attachment to Cross-Arms. Communications wires and cables shall not be attached to a cross-arm that carries electric light or power conductors.

(3) Climbing Space. The climbing space through communications wires and cables shall comply with the requirements


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of 225.14(D). (4) Clearance. Supply service drops and sets of overhead service conductors of 0 to 750 volts running above and

parallel to communications service drops shall have a minimum separation of 300 mm (12 in.) at any point in the span, including the point of and at their attachment to the building, provided that the ungrounded conductors are insulated and that a clearance of not less than 1.0 m (40 in.) is maintained between the two services at the pole.

(B) Above Roofs. Communications wires and cables shall have a vertical clearance of not less than 2.5 m (8 ft) from all points of roofs above which they pass.

Exception No. 1: Communications wires and cables shall not be required to have a vertical clearance of not less than 2.5 m (8 ft) above auxiliary buildings, such as garages and the like.

Exception No. 2: A reduction in clearance above only the overhanging portion of the roof to not less than 450 mm (18 in.) shall be permitted if (a) not more than 1.2 m (4 ft) of communications service-drop conductors pass above the roof overhang and (b) they are terminated at a through- or above-the-roof raceway or approved support.


Informational Note: For additional information regarding overhead(aerial) wires and cables, see ANSI/IEEE C2-2012, National Electrical Safety Code, Part 2, Safety Rules for Overhead Lines.

805.47 Underground Communications Wires and Cables Entering Buildings. Underground communications wires and cables entering buildings shall comply with 800.47 and 805.47(A) and (B). The requirements of 310.10(C) shall not apply to communications wires and cables.

(A) Underground Systems with Electric Light, Power, Class 1, or Non- Power-Limited Fire Alarm Circuit Conductors. Underground communications wires and cables in a raceway, handhole enclosure, or manhole containing electric light, power, Class 1, or non- power-limited fire alarm circuit conductors shall be in a section separated from such conductors by means of brick, concrete, or tile partitions or by means of a suitable barrier.

(B) Underground Block Distribution. Where the entire street circuit is run underground and the circuit within the block is placed so as to be free from the likelihood of accidental contact with electric light or power circuits of over 300 volts to ground, the insulation requirements of 805.50(A) and 805.50(C) shall not apply, insulating supports shall not be required for the conductors, and bushings shall not be required where the conductors enter the building.

(C) On Mast. Overhead (aerial) communications cables shall be permitted to be attached to an above-the-roof raceway mast that does not enclose or support conductors of electric light or power circuits.

(D) Between Buildings. Communications cables extending between buildings or structures, and also the supports or attachment fixtures, shall be identified and shall have sufficient strength to withstand the loads to which they might be subjected.

Exception: Where a communications cable does not have sufficient strength to be self-supporting, it shall be attached to a supporting messenger wire that, together with the attachment fixtures or supports, has sufficient strength to withstand the loads to which they might be subjected.

805.48 Unlisted Cables Entering Buildings. Unlisted outside plant communications cables shall be permitted to be installed in building spaces other than risers, ducts used for environmental air, plenums used for environmental air, and other spaces used for environmental air, where the length of the cable within the building, measured from its point of entrance, does not exceed 15 m (50 ft) and the cable enters the building from the outside and is terminated in an enclosure or on a listed primary protector. The point of entrance shall be permitted to be extended from the penetration of the external wall or floor slab by continuously enclosing the entrance cables in rigid metal conduit (RMC) or intermediate metal conduit (IMC) to the point of emergence.

Informational Note No. 1: Splice cases or terminal boxes, both metallic and plastic types, are typically used as enclosures for splicing or terminating telephone cables.

Informational Note No. 2: This section limits the length of unlisted outside plant cable to 15 m (50 ft), while 805.90(B) requires that the primary protector be located as close as practicable to the point a t which the cable enters the building. Therefore, in installations requiring a primary protector, the outside plant cable may not be permitted d to extend 15 m (50 ft) into the building if it is practicable to place the primary protector closer than 15 m (50 ft) to the point of entrance.

805.49 Metal Entrance Conduit Grounding. Metal conduit containing communications entrance wire or cable shall be connected by a bonding conductor or grounding electrode conductor to the building grounding electrode system in accordance with 805.100(B).


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805.50 Circuits Requiring Primary Protectors. Circuits that require primary protectors as provided in 805.90 shall comply with 805.50(A), 805.50(B), and 805.50(C).

(A) Insulation, Wires, and Cables. Communications wires and cables without a metallic shield, running from the last outdoor support to the primary protector, shall be listed in accordance with 805.173.

(B) On Buildings. Communications wires and cables in accordance with 805.50(A) shall be separated at least 100 mm (4 in.) from electric light or power conductors not in a raceway or cable or be permanently separated from conductors of the other systems by a continuous and firmly fixed nonconductor in addition to the insulation on the wires, such as porcelain tubes or flexible tubing. Communications wires and cables in accordance with 805.50(A) exposed to accidental contact with electric light and power conductors operating at over 300 volts to ground and attached to buildings shall be separated from woodwork by being supported on glass, porcelain, or other insulating material.

Exception: Separation from woodwork shall not be required where fuses are omitted as provided for in 805.90(A}(1), or where conductors are used to extend circuits to a building from a cable having a grounded metal sheath.

(C) Entering Buildings. Where a primary protector is installed inside the building, the communications wires and cables shall enter the building either through a noncombustible, nonabsorbent insulating bushing or through a metal raceway. The insulating bushing shall not be required where the entering communications wires and cables (1) are in metal-sheathed cable, (2) pass through masonry, (3) meet the requirements of 805.50(A) and fuses are omitted as provided in 805.90(A)(1), or (4) meet the requirements of 805.50(A) and are used to extend circuits to a building from a cable having a grounded metallic sheath. Raceways or bushings shall slope upward from the outside or, where this cannot be done, drip loops shall be formed in the communications wires and cables immediately before they enter the building. Raceways shall be equipped with an approved service head. More than one communications wire and cable shall be permitted to enter through a single raceway or bushing. Conduits or other metal raceways located ahead of the primary protector shall be grounded.

805.53 Separation from Lightning Conductors. Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between communications wires and cables on buildings and lightning conductors.

Informational Note: Specific separation distances may be calculated from the side flash equation in NFPA 780-2017, Standard for the Installation of Lightning Protection Systems.



(A) Application. A listed primary protector shall be provided on each circuit run partly or entirely in aerial wire or aerial cable not confined within a block. Also, a listed primary protector shall be provided on each circuit, aerial or underground, located within the block containing the building served so as to be exposed to accidental contact with electric light or power conductors operating at over 300 volts to ground. In addition, where there exists a lightning exposure, each interbuilding circuit on a premises shall be protected by a listed primary protector at each end of the interbuilding circuit. Installation of primary protectors shall also comply with 110.3(B).

Informational Note No. 1: On a circuit not exposed to accidental contact with power conductors, providing a listed primary protector in accordance with this article helps protect against other hazards, such as lightning and above-normal voltages induced by fault currents on power circuits in proximity to the communications circuit.

Informational Note No. 2: Interbuilding circuits are considered to have a lightning exposure unless one or more of the following conditions exist:

(1) Circuits in large metropolitan areas where buildings are close together and sufficiently high to intercept lightning.

(2) lnterbuilding cable runs of 42m (140 ft) or less, directly buried or in underground conduit where a continuous metallic cable shield or a continuous metal conduit containing the cable is connected to each building grounding electrode system.

(3) Areas having an average of five or fewer thunderstorm days per year and earth resistivity of less than 100 ohm-meters. Such areas are found along the Pacific coast

(1) Fuseless Primary Protectors. Fuseless-type primary protectors shall be permitted under any of the conditions given in (A)(1)(a) through (A)(1)(e). (a) Where conductors enter a building through a cable with grounded metallic sheath member(s) and where the

conductors in the cable safely fuse on all currents greater than the current-carrying capacity of the primary protector and of the primary protector bonding conductor or grounding electrode conductor

b) Where insulated conductors in accordance with 805.50(A) are used to extend circuit s to a building from a cable


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with an effectively grounded metallic sheath member(s) and where the conductors in the cable or cable stub, or the connection s between the insulated conductors and the plant expos ed to accidental contact with electric light or power conductors opera tin g at greater than 300 volts to ground, safely fuse on all currents greater than the current-carrying capacity of the primary protector, or the associated insulated conductors and of the primary protector bon din g conductor or grounding electrode conductor

(c) Where insula ted conductors in accordance with 805.50(A) or (B) are used to extend circuits to a building from other than a cable with metallic sheath member(s), where (1) the primary protector is listed as being suitable for this purpose for application with circuits extending from other than a cable with metallic sheath member s, and (2) the connection s of the insulated conductors to the plant exposed to accidental con tac t with electric light or power conductors operating at greater than 300 volts to ground or the conductors of the plant exposed to accidental contact with electric light or power conductors operating at gr eater than 300 volts to ground safely fuse on all currents greater than the current-carrying capacity of the primary protector, or associated insulated conductors and of the primary protector bonding conductor or grounding electrode conductor

(d) Where insulated conductors in accordance with 805.50(A) are used to extend circuit s aerially to a building from a buried or underground circuit that is unexposed to accidental contact with electric light or power conductors operating at gr eater than 300 volts to ground

(e) Where insulated conductors in accordance with 805.50(A) are used to extend circuit s to a building from cable with an effectively ground ed metallic sheath member(s), and where (1) the combination of the primary protector and insulated conductors is listed as being suitable for this purpose for application with circuit s extending from a cable with an effectively grounded metallic sheath member(s), and (2) the insulated conductors safely fuse on all currents greater than the current-carrying capacity of the primary protector and of the primary protector bonding conductor or grounding electrode conductor

Informational Note: Section 9 of ANSI/IEEE C2-2012, National Electrics! Safety Code provides an example of methods of protective grounding that can achieve effective grounding of Communications cable sheaths for cables from which communications circuits are extended.

(2) Fused Primary Protectors. Where the requirements listed under 805.90(A)(1)(a) through (A)(1)(e) are not met, fused-type primary protectors shall be used. Fused-type primary protectors shall consist of an arrester connected between each line conductor and ground, a fuse in series with each line conductor, and an appropriate mounting arrangement. Primary protector terminals shall be marked to indicate line, instrument, and ground, as applicable.

(B) Location. The primary protector shall be located in, on, or immediately adjacent to the structure or building served and as close as practicable to the point of entrance. For purposes of this section, primary protectors located at mobile home service equipment within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, or at a mobile home disconnecting means connected to an electrode by a grounding electrode conductor in accordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, shall be considered to meet the requirements of this section.

Informational Note: Selecting a primary protector location to achieve the shortest practicable primary protector bonding conductor or grounding electrode conductor helps limit potential differences between communications circuits and other metallic systems.

(C) Hazardous (Classified) Locations. The primary protector shall not be located in any hazardous (classified) location s, as defined in 500.5 and 505.5, or in the vicinity of easily ignitable material.


(D) Secondary Protectors. Where a secondary protector is installed in series with the indoor communications wire and cable between the primary protector and the equipment, it shall be listed for the purpose in accordance with 805.170(B).

Informational Note: Secondary protectors on circuits exposed to accidental contact with electric light or power conductors operating at greater than 300 volts to ground are not intended for use without primary protectors.

805.93 Grounding, Bonding, or Interruption of Non- current- Carrying Metallic Sheath Members of Communications Cables. Communications cables entering the building or terminating on the outside of the building shall comply with 805.93(A) or (B).

(A) Entering Buildings. In installations where the communications cable enters a building, the metallic sheath members of the cable shall be grounded or bonded as specified in 805.100 or interrupted by an insulating joint or equivalent device. The grounding, bonding, or interruption shall be as close as practicable to the point of entrance.

(B) Terminating on the Outside of Buildings. In installations where the communications cable is terminated on the outside of the building, the metallic sheath members


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of the cable shall be grounded or bonded as specified in 805.100 or interrupted by an insulating joint or equivalent device. The grounding, bonding, or interruption shall be as close as practicable to the point of termination of the cable.


805.100 Cable and Primary Protec tor Bonding and Grounding. The primary protector and the metallic member(s) of the cable sheath shall be bonded or grounded as specified in 805800.100(A) through 805.100(D).




current-carrying capacity not less than the grounded metallic sheath member(s) and protected conductor(s) of the communications cable. The bonding conductor or grounding electrode conductor shall not be required to exceed 6AWG.

(4) Length. The primary protector bonding conductor or grounding electrode conductor shall be as short as practicable. In one- and two-family dwellings, the primary protector bonding conductor or grounding electrode conductor shall be as short as practicable, not to exceed 6.0 m (20 ft) in length.


Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximum primary protector bonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate communications ground rod meeting the minimum dimensional criteria of 805.100(B)(3)(2) shall be driven, the primary protector shall be connected to the communications ground rod in accordance with 805.100(C), and the communications ground rod shall be connected to the power grounding electrode system in accordance with 805.100(D).



(B) Electrode. The bonding conductor or grounding electrode conductor shall be connected in accordance with 805.100(B)(1), 805.100(B)(2), or 805.100(B)(3).

(1) In Buildings or Structures with an lntersystem Bonding Termination. If the building or structure served has an intersystem bonding termination as required by 250.94, the bonding conductor shall be connected to the intersystem bonding termination.

Informational Note: Informational Note Figure 805.100(B)(1) illustrates the connection of the bonding conductor in buildings or structures equipped with an intersystem bonding termination or a terminal block providing access to the building grounding means.


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Figure Informational Note Figure 805.100(B)(1) Illustration of a Bonding Conductor in a Communications Installation. (2) In Buildings or Structures with Grounding Means. If an intersystem bonding termination is established, 250.94(A)

shall apply. If the building or structure served has no intersystem bonding termination, the bonding conductor or grounding

electrode conductor shall be connected to the nearest accessible location on one of the following: (1) The building or structure grounding electrode system as covered in 250.50 (2) The grounded interior metal water piping system, within 1.5 m (5 ft) from its point of entrance to the building, as

covered in 250.52 (3) The power service accessible means external to enclosures using the options identified in 250.94(A,) Exception (4) The nonflexible metal power service raceway (5) The service equipment enclosure (6) The grounding electrode conductor or the grounding electrode conductor metal enclosure of the power service (7) The grounding electrode conductor or the grounding electrode of a building or structure disconnecting means


A bonding device intended to provide a termination point for the bonding conductor (intersystem bonding) shall not interfere with the opening of an equipment enclosure. A bonding device shall be mounted on nonremovable parts. A bonding device shall not be mounted on a door or cover even if the door or cover is nonremovable.

Informational Note: Informational Note Figure 805.100(B)(2) illustrates the connection of the bonding conductor in buildings or structures not equipped with an intersystem bonding termination or terminal block providing access to the building grounding means.

Figure Informational Note Figure 805.100(B)(2) Illustration of a Grounding Electrode Conductor in a Communications

Installation. For purposes of this section, the mobile home service equipment or the mobile home disconnecting means, as described in 805.90(B), shall be considered accessible.

(3) In Buildings or Structures Without an lntersystem Bonding Termination or Grounding Means. If the building or structure served has no intersystem bonding termination or grounding means, as described in 805.100(B)(2), the grounding electrode conductor shall be connected to either of the following: (1) To any one of the individual grounding electrodes described in 250.52(A)(1), (A)(2), (A)(3), or (A)(4). (2) If the building or structure served has no intersystem bonding termination or has no grounding means, as

described in 805.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes described in 250.52(A)(7) and (A)(8) or to a ground rod or pipe not less than 1.5 m (5 ft) in length and 12.7 mm (½ in.) in diameter, driven, where practicable, into permanently damp earth and separated from lightning protection system conductors as covered in 805.53 and at least 1.8 m (6 ft) from electrodes of other systems. Steam, hot waterpipes, or lightning protection system conductors shall not be employed as electrodes for protectors and grounded metallic members.

(C) Electrode Connect ion. Connections to grounding electrodes shall comply with 250.70.

(D) Bonding of Electrodes. A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between the communications grounding electrode and power grounding electrode system at the building or structure served where separate electrodes are used.


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(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the primary protector grounding terminal shall be connected to a grounding electrode conductor or grounding electrode in accordance with 805.100(B)(3).

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the primary protector grounding terminal shall be connected to a grounding electrode in accordance with 805.100(B) (3).

(B) Bonding. The primary protector grounding terminal or grounding electrode shall be connected to the metal frame or available grounding terminal of the mobile home with a copper conductor not smaller than 12 AWG under either of the following conditions:




(A) Types of Raceways. Communications wires and cables shall be permitted to be installed in any raceway that complies with either 805.110(A)(1) or (A)(2).

(1) Raceways Recognized in Chapter 3. Communications wires and cables shall be permitted to be installed in any raceway included in Chapter 3. The raceways shall be installed in accordance with the requirements of Chapter 3.

(2) Communications Raceways. Communications wires and cables shall be permitted to be installed in plenum listed communications raceways that comply with 800.110(A)., riser communications raceways, and general-purpose communications raceways selected in accordance with Table 805.154(b), listed in accordance with 805.182, and installed in accordance with 805.113 and 362.24 through 362.56, where the requirements applicable to electrical nonmetallic tubing (ENT) apply.

(3) Innerduct for Communications Wires and Cables. Listed plenum communications raceways, listed riser communications raceways, and listed general-purpose communications raceways that comply with 800.110(B).selected in accordance with Table 805.154(b) shall be permitted to be installed as innerduct in any type of listed raceway permitted in Chapter 3.

(B) Raceway Fill for Communications Wires and Cables. The raceway fill requirements of Chapters 3 and 9 shall not apply to communications wires and cables.

(C) Cable Routing Assemblies. Communications wires and cables shall be permitted to be installed in plenum listed cable routing assemblies that comply with 800.110(C)., riser cable routing assemblies, and general-purpose cable routing assemblies selected in accordance with Table 805.154(c), listed in accordance with 805.182, and installed in accordance with 805.110(C)(1) and (C)(2) and 805.113.

(1) Horizontal Support. Cable routing assemblies shall be supported where run horizontally at intervals not to exceed 900 mm (3 ft) and at each end or joint, unless listed for other support intervals. In no case shall the distance between supports exceed 3 m (10 ft).

(2) Vertical Support. Vertical runs of cable routing assemblies shall be supported at intervals not exceeding 1.2 m (4 ft), unless listed for other support intervals, and shall not have more than one joint between supports.

(D) Cable Trays. Communications cables and communications raceways shall be permitted to be installed in metal or listed nonmetallic cable tray systems. Ladder cable trays shall be permitted to support cable routing assemblies.

805.113 Installation of Communications Wires and, Cables and Raceways, and Cable Routing


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Assemblies. Installation of communications wires and, cables and raceways, and cable routing assemblies shall comply with 805.113(A) through (L). Installation of raceways and cable routing assemblies shall also comply with 805.110.

(A) Listing. Communications wires and , communications cables, communications raceways, and cable routing assemblies installed in buildings shall be listed.

Exception: Communications cables that are installed in compliance with 805800.48 shall not be required to be listed.

(B) Ducts Specifically Fabricated for Environmental Air. The following wires and cables shall be permitted in ducts specifically fabricated for environ mental air as described in 300.22(B) if they are directly associated with the air distribution system:

(1) Up to 1.22 m (4 ft) of Type CMP cable (2) Types CMP, CMR, CMG, CM, and CMX cables and communications wires installed in raceways that are installed in

compliance with 300.22(B)

Informational Note: For information on fire protection of wiring installed in fabricated ducts, see NFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems.

(C) Other Spaces Used for Environmental Air (Plenums). The following wires, and cables, raceways, and cable routing assemblies shall be permitted in other spaces used for environmental air as described in 300.22(C):

(1) Type CMP cables (2) Plenum communications raceways (3) Plenum cable routing assemblies (4) Type CMP cables installed in plenum communications raceways (5) Type CMP cables installed in plenum cable routing assemblies (6) Type CMP cables and plenum communications raceways supported by open metal cable tray systems (7) Types CMP, CMR, CMG, CM, and CMX cables and communications wires installed in raceways that are installed in

compliance with 300.22(C) (8) Types CMP, CMR, CMG, CM, and CMX cables, plenum communications raceways, riser communications

raceways, and general-purpose communications raceways supported by solid bottom metal cable trays with solid metal covers in other spaces used for environmental air (plenums) as described in 300.22(C)

(9) Types CMP, CMR, CMG, CM, and CMX cables installed in plenum communications raceways, riser communications raceways, and general -purpose communications raceways supported by solid bottom metal cable trays with solid metal covers in other spaces used for environmental air (plenums) as described in 300.22(C)

Informational Note: For information on fire protection of wiring installed in other spaces used for environmental air, see NFPA 90A-2018, Standard for the Installation Air-Conditioning and Ventilating Systems.

(D) Risers - Cables, Raceways, and Cable Routing Assemblies in Vertical Runs. The following cables, raceways, and cable routing assemblies shall be permitted in vertical runs penetrating one or more floors and in vertical runs in a shaft:

(1) Types CMP and CMR cables (2) Plenum and riser communications raceways (3) Plenum and riser cable routing assemblies (4) Types CMP and CMR cables installed in:

a. Plenum communications raceways b. Riser communications raceways c. Plenum cable routing assemblies d. Riser cable routing assemblies


(E) Risers - Cables and lnnerducts in Metal Raceways. The following cables and innerducts shall be permitted in metal raceways in a riser having firestops at each floor:

(1) Types CMP, CMR, CMG, CM, and CMX cables (2) Plenum, riser, and general-purpose communications raceways (3) Types CMP, CMR, CMG, CM, and CMX cables installed in:

a. Plenum communications raceways (innerduct) b. Riser Communications raceways (innerduct) c. General-purpose communications raceways (innerduct)


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(F) Risers - Cables, Raceways, and Cable Routing Assemblies in Fireproof Shafts. The following cables, raceways, and cable routing assemblies shall be permitted to be installed in fireproof riser shafts having firestops at each floor:

(1) Types CMP, CMR, CMG, CM, and CMX cables (2) Plenum, riser, and general-purpose communications raceways (3) Plenum, riser, and general-purpose cable routing assemblies (4) Types CMP, CMR, CMG, and CM cables installed in:

a. Plenum communications raceways b. Riser Communications raceways c. General-purpose communications raceways d. Plenum cable routing assemblies e. Riser cable routing assemblies f. General-purpose cable routing assemblies


(G) Risers - One- and Two-Family Dwellings, The following cables, raceways, and cable routing assemblies shall be permitted in one- and two-family dwellings:

(1) Types CMP, CMR, CMG, and CM cables (2) Type CMX cables less than 6 mm (0.25 in.) in diameter (3) Plenum, riser, and general-purpose communications raceways (4) Plenum, riser, and general-purpose cable routing assemblies (5) Types CMP, CMR, CMG, and CM cables installed in:

a. Plenum communications raceways b. Riser Communications raceways c. General-purpose communications raceways d. Plenum cable routing assemblies e. Riser cable routing assemblies f. General-purpose cable routing assemblies

(H) Cable Trays. The following wires and, cables, and raceways shall be permitted to be supported by cable trays:

(1) Types CMP, CMR, CMG, and CM cables (2) Plenum, riser, and general-purpose communications raceways (3) Communications wires and Types CMP, CMR, CMG, and CM cables installed in:

a. Plenum communications raceways b. Riser communications raceways c. General-purpose communications raceways

(I) Distributing Frames and Cross-Connect Arrays. The following wires and, cables, raceways, and cable routing assemblies shall be permitted to be installed in distributing frames and cross-connect arrays:

(1) Types CMP, CMR, CMG, and CM cables and communications wires (2) Plenum, riser, and general-purpose communications raceways (3) Plenum, riser, and general-purpose cable routing assemblies (4) Communications wires and Types CMP, CMR, CMG, and CM cables installed in:

a. Plenum communications raceways b. Riser communications raceways c. General-purpose communications raceways d. Plenum cable routing assemblies e. Riser cable routing assemblies f. General-purpose cable routing assemblies

(J) Other Building Locations. The following wires and, cables, raceways, and cable routing assemblies shall be permitted to be installed in building locations other than the locations covered in 805.113(B) through (I)



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(2) A maximum of 3 m (10 ft) of exposed Type CMX cable in nonconcealed spaces (3) Plenum, riser, and general-purpose communications raceways (4) Plenum, riser, and general-purpose cable routing assemblies (5) Communications wires and Types CMP, CMR, CMG, and CM cables installed in the following:


(6) Types CMP, CMR, CMG, and CM cables installed in the following: a. Plenum cable routing assemblies b. Riser cable routing assemblies c. General-purpose cable routing assemblies

(7) Communications wires and Types CMP, CMR, CMG, CM, and CMX cables installed in raceways recognized in Chapter 3

(8) Type CMUC under-carpet communications wires and cables installed under carpet, modular flooring, and planks

(K) Multifamily Dwellings. The following wires and cables, raceways, and cable routing assemblies shall be permitted to be installed in multifamily dwellings in locations other than the locations covered in 805.113(B) through (G):

(1) Types CMP, CMR, CMG, and CM cables (2) Type CMX cables less than 6 mm (0.25 in.) in diameter in nonconcealed spaces (3) Plenum, riser, and general-purpose communications raceways (4) Plenum, riser, and general-purpose cable routing assemblies (5) Communications wires and Types CMP, CMR, CMG, and CM cables installed in the following:




(8) Type CMUC under-carpet communications wires and cables installed under carpet, modular flooring, and planks

(L) One- and Two -Family Dwellings. The following wires and, cables, raceways, and cable routing assemblies shall be permitted to be installed in one- and two-family dwellings in locations other than the locations covered in 805.113(B) through (F):

(1) Types CMP, CMR, CMG, and CM cables (2) Type CMX cables less than 6 mm (0.25 in.) in diameter (3) Plenum, riser, and general-purpose communications raceways (4) Plenum, riser, and general-purpose cable routing assemblies (5) Communications wires and Types CMP, CMR, CMG, and CM cables installed in the following:




(8) Type CMUC under-carp et communications wires and cables installed under carpet, modular flooring, and planks (9) Hybrid power and communications cable listed in accordance with 805.179(J)

805.133 Installation of Communications Wires, Cables, and Equipment. Communications wires and cables from the protector to the equipment or, where no protector is required, communications


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wires and cables attached to the outside or inside of the building shall comply with 805.133(A) and 805.133(B)

(A) Separation from Other Conductors. (1) In Raceways, Cable Trays, Boxes, Cables, Enclosures, and Cable Routing Assemblies.

(a) Other Circuits. Communications cables shall be permitted in the same raceway, cable tray, box, enclosure, or cable routing assembly with cables of any of the following: (1) Class 2 and Class 3 remote-control, signaling, and power-limited circuits in compliance with Article 645 or

Parts I and Ill of Article 725 (2) Power-limited fire alarm systems in compliance with Parts I and Ill of Article 760 (3) Nonconductive and conductive optical fiber cables in compliance with Parts I and V of Article 770 (4) Community antenna television and radio distribution systems in compliance with Parts I and V of Article 820 (5) Low -power network-powered broadband communications circuits in compliance with Parts I and V of Article

830 (b) Class 2 and Class 3 Circuits. Class 1 circuits shall not be run in the same cable with Communications circuits.

Class 2 and Class 3 circuit conductors shall be permitted in the same listed communications cable with Communications circuits.

(c) Electric Light, Power, Class 1, Non- Power-Limited Fire Alarm, and Medium-Power Network-Powered Broadband Communications Circuits in Raceways, Compartments, and Boxes. Communications conductors shall not be placed in any raceway, compartment, outlet box, junction box, or similar fitting with conductors of electric light, power, Class 1, non- power-limited fire alarm, or medium-power network-powered broadband communications circuits.

Exception No. 1: Section 805. 133(A)(1)(c) shall not apply if all of the conductors of electric light, power, Class 1, non- power-limited fire alarm, and medium-power network-powered broadband communications circuits are separated from all of the conductors of communications circuits by a permanent barrier or listed divider.

Exception No. 2: Power conductors in outlet boxes, junction boxes, or similar fittings or compartments where such conductors are introduced solely for power supply to communications equipment. The power circuit conductors shall be routed within the enclosure to maintain a minimum of 6 mm (1/4 in.) separation from the communications circuit conductors.


(2) Other Applications. Communications wires and cables shall be separated at least 50 mm (2 in.) from conductors of any electric light, power, Class 1, non- power-limited fire alarm, or medium-power network-powered broadband Communications circuits.

Exception No. 1: Section 805. 133(A)(2) shall not apply where either (1) all of the conductors of the electric light, power, Class 1, non- power-limited fire alarm, and medium-power network-powered broadband communications circuits are in a raceway or in metal-sheathed, metal-clad, nonmetallic-sheathed, Type AC, or Type UF cables, or (2) all of the conductors of Communications circuits are encased in raceway.

Exception No. 2: Section 805.133(A)(2) shall not apply where the communications wires and cables are permanently separated from the conductors of electric light, power, Class 1, non- power-limited fire alarm, and medium-power network-powered broadband communications circuits by a continuous and firmly fixed nonconductor, such as porcelain tubes or flexible tubing, in addition to the insulation on the wire.

(B) Support of Communications Wires and Cables. Raceways shall be used for their intended purpose. Communications wires and cables shall not be strapped, taped, or attached by any means to the exterior of any raceway as a means of support.

Exception: Overhead (aerial) spans of communications wires and cables shall be permitted to be attached to the exterior of a raceway-type mast intended for the attachment and support of such wires and cables.

805.154 Applications of Listed Communications Wires and, Cables, and Raceways, and Listed Cable Routing Assemblies. Permitted and nonpermitted applications of listed communications wires, and cables, and raceways, and listed cable routing assemblies, shall be in accordance with Table 805.154(a).one of the following:

(1) Listed communications wires and cables as indicated in Table 805.154(a) (2) Listed communications raceways as indicated in Table 805.154(b) (3) Listed cable routing assemblies as indicated in Table 805.154(c)

The permitted applications shall be subject to the installation requirements of 805.110 and 805.113. The substitutions for communications cables listed in Table 805.154(db) and illustrated in Figure 805.154 shall be permitted.


Applications Wire and Cable Type


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CMP CMR CMG CM

CMX CMUC Hybrid Power and Communications

Cables

Communications Wires


In fabricated ducts Y* N N N N N N


Y* Y* Y* Y* N N Y*



Y* N N N N N N


Y* Y* Y* Y* N N Y*

In plenum communications raceways

Y* N N N N N N

In plenum cable routing assemblies Y* N N N N N N

Supported by open metal cable trays

Y* N N N N N N


Y* Y* Y* Y* N N N

In risers In vertical runs Y* Y* N N N N N

In metal raceways Y* Y* Y* Y* N N N

In fireproof shafts Y* Y* Y* Y* N N N


Y* Y* N N N N N

In plenum cable routing assemblies Y* Y* N N N N N

In riser communications raceways Y* Y* N N N N N

In riser cable routing assemblies Y* Y* N N N N N

In one - and two -family dwellings Y* Y* Y* Y* N Y* N



In one- and two-family dwellings Y* Y* Y* Y* Y* Y* N

In multifamily dwellings Y* Y* Y* Y* Y* N N

In nonconcealed spaces Y* Y* Y* Y* Y* N N

Supported by cable trays Y* Y* Y* N N N N


N N N N Y* N N

In distributing frames and cross- connect arrays

Y* Y* Y* N N N Y*

In any raceway recognized in Chapter 3

Y* Y* Y* Y* N N Y*


Y* Y* Y* N N N Y*

In plenum cable routing assemblies Y* Y* Y* N N N Y*

In riser communication s raceways Y* Y* Y* N N N Y*

In riser cable routing assemblies Y* Y* Y* N N N Y*

In general-purpose communications raceways

Y* Y* Y* N N N Y*


Y* Y* Y* N N N Y*

Note: An "N" in the table indicates that the cable type shall not be permitted to be installed in the application. A "Y*” indicates that the cable type shall be permitted to be installed in the application subject to the limitations described in 805.113.

Informational Note No. 1: Part V of Article 800 covers installation methods within buildings. This table covers the applications of listed communications wires, cables, and raceways in buildings. See the definition of Point of Entrance in 805.2.

Informational Note No. 2: For information on the restrictions to the installation of communications cables in fabricated ducts, see 805.113(B).


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N N N



Y* N N


Y* Y* Y*




Y* Y* Y*








General Y* Y* Y*






N N N


Y* Y* Y*





N N N

Note: An "N" in the table indicates that the communications raceway type shall not be permitted to be installed in the application. A "Y*" indicates that the communications raceway type shall be permitted to be installed in the application, subject to the limitations described in 805.110 and 805.113.


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In metal raceway that complies with 300.22(6)

N N N



Y* N N


N N N


Support ed by open metal cable trays Y* N N


N N N








General Y* Y* Y*




Support ed by cable trays Y* Y* Y*


N N N


Y* Y* Y*




In general -purpose communications raceways

N N N

Note: An "N" in the table indicates that the cable routing assembly type shall not be permitted to be installed in the application. A "Y*" indicates that the cable routing assembly type shall be permitted to be installed in the application subject to the limitations described in 805 .113.

Table 805.154(db) Cable Substitutions

Cable Type Marking

CMR CMP

CMG, CM CMP, CMR




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805.156 Dwelling Unit Communications Outlet. For new construction, a minimum of one communications outlet shall be installed within the dwelling in a readily accessible area and cabled to the service provider demarcation point


805.170 Equipment. Communications equipment shall be listed as being suitable for electrical connection to a communications network.

Informational Note No. 1: One way to determine applicable requirements to refer to ANSI/UL60950-1-2014, Standard for Safety of Information Technology Equipment; ANSI/UL 1863- 2012, Standard for Safety Communications Circuit Accessories, or ANSI/UL 62368 -1-2014, Audio/Video, Information and Communication Technology Equipment- Part 1: Safety Requirements.

Informational Note No.2: Additional information regarding voltages, current, and power allowed on communications circuits can be found in ANSI/ATIS0600337-2016, Requirements for Maximum Voltage, Current and Power Levels Used in Communications Transport Circuits.

(A) Primary Protectors. The primary protector shall consist of an arrester connected between each line conductor and ground in an appropriate mounting. Primary protector terminals shall be marked to indicate line and ground as applicable.

Informational Note: One way to determine applicable requirements for a listed primary protector is to refer to ANSI/UL 497-2013, Standard for Protectors for Paired Conductor Communications Circuits.

(B) Secondary Protectors. The secondary protector shall be listed as suitable to provide means to safely limit currents to less than the current-carrying capacity of listed indoor communications wire and cable, listed telephone set line cords, and listed communications terminal equipment having ports for external wire line communications circuits. Any overvoltage protection, arresters, or grounding connection shall be connected on the equipment terminals side of the secondary protector current- limiting means.

Informational Note: One way to determine applicable requirements fora listed secondary protector is to refer to ANSI/UL497A-2012, Standard for Secondary Protectors for Communications Circuits

(C) Plenum Grade Cable Ties. Cable ties intended for use in other space used for environmental air (plenums) shall be listed as having low smoke and heat release properties.

Informational Note: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems, and ANSI/UL 2043-2013, Standard for Safety Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces, for information on listing discrete products as having low smoke and heat release properties


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805.173 Drop Wire and Cable. Communications wires and cables without a metallic shield. running from the last outdoor support to the primary protector, shall be listed as being suitable for the purpose and shall have current-carrying capacity as specified in 805 .90(A)(1)(b) or (A)(1)(c).

805.179 Communications Wires and Cables. Communications wires and cables shall be listed in accordance with 805.179(A) through (J) and marked in accordance with Table 805.179. Conductors in communications cables, other than in a coaxial cable, shall be copper. Communications wires and cables shall have a voltage rating of not less than 300 volts. The insulation for the individual conductors, other than the outer conductor of a coaxial cable, shall be rated for 300 volts minimum. The cable voltage rating shall not be marked on the cable or on the under-carpet communications wire. Communications wires and cables shall have a temperature rating of not less than 60°C (140°F). The temperature rating shall be marked on the jacket of communications cables that have a temperature rating exceeding 60°C (140°F).

Exception: Voltage markings shall be permitted where the cable has multiple listings and voltage marking is required for one or more of the listings.

Informational Note: Voltage markings on cables may be misinterpreted to suggest that the cables may be suitable for Class 1, electric light, and power applications.

Table 805. 179 Cable Markings

Type Marking



CMG Communications general -purpose cable

CM Communications general -purpose cable


CMUC Under-carpet Communications wire and cable


(A) Type CMP. Type CMP communications plenum cables shall be listed in accordance with 800.179(A). as being suitable for use in ducts, plenums, and other spaces used for environmental air and shall also be listed as having adequate fire-resistant and low smoke-producing characteristics.

Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0. 50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2018, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces.

(B) Type CMR. Type CMR communications riser cables shall be listed in accordance with 800.179(B). as being suitable for use in a vertical run in a shaft or from floor to floor and shall also be listed as having fire-resistant characteristics capable of preventing the carrying of fire from floor to floor.


(C) Type CMG. Type CMG general-purpose communications cables shall be listed in accordance with 800.179(C). as being suitable for general-purpose communications use, with the exception of risers and plenums, and shall also be listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is for the damage (char length) not to exceed 1.5 m (4 ft 11 in.) when performing the CSA "Vertical Flame Test - Cables in Cable Trays”, as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.

(D) Type CM. Type CM communications cables shall be listed in accordance with 800.179(C). as being suitable for general-purpose communications use, with the exception of risers and plenums, and shall also be


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listed as being resistant to the spread of fire.



(E) Type CMX. Type CMX limited-use communications cables shall be listed in accordance with 800.179(D).as being suitable for use in dwellings and for use in raceway and shall also be listed as being resistant to flame spread.


(F) Type CMUC Undercarpet Wires and Cables. Type CMUC undercarpet communications wires and cables shall be listed as being suitable for undercarpet use and shall also be listed as being resistant to flame spread.


(G) Circuit Integrity (Cl) Cable or Electrical Circuit Protective System. Cables that are used for survivability of critical circuits under fire conditions shall be listed and meet either 805.179(G)(1) or 805.179(G)(2) as follows:

Informational Note: The listing organization provides information for circuit integrity (Cl) cable and electrical circuit protective systems, including installation requirements required to maintain the fire rating.

(1) Circuit Integrity (Cl) Cables. Circuit integrity (Cl) cables specified in 805.179(A) through (D), and used for survivability of critical circuits, shall have an additional classification using the suffix "Cl." In order to maintain its listed fire rating, circuit integrity (Cl) cable shall only be installed in free air.

Informational Note: One method of defining circuit integrity (Cl) cable is by establishing a minimum 2-hour fire resistance rating for the cable when tested in accordance with ANSI/UL 2196- 2006, Standard for Tests of Fire-Resistive Cable.

(2) Fire-Resistive Cables. Cables specified in 805.179(A) through (D) and 805.179(G)(1), that are part of an electrical circuit protective system, shall be fire-resistive cable identified with the protective system number on the product, or on the smallest unit container in which the product is packaged, and shall be installed in accordance with the listing of the protective system.

Informational Note No. 1: One method of defining an electrical circuit protective system is by establishing a minimum 2-hour fire resistance rating for the system when tested in accordance with UL Subject 1724, Outline of Investigation for Fire Tests for Electrics/ Circuit Protective Systems.

Informational Note No. 2: The listing organization provides information for electrical circuit protective systems (FHIT), including installation requirements for maintaining the fire rating.

(H) Types CMP-LP, CMR-LP, CMG-LP, and CM-LP Limited Power (LP) Cables. Types CMP-LP, CMR-LP, CMG-LP, and CM-LP communications limited power cables shall be listed as suitable for carrying power and data up to a specified current limit for each conductor without exceeding the temperature rating of the cable where the cable is installed in cable bundles in free air or installed within a raceway, cable tray, or cable routing assembly. The cables shall be marked with the suffix "-LP(XXA)", where XX designates the current limit in amperes per conductor.

Informational Note: An example of the marking on a communications cable with an LP rating is "CMP-LP (0.6A) (75°C) 23AWG 4 pair”, which indicates that it is a 4-pair plenum cable with 23 AWG conductors, a temperature rating of 75°C, and a current limit of 0.6 ampere.

(I) Communications Wires. Communications wires, such as distributing frame wire and jumper wire, shall be listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do not spread fire to the top of the tray in the "UL Flame Exposure, Vertical Flame Tray Test' in ANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables. The smoke measurement s in the test method are not applicable.

Informational Note: One method of defining resistant to the spread of fire is for the damage (char length) not to exceed 1. 5 m (4 ft 11 in.) when performing the CSA "Vertical Flame Test - Cables in Cable Trays," as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.

(J) Hybrid Power and Communications Cables. Listed hybrid power and communications cables shall be permitted where the power cable is a listed Type NM or NM-B, conforming to Part Ill of Article 334, and the communications cable is a listed Type CM, the jackets on the listed NM or NM-B, and listed CM cables are rated for 600 volts minimum, and the hybrid cable is listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do not spread fire to the top of the tray in the" UL Flame Exposure, Vertical Flame Tray Test in ANSII\UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables. The smoke measurements in the test method are not applicable.

Informational Note: One method of defining resistant to the spread of fire is for the damage (char length) not to exceed 1.5 m (4 ft 11 in.) when


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performing the CSA "Vertical Flame Test - Cables in Cable Trays," as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.

805.180 Grounding Devices. Where bonding or grounding is required, devices used to connect a shield, a sheath, or non- current-carrying metallic members of a cable to a bonding conductor or grounding electrode conductor shall be listed or be part of listed equipment.

805.182 Cable Routing Assemblies and Communications Raceways. Cable routing assemblies and communications raceways shall be listed in accordance with 805.182(A) through (CJ. Cable routing assemblies shall be marked in accordance with Table 805.182(a). Communications raceways shall be marked in accordance with Table 805.182(b).



Type Marking





Type Marking













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Chapter 8 Communications Systems

Article 820 Community Antenna Television and Radio Distribution Systems

Part I. General

820.1 Scope This article covers coaxial cable distribution of radio frequency signals typically employed in community antenna television (CATV) systems..

Informational Note No. 1: See 90.2(B)(4) for installations of CATV and radio distribution systems that are not covered.

820.2 Definitions. See Part I of Article 100 and 800.2. The definitions in this section shall apply only within Article 820. Abandoned Coaxial Cable. Installed coaxial cable that is not terminated at equipment other than a coaxial connector and not identified for future use with a tag. Exposed (to Accidental Contact). A circuit in such a position that, in case of failure of supports or insulation, contact with another circuit may result.


Point of Entrance. The point within a building at which the coaxial cable emerges from an external wall or from a concrete floor slab. Premises. The land and buildings of a user located on the user side of the utility-user network point of demarcation.

820.3 Other Articles. Circuits and equipment shall comply with 820.3(A) through (IC). Only those sections of Chapters 1 through 7 referenced in Article 820 shall apply to community antenna television and radio distribution systems.

(A) General Requirements for Coaxial Cables and Community Antenna Television and Radio Distribution Systems. Article 800 shall apply to coaxial cables and community antenna television and radio distribution systems unless modified by Article 820.(A) Hazardous (Classified) locations. CATV equipment installed in a location that is classified in accordance with 500.5 and 505.5 shall comply with the applicable requirements of Chapter 5. (B) Wiring in Ducts for Dust, loose Stock, or Vapor Removal. The requirements of 300.22(A) shall apply. (C) Equipment in Other Space Used for Environmental Air. The requirements of 300.22(C)(3) shall apply. (D) Installation and Use. The requirements of 110.3(B) shall apply.

(EB) Installations of Conductive and Nonconductive Optical Fiber Cables. The requirements of Article 770 shall apply.

(F) Communications Circuits .


(G)Network-Powered Broadband Communications Systems.


(H) Premises-Powered Broadband Communications Systems. The requirements of Article 840 shall apply.

(IC) Alternate Wiring Methods. The wiring methods of Article 830 shall be permitted to substitute for the wiring methods of Article 820.

Informational Note: Use of Article830 wiring methods will facilitate the upgrading of Artcile820 installations to network-powered broadband applications.

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820.15 Power Limitations. Coaxial cable shall be permitted to deliver power to equipment that is directly associated with the radio frequency distribution system if the voltage is not over 60 volts and if the current is supplied by a transformer or other device that has power-limiting characteristics. Power shall be blocked from premises devices on the network that are not intended to be powered via the coaxial cable.

820.21 Access to Electrical Equipment Behind Panels Designed to Allow Access. Access to electrical equipment shall not be denied by an accumulation of coaxial cables that prevents removal of panels, including suspended ceiling panels.

820.24 Mechanical Execution of Work. Community television and radio distribution systems shall be installed in a neat and workmanlike manner. Coaxial cables installed exposed on the surface of ceiling and sidewalls shall be supported by the building structure in such a manner that the cables will not be damaged by normal building use. Such cables shall be secured by hardware including straps, staples, cable ties, hangers, or similar fittings designed and installed so as not to damage the cable. The installation shall also conform to 300.4(D) and 300.11. Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in other spaces used for environmental air (plenums) shall be listed as having low smoke and heat release properties in accordance with 805.170(C). See 830.24 and 840.24 for additional provisions pertaining to Articles 830 and 840.

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/SICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1 - 0 -2015, Commercial Building Telecommunications Infrastructure Standard; ANSIITIA-569-0 -2018, Telecommunications Pathways a and Spaces; ANSI/TIA -5 70-C -20 12, Residential Telecommunications Infrastructure Standard; ANSI/TIA -1005-A -2012, Telecommunications Infrastructure Standard for Industrial Premises; ANSI/ TIA-1179-2010 , Healthcare Facility Telecommunications Infrastructure Standard; ANSI/TIA-4966-2014, Telecommunications Infrastructure Standard for Educations/ Facilities; and other ANSI-approved installation standards.



820.25 Abandoned Cables. The accessible portion of abandoned coaxial cables shall be removed. Where cables are identified for future use with a tag, the tag shall be of sufficient durability to withstand the environment involved.

820.26 Spread of Fire or Products of Combustion. Installations of coaxial cables and communications raceways in hollow spaces, vertical shafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products of combustion will not be substantially increased. Openings around penetrations of cables, communications raceways, and cable routing assemblies through fire-resistant-rated walls, partitions, floors, or ceilings shall be firestopped using approved methods to maintain the fire resistance rating.




820.44 Overhead (Aerial) Coaxial Cables. Overhead (aerial) coaxial cables prior to the point of grounding, as specified in 820.93, shall comply with 800.44 and 820.44(A) through 820.44(EA).

(A) On Poles and In-Span. Where coaxial cables and electric light or power conductors are supported by the same pole or are run parallel to each other in-span, the conditions described in 820.44(A)(1) through (A)(4) shall be met.


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(1) Relative location. Where practicable, the coaxial cables shall be located below the electric light or power conductors. (2) Attachment to Cross-Arms. Coaxial cables shall not be attached to a cross-arm that carries electric light or power

conductors. (3) Climbing Space. The climbing space through coaxial cables shall comply with the requirements of 225.14(D). (4) Clearance: Lead-in or overhead (aerial) -drop coaxial cables from a pole or other support, including the point of

initial attachment to a building or structure, shall be kept away from electric light, power, Class 1, or non- power-limited fire alarm circuit conductors so as to avoid the possibility of accidental contact.

Exception: Where proximity to electric light, power, Class 1, or non- power-limited fire alarm circuit conductors cannot be avoided, the installation shall provide clearances of not less than 300 mm (12 in.) from electric light, power, Class 1, or non- power-limited fire alarm circuit conductors. The clearance requirement shall apply at all points along the drop, and it shall increase to 1.0 m (40 in.) at the pole.

(B) Above Roofs. Coaxial cables shall have a vertical clearance of not less than 2.5 m (8 ft) from all points of roofs above which they pass.

Exception No. 1: Vertical clearance requirements shall not apply to auxiliary buildings such as garages and the like.

Exception No. 2: A reduction in clearance above only the overhanging portion of the roof to not less than 450 mm (18 in.) shall be permitted if (1) not more than 1.2 m (4 ft) of communications service drop conductors pass above the roof overhang, and (2) they are terminated at a raceway mast or other approved support.


(C) On Mast. Overhead (aerial) coaxial cables shall be permitted to be attached to an above-the-roof raceway mast that does not enclose or support conductors of electric light or power circuits.

(D) Between Buildings. Coaxial cables extending between buildings or structures, and also the supports or attachment fixtures, shall be identified and shall have sufficient strength to withstand the loads to which they might be subjected.

Exception: Where a coaxial cable does not have sufficient strength to be self-supporting, it shall be attached to a supporting messenger cable that, together with the attachment fixtures or supports, shall be acceptable for the purpose and shall have sufficient strength to withstand the loads to which they may be subjected.

(EA) On Buildings. Where attached to buildings, coaxial cables shall be securely fastened in such a manner that they will be separated from other conductors in accordance with 820.44(EA)(1), 820.44(EA)(2), and 820.44(EA)(3). (1) Electric Light or Power. The coaxial cable shall have a separation of at least 100 mm (4 in.) from electric light, power, Class 1, or non- power-limited fire alarm circuit conductors not in raceway or cable, or shall be permanently separated from conductors of the other system by a continuous and firmly fixed nonconductor in addition to the insulation on the wires. (2) Other Communications Systems. Coaxial cable shall be installed so that there will be no unnecessary interference in the maintenance of the separate systems. In no case shall the conductors, cables, messenger strand, or equipment of one system cause abrasion to the conductors , cable , messenger strand, or equipment of any other system. (3) Lightning Conductors. Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between any coaxial cable and lightning conductors .

Informational Note No. 1: For additional information regarding overhead (aerial) wires and cables, see ANSI C2-2012, National Electrics/ Safety Code, Part 2, Safety Rules for Overhead Lines.

Informational Note No. 2: See Section 4.6 of NFPA 780-2017, Standard for the Installation of Lightning Protection Systems, for the calculation of sideflash distance.

820.47 Underground Coaxial Cables Entering Buildings. Underground coaxial cables entering buildings shall comply with 800.47, and 820.47(A) and 820.47(B).

(A) Underground Systems with Electric Light, Power, Class 1, or Non- Power-Limited Fire Alarm Circuit Conductors. Underground coaxial cables in a duct, pedestal, handhole enclosure, or manhole that contains electric light, power, or Class 1 or non- power-limited fire alarm circuit conductors shall be in a section permanently separated from such conductors by means of a suitable barrier.

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(B) Direct-Buried Cables and Raceways. Direct-buried coaxial cable shall be separated at least 300 mm (12 in.) from conductors of any light or power, non- power-limited fire alarm circuit conductors , or Class 1 circuit.

Exception No. 1: Separation shall not be required where electric service conductors or coaxial cables are installed in raceways or have metal cable armor.

Exception No. 2: Separation shall not be required where electric light or power branch-circuit or feeder conductors or Class 1 circuit conductors are installed in a raceway or in metal-sheathed, metal-clad, or Type UF or Type USE cables; or the coaxial cables have metal cable armor or are installed in a raceway.

820.48 Unlisted Cables Entering Buildings. Unlisted outside plant coaxial cables shall be permitted to be installed in building spaces other than risers, ducts used for environmental air, plenums used for environmental air, and other spaces used for environmental air, where the length of the cable within the building, measured from its point of entrance, does not exceed 15 m (50 ft) and the cable enters the building from the outside and is terminated at a grounding block. The point of entrance shall be permitted to be extended from the penetration of the external wall or floor slab by continuously enclosing the entrance cables in rigid metal conduit (RMC) or intermediate metal conduit (IMC) to the point of emergence..

820.49 Metal Entrance Conduit Grounding. Metal conduit containing entrance coaxial cable shall be connected by a bonding conductor or grounding electrode conductor to the building grounding electrode system in accordance with 820.100(B).


820.93 Grounding of the Outer Conductive Shield of Coaxial Cables. Coaxial cables entering buildings or attached to buildings shall comply with 820.93(A) or (B). Where the outer conductive shield of a coaxial cable is ground ed, no other protective devices shall be required. For purposes of this section, grounding located at mobile home service equipment located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, or at a mobile home disconnecting means grounded in accordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, shall be considered to meet the requirements of this section.

Informational Note: Selecting a grounding block location to achieve the shortest practicable bonding conductor or grounding electrode conductor helps limit potential differences between CATV and other metallic systems.

(A) Entering Buildings. In installations where the coaxial cable enters the building, the outer conductive shield shall be grounded in accordance with 820.100 . The grounding shall be as close as practicable to the point of entrance. (B) Terminating Outside of the Building. In installations where the coaxial cable is terminated outside of the building, the outer conductive shield shall be grounded in accordance with 820.100. The grounding shall be as close as practicable to the point of attachment or termination. (C) Location. Where installed, a listed primary protector shall be applied on each community antenna and radio distribution (CATV) cable external to the premises. The listed primary protector shall be located as close as practicable to the entrance point of the cable on either side or integral to the ground block. (D) Hazardous (Classified) Locations. Where a primary protector or equipment providing the primary protection function is used, it shall not be located in any hazardous (classified) location as defined in 500.5 and 505.5 or in the vicinity of easily ignitable material.

Exception: As permitted in 501.150, 502.150, and 503. 150.


820.100 Cable Bonding and Grounding. The shield of the coaxial cable shall be bonded or grounded as specified in 800.100 and 820.100(A) through (E).

Exception: For communications systems using coaxial cable completely contained within the building (i.e., they do not exit the building) or the exterior zone of protection defined by a 46 m (150 ft) radius rolling sphere and isolated from outside cable plant, the shield shall be permitted to be grounded by a connection to an equipment grounding conductor as described in 250.118. Connecting to an equipment grounding conductor through a grounded receptacle using a dedicated bonding jumper and a permanently connected listed device shall be permitted. Use of a cord and plug for the connection to an equipment grounding conductor shall not be permitted.


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Informational Note: See 4.8.3.1 of NFPA 780-2017, Standard for the Installation of Lightning Protection Systems, for the theory of the term rolling sphere.




current-carrying capacity not less than the outer sheath of the coaxial cable. The bonding conductor or grounding electrode conductor shall not be required to exceed 6 AWG.

(4) Length. The bonding conductor or grounding electrode conductor shall be as short as practicable. In one- and two-family dwellings, the bon ding conductor or grounding electrode conductor shall be as short as practicable, not to exceed 6.0 m (20 ft) in length.


Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximum bonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate grounding electrode as specified in 250.52(A)(5), (A)(6), or (A)(7) shall be used, the grounding electrode conductor shall be connected to the separate grounding electrode in accordance with 250.70, and the separate grounding electrode shall be connected to the power grounding electrode system in accordance with 820.100(D).




(1) In Buildings or Structures with an Intersystem Bonding Termination. If the building or structure served has an intersystem bonding termination as required by 250.94, the bonding conductor shall be connected to the intersystem bonding termination.

(2) In Buildings or Structures with Grounding Means. If an intersystem bonding termination is established, 250.94(A) shall apply. If the building or structure served has no intersystem bonding termination, the bonding conductor or grounding electrode conductor shall be connected to the nearest accessible location on one of the following: (1) The building or structure grounding electrode system as covered in 250.50 (2) The grounded interior metal water piping system, within 1.5 m (5 ft) from its point of entrance to the building, as

covered in 250.52 (3) The power service accessible means external to enclosures using the options identified in 250.94(A), Exception (4) The nonflexible metal power service raceway (5) The service equipment enclosure (6) The grounding electrode conductor or the grounding electrode conductor metal enclosure of the power service (7) The grounding electrode conductor or the grounding electrode of a building or structure disconnecting means



For purposes of this section, the mobile home service equipment or the mobile home disconnecting means as described in 820.93 shall be considered accessible.

(3) In Buildings or Structures Without an lntersystem Bonding Termination or Grounding Means. If the building or structure served has no intersystem bonding termination or grounding means, as described in 820.100(B)(2), the grounding electrode conductor shall be connected to one of the following: (1) To any one of the individual grounding electrodes described in 250.52(A)(1), (A)(2), (A)(3), or (A)(4) (2) If the building or structure served has no intersystem bonding termination or grounding means, as described in

820.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes described in 250.52(A)(5), (A)(7), and (A)(8). Steam, hot water pipes, or lightning protection system conductors shall not be employed as


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grounding electrodes for bonding conductors or grounding electrode conductors.


(D) Bonding of Electrodes. A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between the grounding electrode and power grounding electrode system at the building or structure served where separate electrodes are used.




(EA) Shield Protection Devices. Grounding of a coaxial drop cable shield by means of a protective device that does not interrupt the grounding system within the premises shall be permitted.

820.103 Equipment Grounding. Unpowered equipment and enclosures or equipment powered by the coaxial cable shall be considered grounded where connected to the metallic cable shield.



(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the coaxial cable shield ground, or surge arrester grounding terminal, shall be connected to a grounding electrode conductor or grounding electrode in accordance with 820.100(B)(3).

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile ho me it serves , the coaxial cable shield ground, or surge arrester grounding terminal, shall be connected to a grounding electrode in accordance with 820.100 (B)(3).

(B) Bonding. The coaxial cable shield grounding terminal, surge arrester grounding terminal, or grounding electrode shall be connected to the metal frame or available grounding terminal of the mobile home with a copper conductor not smaller than 12 AWG under any of the following conditions:




(A) Types of Raceways. Coaxial cables shall be permitted to be installed in any raceway that complies with either 820.110(A)(1) or (A)(2).

(1) Raceways Recognized in Chapter 3. Coaxial cables shall be permitted to be installed in any raceway included in Chapter 3. The raceways shall be installed in accordance with the requirements of Chapter 3.

(2) Communications Raceways. Coaxial cables shall be permitted to be installed in plenum listed communications raceways that comply with 800.110(A)., riser communications raceways, and general-purpose communications raceways, selected in accordance with Table 805.15 4(b) , listed in accordance with 805.182, and installed in accordance with 805.113 and 362.24 through 362.56, where the requirements applicable to electrical nonmetallic tubing (ENT) apply.

(3) lnnerduct for Coaxial Cables. Listed plenum communications raceways that comply with 800.110(B), listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805.154(b) shall be permitted to be installed as innerduct in any type of listed raceway permitted in Chapter 3.

(B) Raceway Fill for Coaxial Cables. The raceway fill requirements of Chapters 3 and 9 shall not apply to coaxial cables.



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Coaxial cables shall be permitted to be installed in plenum listed cable routing assemblies that comply with 800.110(C)., riser cable routing assemblies, and general-purpose cable routing assemblies selected in accordance with Table 805.154(c) , listed in accordance with 805.182, and installed in accordance with 805.110(C) and 805.113.

(D) Cable Trays. Coaxial cables shall be permitted to be installed in metal or listed nonmetallic cable tray systems.

820.113 Installation of Coaxial Cables

Installation of coaxial cables shall comply with 820.113(A) through (K). Installation of raceways and cable routing assemblies shall comply with 820.110.

(A) Listing. Coaxial cables installed in buildings shall be listed.

Exception: Coaxial cables that are installed in compliance with 820.48 shall not be required to be listed.

(B) Ducts Specifically Fabricated for Environmental Air. The following cables shall be permitted in ducts specifically fabricated for environ mental air as described in 300.22(B) if they are directly associated with the air distribution system:

(1) Up to 1.22 m (4 ft) of Type CATVP (2) Types CATVP, CATVR, CATV, and CATVX installed in raceways that are installed in compliance with 300.22(B)


(C) Other Spaces Used for Environmental Air (Plenums). The following cables shall be permitted in other spaces used for environmental air as described in 300.22(C):

(1) Type CATVP (2) Type CATVP installed in plenum communications raceways (3) Type CATVP installed in plenum cable routing assemblies (4) Type CATVP supported by open metal cable tray systems (5) Types CATVP, CATVR, CATV, and CATVX installed in raceways that are installed in compliance with 300.22(C) (6) Types CATVP, CATVR, CATV, and CATVX supported by solid bottom metal cable trays with solid metal covers in

other spaces used for environmental air (plenums) as described in 300.22(C) (7) Types CATVP, CATVR, CATV, and CATVX installed in plenum communications raceways, riser communications

raceways, and general -purpose communications raceways supported by solid bottom metal cable trays with solid metal covers in other spaces used for environmental air (plenums) as described in 300.22(C)


(D) Risers - Cables in Vertical Runs. The following cables shall be permitted in vertical runs penetrating one or more floors and in vertical runs in a shaft:

(1) Types CATVP and CATVR (2) Types CATVP and CATVR installed in:

a. Plenum communications raceways b. Plenum cable routing assemblies c. Riser communications raceways d. Riser cable routing assemblies

Informational Note: See 820.26800.26 for firestop requirements for floor penetrations.

(E) Risers – Cables and Inneducts in Metal Raceways. The following cables and innerducts shall be permitted in metal raceways in a riser having firestops at each floor:

(1) Types CATVP, CATVR, CATV, and CATVX (2) Types CATVP, CATVR, CATV, and CATVX installed in:


Informational Note: See820.26800.26 for firestop requirements for floor penetrations.

(F) Risers - Cables in Fireproof Shafts.


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The following cables shall be permitted to be installed in fireproof riser shafts having firestops at each floor: (1) Types CATVP, CATVR, CATV, and CATVX (2) Types CATVP, CATVR, CATV cables installed in:

a. Plenum communications raceways b. Plenum cable routing assemblies c. Riser communications raceways d. Riser cable routing assemblies e. General-purpose communications raceways f. General-purpose cable routing assemblies


(G) Risers - One- and Two-Family Dwellings, The following cables shall be permitted in one- and two-family dwellings:

(1) Types CATVP, CATVR, CATV (2) Type CATVX less than 6 mm (0.25 in.) in diameter (3) Types CATVP, CATVR, CATV installed in:



(H) Cable Trays. The following cables shall be permitted to be supported by cable trays:

(1) Types CATVP, CATVR, CATV (2) Types CATVP, CATVR, CATV installed in:


(I) Distributing Frames and Cross-Connect Arrays. The following cables shall be permitted to be installed in distributing frames and cross-connect arrays:

(1) Types CATVP, CATVR, CATV (2) Communications wires and Types CATVP, CATVR, CATV installed in:


(J) Other Building Locations. The following cables shall be permitted to be installed in building locations other than the locations covered in 820.113(B) through (I)

(1) Types CATVP, CATVR, CATV (2) A maximum of 3 m (10 ft) of exposed Type CATVX cable in nonconcealed spaces (3) Communications wires and Types CATVP, CATVR, CATV installed in the following:



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(4) Types CATVP, CATVR, CATV, and CATVX installed in raceways recognized in Chapter 3

(K) One- and Two -Family and Multifamily Dwellings. The following cables shall be permitted to be installed in multifamily dwellings in locations other than the locations covered in 820.113(B) through (G):

(1) Types CATVP, CATVR, CATV (2) Type CATVX less than 10 mm (0.375 in.) in diameter in nonconcealed spaces (3) Types CATVP, CATVR, CATV installed in the following:


(4) Types CATVP, CATVR, CATV, and CATVX installed in raceways recognized in Chapter 3

820.133 Installation of Coaxial Cables and Equipment. Beyond the point of grounding, as defined in 820.93, the coaxial cable installation shall comply with 820.133(A) and (B).


(a) Other Circuits. Coaxial cables shall be permitted in the same raceway, cable tray, box, enclosure, or cable routing assembly with jacketed cables of any of the following: (1) Class 2 and Class 3 remote-control, signaling, and power-limited circuits in compliance with Article 645 or

Parts I and Ill of Article 725 (2) Power-limited fire alarm systems in compliance with Parts I and Ill of Article 760 (3) Nonconductive and conductive optical fiber cables in compliance with Parts I and V of Article 770 (4) (4) Communications circuits in compliance with Parts I and V of Article 805 (5) Low -power network-powered broadband communications circuits in compliance with Parts I and V of Article

830 (B) Electric Light, Power, Class 1, Non- Power-Limited Fire Alarm, and Medium-Power Network-Powered

Broadband Communications Circuits. Coaxial cable shall not be placed in any raceway, compartment, outlet box, junction box, or other enclosures with conductors of electric light, power, Class 1, non- power-limited fire alarm, or medium-power network-powered broadband communications circuits.

Exception No. 1: Coaxial cable shall be permitted to be placed in any raceway, compartment , out let box, junction box, or other enclosures with conductors of electric light, power, Class 1, non- power-limited fire alarm, or medium-power network-powered broadband communications circuits where all of the conductors of electric light, power, Class 1, non- power-limited fire alarm, and medium-power network-powered broadband communications circuits are separated from all of the coaxial cables by a permanent barrier or listed divider.

Exception No. 2: Coaxial cable shall be permitted to be placed in outlet boxes, junction boxes, or similar fittings or compartments with power conductors where such conductors are introduced solely for power supply to the coaxial cable system distribution equipment. The power circuit conductors shall be routed within the enclosure to maintain a minimum of 6 mm (1/4 in.) separation from coaxial cables.


(2) Other Applications. Coaxial cable shall be separated at least 50 mm (2 in.) from conductors of any electric light, power, Class 1, non- power-limited fire alarm, or medium-power network-powered broadband communications circuits.

Exception No. 1: Separation shall not be required where either (1) all of the conductors of electric light, power, Class 1, non- power-limited fire alarm, and medium- power network-powered broadband communications circuits are in a raceway, or in metal-sheathed, metal-clad, nonmetallic-sheathed, Type AC or Type UF cables, or (2) all of the coaxial cables are encased in a raceway..

Exception No. 2: Separation shall not be required where the coaxial cables are permanently separated from the conductors of electric light, power, Class 1, non- power-limited fire alarm, and medium-power network-powered broadband communications circuits by a continuous and firmly fixed nonconductor, such as porcelain tubes or flexible tubing, in addition to the insulation on the wire..

(B) Support of Coaxial Cables. Raceways shall be used for their intended purpose. Coaxial cables shall not be strapped, taped, or attached by any means to the exterior of any raceway as a means of support.

Exception: Overhead (aerial) spans of coaxial cables shall be permitted to be attached to the exterior of a raceway-type mast intended for the attachment and support of such wires and cables.


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820.154 Applications of Listed CATV Cables. Permitted and nonpermitted applications of listed coaxial cables shall be as indicated in Table 820.154(a). The permitted applications shall be subject to the installation requirements of 820.110 and 820.113. The substitutions for coaxial cables in Table 820.154(b) and illustrated in Figure 820.154 shall be permitted.

Informational Note: The substitute cables in Table 820 .154(b) and Figure 820.154 are only coaxial-type cables.


Applications Wire and Cable Type



In fabricated ducts Y* N N N

In metal raceway that complies with 300.22(B) Y* Y* Y* Y*


In other spaces used for environmental air Y* N N N

In metal raceway that complies with 300.22(C) Y* Y* Y* Y*

In plenum communications raceways Y* N N N

In plenum cable routing assemblies Y* N N N

Supported by open metal cable trays Y* N N N


Y* Y* Y* Y*

In risers In vertical runs Y* Y* N N



In plenum communications raceways Y* Y* N N

In plenum cable routing assemblies Y* Y* N N

In riser communications raceways Y* Y* N N

In riser cable routing assemblies Y* Y* N N

In one - and two -family dwellings Y* Y* Y* Y*


General Y* Y* Y* Y*



In nonconcealed spaces Y* Y* Y* Y*

Supported by cable trays Y* Y* Y* N

In distributing frames and cross- connect arrays Y* Y* Y* N

In any raceway recognized in Chapter 3 Y* Y* Y* Y*

In plenum communications raceways Y* Y* Y* N

In plenum cable routing assemblies Y* Y* Y* N

In riser communication s raceways Y* Y* Y* N

In riser cable routing assemblies Y* Y* Y* N

In general-purpose communications raceways Y* Y* Y* N

In general-purpose cable routing assemblies Y* Y* Y* N


Informational Note No. 1: Part V of Article 820 covers installation methods within buildings. This table covers the applications of listed coaxial cables in buildings. The definition of Point of Entrance is in 820.2800.2.

Informational Note No. 2: For information on the restrictions to the installation of communications cables in ducts specifically fabricated for environmental air, see 820.113(B).


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Cable Type Marking

CATVP CMP, BLP

CATVR CATV, CMP, CMR, BMR, BLP, BLR

CATV CATV, CMP, CATVR, CMR, CMG, CM, BMR, BM, BLP, BLR. BL

CATVX CATV, CMP, CATVR, CMR, CATV, CMG, CM, CMX, BMR, BM, BLP, BLR, BL, BLX




820.179 Coaxial Cables. Cables shall be listed in accordance with 820.179(A) through (D) and marked in accordance with Table 820.179. The cable voltage rating shall not be marked on the cable. Coaxial cables shall have a temperature rating of not less than 60°C (140°F). The temperature rating shall be marked on the jacket of coaxial cables that have a temperature rating exceeding 60°C (140°F).

Informational Note: Voltage markings on cables could be misinterpreted to suggest that the cables may be suitable for Class 1, electric light, and power applications.

Exception: Voltage markings shall be permitted where the cable has multiple listings and voltage marking is required for one or more of the listings.

(A) Type CATVP. Type CATVP community antenna television plenum coaxial cables shall be listed in accordance with 800.179(A).as being


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suitable for use in ducts, plenums, and other spaces used for environmental air and shall also be listed as having adequate fire-resistant and low-smoke-producing characteristics. Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0. 50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces.

(B) Type CATVR. Type CATVR community antenna television riser coaxial cables shall be listed in accordance with 800.179(B). as being suitable for use in a vertical run in a shaft or from floor to floor and shall also be listed as having fire-resistant characteristics capable of preventing the carrying of fire from floor to floor.


(C) Type CATV. Type CATV community antenna television coaxial cables shall be listed in accordance with 800.179(C). as being suitable for general-purpose CATV use, with the exception of risers and plenums, and shall also be listed as being resistant to the spread of fire.



(D) Type CATVX. Type CATVX limited-use community antenna television coaxial cables shall be listed in accordance with 800.179(D).as being suitable for use in dwellings and for use in raceway s and shall also be listed as being resistant to flame spread. Informational Note: One method of determining that cable is resistant to flame spread is by testing the cable to the VW-1 (vertical-wire) flame test in ANS/IUL 1581-2017, Reference Standard for Electrical Wires, Cables and Flexible Cords.


Cable Marking Type



CATV CATV cable







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Chapter 8 Communications Systems Article 830 Network -Powered Broadband Communications Systems Part I. General

830.1 Scope This article covers network-powered broadband communications systems that provide any combination of voice, audio, video, data, and interactive services through a network interface unit.

Informational Note No. 1: A typical basic system configuration includes a cable supplying power and broadband signal to a network interface unit that converts the broadband signal to the component signals. Typical cables are coaxial c able with both broad band signal and power on the center conductor, composite metallic cable with a coaxial member(s) or twisted pair members for the broadband signal and twisted pair members for power, and composite optical fiber cable with a pair of conductors for power. Larger systems may also include network components such as amplifiers that require network power.

Informational Note No. 2: See 90.2(B)(4) for installations of broadband communications systems that are not covered.

830.2 Definitions. See Part I of Article 100. The definitions in this section shall apply only within Article 830.

Informational Note: A typical single-family network-powered communications circuit consists of a communications drop or communications service cable and an NIU and includes the communications utility’s serving terminal or tap where it is not under the exclusive control of the communications utility.

Abandoned Network-Powered Broadband Communications Cable. Installed network-powered broadband communications cable that is not terminated at equipment other than a connector and not identified for future use with a tag. Block. A square or portion of a city, town, or village enclosed by streets and including the alleys so enclosed, but not any street. Exposed (to Accidental Contact). A circuit in such a position that, in case of failure of supports or insulation, contact with another circuit may result.

Informational Note: See Part I of Article 100 for two other definitions of Exposed: Exposed (as applied to live parts) and Exposed (as applied to wiring methods).

Fault Protection Device. An electronic device that is intended for the protection of personnel and functions under fault conditions, such as network-powered broadband communications cable short or open circuit, to limit the current or voltage, or both, for a low-power network-powered broadband communications circuit and provide acceptable protection from electric shock. Network Interface Unit (NIU). A device that converts a broadband signal into component voice, audio, video, data, and interactive services signals and provides isolation between the network power and the premises signal circuits. These devices often contain primary and secondary protectors . Network-Powered Broadband Communications Circuit. The circuit extending from the communications utility's or service provider's serving terminal or tap up to and including the NIU.

Informational Note: A typical one-family dwelling network-powered communications circuit consists of a communications drop or communications service cable and an NIU and includes the communications utility’s serving terminal or tap where it is not under the exclusive control of the communications utility.

Point of Entrance. The point within a building at which the network-powered broadband communications cable emerges from an external wall, from a concrete floor slab, from rigid metal conduit (RMC), or from intermediate metal conduit (IMC).

830.3 Other Articles. Circuits and equipment shall comply with 830.3(A) through (FC). Only those sections of Chapters 1 through 7 referenced in Article 830 shall apply to communications circuits and equipment.

(A) Hazardous (Classified) locations. Network-powered broadband communications circuits and equipment installed in a location that is classified in accordance with 500.5 and 505.5 shall comply with the applicable requirements of Chapter 5.



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(A) General Requirements for Network-Powered Broadband Systems. Article 800 shall apply to network-powered broadband communications systems, unless modified by Article 830.

(EB) Output Circuits. As appropriate for the services provided , the output circuits derived from the network interface unit shall comply with the requirements of the following:

(1) Installations of communications circuits – Part V of Article 805 (2) Installations of community antenna television and radio distribution circuits - Part V of Article 820

Exception: Where protection is provided in the output of the NIU, 830.90(B)(3) shall apply.

(3) Installations of optical fiber cables - Part V of Article 770 (4) Installations of Class 2 and Class 3 circuits - Part Ill of Article 725 (5) Installations of power-limited fire alarm circuits - Part Ill of Article 760

(FC) Protection Against Physical Damage. The requirements of 300.4 shall apply.

830.15 Power Limitations. Network-powered broadband communications systems shall be classified as having low- or medium-power sources as specified in 830.15(1) or (2).

(1) Sources shall be classified as defined in Table 830.15. (2) Direct-current power sources exceeding 150 volts to ground, but no more than 200 volts to ground, with the current

to ground limited to 10 mA dc, that meet the current and power limitation for medium-power sources in Table 830.15 shall be classified as medium-power sources.

Informational Note: One way to determine compliance with 830.15(2 ) is listed information technology equipment intended to supply power via a communications network that complies with the requirements for RFT-V circuits as defined in UL60950-21-2007, Standard for Safety for Information Technology Equipment- Safety - Part 21: Remote Power Feeding.

Table 830.15 Limitations for Network -Powered Broadband Communications Systems

Network Power Source Low Medium

Circuit voltage, Vmax (volts)1 0-100 0- 150

Power limitation, VAmax (volt-amperes)1 250 250

Current limitation, Vmax (amperes )1 1000/Vmax 1000/Vmax

Maximum power rating (volt-amperes) 100 100

Maximum voltage rating (volts) 100 150

Maximum overcurrent protection (amperes)2 100/Vmax NA


1 Vmax, lmax, and VAmax are determined with the current-limiting impedance in the circuit (not bypassed) as follows:

Vmax - Maximum system voltage regardless of load with rated input applied.

lmax - Maximum system current under any noncapacitive load, including short circuit, and with overcurrent protection bypassed if used. lmax limits apply after 1 minute of operation.

VAmax - Maximum volt-ampere output after 1 minute of operation regardless of load and overcurrent protection bypassed if used.

2 Overcurrent protection is not required where the current-limiting device provides equivalent current limitation and the current-limiting device does not reset until power or the load is removed.

830.21 Access to Electrical Equipment Behind Panels Designed to Allow Access. Access to electrical equipment shall not be denied by an accumulation of network-powered broadband communications cables that prevents removal of panels, including suspended ceiling panels.


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830.24 Mechanical Execution of Work. Network-powered broadband communications circuits and equipment shall be installed in a neat and workmanlike manner. Cables installed exposed on the surface of ceilings and sidewalls shall be supported by the building structure in such a manner that the cable will not be damaged by normal building use. Such cables shall be secured by hardware, including straps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage the cable. The installation shall also conform to 300.4(A), (D), (E), (F), and 300.11, and 800.24. Nonmetallic cable ties and other nonmetallic cable accessories u sed to secure and support cables in other spaces used for environmental air (plenums) shall be listed as having low smoke and heat release properties in accordance with 805.170(C).

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/SICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1 - 0 -2015, Commercial Building Telecommunications Infrastructure Standard; ANSIITIA-569-0 -2018, Telecommunications Pathways a and Spaces; ANSI/TIA -5 70-C -20 12, Residential Telecommunications Infrastructure Standard; ANSI/TIA -1005-A -2012, Telecommunications Infrastructure Standard for Industrial Premises; ANSI/ TIA-1179-2010 , Healthcare Facility Telecommunications Infrastructure Standard; ANSI/TIA-4966-2014, Telecommunications Infrastructure Standard for Educations/ Facilities; and other ANSI-approved installation standards.



830.25 Abandoned Cables. The accessible portion of abandoned network-powered broadband cables shall be removed. Where cables are identified for future use with a tag, the tag shall be of sufficient durability to withstand the environment involved.

830.26 Spread of Fire or Products of Combustion. Installations of network-powered broadband cables in hollow spaces, vertical shafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products of combustion will not be substantially increased. Openings around penetrations of network-powered broadband cables through fire- resistant-rated walls, partitions, floors, or ceilings shall be firestopped using approved methods to maintain the fire resistance rating.




830.40 Entrance Cables Network-powered broadband communications cables located outside and entering buildings shall comply with 830.40(A) and (B).

(A) Medium-Power Circuits. Medium-power network-powered broadband communications circuits located outside and entering buildings shall be installed using Type BMU, Type BM, or Type BMR network-powered broadband communications medium-power cables.

(B) Low-Power Circuits. Low-power network-powered broadband communications circuits located outside and entering buildings shall be installed using Type BLU or Type BU< low-power network-powered broadband communications cables. Cables shown in Table 830.154(b) shall be permitted to substitute.

Exception: Outdoor community antenna television and radio distribution system coaxial cables installed prior to January 1, 2000, and installed in accordance with Article 820, shall be permitted for low-power-type, network-powered broadband communications circuits.

830.44 Overhead (Aerial) Cables. Overhead (aerial) network-powered broadband communications cables shall comply with 800.44 and 830.44(A) through (GD).

Informational Note: For additional information regarding overhead (aerial) wires and cables, see ANSI C2-2007, National Electrics/ Safety Code, Part 2, Safety Rules for Overhead Lines.


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Where network-powered broadband communications cables and electric light or power conductors are supported by the same pole or are run parallel to each other in-span, the conditions described in 830.44(A)(1) through (A)( 4) shall be met.

(1) Relative location. Where practicable, the network-powered broadband communications cables shall be located below the electric light or power conductors.

(2) Attachment to Cross-Arms. Network-powered broadband communications cables shall not be attached to a cross-arm that carries electric light or power conductors.

(3) Climbing Space. The climbing space through network-powered broadband communications wires and cables shall comply with the requirements of 225.14(D).

(4) Clearance: Lead-in or overhead (aerial) - drop network-powered broadband communications cables from a pole or other support, including the point of initial Attachment to a building or structure, shall be kept away from electric light, power, Class 1, or non- power-limited fire alarm circuit conductors so as to avoid the possibility of accidental contact.

Exception: Where proximity to electric light, power, Class 1, or non- power-limited fire alarm circuit conductors cannot be avoided, the installation shall provide clearances of not less than 300 mm (12 in.) from electric light, power, Class 1, or non- power-limited fire alarm circuit conductors. The clearance requirement shall apply at all points along the drop, and it shall increase to 1.0 m (40 in.) at the pole.

(B) Above Roofs. Network-powered broadband communications cables shall have a vertical clearance of not less than 2.5 m (8 ft) from all points of roofs above which they pass.

Exception No. 1: Network-powered broadband communications cables shall not be required to have a vertical clearance of 2.5 m (8 ft) above auxiliary buildings such as garages and the like.

Exception No. 2: A reduction in clearance above only the overhanging portion of the roof to not less than 450 mm (18 in.) shall be permitted if (1) not more than 1.2 m (4 ft) of the broadband communications drop cables pass above the roof overhang, and (2) they are terminated at a through-the-roof raceway or support.


(CA) Clearance from Ground Overhead (aerial) spans of network-powered broadband communications cables shall conform to not less than the following:

(1) 2.9 m (9½ ft) - above finished grade, sidewalks, or from any platform or projection from which they might be reached and accessible to pedestrians only

(2) 3.5 m (11½ ft) - over residential property and driveways, and those commercial areas not subject to truck traffic (3) 4.7 m (15½ ft) - over public streets, alleys, roads, parking areas subject to truck traffic, driveways on other than

residential property, and other land traversed by vehicles such as cultivated, grazing, forest, and orchard

Informational Note: These clearances have been specifically chosen to correlate with ANSI/IEEE C2-2012 , National Electrical Safety Code, Table 232-1, which provides for clearances of wires, conductors, and cables above ground and roadways, rather than using the clearances referenced in 225.18. Because Article 805 and Article 820 have had no required clearances, the communications industry has used the clearances from the NESC for their installed cable plant.

(DB) Over Pools Clearance of network-powered broadband communications cable in any direction from the water level, edge of pool, base of diving platform, or anchored raft shall comply with those clearances in 680.9.

(EC) Final Spans Final spans of network-powered broadband communications cables without an outer jacket shall be permitted to be attached to the building, but they shall be kept not less than 900 mm (3 ft) from windows that are designed to be opened, doors, porches, balconies, ladders, stairs , fire escapes, or similar locations .

Exception: Conductors run above the top level of a window shall be permitted to be less than the 900-mm (3-ft) requirement above.

Overhead (aerial) network-powered broadband communications cables shall not be installed beneath openings through which materials might be moved, such as openings in farm and commercial buildings, and shall not be installed where they obstruct entrance to these building openings.

(F) Between Buildings.



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Network-powered broadband communications cables extending between buildings or structures, and also the supports or attachment fixtures, shall be identified as suitable tor outdoor aerial applications and shall have sufficient strength to withstand the loads to which they may be subjected.

Exception: Where a network-powered broadband communications cable does not have sufficient strength to be self-supporting, it shall be attached to a supporting messenger cable that, together with the attachment fixtures or supports, shall be acceptable for the purpose and shall have sufficient strength to withstand the loads to which they may be subjected..

(GD) On Buildings. Where attached to buildings, network-powered broadband communications cables shall be securely fastened in such a manner that they are separated from other conductors in accordance with 830.44(GD)(1)through(GD)(43). (1) Electric Light or Power. The network-powered broadband communications cable shall have a separation of at least 100 mm (4 in.) from electric light, power, Class 1, or non- power-limited fire alarm circuit conductors not in raceway or cable, or be permanently separated from conductors of the other system by a continuous and firmly fixed nonconductor in addtion to the insulation on the wires. (2) Other Communications Systems. Network-powered broadband communications cables shall be installed so that there will be no unnecessary interference in the maintenance of the separate systems. In no case shall the conductors, cables, messenger strand, or equipment of one system cause abrasion to the conductors, cables, messenger strand, or equipment of any other system. (3) Lightning Conductors. Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between any coaxial cable and lightning conductors . Informational Note: See Section 4.6 of NFPA 780-2017, Standard for the Installation of Lightning Protection Systems, for the calculation of sideflash distance. (43) Protection from Damage Network-powered broadband communications cables attached to buildings or structures and located within 2.5 m (8 It) of finished grade shall be protected by enclosures, raceways, or other approved means.

Exception: A low-power network-powered broadband communications circuit that is equipped with a listed fault protection device, appropriate to the network- powered broadband communications cable used, and located on the network side of the network-powered broadband communications cable shall not be required to be additionally protected by enclosures, raceways, or other approved means.


Underground network-powered broadband communications cables entering buildings shall comply with 800.47 and 830.47(A) through 830.47(DC).

(A) Underground Systems with Electric Light and Power, Class 1, or Non- Power-limited Fire Alarm Circuit Conductors.. Underground network-powered broadband communications cables in a duct, pedestal, handhole enclosure, or manhole that contains electric light, power conductors, non- power-limited fire alarm circuit conductors, or Class 1 circuits shall be in a section permanently separated from such conductors by means of a suitable barrier.

(BA) Direct-Buried Cables and Raceways. Direct-buried network-powered broadband communications cables shall be separated by at least 300 mm (12 in.) from conductors of any light, power, non-power-limited fire alarm circuit conductors or Class1 circuit

Exception No. 1: Separation shall not be required where electric service conductors or network-powered broadband communications cables are installed in raceways or have metal cable armor.

Exception No. 2: Separation shall not be required where electric light or power branch-circuit or feeder conductors, non- power-limited fire alarm circuit conductors, or Class 1 circuit conductors are installed in a raceway or in metal-sheathed, metal-clad, or Type UF or Type USE cables; or the network-powered broadband communications cables have metal cable armor or are installed in a raceway

(CB) Protection from Physical Damage. Direct-buried cable, conduit, or other raceways shall be installed to meet the minimum cover requirements of Table 830.47(C). In addition, direct-buried cables emerging from the ground shall be protected by enclosures, raceways, or other approved means extending from the minimum cover distance required by Table 830.47(C) below grade to a point at least 2.5 m (8 ft) above finished grade. In no case shall the protection be required to exceed 450 mm (18 in.) below finished grade. Types BMU and BLU direct-buried cables emerging from the ground shall be installed in rigid metal


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conduit (RMC), intermediate metal conduit (IMC), rigid nonmetallic conduit, or other approved means extending from the minimum cover distance required by Table 830.47(C) below grade to the point of entrance.

Exception: A low -power network-powered broadband communications circuit that is equipped with a listed fault protection device, appropriate to the network- powered broadband communications cable used, and located on the network side of the network-powered broadband communications cable being protected.

Table 830.47(C) Network -Powered Broadband Communications Systems Minimum Cover Requirements (Cover is the shortest distance measured between a point on the top surface of any direct-buried cable, conduit, or other raceway and the top surface of finished grade, concrete, or similar cover.)

Location of Wiring Method or Circuit Direct Buried Cables

Rigid Metal Conduit (RMC) or Inter mediate

Metal Conduit (IMC)

Nonmetallic Raceways listed for Direct Burial;

Without Concrete Encasement or Other Approved Raceways

mm in. mm in. mm in.

All locations not specified below 450 18 150 6 300 12

In trench below 50-mm (2-in.) thick concrete or equivalent

300 12 150 6 150 6

Under a building (in raceway only)

0 0 0 0 0 0

Under minimum of 100-mm (4-in.) thick concrete exterior slab with no vehicular traffic and the slab extending not less than 150 mm (6 in.)

300 12 100 4 100 4

One- and two-family dwelling driveways and outdoor parking areas and used only for dwelling-related purposes

300 12 300 12 300 12

Notes:

1. Raceways approved for burial only where concrete encased shall require a concrete envelope not less than 50 mm (2 in.) thick.

2. Lesser depths shall be permitted where cables rise for terminations or splices or where access is otherwise required.

3. Where solid rock is encountered, all wiring shall be installed in metal or nonmetallic raceway permitted for direct burial. The raceways shall be covered by a minimum of 50 mm (2 in.) of concrete extending down to rock.

4. Low-power network-powered broadband communications circuits using directly buried community antenna television and radio distribution system coaxial cables that were installed outside and entering buildings prior to January 1, 2000, in accordance with Article 820 shall be permitted where buried to a minimum depth of 300 mm (12 in.).

(DC) Pools. Cables located under the pool or within the area extending 1.5 m (5 ft) horizontally from the inside wall of the pool shall meet those clearances and requirements specified in 680.11.

830.49 Metal Entrance Conduit Grounding. Metal conduit containing network-powered broadband communications entrance cable shall be connected by a bonding conductor or grounding electrode conductor to the building grounding electrode system in accordance with 830.100(B).


830.90 Primary Electrical Protection.

(A) Application. Primary electrical protection shall be provided on all network-powered broadband communications conductors that are neither grounded nor interrupted and are run partly or entirely in aerial cable not confined within a block. Also, primary electrical protection shall be provided on all aerial or underground network-powered broadband communications conductors that are neither grounded nor interrupted and are located within the block containing the building served so as


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to be exposed to lightning or accidental contact with electric light or power conductors operating at over 300 volts to ground.

Exception: Primary electrical protection shall not be required on the network-powered broadband communications conductors where electrical protection is provided on the derived circuit(s) (output side of the NIU) in accordance with 830.90(8)(3).

Informational Note No. 1: On network-powered broadband communications conductors not exposed to lightning or accidental contact with power conductors, providing primary electrical protection in accordance with this article helps protect against other hazards, such as ground potential rise caused by power fault currents, and above-normal voltages induced by fault currents on power circuits in proximity to the network-powered broadband communications conductors.

Informational Note No. 2: Network-powered broadband communications circuits are considered to have a lightning exposure unless one or more of the following conditions exist:

(1) Circuits in large metropolitan areas where buildings are close together and sufficiently high to intercept lightning.

(2) Areas having an average of five or fewer thunderstorm days each year and earth resistivity of less than 100 ohm-meters. Such areas are found along the Pacific coast.

Informational Note No. 3: For information on lightning protection systems, see NFPA 780-2017, Standard for the Installation of Lightning Protection Systems.

(1) Fuseless Primary Protectors. Fuseless -type primary protectors shall be permitted where power fault currents on all protected conductors in the cable are safely limited to a value no greater than the current-carrying capacity of the primary protector and of the primary protector bonding conductor or grounding electrode conductor.

(2) Fused Primary Protector s. Where the requirements listed in 830.90(A)(1) are not met, fused-type primary protectors shall be used. Fused-type primary protectors shall consist of an arrester connected between each conductor to be protected and ground, a fuse in series with each conductor to be protected, and an appropriate mounting arrangement. Fused primary protector terminals shall be marked to indicate line, instrument, and ground, as applicable.

(B) Location. The location of the primary protector, where required, shall comply with (B)(1), (B)(2), or (B)(3):

(1) A listed primary protector shall be applied on each network-powered broadband communications cable external to and on the network side of the network interface unit.

(2) The primary protector function shall be an integral part of and contained in the network interface unit. The network interface unit shall be listed as being suitable for application with network-powered broadband communications systems and shall have an external marking indicating that it contains primary electrical protection.

(3) The primary protector(s) shall be provided on the derived circuit(s) (output side of the NIU), and the combination of the NIU and the protector(s) shall be listed as being suitable for application with network-powered broadband communications systems.

A primary protector, whether provided integrally or external to the network interface unit, shall be located as close as practicable to the point of entrance.

For purposes of this section, a network interface unit and any externally provided primary protectors located at mobile home service equipment located in sight from and not more than 9.0 m (30 ft) from the exterior wall of the mobile home it serves, or at a mobile home disconnecting means grounded in accordance with 250.32 and located in sight from and not more than 9.0 m (30 ft) from the exterior wall of the mobile home it serves, shall be considered to meet the requirements of this section.

Informational Note: Selecting network interface unit and primary protector location to achieve the shortest practicable primary protector bonding conductor or grounding electrode conductor helps limit potential differences between communications circuits and other metallic systems.

(C) Hazardous (Classified) locations. The primary protector or equipment providing the primary protection function shall not be located in any hazardous (classified) location as defined in 500.5 and 505.5 or in the vicinity of easily ignitable material.

Exception: As permitted in 501.150, 5021. 50, and 503.150.

830.93 Grounding or Interruption of Metallic Members of Network -Powered Broadband Communications Cables. Network-powered communications cables entering buildings or attaching to buildings shall comply with 830.93(A) or (B). For purposes of this section, grounding located at mobile home service equipment located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, or at a mobile home disconnecting means grounded in accordance with 250.3 2 and located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, shall be considered to meet the requirements of this section.

Informational Note: Selecting a grounding location to achieve the shortest practicable bonding conductor or grounding electrode conductor helps


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limit potential differences between the network-powered broadband communications circuits and other metallic systems.

(A) Entering Buildings. In installations where the network-powered communications cable enters the building, the shield shall be grounded in accordance with 830.100 , and metallic members of the cable not used for communications or powering shall be grounded in accordance with 830.100 or interrupted by an insulating joint or equivalent device. The grounding or interruption shall be as close as practicable to the point of entrance.

(B) Terminating Outside of the Building. In installations where the network-powered communications cable is terminated outside of the build in g, the shield shall be grounded in accordance with 830.100, and metallic members of the cable not u sed for communications or powering shall be ground ed in accordance with 830.100 or interrupted by an insulating joint or equivalent device. The grounding or interruption shall be as close as practicable to the point of attachment of the NIU.


830.100 Cable, Network Interface Unit, and Primary Protector Bonding and Grounding. Network interface units containing protectors, NIUs with metallic enclosures, primary protectors, and the metallic members of the network-powered broadband communications cable that are intended to be bonded or grounded shall be connected as specified in 800.100.830.100(A) through 830.100(D).



conductive material, stranded or solid. (3) Size. The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG and shall have a

current-carrying capacity not less than that of the grounded metallic member(s) and protected conductor(s) of the Network-powered broadband communications cable. The bonding conductor or grounding electrode conductor shall not be required to exceed 6 AWG.

(4) Length. The bonding conductor or grounding electrode conductor shall be as short as practicable. In one- and two-family dwellings, the bonding conductor or grounding electrode conductor shall be as short as practicable, not to exceed 6.0 m (20 ft) in length.


Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximum bonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate communications ground rod meeting the minimum dimensional criteria of 830.100(B)(3)(2) shall be driven, and the grounding electrode conductor shall be connected to the communications ground rod in accordance with 830.100(C). The communications ground rod shall be bonded to the power grounding electrode system in accordance with 830.100(D).




(1) In Buildings or Structures with an Intersystem Bonding Termination. If the building or structure served has an intersystem bonding termination as required by 250.94, the bonding conductor shall be connected to the intersystem bonding termination.

Informational Note: See Informational Note Figure 805.100(6)(1) for an illustration of the application of the bonding conductor in buildings and structures equipped with an intersystem bonding termination.

(2) In Buildings or Structures with Grounding Means. If an intersystem bonding termination is established, 250.94(A) shall apply. If the building or structure served has no intersystem bonding termination, the bonding conductor or grounding electrode conductor shall be connected to the nearest accessible location on one of the following: (1) The building or structure grounding electrode system as covered in 250.50


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(2) The grounded interior metal water piping system, within 1.5 m (5 ft) from its point of entrance to the building, as covered in 250.52

(3) The power service accessible means external to enclosures using the options identified in 250.94(A), Exception (4) The nonflexible metal power service raceway (5) The service equipment enclosure (6) The grounding electrode conductor or the grounding electrode conductor metal enclosure of the power service (7) The grounding electrode conductor or the grounding electrode of a building or structure disconnecting means



Informational Note: See Informational Note Informational Note Figure 805.100(8 ){2) for an illustration of the application of the bonding conductor in buildings and structures not equipped with an intersystem bonding termination or terminating block providing access to the building grounding electrode system.

For purposes of this section, the mobile home service equipment or the mobile home disconnecting means as described in 830.93 shall be considered accessible.

(3) In Buildings or Structures Without an lntersystem Bonding Termination or Grounding Means. If the building or structure served has no intersystem bonding termination or grounding means, as described in 820.100(B)(2), the grounding electrode conductor shall be connected to one of the following: (1) To any one of the individual grounding electrodes described in 250.52(A)(1), (A)(2), (A)(3), or (A)(4) (2) If the building or structure served has no intersystem bonding termination or grounding means, as described in

830.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes described in 250.52(A)(5), (A)(7), and (A)(8). or to a ground rod or pipe not less than 1.5 m (5 ft) in length and 12.7 mm (½ in.) in diameter, driven, where practicable, into permanently damp earth and separated from lightning conductors as covered in 805.53 and at least 1.8 m (6 ft) from electrodes of other systems. Steam, hot water pipes, or lightning protection system conductors shall not be employed as grounding electrodes for protectors, NIUs with integral protection, grounded metal members, NIUs with metallic enclosures, and other equipment..


(D) Bonding of Electrodes. A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between the network-powered broadband communications system grounding electrode and the power grounding electrode system at the building or structure served where separate electrodes are used.






(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the network-powered broadband communications cable shield, network-powered broadband communications cable metallic members not used for communications or powering, network interface unit, and primary protector grounding terminal shall be connected to a grounding electrode conductor or grounding electrode in accordance with 830.100(B)(3).

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile ho me it serves, the network-powered broadband communications cable shield, network-powered broadband communications cable metallic members not used for communications or powering, network interface unit, and primary protector grounding terminal shall be connected to a grounding electrode in accordance with 830.100(B)(3).

(B) Bonding. The network-powered broadband communications cable grounding terminal, network interface unit grounding terminal, if present, and primary protector grounding terminal shall be bonded together with a copper bonding conductor not smaller


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than 12 AWG. The network-powered broadband communications cable grounding terminal, network interface unit grounding terminal, primary protector grounding terminal, or the grounding electrode shall be bonded to the metal frame or available grounding terminal of the mobile home with a copper bonding conductor not smaller than 12 AWG under any of the following conditions:



830.110 Raceways, Cable Routing Assemblies, and Cable Trays for Network-Powered Broadband Communications Cables.

(A) Types of Raceways. Low-power network-powered broadband communications cables shall be permitted to be installed in any raceway that complies with shall be permitted to be installed in any raceway that complies with either 830.110(A)(1) or (A)(2).

(1) Raceways Recognized in Chapter 3. Low- and medium-power network-powered broadband communications cables shall be permitted to be installed in any raceway included in Chapter 3. The raceways shall be installed in accordance with the requirements of Chapter 3.

(2) Communications Raceways. Low- and medium-power network-powered broadband communications cables shall be permitted to be installed in plenum listed communications raceways that comply with 800.110(A)., riser communications raceways, and general-purpose communications raceways, selected in accordance with Table 805.15 4(b) , listed in accordance with 805.182, and installed in accordance with 805.113 and 362.24 through 362.56, where the requirements applicable to electrical nonmetallic tubing (ENT) apply.

(3) lnnerduct for Low-Power Network-Powered Broadband Communications Cables. Listed plenum communications raceways that comply with 800.110(B), listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805.154(b) shall be permitted to be installed as innerduct in any type of listed raceway permitted in Chapter 3.

(B) Raceway Fill for Network-Powered Broadband Communications Cables. Raceway fill for network-powered broadband communications cables shall comply with either 830.100110(B)(1) or (B)(2).

(1) Low-Power Network-Powered Broadband Communications Cables. The raceway fill requirements of Chapters 3 and 9 shall not apply to low-power network-powered broadband communications cables.

(2) Medium-Power Network-Powered Broadband Communications Cables. Where medium-power network-powered broadband communications cables are installed in a raceway, the raceway fill requirements of Chapters 3 and 9 shall apply.

(C) Cable Routing Assemblies. Low-power network-powered broadband communications cables shall be permitted to be installed in plenum listed cable routing assemblies that comply with 800.110(C)., riser cable routing assemblies, and general-purpose cable routing assemblies selected in accordance with Table 805.154(c) , listed in accordance with 805.182, and installed in accordance with 805.110(C) and 805.113.

(D) Cable Trays. Network-powered broadband communications cables shall be permitted to be installed in metal or listed nonmetallic cable tray systems.


Installation of network-powered broadband communications cables shall comply with 830.113(A) through (I). Installation of raceways and cable routing assemblies shall comply with 830.110.

(A) Listing. Network-powered broadband communications cables installed in buildings shall be listed.

(B) Ducts Specifically Fabricated for Environmental Air. The following cables shall be permitted in ducts specifically fabricated for environ mental air as described in 300.22(B) if they are directly associated with the air distribution system:

(1) Up to 1.22 m (4 ft) of Type BLP (2) Types BLP, BMR, BLR, BM, BL, and BLX installed in raceways that are installed in compliance with 300.22(B)


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(C) Other Spaces Used for Environmental Air (Plenums). The following cables shall be permitted in other spaces used for environmental air as described in 300.22(C):

(1) Type BLP (2) Type BLP installed in plenum communications raceways (3) Type BLP installed in plenum cable routing assemblies (4) Type BLP supported by open metal cable tray systems (5) Types BLP, BMR, BLR, BM, BL, and BLX installed in raceways that are installed in compliance with 300.22(C) (6) Types BLP, BMR, BLR, BM, BL, and BLX supported by solid bottom metal cable trays with solid metal covers in

other spaces used for environmental air (plenums) as described in 300.22(C) (7) Types BLP, BLR, BM, BL, and BLX installed in plenum communications raceways, riser communications raceways,

and general -purpose communications raceways supported by solid bottom metal cable trays with solid metal covers in other spaces used for environmental air (plenums) as described in 300.22(C)


(D) Risers - Cables in Vertical Runs. The following cables shall be permitted in vertical runs penetrating one or more floors and in vertical runs in a shaft:

(1) Types BLP, BMR. and BLR (2) Types BLP and BLR installed in the following:

a. Plenum communications raceways b. Plenum cable routing assemblies c. Riser communications raceways d. Riser cable routing assemblies


(E) Risers – Cables and Inneducts in Metal Raceways. The following cables and innerducts shall be permitted in metal raceways in a riser having firestops at each floor:

(1) Types BLP, BMR. BLR, BM, BL, and BLX (2) Types BLP, BLR, and BL installed in the following:



(F) Risers - Cables in Fireproof Shafts. The following cables shall be permitted to be installed in fireproof riser shafts having firestops at each floor:

(1) Types BLP, BMR. BLR, BM, BL, and BLX (2) Types BLP, BLR, and BL cables installed in the following:



(G) Risers - One- and Two-Family Dwellings, The following cables shall be permitted in one- and two-family dwellings:

(1) Types BLP, BMR, BLR, BM, BL, and BLX less than 10 mm (¾ in.) in diameter (2) Types BLP, BLR, and BL installed in the following:

a. Plenum communications raceways b. Plenum cable routing assemblies c. Riser communications raceways


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d. Riser cable routing assemblies e. General-purpose communications raceways f. General-purpose cable routing assemblies


(H) Cable Trays. The following cables shall be permitted to be supported by cable trays:

(1) Types BLP, BMR, BLR, BM and BL (2) Types BLP, BLR, and BL installed in the following:


(I) Other Building Locations. The following cables shall be permitted to be installed in building locations other than the locations covered in 830.113(B) through (H)

(1) Types BLP, BMR, BLR, BM, and BL (2) Types BLP, BMR, BLR, BM, BL, and BLX installed in raceways recognized in Chapter 3 (3) Types BLP, BLR, and BL installed in the following:


(4) Type BLX less than 10 mm (¾ in.) in diameter in one- and two-family dwellings (5) Types BMU and BLU entering the building from outside and run in rigid metal conduit (RMC) or intermediate metal

conduit (IMC) where the conduit is connected by a bonding conductor or grounding electrode conductor in accordance with 830.100(B)

Informational Note: This provision limits the length of Type BLX cable to 15 m (50 ft), while 830.90(6) requires that the primary protector, or NIU with integral protection, be located as close as practicable to the point at which the cable enters the building. Therefore, in installations requiring a primary protector, or NIU with integral protection, Type BLX cable may not be permitted to extend 15 m (50 ft) into the building if it is practicable to place the primary protector closer than 15 m (50 ft) to the entrance point.

(6) A maximum length of 15 m (50 ft), within the building, of Type BLX cable entering the building from outside and terminating at an NIU or a primary protection location

830.133 Installation of Network-Powered Broadband Communications Cables and Equipment. Cable and equipment installations within buildings shall comply with 830.133(A)and (B), as applicable.


(a) Low- and Medium-Power Network-Powered Broadband Communications Circuit Cables. Low- and medium-power network-powered broadband communications cables shall be permitted in the same raceway, cable tray, box, enclosure, or cable routing assembly.

(b) Low-Power Network-Powered Broadband Communications Circuit Cables with Other Circuits. Low-power network-powered broadband communication s cables shall be permitted in the same raceway, cable tray, box, enclosure, or cable routing assembly with jacketed cables of any of the following circuits: (1) Class 2 and Class 3 remote-control, signaling, and power-limited circuits in compliance with Parts I and Ill of

Article 725 (2) Power-limited fire alarm systems in compliance with Parts I and Ill of Article 760 (3) Communications circuits in compliance with Parts I and V of Article 805 (4) Nonconductive and conductive optical fiber cables in compliance with Parts I and V of Article 770 (5)Community antenna television and radio distribution systems in compliance with Parts I and V of Article 820

(c) Medium-Power Network-Powered Broadband Communications Circuit Cables with Optical Fiber Cables and Other Communications Cables. Medium- power network-powered broadband communication s cables shall not be permitted in the same raceway, cable tray, box, enclosure, or cable routing assembly with conductors of any of the following circuit s:


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(1) Communication s circuit s in compliance with Parts I and V of Article 805 (2) Conductive optical fiber cables in compliance with Parts I and V of Article 770 (3) Community antenna television and radio distribution systems in compliance with Parts I and V of Article 820

(d) Medium-Power Network-Powered Broadband Communications Circuit Cables with Other Circuits. Medium-power network-powered broadband communications cables shall not be permitted in the same raceway, cable tray, box, enclosure, or cable routing assembly with conductors of any of the following circuits: (1) Class 2 and Class 3 remote-control, signaling, and power-limited circuits in compliance with Parts I and Ill of

Article 725 (2) Power-limited fire alarm systems in compliance with Parts I and Ill of Article 760

(e) Electric Light, Power, Class 1, Non- Powered Broadband Communications Circuit Cables. Network-powered broadband communication s cable shall not be placed in any raceway, cable tray, compartment, outlet box, junction box, or similar fittings with conductors of electric light, power, Class 1, or non- power-limited fire alarm circuit cables.

Exception No. 1: Where all of the conductors of electric light, power, Class 1, non- power-limited fire alarm circuits are separated from all of the network- powered broadband communications cables by a permanent barrier or listed divider.

Exception No. 2: Power circuit conductors in outlet boxes, junction boxes, or similar fittings or compartments where such conductors are introduced solely for power supply to the network-powered broadband communications system distribution equipment. The power circuit conductors shall be routed within the enclosure to maintain a minimum 6 mm (1/4 in.) separation from network-powered broadband communications cables

(2) Other Applications. Network-powered broadband communications cable shall be separated at least 50 mm (2 in.) from conductors of any electric light, power, Class 1, and non-power-limited fire alarm circuits.

Exception No. 1: Separation shall not be required where: (1) all of the conductors of electric light, power, Class 1, and non- power-limited fire alarm circuits are in a raceway, or in metal-sheathed, metal-clad, nonmetallic-sheathed, Type AC, or Type UF cables, or (2) all of the network-powered broadband communications cables are encased in a raceway.

Exception No. 2: Separation shall not be required where the network-powered broadband communications cables are permanently separated from the conductors of electric light, power, Class 1, and non- power-limited fire alarm circuits by a continuous and firmly fixed nonconductor, such as porcelain tubes or flexible tubing, in addition to the insulation on the wire.

(B) Support of Network-Powered Broadband Communications Cables. Raceways shall be used for their intended purpose. Network-powered broadband communications cables shall not be strapped, taped, or attached by any means to the exterior of any conduit or raceway as a means of support.

830.154 Applications of Network-Powered Broadband Communications Equipment and Cables. Permitted and nonpermitted applications of listed network-powered broadband communications system cables shall be as indicated in Table 830.154(a). The permitted applications shall be subject to the installation requirements of 830.40, 830.110, and 830.113. The substitutions for network-powered broadband system cables listed in Table 830.154(b) shall be permitted.

Informational Note: The substitute cables in Table 820 .154(b) and Figure 820.154 are only coaxial-type cables.


Applications

Wire and Cable Type

BLP BLR BL BMR BM BLX BMU, BLU


In fabricated ducts Y* N N N N N N

In metal raceway that complies with 300.22(B) Y* Y* Y* Y* Y* Y* N


In other spaces used for environmental air Y* N N N N N N

In metal raceway that complies with 300.22(C) Y* Y* Y* Y* Y* Y* N

In plenum communications raceways Y* N N N N N N

In plenum cable routing assemblies NOT PERMITTED

Supported by open metal cable trays Y* N N N N N N


Y* Y* Y* Y* Y* Y* N


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In risers In vertical runs Y* Y* N Y* N N N



In plenum communications raceways Y* Y* N N N N N

In plenum cable routing assemblies Y* Y* N N N N N

In riser communications raceways Y* Y* N N N N N

In riser cable routing assemblies Y* Y* N N N N N

In one - and two -family dwellings Y* Y* Y* Y* Y* Y* N



In one- and two-family dwellings Y* Y* Y* Y* Y* Y* N

Supported by cable trays Y* Y* Y* Y* Y* Y* N

In rigid metal conduit (RMC) and intermediate metal conduit (IMC)

Y* Y* Y* Y* Y* Y* Y*

In any raceway recognized in Chapter 3 Y* Y* Y* Y* Y* Y* N

In plenum communications raceways Y* Y* Y* N N N N

In plenum cable routing assemblies Y* Y* Y* N N N N

In riser communication s raceways Y* Y* Y* N N N N

In riser cable routing assemblies Y* Y* Y* N N N N

In general-purpose communications raceways Y* Y* Y* N N N N

In general-purpose cable routing assemblies Y* Y* Y* N N N N


Informational Note No. 1: Part V of Article 830 covers installation methods within buildings. This table covers the applications of listed network-powered broadband communications cables in buildings. The definition of Point of Entrance is in 830.2800.2.

Informational Note No. 2: For information on the restrictions to the installation of network-powered broadband communications cables in ducts specifically fabricated for environmental air, see 830.113(B).



BM BMR

BLP CMP, CL3P



BLX CMP, CMR, CM, CMG, CMX, CL3P, CL3R, CL3, CL3X, BMR, BM, BLP, BRPBLR, BL

830.160 Bends. Bends in network broadband cable shall be made so as not to damage the cable.


830.179 Network-Powered Broadband Communications Equipment and Cables. Network-powered broadband communications equipment and cables shall be listed and marked in accordance with 830.179(A) or (B). Network-powered broadband communications cables shall have a temperature rating of not less than 60°C (140°F). The temperature rating shall be marked on the jacket of network-powered broadband communications cables that have a temperature rating exceeding 60°C (140°F).

Exception 1: This listing requirement shall not apply to community antenna television and radio distribution system coaxial cables that were installed prior to January 1, 2000, in accordance with Article 820 and are used for low-power network-powered broadband communications circuits.

Exception 2: Substitute cables for network-powered broadband communications cables shall be permitted as shown in Table 830.154(b).


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(A) Network-Powered Broadband Communications Medium-Power Cables. Network-powered broadband communications medium-power cables shall be factory-assembled cables consisting of a jacketed coaxial cable, a jacketed combination of coaxial cable and multiple individual conductors, or a jacketed combination of an optical fiber cable and multiple individual conductors. The insulation for the individual conductors shall be rated for 300 volts minimum. Cables intended for outdoor use shall be listed as suitable for the application. Cables shall be marked in accordance with 310.8.

(1) Type BMR. Type BMR cables shall be listed in accordance with 800.179(B). as being suitable for use in a vertical run in a shaft or from floor to floor and shall also be listed as having fire-resistant

characteristics capable of preventing the carrying of fire from floor to floor.


(2) Type BM. Type BM cables shall be listed in accordance with 800.179(C).as being suitable for general-purpose use, with the exception of risers and plenums, and shall also be listed as being resistant to the spread of fire.



(3) Type BMU. Type BMU cables shall be jacketed and listed as being suitable for outdoor underground use.

(B) Network-Powered Broadband Communication Low-Power Cables. Network-powered broadband communications low-power cables shall be factory-assembled cables consisting of a jacketed coaxial cable, a jacketed combination of coaxial cable and multiple individual conductors , or a jacketed combination of an optical fiber cable and multiple individual conductors. The insulation for the individual conductors shall be rated for 300 volts minimum. Cables intended for outdoor use shall be listed as suitable for the application. Cables shall be marked in accordance with 310.8.

(1) Type BLP. Type BLP cables shall be listed in accordance with 800.179(A).as being suitable for use in ducts, plenums, and other spaces used for environmental air and shall also be listed as having adequate fire-resistant and low-smoke producing characteristics.

Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0. 50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces.

(2) Type BLR. Type BLR cables shall be listed in accordance with 800.179(B).as being suitable for use in a vertical run in a shaft, or from floor to floor, and shall also be listed as having fire-resistant characteristics capable of preventing the carrying of fire from floor to floor.


(3) Type BL. Type BL cables shall be listed in accordance with 800.179(C).as being suitable for general-purpose use, with the exception of risers and plenums, and shall also be listed as being resistant to the spread of fire.



(4) Type BLX. Type BLX limited-use cables shall be listed in accordance with 800.179(D)as being suitable for use outside, for use in dwellings, and for use in raceways and shall also be listed as being resistant to flame spread.


(5) Type BLU. Type BLU cables shall be jacketed and listed as being suitable for outdoor underground use.



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Article 840 Premises-Powered Broadband Communications Systems Part I. General

840.1 Scope. This article covers premises-powered broadband communications systems.

Informational Note No. 1: A typical basic system configuration consists of an optical fiber, twisted pair, or coaxial cable to the premises supplying a broadband signal to a network terminal that converts the broadband signal into component electrical signals, such as traditional telephone, video, high-speed Internet, and interactive services. Powering for the network terminal and network devices is typically accomplished through a premises power supply that might be built into the network terminal or provided as a separate unit. In order to provide communications in the event of a power interruption, a battery backup unit or an uninterruptible power supply (UPS) is typically part of the powering system.

Informational Note No. 2: See 90.2(6 )(4) for installations of premises-powered broadband communications systems that are not covered in this article.

840.2 Definitions. The definitions in Part I of Article 100, 770.2, 800, 805.2, and 820.2 shall apply. The definitions in this section shall apply only within Article 840. Broadband. Wide bandwidth data transmission that transports multiple signals, protocols, and traffic types over various media types. Communications Service Provider. An organization, business, or individual that offers communications service to others. Network Terminal. A device that converts network-provided signals (optical, electrical, or wireless) into component signals, including voice, audio, video, data, wireless, optical, and interactive services, and is consider ed a network device on the premises that is connected to a communications service provider and is powered at the premises. Premises Communications Circuit. The circuit that extends voice, audio, video, data, interactive services, telegraph (except radio), and outside wiring for fire alarm and burglar alarm from the service provider's network terminal to the customer's communications equipment up to and including terminal equipment, such as a telephone, a fax machine, or an answering machine. Premises Community Antenna Television (CATV) Circuit. The circuit that extends community antenna television (CATV) systems for audio, video, data, and interactive services from the service provider's network terminal to the appropriate customer equipment. Premises-Powered. Using power provided locally from the premises.

840.3 Other Articles. Circuits and equipment shall comply with 840.3(A) through (GC). Only those sections of Chapters 1 through 7 referenced in Article 840 shall apply to premises- powered broadband communications systems.

(A) General Requirements for Communications Systems. Article 800 shall apply to communications circuits unless modified by Article 840.

(A) Hazardous (Classified) locations. Premises-powered broadband communications circuits and equipment installed in a location that is classified in accordance with 500.5 and 505.5 shall comply with the applicable requirements of Chapter 5.

(B) Cables in Ducts for Dust, Loose Stock, or Vapor Removal. The requirements of 300.22(A), 770.3(8,) 805.3(8), and 820.3(8) shall apply.


(D) Installation and Use. The requirements of 110.3(8) shall apply.

(E) Output Circuits. As appropriate for the services provided, the output circuits derived from the network terminal shall comply with the requirements of the following:

(1) Installations of communications circuits – Part V of Article 805 (2) Installations of premises (within buildings) community antenna television and radio distribution circuits - Part V of


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Article 820 (3) Installations of optical fiber cables - Part V of Article 770 (4) Installations of Class 2 and Class 3 circuits - Part Ill of Article 725

Informational Note: See 725.121 for information on the classification of information technology equipment circuits.

(5) Installations of power-limited fire alarm circuits - Part Ill of Article 760

(FC) Other Communications Systems. As appropriate for the system involved, traditional communications systems shall comply with the requirements of the following:

(1) Communications Circuits - Article 800 (2) Radio and Television Equipment- Article 810 (3) Community Antenna Television and Radio Distribution Systems - Article 820 (4) Network-Powered broadband Communications Systems - Article 830

(GD) Electrical Classification of Data Circuits and Cables. Sections 725.139(D)(1) and 800.133(A)(1)(b) shall apply to the electrical classification of Class 2 and Class 3 circuits in the same cable with communications circuits.

840.21 Access to Electrical Equipment Behind Panels Designed to Allow Access. Access to electrical equipment shall not be denied by an accumulation of premises-powered broadband cables that prevents removal of panels, including suspended ceiling panels.

840.24 Mechanical Execution of Work. The requirements of 770.24, 805.24, and 820.24 shall apply.

840.25 Abandoned Cables. The requirements of 770.25, 805.25, and 820800.25 shall apply.

840.26 Spread of Fire or Products of Combustion. The requirements of 770.26, 805.26, and 820.26 shall apply.

840.27 Temperature Limitations of Wires and Cables. No wire or cable shall be used in such a manner that its operating temperature exceeds that of its rating.


840.44 Overhead (Aerial) Optical Fiber Cables. Overhead (aerial) optical fiber cables containing a non- current-carrying metallic member entering buildings shall comply with 770.44(A) and (B).

840.45 Overhead (Aerial) Communications Wires and Cables. Section 800.44 shall apply to overhead (aerial) communications wires and multipair communications cables.

840.46 Overhead (Aerial) Coaxial Cables. Section 820.44 shall apply to overhead (aerial) coaxial cables.

840.47 Underground Wires and Cables Entering Buildings. Underground wires and cables entering buildings shall comply with 800.47 and 840.47(A) through (C).

(A) Optical Fiber Cables. (1) Class 1 or Non- Power-Limited Fire Alarm Circuits.

Underground conductive optical fiber cables entering buildings with electric light, power, Class 1, or non- power-limited fire alarm circuit conductors in a raceway, handhole enclosure, or manhole shall be located in a section separated from such conductors by means of brick, concrete, or tile partitions or by means of a suitable barrier.

(2) Direct-Buried Cables. Direct-buried conductive optical fiber cables shall be separated by at least 300 mm (12 in.)



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from conductors of any electric light, power, or non- power-limited fire alarm circuit conductors or Class 1 circuit.

Exception No. 1: Separation shall not be required where the electric service conductors are installed in raceways or have metal cable armor.

Exception No. 2: Separation shall not be required where the electric light or power branch-circuit or feeder conductors, non- power-limited fire alarm circuit conductors, or Class 1 circuit conductors are installed in a raceway or in metal-sheathed, metal-clad, or Type UF or Type USE cables.

(3) Mechanical Protection. Direct-buried cable, conduit , or other raceway shall be installed to have a minimum cover of 150 mm (6 in.).

(B) Communications Wires and Cables. Installations of communications wires and multipair communications cables shall comply with 805.47.

(C) Coaxial Cables. Installations of coaxial cables shall comply with 820.47.

840.48 Unlisted Wires and Cables Entering Buildings. Installations of unlisted cables entering buildings shall comply with 840.48(A), (B), or (C), as applicable.

(A) Optical Fiber Cables. Installations of unlisted optical fiber cables entering buildings shall comply with 770.48.

(B) Communications Wires and Cables. Installations of unlisted communications wires and unlisted multipair communications cables entering buildings shall comply with 805.48.

(C) Coaxial Cables. Installations of unlisted coaxial cables entering buildings shall comply with 820.48.

840.49 Metallic Entrance Conduit Grounding. The requirements of 770.49, 805.49, and 820.49 shall apply, as applicable.


840.90 Protective Devices. The requirements of 805.90 shall apply.

840.93 Grounding or Interruption. Non-current-carrying metallic members of optical fiber cables, communications cables, or coaxial cables entering buildings or attaching to buildings shall comply with 840.93(A), (B), or (C), respectively.

(A) Non -Current-Carrying Metallic Members of Optical Fiber Cables. Non- current-carrying metallic members of optical fiber cables entering a building or terminating on the outside of a building shall comply with 770.93(A) or (B).

(B) Communications Cables. The grounding or interruption of the metallic sheath of communications cable shall comply with 805.93.

(C) Coaxial Cables. Where the network terminal is installed inside or outside of the building, with coaxial cables terminating at the network terminal, and is either entering, exiting, or attached to the outside of the building, 820.93 shall apply.

840.94 Premises Circuits Leaving the Building. Where circuits leave the building to power equipment remote to the building or outside the exterior zone of protection defined by a 46 m (150 ft) radius rolling sphere, 805.90 and 805.93 shall apply.

Informational Note: See NFPA780-2017, Standard for the Installation of Lightning Protection Systems, for the theory of the term rolling sphere.


840.100 Network Terminal and Cable Grounding. Grounding required for protection of the network terminal, conductive optical fiber cables, multipair communications cables, antenna lead-in conductors, and coaxial cables shall comply with 770.100, 805.100, 810.21, or 820.100 and 800.100, as applicable.


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840.101 Premises Circuits Not Leaving the Building. Where the network terminal is served by a nonconductive optical fiber cable , or where any non- current-carrying metallic member of a conductive optical fiber cable is interrupted by an insulating joint or equivalent device, and circuits that terminate at the network terminal are completely contained within the building (i.e., they do not exit the building), 840.101(A), (B), or (C) shall apply, as applicable.

(A) Coaxial Cable Shield Grounding. The shield of coaxial cable shall be grounded by one of the following:

(1) Any of the methods described in 820.100 or 820800.106 (2) A fixed connection to an equipment grounding conductor as described in 250.118 (3) Connection to the network terminal grounding terminal provided that the terminal is connected to ground by one of

the methods described in 820.100 or 820800.106, or to an equipment grounding conductor through a listed grounding device that will retain the ground connection if the network terminal is unplugged

(B) Communications Circuit Grounding. Communications circuits shall not be required to be grounded.

(C) Network Terminal Grounding. The network terminal shall not be required to be grounded unless required by its listing. If the coaxial cable shield is separately grounded as described in 840.101(A)(1) or 840.101(A)(2), the use of a cord and plug for the connection to the network terminal grounding connection shall be permitted.

Informational Note: Where required to be grounded, a listed device that extends the equipment grounding conductor from the receptacle to the network terminal equipment grounding terminal is permitted. Sizing of the extended equipment grounding conductor is covered in Table 250.122 .

840.102 Premises Circuits Leaving the Building. Where circuits leave the building to power equipment remote to the building or outside the exterior zone of protection defined by a 46 m (150 ft) radius rolling sphere, 805800.100 and 805800.106 shall apply.

Informational Note: See NFPA 780-2017, Standard for the Installation of Lightning Protection Systems, for the theory of the term rolling sphere.


(A) Grounding. As applicable, grounding of communication wire and cables, CATV Type coaxial cables, and network terminals shall comply with 800.106. Grounding of non-current-carrying metallic members of optical fiber cables shall comply with 840.106(A)(1) and (A)(2).

(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the non- current-carrying metallic members of optical fiber cables shall be connected to a grounding electrode in accordance with 770.106(A)(1). The network terminal, if required to be grounded, shall be connected to a grounding electrode in accordance with 805.106(A)(1). Premises CATV circuits shall be grounded in accordance with 820.106(A)(1), unless the network terminal is listed to provide the grounding path for the shield of the coaxial cable. The grounding electrode shall be bonded in accordance with 770.106(B).

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the non-current-carrying metallic members of optical fiber cables shall be connected to a grounding electrode in accordance with 770.106(A)(2). The network terminal, if required to be grounded, shall be connected to a grounding electrode in accordance with 805.106(A)(2). Premises CATV circuits shall be grounded in accordance with 820.106(A)(2), unless the network terminal is listed to provide the grounding path for the shield of the coaxial cable. The grounding electrode shall be bonded in accordance with 770.106(B).

(B) Bonding. The network terminal grounding terminal or grounding electrode shall be connected to the metal frame or available grounding terminal of the mobile home with a copper conductor not smaller than 12 AWG under any of the following condition s:

(1) Where there is no mobile home service equipment or disconnecting means as specified in 840.106(A). (2) Where the mobile home is supplied by cord and plug.



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840.110 Raceways and Cable Routing Assemblies. Installations of raceways and cable routing assemblies for premises-powered broadband communications cables shall comply with 840.110(A), (B), or (C) as applicable.

(A) Optical Fiber Cables. The requirements of 770.110 shall apply.

(B) Multipair Communications Cables. The requirements of 805.110 shall apply.

(C) Coaxial Cables. The requirements of 820.110 shall apply.

840.113 Installation on the Customer Premises Side of the Network Terminal. Installation of premises communications circuits and premises coaxial circuits shall comply with 840.113(A) or (B) as applicable.

(A) Premises Communications Circuits. Premises communications wires and multipair cables installed in a building from the network terminal shall be listed in accordance with 805.179, and the installation shall comply with 805.113 and 805.133.

(B) Premises Community Antenna Television (CATV) Circuits. Premises CATV coaxial cables installed in a building from the network terminal shall be listed in accordance with 820.179, and the installation shall comply with 820.113 and 820.133.

840.133 Installation of Optical Fibers and Electrical Conductors. The requirements of 770.133 shall apply.

840.154 Applications of Listed Optical Fiber Cables. The requirements of 770.154 shall apply.

Part VI. Premises Powering of Communications Equipment over Communications Cables

840.160 Powering Circuits. Communications cables listed in accordance with 805.179, in addition to carrying the communications circuit, shall also be permitted to carry circuits for powering communications equipment listed in accordance with 805.170. The power source shall be listed in accordance with 840.170(G). Installation of the listed communications cables shall comply with 725.144 where communications cables are substituted for Class 2 and Class 3 cables in accordance with 725.154(A).

Exception: Installing communications cables in compliance with 725.144 shall not be required for listed 4-pair communications cables where the rated current does not exceed 0.3 amperes in any conductor 24 AWG or larger.

Informational Note: A typical communications cable for this application is a 4-pair cable sometimes referred to as Category 5e (or higher) LAN cable or balanced twisted-pair cable. These types of cables are often used to provide Ethernet- and Power over Ethernet (PoE) type services. A large number of such powering cables bundled together can cause overheating of the wiring if not controlled as described in Table 725.144.

Part VII. Listing Requirements

840.170 Equipment and Cables. Premises-powered broadband communications systems equipment and cables shall comply with 840.170(A) through (H).

(A) Network Terminal. The network terminal and applicable grounding means shall be listed for application with premises-powered broadband communications systems.

Informational Note No. 1: One way to determine applicable requirements is to refer to ANSI/UL60950-1-2014, Standard for Safety of Information Technology Equipment, ANSI/UL 498A- 2015, Current Taps and Adapters-, ANSIIUL467-2013, Grounding and Bonding Equipment; or ANSI/UL 62368-1-2014, Audio Video, Information and Communication Technology Equipment - Part tꞏ Safety Requirements.

Informational Note No. 2: There are no requirements on the network terminal and its grounding methodologies except for those covered by the listing of the product.

(B) Optical Fiber Cables.


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Optical fiber cables shall be listed in accordance with 770.179(A) through (D) and shall be marked in accordance with Table 770.179.

(C) Communications Equipment. Communications equipment shall be listed in accordance with 800805.170.

(D) Cable Routing Assemblies and Communications Raceways. Cable routing assemblies and communications raceways shall be listed in accordance with 805800.182.

(E) Premises Communications Wires and Cables. Communications wires and cable shall be listed and marked in accordance with 805.179.

(F) Premises Community Antenna Television (CATV) Circuits. Premises community antenna television (CATV) coaxial cables connecting to the network terminal shall be listed in accordance with 820.179. Applicable grounding means shall be listed for application with premises-powered broadband communications systems.

(G) Power Source. The power source for circuits in tended to provide power over communications cables to remote equipment shall be limited in accordance with Table 11(B) in Chapter 9 for voltage sources up to 60 V dc and be listed as specified in either of the following:

(1) A power source shall be listed as specified in 725.121(A)(1), (A)(2), (A)(3), or (A)(4). The power sources shall not have the output connections paralleled or otherwise interconnected unless listed for such interconnection.


Informational Note: One way to determine applicable requirements is to refer to ANSI/UL60950-1-2014, Standard for Safety of Information Technology Equipment-Safety- Part 1; or ANSII\UL 62368-1-2014, Audio Video, Information and Communication Technology Equipment- Part 1: Safety Requirements. Typically, such circuits are used to interconnect equipment for the purpose of exchanging information {data).

(H) Accessory Equipment. Communications accessory equipment and/or assemblies shall be listed for application with premises-powered communications systems.

Informational Note: One way to determine applicable requirements is to refer to ANSI/UL1863-2004, Communications-Circuit Accessories.

840.180 Grounding Devices. Where bonding or grounding is required, devices used to connect a shield, a sheath, or non- current-carrying metallic members of a cable to a bonding conductor, or grounding electrode conductor , shall be listed or be part of listed equipment.


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Public Comment No. 333-NFPA 70-2018 [ Article 800 ]

Article 800 General Requirements for Communications Systems

Part I. General

800.1 Scope

This article covers communications circuits, community antenna television and radio distribution systems,network-powered broadband communications systems, and premises-powered broadbandcommunications systems, in addition to the specific requirements in Articles 805 , 820 , 830 , and 840 .




800.2 Definitions.

See Part I of Article 100. The definitions in 800.2 shall apply only within Articles 805 , 820 , 830 , and840 .

Abandoned Cable.






Informational Note: See Part I of Article 100 for two other definitions of Exposed: Exposed (asapplied to live parts) and Exposed (as applied to wiring methods) .

Point of Entrance.

The point within a building at which the wire or cable emerges from an external wall or from a concretefloor slab. See 830.2 for additional provisions pertaining to Article 830 .

Premises.



Only those sections of Chapters 1 through 7 referenced in Chapter 8 shall apply to Chapter 8.


Circuits and equipment installed in a location that is classified in accordance with 500.5 and 505.5 shallcomply with the applicable requirements of Chapter 5.








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Access to electrical equipment shall not be denied by an accumulation of wires and cables that preventsremoval of panels, including suspended ceiling panels.


Circuits and equipment shall be installed in a neat and workmanlike manner. Cables installed exposed onthe surface of ceilings and sidewalls shall be supported by the building structure in such a manner that thecable will not be damaged by normal building use. Such cables shall be secured by hardware, includingstraps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage thecable. The installation shall also conform to 300.4(D) and 300.11. Nonmetallic cable ties and othernonmetallic cable accessories used to secure and support cables in other spaces used for environmentalair (plenums) shall be listed as having low smoke and heat release properties in accordance with805.170(C) . See 830.24 and 840.24 for additional provisions pertaining to Articles 830 and 840 .

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1- D-2015, Commercial Building Telecommunications Infrastructure Standard; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012, ResidentialTelecommunications Infrastructure Standard; ANSI/TIA-1005-A-2012, TelecommunicationsInfrastructure Standard for Industrial Premises; ANSI/ TIA-1179-2010, Healthcare FacilityTelecommunications Infrastructure Standard; ANSI/TIA-4966-2014, TelecommunicationsInfrastructure Standard for Educational Facilities; and other ANSI-approved installation standards.

Informational Note No. 2: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning andVentilating Systems , for discrete combustible components installed in accordance with 300.22(C).



The accessible portion of abandoned cables shall be removed. Where cables are identified for future usewith a tag, the tag shall be of sufficient durability to withstand the environment involved.


Installations of cables, communications raceways, cable routing assemblies in hollow spaces, verticalshafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products ofcombustion will not be substantially increased. Openings around penetrations of cables, communicationsraceways, and cable routing assemblies through fire-resistant-rated walls, partitions, floors, or ceilings shallbe firestopped using approved methods to maintain the fire resistance rating.







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(3) Climbing Space.





Metal conduit containing entrance wire or cable shall be connected by a bonding conductor or groundingelectrode conductor to the grounding electrode or the building grounding electrode system in accordancewith 800.100(B) .


800.80 Protection.

Protection of communications systems shall comply with Article 805 , Part III for communications circuits,Article 820 , Part III for community antenna television and radio distribution systems, Article 830 , Part IIIfor network-powered broadband communications systems, or Article 840 , Part III for premises-poweredbroadband communications systems.




(1) Insulation.


(2) Material.


(3) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. The bondingconductor or grounding electrode conductor shall not be required to exceed 6 AWG.


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(4) Length.



Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximumbonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate ground rodmeeting the minimum dimensional criteria of 800.100(B)(3)(2) or (B)(3)(3) shall be driven, the bondingconductor or grounding electrode conductor shall be connected to the ground rod in accordance with800.100(C) , and the ground rod shall be connected to the power grounding electrode system inaccordance with 800.100(D) .





(B) Electrode.

The bonding conductor or grounding electrode conductor shall be connected in accordance with800.100(B)(1) , (B)(2) , or (B)(3).














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If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 800.100(B)(2) , the grounding electrode conductor shall be connected to one of the following:


(2) If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 800.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes describedin 250.52(A)(5), (A)(7), and (A)(8)

(3) For communications circuits or network-powered broadband communications systems, to a groundrod or pipe not less than 1.5 m (5 ft) in length and 12.7 mm (0.5 in.) in diameter, driven, wherepracticable, into permanently damp earth and separated from lightning protection system conductors,as covered in 805.53 , and at least 1.8 m (6 ft) from electrodes of other systems

Steam, hot water pipes, or lightning protection system conductors shall not be employed as groundingelectrodes for bonding conductors or grounding electrode conductors.









Wires and cables shall be listed in accordance with 805.179 , 820.179 , 830.179 , or 840.170 asapplicable. Wires and cables shall have a temperature rating of not less than 60°C (140°F). Thetemperature rating shall be marked on the jacket of cables that have a temperature rating exceeding 60°C(140°F).



Where bonding or grounding is required, devices used to connect a shield, a sheath, or non-current-carrying metallic members of a cable to a bonding conductor or grounding electrode conductor shall belisted or be part of listed equipment.


Reject proposed new article.

This proposal would have a huge negative impact with little or no improvement in theusability of the code. The proposal seeks to create a new Chapter 8 article to movecommon requirements from individual articles to a new one. The intent is to avoidrepetition of the information. The result would complicate the use of the code bynecessitating referencing back and forth between articles. Additionally, this wouldimpact other standards bodies who refer to NEC and third‐party training organizationsrequiring them to update their material. This proposal would create extensive work withno improvement in usage of the code.

Related Item

• FR-7512


Submitter Full Name: Steven Johnson

Organization: Johnson Telecom, LLC


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Street Address:

City:

State:

Zip:

Submittal Date: Wed Aug 01 12:35:05 EDT 2018

Committee: NEC-P16


I, Steven Johnson, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am Steven Johnson, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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800.1 Scope

This article covers general requirements for communications systems and appl ies to communicationscircuits, community antenna television and radio distribution systems, network-powered broadbandcommunications systems, and premises-powered broadband communications systems, in addition to thespecific requirements in . Articles 805, 820, 830, and 840 or 840 supplement or modify therequirements in Article 800 .





FR 7512 introduced the concept of reorganization Chapter 8 and most of its articles for ease of use. This public comment is the first of many to complete the work introduced in moving and realigning content.

The text of this specific change was to align the content of the scope in word choice and style of other general scope statements utilized in other parts of the code. In order to reinforce that this revised Article 800 applied to multiple Ch 8 articles, language was used similar to that used in Article 90.3 that explains the relationship of Chapters 1-4 ("general") and Chapter 5-7 ("specific").

Related Item

• FR 7512



Organization: BICSI

Street Address:

City:

State:

Zip:


Committee: NEC-P16





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800.1 Scope

This article covers general requirements for communications circuits, community antenna television andradio distribution systems, network-powered broadband communications systems, and premises-poweredbroadband communications systems, in addition to the specific requirements in Articles 805 , 820 , 830 ,and 840 .





The addition of the phrase "general requirements for" to the scope statement clarifies that the article covers general requirements, and correlates with the structure of 300.1(A), a similar scope statement for general Article 300. Reference to Articles 805. 810, 820, 830 and 840 is not necessary here as they are referenced in 800.3(E).



Public Comment No. 164-NFPA 70-2018 [Section No. 800.3(E)]


Related Item

• FR 7512




Affiliation: ATIS

Street Address:

City:

State:

Zip:


Committee: NEC-P16





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800.1 Scope

This article covers communications circuits, Fire Alarm Circuits, Security System Circuits, Closed CircuitVideo Camera Circuits, community antenna television and radio distribution systems, network-poweredbroadband communications systems, and premises-powered broadband communications systems, inaddition to the specific requirements in Articles 805, 820, 830, and 840.





The elimination of Fire Alarm and security system circuits in the first draft leaves a gap in the code. Article 760 specifically lists article 800 to provide installation requirements for fire alarm communication circuits that extend beyond one building. The elimination of these from the scope statement causes a correlation issue and leaves a gap for proper installation of fire alarm circuits that extend beyond one building.




Related Item

• FR-7512


Submitter Full Name: Thomas Parrish

Organization: Telgian Corporation

Affiliation: AFAA

Street Address:

City:

State:

Zip:


Committee: NEC-P16


I, Thomas Parrish, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am Thomas Parrish, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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800.1 Scope

This article covers general requirements for communications systems. These general requirements applyto communications circuits, community antenna television and radio distribution systems, network-poweredbroadband communications systems, and premises-powered broadband communications systems, inaddition to the specific requirements in unless modified by Articles 805, 820, 830, and or 840.






Attachment_for_PC_43_7-17-2018.pdf


The recommended text for the revision of the scope is based on a review of the general articles in other Chapters in the Code.

Look at the scopes of the other general articles:

110.1 Scope. This article covers general requirements for the examination and approval, installation and use, access to and spaces about electrical conductors and equipment; enclosures intended for personnel entry; and tunnel installations.

300.1 Scope.(A) All Wiring Installations. This article covers general requirements for wiring methods and materials for all wiring installations unless modified by other articles in Chapter 3.

400.1 Scope. This article covers general requirements, applications, and construction specifications for flexible cords and flexible cables.

The scope statements for the other general articles all contain the phrase “This article covers general requirements”.

The recommended text for 800.1 is similar to the scope statement for Article 300. The recommended text emphasizes that Article 800 is a general article and clarifies that the general requirements are modified by the subsequent Articles in Chapter 8. Since the new general article does not include requirements for Article 810, it is necessary to list the four articles that the general requirements apply to.

PC 43 is the first PC in a group of 9 PCs submitted for Article 800. See that attached file to see how these 9 PCs fit together.



Public Comment No. 44-NFPA 70-2018[Section No. 800.2]

2nd PC in the group of PCs submitted by PLASTICS fornew general Article 800

Public Comment No. 45-NFPA 70-2018[Section No. 800.3(E)]

3rd PC in the group of PCs submitted by PLASTICS fornew general Article 800


4th PC in the group of PCs submitted by PLASTICS fornew general Article 800


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Public Comment No. 61-NFPA 70-2018 [NewSection after 800.179]




Public Comment No. 65-NFPA 70-2018 [NewSection after 800.180]



Public Comment No. 45-NFPA 70-2018[Section No. 800.3(E)]




Related Item

• FR 7512





Street Address:

City:

State:

Zip:

Submittal Date: Wed Jun 27 13:06:11 EDT 2018

Committee: NEC-P16





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Attachment for PC 43, 7/17/2018

PCs 43, 44, 45, 46, 47 48, 61 & 65 were submitted to revise the text of FR 7512. The recommended text of all of these PCs taken together is illustrated below.

Article 800 General Requirements for Communications Systems Part I. General 800.1 Scope. This article covers general requirements for communications systems. These general requirements apply to communications circuits, community antenna television and radio distribution systems, network-powered broadband communications systems, and premises-powered broadband communications systems, unless modified by in addition to the specific requirements in Articles 805, 820, 830, and or 840. Informational Note No. 1: See 90.2(B)(4) for installations of circuits and equipment that are not covered. Informational Note No. 2: For further information for remote control, signaling, and power-limited circuits, see Article 725. Informational Note No. 3: For further information for fire alarm systems, see Article 760. 800.2 Definitions. The definitions in See Part I of Article 100 shall apply. The definitions in 800.2 shall apply only within Articles 800, 805, 820, 830, and 840. Abandoned Cable. Installed cable that is not terminated as described in 805.2 for communications cable, 820.2 for CATV coaxial cable, or 830.2 for network-powered broadband communications cable and that is not identified for future use with a tag. Block. A square or portion of a city, town, or village enclosed by streets and including the alleys so enclosed, but not any street. Communications Service Provider. An organization, business, or individual that offers communications service to others. Exposed (to Accidental Contact). A circuit in such a position that, in case of failure of supports or insulation, contact with another circuit may result. Informational Note: See Part I of Article 100 for two other definitions of Exposed: Exposed (as applied to live parts) and Exposed (as applied to wiring methods).


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Point of Entrance. The point within a building at which the wire or cable emerges from an external wall or from a concrete floor slab. See 830.2 for additional provisions pertaining to Article 830. Premises. The land and buildings of a user located on the user side of the utility-user network point of demarcation. 800.3 Other Articles. Only those sections of Chapters 1 through 7 referenced in Chapter 8 shall apply to Chapter 8. (A) Hazardous (Classified) Locations. Circuits and equipment installed in a location that is classified in accordance with 500.5 and 505.5 shall comply with the applicable requirements of Chapter 5. (B) Wiring in Ducts for Dust, Loose Stock, or Vapor Removal. The requirements of 300.22(A) shall apply. (C) Equipment in Other Space Used for Environmental Air. The requirements of 300.22(C)(3) shall apply. (D) Installation and Use. The requirements of 110.3(B) shall apply. (E) Other Communications Systems. As appropriate for the system involved, communications systems shall comply with the requirements of the following:






800.21 Access to Electrical Equipment Behind Panels Designed to Allow Access. Access to electrical equipment shall not be denied by an accumulation of wires and cables that prevents removal of panels, including suspended ceiling panels. 800.24 Mechanical Execution of Work. Circuits and equipment shall be installed in a neat and workmanlike manner. Cables installed exposed on the surface of ceilings and sidewalls shall be supported by the building structure in such a manner that the cable will not be damaged by normal building use. Such cables shall be secured by hardware, including straps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage the cable. The installation shall also conform to 300.4(D) and


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300.11. Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in other spaces used for environmental air (plenums) shall be listed as having low smoke and heat release properties in accordance with 805.170(C). See 830.24 and 840.24 for additional provisions pertaining to Articles 830 and 840. Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI 568-2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1- D-2015, Commercial Building Telecommunications Infrastructure Standard; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012, Residential Telecommunications Infrastructure Standard; ANSI/TIA-1005-A-2012, Telecommunications Infrastructure Standard for Industrial Premises; ANSI/ TIA-1179-2010, Healthcare Facility Telecommunications Infrastructure Standard; ANSI/TIA-4966-2014, Telecommunications Infrastructure Standard for Educational Facilities; and other ANSI-approved installation standards. Informational Note No. 2: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems, for discrete combustible components installed in accordance with 300.22(C). Informational Note No. 3: Paint, plaster, cleaners, abrasives, corrosive residues, or other contaminants may result in an undetermined alteration of wire and cable properties. 800.25 Abandoned Cables. The accessible portion of abandoned cables shall be removed. Where cables are identified for future use with a tag, the tag shall be of sufficient durability to withstand the environment involved. 800.26 Spread of Fire or Products of Combustion. Installations of cables, communications raceways, cable routing assemblies in hollow spaces, vertical shafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products of combustion will not be substantially increased. Openings around penetrations of cables, communications raceways, and cable routing assemblies through fire-resistant-rated walls, partitions, floors, or ceilings shall be firestopped using approved methods to maintain the fire resistance rating. Informational Note: Directories of electrical construction materials published by qualified testing laboratories contain many listing installation restrictions necessary to maintain the fire-resistive rating of assemblies where penetrations or openings are made. Building codes also contain restrictions on membrane penetrations on opposite sides of a fire resistance–rated wall assembly. An example is the 600 mm (24 in.) minimum horizontal separation that usually applies between boxes installed on opposite sides of


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the wall. Assistance in complying with 800.26 can be found in building codes, fire resistance directories, and product listings. 800.27 Temperature Limitation of Wires and Cables. No wire or cable shall be used in such a manner that its operating temperature exceeds that of its rating. Part II. Wires and Cables Outside and Entering Buildings 800.44 Overhead (Aerial) Wires and Cables. Overhead (aerial) wires and cables entering buildings shall comply with 800.44(A) and 800.44 for communications cable, 820.44 for CATV coaxial cable, 830.44 for network-powered broadband communications cable, and 840.44 for premises-powered broadband communications systems. (A) On Poles and In-Span. Where wires and cables and electric light or power conductors are supported by the same pole or are run parallel to each other in-span, the conditions described in 800.44(A)(1) through (A)(3) shall be met. (1) Relative Location. Where practicable, the wires and cables shall be located below the electric light or power conductors. (2) Attachment to Cross-Arms. Wires and cables shall not be attached to a cross-arm that carries electric light or power conductors. (3) Climbing Space. The climbing space through wires and cables shall comply with the requirements of 225.14(D). 800.48 Unlisted Cables Entering Buildings. Unlisted outside plant cables shall be permitted to be installed in building spaces other than risers, ducts used for environmental air, plenums used for environmental air, and other spaces used for environmental air, where the length of the cable within the building, measured from its point of entrance, does not exceed 15 m (50 ft) and the cable enters the building from the outside and is terminated as specified in 800.48 for communications cable and 820.48 for CATV coaxial cable as applicable. The point of entrance shall be permitted to be extended from the penetration of the external wall or floor slab by continuously enclosing the entrance cables in rigid metal conduit (RMC) or intermediate metal conduit (IMC) to the point of emergence. 800.49 Metal Entrance Conduit Grounding. Metal conduit containing entrance wire or cable shall be connected by a bonding conductor or grounding electrode conductor to the grounding electrode or the building grounding electrode system in accordance with 800.100(B).


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Part III. Protection 800.80 Protection. Protection of communications systems shall comply with Article 805, Part III for communications circuits, Article 820, Part III for community antenna television and radio distribution systems, Article 830, Part III for network-powered broadband communications systems, or Article 840, Part III for premises-powered broadband communications systems. Part IV. Grounding Methods 800.100 Cable and Primary Protector Bonding and Grounding. (A) Bonding Conductor or Grounding Electrode Conductor. (1) Insulation. The bonding conductor or grounding electrode conductor shall be listed and shall be permitted to be insulated, covered, or bare. (2) Material. The bonding conductor or grounding electrode conductor shall be copper or other corrosion-resistant conductive material, stranded or solid. (3) Size. The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. The bonding conductor or grounding electrode conductor shall not be required to exceed 6 AWG. (4) Length. The bonding conductor or grounding electrode conductor shall be as short as practicable. In one- and two-family dwellings, the bonding conductor or grounding electrode conductor shall be as short as practicable, not to exceed 6.0 m (20 ft) in length. Informational Note: Similar bonding conductor or grounding electrode conductor length limitations applied at apartment buildings and commercial buildings help to reduce voltages that may be developed between the building's power and communications systems during lightning events. Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximum bonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate ground rod meeting the minimum dimensional criteria of 800.100(B)(3)(2) or (B)(3)(3) shall be driven, the bonding conductor or grounding electrode conductor shall be connected to the ground rod in accordance with 800.100(C), and the ground rod shall be connected to the power grounding electrode system in accordance with 800.100(D).


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(5) Run in Straight Line. The bonding conductor or grounding electrode conductor shall be run in as straight a line as practicable. (6) Physical Protection. Bonding conductors and grounding electrode conductors shall be protected where exposed to physical damage. Where the bonding conductor or grounding electrode conductor is installed in a metal raceway, both ends of the raceway shall be bonded to the contained conductor or to the same terminal or electrode to which the bonding conductor or grounding electrode conductor is connected. (B) Electrode. The bonding conductor or grounding electrode conductor shall be connected in accordance with 800.100(B)(1), (B)(2) , or (B)(3). (1) In Buildings or Structures with an Intersystem Bonding Termination. If the building or structure served has an intersystem bonding termination as required by 250.94, the bonding conductor shall be connected to the intersystem bonding termination. (2) In Buildings or Structures with Grounding Means. If an intersystem bonding termination is established, 250.94(A) shall apply. If the building or structure served has no intersystem bonding termination, the bonding conductor or grounding electrode conductor shall be connected to the nearest accessible location on one of the following:



(3) The power service accessible means external to enclosures using the options identified in 250.94(A), Exception



(6) The grounding electrode conductor or the grounding electrode conductor metal enclosure of the power service

(7) The grounding electrode conductor or the grounding electrode of a building or structure disconnecting means that is connected to a grounding electrode as covered in 250.32

A bonding device intended to provide a termination point for the bonding conductor (intersystem bonding) shall not interfere with the opening of an equipment enclosure. A bonding device shall be mounted on non-removable parts. A bonding device shall not be mounted on a door or cover even if the door or cover is non-removable.


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(3) In Buildings or Structures Without an Intersystem Bonding Termination or Grounding Means. If the building or structure served has no intersystem bonding termination or grounding means, as described in 800.100(B)(2), the grounding electrode conductor shall be connected to one of the following:


(2) If the building or structure served has no intersystem bonding termination or grounding means, as described in 800.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes described in 250.52(A)(5), (A)(7), and (A)(8)

(3) For communications circuits or network-powered broadband communications systems, to a ground rod or pipe not less than 1.5 m (5 ft) in length and 12.7 mm (0.5 in.) in diameter, driven, where practicable, into permanently damp earth and separated from lightning protection system conductors, as covered in 805.53, and at least 1.8 m (6 ft) from electrodes of other systems

Steam, hot water pipes, or lightning protection system conductors shall not be employed as grounding electrodes for bonding conductors or grounding electrode conductors. (C) Electrode Connection. Connections to grounding electrodes shall comply with 250.70. (D) Bonding of Electrodes. A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between the grounding electrode and power grounding electrode system at the building or structure served where separate electrodes are used. Informational Note No. 1: See 250.60 for connection to a lightning protection system. Informational Note No. 2: Bonding together of all separate electrodes limits potential differences between them and between their associated wiring systems. Part V. Installation Methods Within Buildings 800.179 Wires and Cables. Wires and cables shall be listed in accordance with 800.179, 820.179, 830.179, or 840.170 as applicable. Wires and cables shall have a temperature rating of not less than 60°C (140°F). The temperature rating shall be marked on the jacket of cables that have a temperature rating exceeding 60°C (140°F). 800.110 Communications Raceways, and Cable Routing Assemblies. Installation of communications raceways shall comply with 800.110(A) and (B). Installation of cable routing assemblies shall comply with 800.110(C).


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(A) Communications Raceways. Plenum communications raceways, riser communications raceways, and general-purpose communications raceways shall be selected in accordance with Table 800.154(a), listed in accordance with 800.182, and installed in accordance with 800.113 and 362.24 through 362.56, where the requirements applicable to electrical nonmetallic tubing (ENT) apply. (B) Innerduct. Listed plenum communications raceways, listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 800.154(a) shall be permitted to be installed as innerduct in any type of listed raceway permitted in Chapter 3. (C) Cable Routing Assemblies. Plenum cable routing assemblies, riser cable routing assemblies, and general-purpose cable routing assemblies shall be selected in accordance with Table 800.154(b), listed in accordance with 800.182, and installed in accordance with 800.110(C)(1) and (C)(2) and 800.113. (1) Horizontal Support. Cable routing assemblies shall be supported where run horizontally at intervals not to exceed 900 mm (3 ft), and at each end or joint, unless listed for other support intervals. In no case shall the distance between supports exceed 3 m (10 ft). Cable routing assemblies shall be permitted to be supported by ladder cable trays. (2) Vertical Support. Vertical runs of cable routing assemblies shall be supported at intervals not exceeding 1.2 m (4 ft), unless listed for other support intervals, and shall not have more than one joint between supports. Cable routing assemblies shall be permitted to be supported by ladder cable trays. 800.113 Installation of Communications Raceways, and Cable Routing Assemblies. Installation of communications raceways, and cable routing assemblies shall comply with 800.113(A) through (L). Installation of raceways and cable routing assemblies shall also comply with 800.110. (A) Listing. Communications raceways, and cable routing assemblies installed in buildings shall be listed. (B) Ducts Specifically Fabricated for Environmental Air. Communications raceways, and cable routing assemblies shall not be installed in ducts specifically Fabricated for Environmental Air. (C) Other Spaces Used for Environmental Air (Plenums). Plenum communications raceways, and plenum cable routing assemblies shall be permitted in other spaces used for environmental air as described in 300.22(C):


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(D) Risers — Raceways, and Cable Routing Assemblies in Vertical Runs. Plenum and riser communications raceways, and plenum and riser cable routing assemblies shall be permitted in vertical runs penetrating one or more floors and in vertical runs in a shaft: (E) Risers — Cables and Innerducts in Metal Raceways. Plenum, riser, and general-purpose communications raceways (innerducts) shall be permitted in metal raceways in a riser having firestops at each floor: (F) Risers — Raceways, and Cable Routing Assemblies in Fireproof Shafts. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in fireproof riser shafts having firestops at each floor: (G) Risers — One- and Two-Family Dwellings. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted in one- and two-family dwellings. (H) Cable Trays. Plenum, riser, and general-purpose communications raceways shall be permitted to be supported by cable trays. (I) Distributing Frames and Cross-Connect Arrays. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in distributing frames and cross-connect arrays: (J) Other Building Locations. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in building locations other than the locations covered in 800.113(B) through (I): (K) Multifamily Dwellings. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in multifamily dwellings in locations other than the locations covered in 800.113(B) through (G): (L) One- and Two-Family Dwellings. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in one- and two-family dwellings in locations other than the locations covered in 800.113(B) through 800.113(F). 800.154 Applications of Listed Communications Raceways, and Listed Cable Routing Assemblies. Permitted and nonpermitted applications of listed communications raceways, and listed cable routing assemblies, shall be in accordance with one of the following:


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(1) Listed communications raceways as indicated in Table 800.154(a) (2) Listed cable routing assemblies as indicated in Table 800.154(b) The permitted applications shall be subject to the installation requirements of 800.110 and 800.113.


Applications Listed Communications Raceway Type Plenum Riser General-purpose



In metal raceway that complies with 300.22(B) N N N


In other spaces used for environmental air Y* N N

In metal raceway that complies with 300.22(C) Y* Y* Y*




Y* Y* Y*

In risers








General Y* Y* Y*




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Under carpet, modular flooring, and planks N N N

In distributing frames and cross-connect arrays Y* Y* Y*




In general-purpose cable routing assemblies N N N

Note: An ‘N’ in the table indicates that the communications raceway type shall not be permitted to be installed in the application. A ‘Y*’ indicates that the communications raceway type shall be permitted to be installed in the application, subject to the limitations described in 800.110 and 800.113.


Applications Listed Cable Routing Assembly Type Plenum Riser General-purpose




N N N



In metal raceway that complies with 300.22(C) N N N



Supported by solid bottom metal cable trays with solid metal covers N N N


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In risers








General Y* Y* Y*










In general-purpose communications raceways N N N

Note: An ‘N’ in the table indicates that the cable routing assembly type shall not be permitted to be installed in the application. A ‘Y*’ indicates that the cable routing assembly type shall be permitted to be installed in the application, subject to the limitations described in 800.113.

Part VI. Listing Requirements 800.179 Plenum, Riser, General-Purpose and Limited-Use Cables. Plenum, riser, general-purpose and limited-use cables shall be listed in accordance with 800.179(A) through (D) and have a temperature rating of not less than 60°C (140°F). The


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temperature rating shall be marked on the jacket of cables that have a temperature rating exceeding 60°C (140°F). The cable voltage rating shall not be marked on the cable. (A) Plenum Cables. Type CMP communications plenum cables, Type CATVP community antenna television plenum coaxial cables and Type BLP network-powered broadband communications low-power plenum cables shall be listed as being suitable for use in ducts, plenums, and other spaces used for environmental air and shall also be listed as having adequate fire-resistant and low smoke-producing characteristics. Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces. (B) Riser Cables. Type CMR communications riser cables, Type CATVR community antenna television riser coaxial cables, Type BMR network-powered broadband communications medium-power riser cables and Type BLR network-powered broadband communications low-power riser cables shall be listed as being suitable for use in a vertical run in a shaft or from floor to floor and shall also be listed as having fire-resistant characteristics capable of preventing the carrying of fire from floor to floor. Informational Note: One method of defining fire-resistant characteristics capable of preventing the carrying of fire from floor to floor is that the cables pass the requirements of ANSI/UL 1666-2011, Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically in Shafts. (C) General-Purpose Cables. Type CM communications general-purpose cables, Type CATV community antenna television coaxial general-purpose cables, Type BM network-powered broadband communication medium-power general-purpose cables and Type BL network-powered broadband communication low-power general-purpose cables shall be listed as being suitable for general-purpose use, with the exception of risers and plenums, and shall also be listed as being resistant to the spread of fire. Informational Note: One method of defining resistant to the spread of fire is that the cables do not spread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” in ANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables. The smoke measurements in the test method are not applicable. Another method of defining resistant to the spread of fire is for the damage (char length) not to exceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables in Cable Trays,” as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.


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(D) Limited-Use Cables. Type CMX limited-use communications cables, Type CATVX limited-use community antenna television coaxial cables and Type BLX limited-use network-powered broadband low-power cables shall be listed as being suitable for use in dwellings and for use in raceway and shall also be listed as being resistant to flame spread. Informational Note: One method of determining that cable is resistant to flame spread is by testing the cable to the VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, Reference Standard for Electrical Wires, Cables and Flexible Cords. 800.180 Grounding Devices. Where bonding or grounding is required, devices used to connect a shield, a sheath, or non-current-carrying metallic members of a cable to a bonding conductor or grounding electrode conductor shall be listed or be part of listed equipment.

800.182 Cable Routing Assemblies and Communications Raceways. Cable routing assemblies and communications raceways shall be listed in accordance with 800.182(A) through (C). Cable routing assemblies shall be marked in accordance with Table 800.182(a). Communications raceways shall be marked in accordance with Table 800.182(b). Informational Note: For information on listing requirements for both communications raceways and cable routing assemblies, see ANSI/UL 2024-5-2015, Cable Routing Assemblies and Communications Raceways. (A) Plenum Cable Routing Assemblies and Plenum Communications Raceways. Plenum cable routing assemblies and plenum communications raceways shall be listed as having adequate fire-resistant and low-smoke-producing characteristics Informational Note No. 1: One method of defining cable routing assemblies and communications raceways that have adequate fire-resistant and low-smoke-producing characteristics is that they exhibit a maximum flame spread index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84-17a, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723-2013, Standard Test Method for Surface Burning Characteristics of Building Materials. Informational Note No. 2: Another method of defining communications raceways that have adequate fire-resistant and low-smoke-producing characteristics is that they exhibit a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces.


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Informational Note No. 3: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems, for information on materials exposed to the airflow in ceiling cavity and raised floor plenums. (B) Riser Cable Routing Assemblies and Riser Communications Raceways. Riser cable routing assemblies and riser communications raceways shall be listed as having adequate fire-resistant characteristics capable of preventing the carrying of fire from floor to floor. Informational Note: One method of defining fire-resistant characteristics capable of preventing the carrying of fire from floor to floor is that the cable routing assemblies and communications raceways pass the requirements of ANSI/UL 1666-2011, Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically in Shafts. (C) General-Purpose Cable Routing Assemblies and General-Purpose Communications Raceways. General-purpose cable routing assemblies and general-purpose communications raceways shall be listed as being resistant to the spread of fire. Informational Note: One method of defining resistant to the spread of fire is that the cable routing assemblies and communications raceways do not spread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” in ANSI/UL 1685-2011, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables.


Type Marking Plenum Cable Routing Assembly Plenum Cable Routing Assembly Riser Cable Routing Assembly Riser Cable Routing Assembly General-Purpose Cable Routing Assembly General-Purpose Cable Routing Assembly


Type Marking Plenum Communications Raceway Plenum Communications Raceway Riser Communications Raceway Riser Communications Raceway General-Purpose Communications Raceway General-Purpose Communications Raceway

SUBSTANTIATION Modification of the Scope

The recommended text for the revision of the scope is based on a review of the general articles in other Chapters in the Code.


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Look at the scopes of the other general articles:

110.1 Scope. This article covers general requirements for the examination and approval, installation and use, access to and spaces about electrical conductors and equipment; enclosures intended for personnel entry; and tunnel installations.

300.1 Scope. (A) All Wiring Installations. This article covers general requirements for wiring methods and materials for all wiring installations unless modified by other articles in Chapter 3. 400.1 Scope. This article covers general requirements, applications, and construction specifications for flexible cords and flexible cables.

The scope statements for the other general articles all contain the phrase “This article covers general requirements”. The recommended text for 800.1 is similar to the scope statement for Article 300. The recommended text emphasizes that Article 800 is a general article and clarifies that the general requirements are modified by the subsequent Articles in Chapter 8. Since the new general article does not include requirements for Article 810, it is necessary to list the four articles that the general requirements apply to.

Deletion of non-general requirements

The first draft contains many references to Articles 805 (formerly 800), 820, 830 and 840. All of these references are redundant. If the recommended text for the scope is adopted, it is clear that the subsequent Articles modify/supplement the general requirements and all the references to the other Articles in Chapter 8 should be deleted.

Deletions of all or part of the text are recommended for:

Definition of Abandoned Cable

Definition of Point of Entrance

800.3(E) Other Communications Systems

800.24 Mechanical Execution of Work

800.44 Overhead (Aerial) Wires and Cables

800.80 Protection

800.179 Wires and Cables (Note this section, even if it were not redundant, belongs I Part VI, Listing Requirements, not Part V, Installation Methods within Buildings.)


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Addition of the definition of a block

The term “block” is defined and used in Articles 805 (formerly 800) and 830. It isn’t used anywhere else in Chapter 8. The recommended text therefore adds a definition of “block” to the definitions in the general article.

Add general requirements for communications raceways, and cable routing assemblies

Communications raceways, and cable routing assemblies are used generally in Articles 805, 820 and 830. Consequently the recommended text moves the listing, applications and installation rules for communications raceways, and cable routing assemblies from Article 805 into the general Article. Simply put, that’s where they belong.

Addition of general requirements for listing of plenum, riser, general purpose and limited use cables

Articles 805, 820 and 830 all have identical listing requirements for plenum, riser, general-purpose and limited-use cables. In order to eliminate this redundancy, the recommended text for the general article includes listing requirements for these cables.

Final text of recommendation

If all the recommendations of this Public Comment are incorporated into the second draft, the text will read as follows:

Article 800 General Requirements for Communications Systems Part I. General 800.1 Scope. This article covers general requirements for communications systems. These general requirements apply to communications circuits, community antenna television and radio distribution systems, network-powered broadband communications systems, and premises-powered broadband communications systems, unless modified by Articles 805, 820, 830, or 840. Informational Note No. 1: See 90.2(B)(4) for installations of circuits and equipment that are not covered. Informational Note No. 2: For further information for remote control, signaling, and power-limited circuits, see Article 725. Informational Note No. 3: For further information for fire alarm systems, see Article 760. 800.2 Definitions. The definitions in Part I of Article 100 shall apply. The definitions in 800.2 shall apply only within Articles 800, 805, 820, 830, and 840.


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Block. A square or portion of a city, town, or village enclosed by streets and including the alleys so enclosed, but not any street. Communications Service Provider. An organization, business, or individual that offers communications service to others. Exposed (to Accidental Contact). A circuit in such a position that, in case of failure of supports or insulation, contact with another circuit may result. Informational Note: See Part I of Article 100 for two other definitions of Exposed: Exposed (as applied to live parts) and Exposed (as applied to wiring methods). Point of Entrance. The point within a building at which the wire or cable emerges from an external wall or from a concrete floor slab. Premises. The land and buildings of a user located on the user side of the utility-user network point of demarcation. 800.3 Other Articles. Only those sections of Chapters 1 through 7 referenced in Chapter 8 shall apply to Chapter 8. (A) Hazardous (Classified) Locations. Circuits and equipment installed in a location that is classified in accordance with 500.5 and 505.5 shall comply with the applicable requirements of Chapter 5. (B) Wiring in Ducts for Dust, Loose Stock, or Vapor Removal. The requirements of 300.22(A) shall apply. (C) Equipment in Other Space Used for Environmental Air. The requirements of 300.22(C)(3) shall apply. (D) Installation and Use. The requirements of 110.3(B) shall apply. 800.21 Access to Electrical Equipment Behind Panels Designed to Allow Access. Access to electrical equipment shall not be denied by an accumulation of wires and cables that prevents removal of panels, including suspended ceiling panels. 800.24 Mechanical Execution of Work. Circuits and equipment shall be installed in a neat and workmanlike manner. Cables installed exposed on the surface of ceilings and sidewalls shall be supported by the building structure in such a manner that the cable will not be damaged by normal building use. Such cables shall be secured by hardware, including straps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage the cable. The installation shall also conform to 300.4(D) and


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300.11. Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in other spaces used for environmental air (plenums) shall be listed as having low smoke and heat release properties in accordance with 805.170(C). Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI 568-2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1- D-2015, Commercial Building Telecommunications Infrastructure Standard; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012, Residential Telecommunications Infrastructure Standard; ANSI/TIA-1005-A-2012, Telecommunications Infrastructure Standard for Industrial Premises; ANSI/ TIA-1179-2010, Healthcare Facility Telecommunications Infrastructure Standard; ANSI/TIA-4966-2014, Telecommunications Infrastructure Standard for Educational Facilities; and other ANSI-approved installation standards. Informational Note No. 2: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems, for discrete combustible components installed in accordance with 300.22(C). Informational Note No. 3: Paint, plaster, cleaners, abrasives, corrosive residues, or other contaminants may result in an undetermined alteration of wire and cable properties. 800.25 Abandoned Cables. The accessible portion of abandoned cables shall be removed. Where cables are identified for future use with a tag, the tag shall be of sufficient durability to withstand the environment involved. 800.26 Spread of Fire or Products of Combustion. Installations of cables, communications raceways, cable routing assemblies in hollow spaces, vertical shafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products of combustion will not be substantially increased. Openings around penetrations of cables, communications raceways, and cable routing assemblies through fire-resistant-rated walls, partitions, floors, or ceilings shall be firestopped using approved methods to maintain the fire resistance rating. Informational Note: Directories of electrical construction materials published by qualified testing laboratories contain many listing installation restrictions necessary to maintain the fire-resistive rating of assemblies where penetrations or openings are made. Building codes also contain restrictions on membrane penetrations on opposite sides of a fire resistance–rated wall assembly. An example is the 600 mm (24 in.) minimum horizontal separation that usually applies between boxes installed on opposite sides of the wall. Assistance in complying with 800.26 can be found in building codes, fire resistance directories, and product listings.


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800.27 Temperature Limitation of Wires and Cables. No wire or cable shall be used in such a manner that its operating temperature exceeds that of its rating. Part II. Wires and Cables Outside and Entering Buildings 800.49 Metal Entrance Conduit Grounding. Metal conduit containing entrance wire or cable shall be connected by a bonding conductor or grounding electrode conductor to the grounding electrode or the building grounding electrode system in accordance with 800.100(B). Part III. Protection Part IV. Grounding Methods 800.100 Cable and Primary Protector Bonding and Grounding. (A) Bonding Conductor or Grounding Electrode Conductor. (1) Insulation. The bonding conductor or grounding electrode conductor shall be listed and shall be permitted to be insulated, covered, or bare. (2) Material. The bonding conductor or grounding electrode conductor shall be copper or other corrosion-resistant conductive material, stranded or solid. (3) Size. The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. The bonding conductor or grounding electrode conductor shall not be required to exceed 6 AWG. (4) Length. The bonding conductor or grounding electrode conductor shall be as short as practicable. In one- and two-family dwellings, the bonding conductor or grounding electrode conductor shall be as short as practicable, not to exceed 6.0 m (20 ft) in length. Informational Note: Similar bonding conductor or grounding electrode conductor length limitations applied at apartment buildings and commercial buildings help to reduce voltages that may be developed between the building's power and communications systems during lightning events. Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximum bonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate ground rod meeting the minimum dimensional criteria of 800.100(B)(3)(2) or (B)(3)(3) shall be driven, the bonding conductor or grounding


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electrode conductor shall be connected to the ground rod in accordance with 800.100(C), and the ground rod shall be connected to the power grounding electrode system in accordance with 800.100(D). (5) Run in Straight Line. The bonding conductor or grounding electrode conductor shall be run in as straight a line as practicable. (6) Physical Protection. Bonding conductors and grounding electrode conductors shall be protected where exposed to physical damage. Where the bonding conductor or grounding electrode conductor is installed in a metal raceway, both ends of the raceway shall be bonded to the contained conductor or to the same terminal or electrode to which the bonding conductor or grounding electrode conductor is connected. (B) Electrode. The bonding conductor or grounding electrode conductor shall be connected in accordance with 800.100(B)(1), (B)(2) , or (B)(3). (1) In Buildings or Structures with an Intersystem Bonding Termination. If the building or structure served has an intersystem bonding termination as required by 250.94, the bonding conductor shall be connected to the intersystem bonding termination. (2) In Buildings or Structures with Grounding Means. If an intersystem bonding termination is established, 250.94(A) shall apply. If the building or structure served has no intersystem bonding termination, the bonding conductor or grounding electrode conductor shall be connected to the nearest accessible location on one of the following:



(3) The power service accessible means external to enclosures using the options identified in 250.94(A), Exception



(6) The grounding electrode conductor or the grounding electrode conductor metal enclosure of the power service

(7) The grounding electrode conductor or the grounding electrode of a building or structure disconnecting means that is connected to a grounding electrode as covered in 250.32

A bonding device intended to provide a termination point for the bonding conductor (intersystem bonding) shall not interfere with the opening of an equipment enclosure. A


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bonding device shall be mounted on non-removable parts. A bonding device shall not be mounted on a door or cover even if the door or cover is non-removable. (3) In Buildings or Structures Without an Intersystem Bonding Termination or Grounding Means. If the building or structure served has no intersystem bonding termination or grounding means, as described in 800.100(B)(2), the grounding electrode conductor shall be connected to one of the following:


(2) If the building or structure served has no intersystem bonding termination or grounding means, as described in 800.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes described in 250.52(A)(5), (A)(7), and (A)(8)

(3) For communications circuits or network-powered broadband communications systems, to a ground rod or pipe not less than 1.5 m (5 ft) in length and 12.7 mm (0.5 in.) in diameter, driven, where practicable, into permanently damp earth and separated from lightning protection system conductors, as covered in 805.53, and at least 1.8 m (6 ft) from electrodes of other systems

Steam, hot water pipes, or lightning protection system conductors shall not be employed as grounding electrodes for bonding conductors or grounding electrode conductors. (C) Electrode Connection. Connections to grounding electrodes shall comply with 250.70. (D) Bonding of Electrodes. A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between the grounding electrode and power grounding electrode system at the building or structure served where separate electrodes are used. Informational Note No. 1: See 250.60 for connection to a lightning protection system. Informational Note No. 2: Bonding together of all separate electrodes limits potential differences between them and between their associated wiring systems. Part V. Installation Methods Within Buildings 800.110 Communications Raceways, and Cable Routing Assemblies. Installation of communications raceways shall comply with 800.110(A) and (B). Installation of cable routing assemblies shall comply with 800.110(C).


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(A) Communications Raceways. Plenum communications raceways, riser communications raceways, and general-purpose communications raceways shall be selected in accordance with Table 800.154(a), listed in accordance with 800.182, and installed in accordance with 800.113 and 362.24 through 362.56, where the requirements applicable to electrical nonmetallic tubing (ENT) apply. (B) Innerduct. Listed plenum communications raceways, listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 800.154(a) shall be permitted to be installed as innerduct in any type of listed raceway permitted in Chapter 3. (C) Cable Routing Assemblies. Plenum cable routing assemblies, riser cable routing assemblies, and general-purpose cable routing assemblies shall be selected in accordance with Table 800.154(b), listed in accordance with 800.182, and installed in accordance with 800.110(C)(1) and (C)(2) and 800.113. (1) Horizontal Support. Cable routing assemblies shall be supported where run horizontally at intervals not to exceed 900 mm (3 ft), and at each end or joint, unless listed for other support intervals. In no case shall the distance between supports exceed 3 m (10 ft). Cable routing assemblies shall be permitted to be supported by ladder cable trays. (2) Vertical Support. Vertical runs of cable routing assemblies shall be supported at intervals not exceeding 1.2 m (4 ft), unless listed for other support intervals, and shall not have more than one joint between supports. Cable routing assemblies shall be permitted to be supported by ladder cable trays. 800.113 Installation of Communications Raceways, and Cable Routing Assemblies. Installation of communications raceways, and cable routing assemblies shall comply with 800.113(A) through (L). Installation of raceways and cable routing assemblies shall also comply with 800.110. (A) Listing. Communications raceways, and cable routing assemblies installed in buildings shall be listed. (B) Ducts Specifically Fabricated for Environmental Air. Communications raceways, and cable routing assemblies shall not be installed in ducts specifically Fabricated for Environmental Air. (C) Other Spaces Used for Environmental Air (Plenums). Plenum communications raceways, and plenum cable routing assemblies shall be permitted in other spaces used for environmental air as described in 300.22(C): (D) Risers — Raceways, and Cable Routing Assemblies in Vertical Runs. Plenum and riser communications raceways, and plenum and riser cable routing assemblies


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shall be permitted in vertical runs penetrating one or more floors and in vertical runs in a shaft: (E) Risers — Cables and Innerducts in Metal Raceways. Plenum, riser, and general-purpose communications raceways (innerducts) shall be permitted in metal raceways in a riser having firestops at each floor: (F) Risers — Raceways, and Cable Routing Assemblies in Fireproof Shafts. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in fireproof riser shafts having firestops at each floor: (G) Risers — One- and Two-Family Dwellings. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted in one- and two-family dwellings. (H) Cable Trays. Plenum, riser, and general-purpose communications raceways shall be permitted to be supported by cable trays. (I) Distributing Frames and Cross-Connect Arrays. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in distributing frames and cross-connect arrays: (J) Other Building Locations. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in building locations other than the locations covered in 800.113(B) through (I): (K) Multifamily Dwellings. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in multifamily dwellings in locations other than the locations covered in 800.113(B) through (G): (L) One- and Two-Family Dwellings. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in one- and two-family dwellings in locations other than the locations covered in 800.113(B) through 800.113(F). 800.154 Applications of Listed Communications Raceways, and Listed Cable Routing Assemblies. Permitted and nonpermitted applications of listed communications raceways, and listed cable routing assemblies, shall be in accordance with one of the following: (1) Listed communications raceways as indicated in Table 800.154(a)


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(2) Listed cable routing assemblies as indicated in Table 800.154(b) The permitted applications shall be subject to the installation requirements of 800.110 and 800.113.








In metal raceway that complies with 300.22(C) Y* Y* Y*




Y* Y* Y*

In risers








General Y* Y* Y*





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In general-purpose cable routing assemblies N N N







N N N



In metal raceway that complies with 300.22(C) N N N



Supported by solid bottom metal cable trays with solid metal covers N N N



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General Y* Y* Y*










In general-purpose communications raceways N N N


Part VI. Listing Requirements 800.179 Plenum, Riser, General-Purpose and Limited-Use Cables. Plenum, riser, general-purpose and limited-purpose cables shall be listed in accordance with 800.179(A) through (D) and have a temperature rating of not less than 60°C (140°F).


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The temperature rating shall be marked on the jacket of cables that have a temperature rating exceeding 60°C (140°F). The cable voltage rating shall not be marked on the cable. (A) Plenum Cables. Type CMP communications plenum cables, Type CATVP community antenna television plenum coaxial cables and Type BLP network-powered broadband communication low-power plenum cables shall be listed as being suitable for use in ducts, plenums, and other spaces used for environmental air and shall also be listed as having adequate fire-resistant and low smoke-producing characteristics. Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces. (B) Riser Cables. Type CMR communications riser cables, Type CATVR community antenna television riser coaxial cables, Type BMR network-powered broadband communication medium-power riser cables and Type BLR network-powered broadband communication low-power riser cables shall be listed as being suitable for use in a vertical run in a shaft or from floor to floor and shall also be listed as having fire-resistant characteristics capable of preventing the carrying of fire from floor to floor. Informational Note: One method of defining fire-resistant characteristics capable of preventing the carrying of fire from floor to floor is that the cables pass the requirements of ANSI/UL 1666-2011, Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically in Shafts. (C) General-Purpose Cables. Type CM communications general-purpose cables, Type CATV community antenna television coaxial general-purpose cables, Type BM network-powered broadband communications medium-power general-purpose cables and Type BL network-powered broadband communications low-power general-purpose cables shall be listed as being suitable for general-purpose use, with the exception of risers and plenums, and shall also be listed as being resistant to the spread of fire. Informational Note: One method of defining resistant to the spread of fire is that the cables do not spread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” in ANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables. The smoke measurements in the test method are not applicable. Another method of defining resistant to the spread of fire is for the damage (char length) not to exceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables in Cable Trays,” as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.


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(D) Limited-Use Cables. Type CMX limited-use communications cables, Type CATVX limited-use community antenna television coaxial cables and Type BLX limited-use network-powered broadband low-power cables shall be listed as being suitable for use in dwellings and for use in raceway and shall also be listed as being resistant to flame spread. Informational Note: One method of determining that cable is resistant to flame spread is by testing the cable to the VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, Reference Standard for Electrical Wires, Cables and Flexible Cords. 800.180 Grounding Devices. Where bonding or grounding is required, devices used to connect a shield, a sheath, or non-current-carrying metallic members of a cable to a bonding conductor or grounding electrode conductor shall be listed or be part of listed equipment.

800.182 Cable Routing Assemblies and Communications Raceways. Cable routing assemblies and communications raceways shall be listed in accordance with 800.182(A) through (C). Cable routing assemblies shall be marked in accordance with Table 800.182(a). Communications raceways shall be marked in accordance with Table 800.182(b). Informational Note: For information on listing requirements for both communications raceways and cable routing assemblies, see ANSI/UL 2024-5-2015, Cable Routing Assemblies and Communications Raceways. (A) Plenum Cable Routing Assemblies and Plenum Communications Raceways. Plenum cable routing assemblies and plenum communications raceways shall be listed as having adequate fire-resistant and low-smoke-producing characteristics Informational Note No. 1: One method of defining cable routing assemblies and communications raceways that have adequate fire-resistant and low-smoke-producing characteristics is that they exhibit a maximum flame spread index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84-17a, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723-2013, Standard Test Method for Surface Burning Characteristics of Building Materials. Informational Note No. 2: Another method of defining communications raceways that have adequate fire-resistant and low-smoke-producing characteristics is that they exhibit a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested


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in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces. Informational Note No. 3: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems, for information on materials exposed to the airflow in ceiling cavity and raised floor plenums. (B) Riser Cable Routing Assemblies and Riser Communications Raceways. Riser cable routing assemblies and riser communications raceways shall be listed as having adequate fire-resistant characteristics capable of preventing the carrying of fire from floor to floor. Informational Note: One method of defining fire-resistant characteristics capable of preventing the carrying of fire from floor to floor is that the cable routing assemblies and communications raceways pass the requirements of ANSI/UL 1666-2011, Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically in Shafts. (C) General-Purpose Cable Routing Assemblies and General-Purpose Communications Raceways. General-purpose cable routing assemblies and general-purpose communications raceways shall be listed as being resistant to the spread of fire. Informational Note: One method of defining resistant to the spread of fire is that the cable routing assemblies and communications raceways do not spread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” in ANSI/UL 1685-2011, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables.


Type Marking Plenum Cable Routing Assembly Plenum Cable Routing Assembly Riser Cable Routing Assembly Riser Cable Routing Assembly General-Purpose Cable Routing Assembly

General-Purpose Cable Routing Assembly


Type Marking Plenum Communications Raceway Plenum Communications Raceway Riser Communications Raceway Riser Communications Raceway General-Purpose Communications Raceway

General-Purpose Communications Raceway


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Public Comment No. 1541-NFPA 70-2018 [ New Section after 800.2 ]

Block . A square or portion of a city, town, or village enclosed by streets andincluding the alleys so enclosed, but not any street.


The definition of block is applicable to all Articles defined in 800.1 as it is not related to a specific application. This definition has existed in previous versions of the NEC and currently exists within Article 805.2 and 830.2 of the within FDR.

PC-1545 and PC-1549 address the removal of this definition in Articles 805.2 and 803.2 respectively



Public Comment No. 1545-NFPA 70-2018 [Definition:Block.]

Linked Action if concept of PC-1541 isaccepted.


Linked Action if concept of PC-1541 isaccepted.



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• FR 7512



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New Definition

Cable Sheath. A covering over the conductor assembly that may include one or more metallicmembers, strength members, or jackets.


The definition of "cable sheath" is applicable to all Articles defined in 800.1 as it is not related to a specific application. This definition has existed in previous versions of the NEC and currently exists within Article 805.2.



Public Comment No. 1560-NFPA 70-2018 [Definition: Cable Sheath.]

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800.2 Definitions.

See The definitions in Part I of Article 100 shall apply . The definitions in 800.2 shall apply only withinArticles 800, 805, 820, 830, and 840.

Abandoned Cable.

Installed cable that is not terminated as described in 805.2 for communications cable, 820.2 for CATVcoaxial cable, or 830.2 for network-powered broadband communications cable and that is not identified forfuture use with a tag

Block . A square or portion of a city, town, or village enclosed by streets and including the alleys soenclosed, but not any street .






Point of Entrance.

The point within a building at which the wire or cable emerges from an external wall or from a concrete floorslab. See 830.2 for additional provisions pertaining to Article 830.

Premises.



The first draft (FR 7512) contains many references to Articles 805 (formerly 800), 820, 830 and 840. All of these references are redundant. If the recommended text for the scope is adopted (PC 43) , it will be clear that the subsequent Articles modify/supplement the general requirements and all the references to the other Articles in Chapter 8 should be deleted including the definition of abandoned cable and part of the definition of point of entrance.

The term “block” is defined and used in Articles 805 (formerly 800) and 830. It isn’t used anywhere else in Chapter 8. The recommended text therefore adds a definition of “block” to the definitions in the general article.



Public Comment No. 43-NFPA 70-2018 [Section No. 800.1] Modifies scope of Article 800

Public Comment No. 45-NFPA 70-2018 [Section No. 800.3(E)]Deletes superfluous references toChapter 8 articles

Public Comment No. 46-NFPA 70-2018 [Section No. 800.24]Deletes superfluous references toChapter 8 articles



Public Comment No. 81-NFPA 70-2018 [Definition: Block.] Deletes definition of Block

Public Comment No. 82-NFPA 70-2018 [Definition: Block.] Deletes definition of Block

Public Comment No. 92-NFPA 70-2018 [Definition: Exposed(to Accidental Contact).]

Deletes definition of Exposed (toAccidental Contact


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Public Comment No. 96-NFPA 70-2018 [Definition: Point ofEntrance.]

Deletes definition of Point of Entrance





Public Comment No. 99-NFPA 70-2018 [Definition:Communications Service Provider.]

Deletes definition of CommunicationsService Provider

Public Comment No. 100-NFPA 70-2018 [Definition:Premises.]

Deletes definition of Premises


Deletes definition of Premises






Public Comment No. 81-NFPA 70-2018 [Definition: Block.]


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Public Comment No. 163-NFPA 70-2018 [ Definition: Abandoned Cable. ]

Abandoned Cable.



This definition in 800.2 contains (adds) no general information as all abandoned cable requirements are different and specifically covered in their respective sections.

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Public Comment No. 1913-NFPA 70-2018 [ Definition: Abandoned Cable. ]

Abandoned Cable.

Installed communications cable or CATV type coaxial cable that is not terminated as described in 805.2for communications cable, 820.2 for CATV coaxial cable, or 830.2 for network-powered broadbandcommunications cable and that at both ends at a connector or other equipment, and is not identified forfuture use with a tag.


This 1) simplifies the definition and 2) removes the issue that definition do not have Article references as part of the definition text.



Public Comment No. 1916-NFPA 70-2018 [Definition: Abandoned Communications Cable.]

Public Comment No. 1919-NFPA 70-2018 [Definition: Abandoned Coaxial Cable.]

Public Comment No. 1921-NFPA 70-2018 [Definition: Abandoned Network-PoweredBroadband Communicati...]


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Public Comment No. 87-NFPA 70-2018 [ Definition: Communications Service Provider. ]


An organization, business, or individual that offers communications service to others up to and includingthe demarcation point .


It would clearly state that the service provider stops at the demarcation point.





Public Comment No. 90-NFPA 70-2018 [Definition: Communications Circuit.]

RelatedItem

• Communications Circuit. The circuit that electrically extends service from the communications utility orservice provider up to and including the customer's communications equipment.


Submitter Full Name: Craig D Dunton

Organization: Bicsi

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Submittal Date: Thu Jun 28 11:01:10 EDT 2018

Committee: NEC-P16


I, Craig D Dunton, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am Craig D Dunton, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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Public Comment No. 1562-NFPA 70-2018 [ Definition: Point of Entrance. ]

Point of Entrance.

The point within a building at which the wire or cable emerges from an external wall or from a concrete floorslab. See 830.2 for additional provisions pertaining to Article 830.


While the deleted text may be a true statement, the text indicated to be deleted is not part of any definition of a "point of entrance" within the NEC 2017 or current Articles of the FDR outside of 800.2. Additionally, there are no other current examples within Code text of this structure, though non-normative text added as italicized comments for the NEC Handbook (ex. "Branch Circuit, Multiwire in NFPA 70 2014 Handbook) does have information of this nature.

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• FR 7512



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Public Comment No. 1529-NFPA 70-2018 [ Section No. 800.2 [Excluding any Sub-

Sections] ]

See The definitions in Part I of Article 100 shall apply . The definitions in 800.2 shall apply only withinArticles 800, 805, 820, 830, and 840.


Related to the changes proposed in FR 7512, the proposed change in the first sentence reflects common verbiage used in other definition Articles. The inclusion of Article 800 to make a self-reflective reference in the second sentence also mirrors other Articles.

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Public Comment No. 164-NFPA 70-2018 [ Section No. 800.3(E) ]


As appropriate for the system involved, communications systems shall also comply with the requirementsof the following:







Addition of the word "also" clarifies that the requirements of Articles 805, 810, 820, 830 and 840 are in addition to those of Article 800.





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The first draft (FR 7512) contains many references to Articles 805 (formerly 800), 820, 830 and 840. All of these references are redundant. If the recommended text for the scope is adopted,(PC 43) it will be clear that the subsequent Articles modify/supplement the general requirements and all the references to the other Articles in Chapter 8 should be deleted.



Public Comment No. 43-NFPA 70-2018 [Section No.800.1]

Modifies scope of Article 800


Deletes superflous references to Chapter 8articles












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It would make clear that the utility service communications circuit provider stops at the demarcation point. After the Bell system break up the utility work stops at the demarcation point as the utility. If they go past the demarcation they do so at a hourly billing company and the exclusion of the NEC as a utility. The communications circuit from the utility stops at the demarcation.



Public Comment No. 87-NFPA 70-2018 [Definition: Communications Service Provider.]

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Communications Circuit. The circuit that electrically extends service from the communications utility or service provider up to and including the demarcation point..



Public Comment No. 87-NFPA 70-2018 [Definition: CommunicationsService Provider.]

Communications Circuit.dedfinition

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• description of a communications circuit



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Current: Communications circuits. The circuit that extends voice, audio, video, data, interactive services, telegraph (except radio) outside wiring for fire alarm and burglar alarm from communications utility to the customer's communications equipment up to and including terminal terminal equipment such as a telephone, fax machine, or answering machine.Proposed: Communications circuits. The circuit that extends voice, audio, video, data, interactive services, telegraph (except radio) outside wiring for fire alarm and burglar alarm from communications utility facilities to the Utilities Demarcation point at the customers premise.



Public Comment No. 90-NFPA 70-2018 [Definition: Communications Circuit.]

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Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling; ANSI/ TIA-568.1- D-2015, Commercial Building Telecommunications Infrastructure Standard; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012, ResidentialTelecommunications Infrastructure Standard; ANSI/TIA-1005-A-2012, TelecommunicationsInfrastructure Standard for Industrial Premises; ANSI/ TIA-1179-2010, Healthcare FacilityTelecommunications Infrastructure Standard; ANSI/TIA-4966-2014, TelecommunicationsInfrastructure Standard for Educational Facilities; and other ANSI-approved installation standards.





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Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI 568-2006,Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1- D-2015,Commercial Building Telecommunications Infrastructure Standard; ANSI/TIA-569-D-2015,Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012, Residential TelecommunicationsInfrastructure Standard; ANSI/TIA-1005-A-2012, Telecommunications Infrastructure Standard forIndustrial Premises; ANSI/ TIA-1179-2010, Healthcare Facility Telecommunications InfrastructureStandard; ANSI/TIA-4966-2014, Telecommunications Infrastructure Standard for EducationalFacilities; and other ANSI-approved installation standards.




Per the intent of FR 7512, 800.24 is meant to be a general requirement, and the deleted text is made redundant by the inclusion of Article 830 and Article 840 within the normative text of Article 800.1 and 800.3.

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Circuits and equipment shall be installed in a neat and workmanlike manner. Cables installed exposed onthe surface of ceilings and sidewalls shall be supported by the building structure in such a manner that thecable will not be damaged by normal building use. Such cables shall be secured by hardware, includingstraps, staples, cable ties, hangers, or similar fittings, designed and installed so as not to damage thecable. The installation shall also conform to 300.4 (D) and 300.11. Nonmetallic cable ties and othernonmetallic cable accessories used to secure and support cables in other spaces used for environmentalair (plenums) shall be listed as having low smoke and heat release properties in accordance with805.170(C). See 830.24 and 840.24 for additional provisions pertaining to Articles 830 and 840.





Article 300.4 covers protection against physical damage. 300.4 (d) covers cables and raceways running parallel to framing members. Why are we only citing protection for wires running vertically? This entire section should apply. Systems covered under article 800 are utilized in many life safety critical operations in modern buildings and as such should have adequate protection regardless of the direction they are run. This subscript letter should be removed and allow the entire section to apply. CMP 3 has taken similar actions in the First draft and has eliminated the (D) subscript under actions taken in FR-8883. Further revisions are to be taken in the second draft per notes in Terraview. This passed CMP 3 with a vote 16-0




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Submitter Full Name: Thomas Parrish

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I, Thomas Parrish, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am Thomas Parrish, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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The first draft (FR 7512) contains many references to Articles 805 (formerly 800), 820, 830 and 840. All of these references are redundant. If the recommended text for the scope is adopted, (PC 43) it will be clear that the subsequent Articles modify/supplement the general requirements and all the references to the other Articles in Chapter 8 should be deleted





Public Comment No. 45-NFPA 70-2018 [Section No.800.3(E)]













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• FR 7152





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800.47 Underground Communications Wires and Cables and CATV Type Coaxial CablesEntering Buildings.

Underground communications wires and cables and CATV type coaxial cables in a raceway,handhole enclosure, or manhole containing electric light, power, Class 1, or non- power-limited fire alarmcircuit conductors shall be in a section separated from such conductors by means of brick, concrete, or tilepartitions or by means of a suitable barrier.


With the intent of FR 7512, a slight modification of the text (e.g., addition of CATV type cables) within 805.47 becomes applicable to multiple Articles in Ch 8. This addition would allow redundant content to be removed in multiple locations and potentially allow for future consolidation of requirements.



Public Comment No. 1622-NFPA 70-2018 [Section No. 805.47(A)]



Public Comment No. 1860-NFPA 70-2018 [Section No. 840.47 [Excluding any Sub-Sections]]

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Overhead (aerial) communication s wires and cables , and CATV type coaxial cables enteringbuildings shall comply with 800.44(A) through 800.44(D). and 805.44 for communications cable, 820.44for CATV coaxial cable, 830.

444 4 for network-powered broadband communications cable, and 840.44 for premises-poweredbroadband communications systems .

Informational Note: For additional information regarding overhead ( aerial) wires and cables, see ANSIC2-2007, National Electrics/ Safety Code , Part 2, Safety Rules for Overhead Lines.

( A) On Poles and In-Span.

Where wires and cables and electric light or power conductors are supported by the same pole or are runparallel to each other in-span, the conditions described in 800.44(A)(1) through (A)(3 4 ) shall be met.






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(3) Climbing Space.


(4) Clearance.

Supply service drops and sets of overhead service conductors of 0 to 750 volts running above andparallel to communications, CATV type coaxial service drops shall have a minimum separation of300 mm (12 in.) at any point in the span, including the point of and at their attachment to thebuilding, provided that the ungrounded conductors are insulated and that a clearance of not lessthan 1.0 m (40 in.) is maintained between the two services at the pole.

(B) Above Roofs.

Communications wires and cables, and CATV type coaxial cables shall have a vertical clearance of notless than 2.5 m (8 ft) from all points of roofs above which they pass.

Exception No. 1: Communications wires and cables, CATV type coaxial cables , and optical fiber cablesshall not be required to have a vertical clearance of not less than 2.5 m (8 ft) above auxiliary buildings,such as garages and the like.



Informational Note: For additional information regarding overhead(aerial) wires and cables, see ANSI/IEEEC2-2012, National Electrical Safety Code, Part 2, Safety Rules for Overhead Lines.

(C) On Mast.

Overhead (aerial) communications, and CATV type coaxial cables shall be permitted to be attached to anabove-the-roof raceway mast that does not enclose or support conductors of electric light or powercircuits.


Communications, and CATV type coaxial cables extending between buildings or structures, and also thesupports or attachment fixtures, shall be identified and shall have sufficient strength to withstand the loadsto which they might be subjected



With the intent of FR 7512 to provide general requirements, the results of FR 7512 as shown in the FDR introduced errors in related Articles contain some errors and did not completely move general requirements. Change made include modifying the first paragraph to allow redundant content from Article 805.44, 820.44, 830.44 and 840.44 to be removed. The remainder of the changes was to move aerial content from Article 805.47 and to unite all common content. It was noted that during development of this public comment that while the text across Article 805.44, 820.44, 830.44 and 840.44 had variations, the specific requirements listed in the text to be added were the same.







Public Comment No. 1843-NFPA 70-2018 [Sections 840.45, 840.46]

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(3) Climbing Space.



The first draft (FR 7512) contains many references to Articles 805 (formerly 800), 820, 830 and 840. All of these references are redundant. If the recommended text for the scope is adopted, (PC 43) it will be clear that the subsequent Articles modify/supplement the general requirements and all the references to the other Articles in Chapter 8 should be deleted


















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We support the concept and desire to unify requirement for unlisted cable entering the building or structure. However this article needs to be removed at this time as the "variable path" in applicability is not consistent with the remainder of the NEC. The other current Article 8XX.48s are sufficient, and reaching agreement on text for 800.48 is best done prior to the public input stage so there is sufficient time to find and eliminate all unintended consequences across Chapter 8.

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This requirement for unlisted cables entering buildings may be misleading and misinterpreted when located in the general article. There are additional requirements that must be applied to unlisted cables entering buildings. For communications cables, up to 50 feet of unlisted cable entering buildings is only permitted where the cable is terminated in an enclosure or on a listed primary protector. For coaxial CATV cables (Article 820), the coaxial cable must be terminated on a grounding block. This level of detail is necessary to ensure that the requirements for unlisted cable entering buildings are correctly applied. Hence, the requirements will need to be repeated in 805.48 and 820.48 defeating the objective of reducing redundancy and promoting NEC usability.

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• FR 7512




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Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between communicationswires and cables, and CATV type coaxial cables on buildings and lightning conductors.

Informational Note: Specific separation distances may be calculated from the side flash equation in NFPA780-2017, Standard for the Installation of Lightning Protection Systems.


With the intent of FR 7512, this generally applicable text found in differing "subarticles" Article 805, 820 and 830 can be moved into Article 800. As conductors related to lighting systems can be a consideration with aerial entrances, attachments on buildings or structure, or affect underground and direct-buried cabling, the creation of a new article provides general requirements for all the Articles at present, while allowing for future expansion independent of any one location.






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Metal conduit containing entrance wire or cable shall be connected by a bonding conductor or groundingelectrode conductor to the grounding electrode or the building grounding electrode system in electrode inaccordance with 800.100(B).


In this particular case, the metal conduit containing communications entrance wire or cable may be grounded to a separate grounding electrode. In some cases, for example those installations described in 800.100(B)(3), a building grounding electrode system does not exist. Therefore, where a separate electrode is used it should be bonded to other grounding means at the building or structure. Hence, requiring the metal conduit to be connected to the building grounding electrode system is an unsubstantiated revision to the requirement.

Related Item

• FR-7698


Submitter Full Name: William McCoy

Organization: Telco Sales, Inc.

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Committee: NEC-P16


I, William McCoy, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am William McCoy, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, uponmy submission of this form, have the same legal force and effect as a handwritten signature


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Metal conduit containing entrance wire or cable shall be connected by a bonding conductor or groundingelectrode conductor to the a grounding electrode or the , where present, the building groundingelectrode system in accordance with 800.100(B).


Not all buildings or structures have a “building grounding electrode system”. This situation is described in 800.100(B)(3). Where there is no building grounding electrode system, a single electrode may be available, or one is established, in accordance with 800.100(B)(3). This PC is intended to correlate 800.49 with 800.100(B)(3).











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• PI 2067




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Metal conduit containing entrance wire or cable shall be connected by a bonding conductor or groundingelectrode conductor to the grounding electrode or the building grounding electrode system in accordancewith 800.100(B).


The term "building grounding electrode system" is used only once in the code (section 800.90), where it refers to a building. All other instances in the code refer to "grounding electrode system" including those in article 250. The issue is that this could refer to a structure that is not a building. Note also the comments from Bill McCoy and Jim Brunssen on the same issue in 770.49.

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• PI2067 • PC495




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800.80 Protection.

Protection of communications systems shall comply with Article 805, Part III for communications circuits,Article 820, Part III for community antenna television and radio distribution systems, Article 830, Part III fornetwork-powered broadband communications systems, or Article 840, Part III for premises-poweredbroadband communications systems.


The first draft (FR 7512)contains many references to Articles 805 (formerly 800), 820, 830 and 840. All of these references are redundant. If the recommended text for the scope is adopted, (PC 43) it will be clear that the subsequent Articles modify/supplement the general requirements and all the references to the other Articles in Chapter 8 should be deleted


















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• FR 7512





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(A) Grounding.

Grounding shall comply with 800.106(A)(1) and 800.106(A)(2).

(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall of themobile home it serves, the primary protector grounding terminal, the coaxial cable shield ground, or surgearrester grounding terminal shall be connected to a grounding electrode conductor or grounding electrode inaccordance with 800.100(B)(3).

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 and locatedwithin 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the primary protector groundingterminal, the coaxial cable shield ground, or surge arrester grounding terminal shall be connected to agrounding electrode in accordance with 800.100(B)(3).

(B) Bonding.

As applicable or present, the primary protector grounding terminal, the coaxial cable shield groundingterminal, surge arrester grounding terminal, network-powered broadband communications cable groundingterminal, network interface unit grounding terminal, and grounding electrode shall be connected to the metalframe or available grounding terminal of the mobile home with a copper conductor not smaller than 12 AWGunder either of the following conditions:




With the intent of FR 7512, the addition/moving of this content allows the removal of like content across multiple Articles.








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• FR 7512



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(1) Insulation.


(2) Material.


(3) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. It shall have acurrent-carrying capacity not less than the grounded metallic sheath member(s) and protected conductor(s)of the cable. The bonding conductor or grounding electrode conductor shall not be required to exceed 6AWG.

(4) Length.



Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximumbonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate ground rodmeeting the minimum dimensional criteria of 800.100(B)(3)(2) or (B)(3)(3) shall be driven, the bondingconductor or grounding electrode conductor shall be connected to the ground rod in accordance with800.100(C), and the ground rod shall be connected to the power grounding electrode system inaccordance with 800.100(D).





(B) Electrode.

The bonding conductor or grounding electrode conductor shall be connected in accordance with800.100(B)(1), (B)(2) , or (B)(3).



Informational Note: Informational Note Figure 800.100 ( B)(1) illustrates the connection of the bondingconductor in buildings or structures equipped with an intersystem bonding termination or a terminal blockproviding access to the building grounding means.

< <Insert Unmodified Graphic Figure Informational Note Figure 805.100(B)(1) as shown in FDR>>



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( 2) In Buildings or Structures with Grounding Means.







(6) The grounding electrode conductor or the grounding electrode conductor metal enclosure of the powerservice



For purposes of this section, the mobile home service equipment or the mobile home disconnecting meanslocated within 9.0 m ( 30 ft) of the exterior wall of the mobile home it serves, or at a mobile homedisconnecting means connected to an electrode by a grounding electrode conductor in accordance with250.32 and located within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, shall be consideredaccessible.

Informational Note: Informational Note Figure 805.100(B)(2) illustrates the connection of the bondingconductor in buildings or structures not equipped with an intersystem bonding termination or terminal blockproviding access to the building grounding means.

<<Insert Unmodified Graphic Figure Informational Note Figure 805.100(B)(2) from FDR>>

Figure Informational Note Figure 805.100(B)(2) Illustration of a Grounding ElectrodeConductor in a Communications Installation.

( 3) In Buildings or Structures Without an Intersystem Bonding Termination or Grounding Means.

If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 800.100(B)(2), the grounding electrode conductor shall be connected to one of thefollowing:

(1) To any one of the individual grounding electrodes described in 250.52(A)(1), (A)(2), (A)(3), or(A)(4)

(2) If the building or structure served has no intersystem bonding termination or grounding means,as described in 800.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodesdescribed in 250.52(A)(5), (A)(7), and (A)(8)

(3) For communications circuits or network-powered broadband communications systems, to aground rod or pipe not less than 1.5 m (5 ft) in length and 12.7 mm (0.5 in.) in diameter, driven,where practicable, into permanently damp earth and separated from lightning protectionsystem conductors, as covered in 805.53, and at least 1.8 m (6 ft) from electrodes of othersystems

Steam, hot water pipes, or lightning protection system conductors shall not be employed asgrounding electrodes for bonding conductors or grounding electrode conductors.




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A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between thegrounding electrode and power grounding electrode system at the building or structure servedwhere separate electrodes are used.



Informational Note No. 2: Bonding together of all separate electrodes limits potentialdifferences between them and between their associated wiring systems.


With the intent of FR 7512, with the minor modification of existing text proposed within 800.100, it allows for the removal of redundant text across multiple articles. Note that all changes shown represent FDR text, including the addition of informational notes and figures introduced into 805.100 during public input.








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• FR 7512



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Public Comment No. 198-NFPA 70-2018 [ Section No. 800.100(A)(3) ]

(3) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. The It shallhave a current-carrying capacity not less than: the grounded metalic cable sheath member(s) of thecommunications cable, the protected conductor(s) of the communications cable, or the outer sheath of thecoaxial cable, as applicable. The bonding conductor or grounding electrode conductor shall not be requiredto exceed 6 AWG.


The addition of the current-carrying requirements for the bonding or grounding conductor enables the deletion of 800.100(A)(3) [old], 820.100(A)(3) and 830.100(A)(3) as all previous information is now contained in 800.100(A)(3) [new}.

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• FR 7512




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Public Comment No. 197-NFPA 70-2018 [ Section No. 800.100(B)(3) ]


If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 800.100(B)(2), the grounding electrode conductor shall be connected to one of the following:


(2) If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 800.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes described in250.52(A)(5), (A)(7), and (A)(8)

(3) For communications circuits or covered in Article 805 or network-powered broadbandcommunications systems covered in Aticle 830 , to a ground rod or pipe not less than 1.5 m (5 ft) inlength and 12.7 mm (0.5 in.) in diameter, driven, where practicable, into permanently damp earth andseparated from lightning protection system conductors, as covered in 805.53, and at least 1.8 m (6 ft)from electrodes of other systems

Steam, hot water pipes, or lightning protection system conductors shall not be employed as groundingelectrodes a grounding electrode conductor or as a grounding electrode for bonding conductors or ,grounding electrode conductors, protectors, NIUs with integral protection, grounded metallic members,NIUs with metalic enclosures, and other equipment .


This subsection should be more specific to emphasize and ensure that the 5-foot ground rod is only applied to the communications circuits of Article 805 and the network-powered broadband communications systems of Article 830. Item 800.100(B)(3) is expanded to include items contained in 830.100(B)(3) and will enable deletion of 805.100(B)(3), 820.(B)(3) and 830.100(B)(3) as all information is now included in 800.100(B)(3).

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• FR 7512




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Exception: At mobile homes as covered in 805.106 for Communications Circuits, 820.106 for CommunityAntenna Television and Rado Disribtion Systems, 830.106 for Network-Powered BroadbandCommunications Systems, and 840.106 for Premises-Powered Broadband Communications systems.




The exception is necessary as the bonding and grounding at mobile homes is extremely important and must be emphasized. Failure to properly ground and bond mobile homes can result in the metal chassis, metal skin, and other metal objects at the mobile home becoming electrically energized presenting an electrical shock hazard. Hence, this should be emphasized in the general section.

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• FR 7512




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TITLE OF NEW CONTENT

In Part V, Installation Methods Within Buildings, add a new 800.110, 800.113 and 800.154 as shown in theattached MS Word File.



Attachment_for_PC_61_6-29-2018.docx


Communications raceways, and cable routing assemblies are used generally in Articles 805, 820 and 830. Consequently the recommended text moves the listing, applications and installation rules for communications raceways, and cable routing assemblies from Article 805 into the general Article. Simply put, that’s where they belong.Note that TerraView labeled PC 61 as a new section after 800.179 and PC 63 recommends deleting 800.179 in FR 7512 and creating a new 800.179 in Part VI. Listing Requirements.

The recommended text for this PC (PC 61) is for Part V. Installation Methods Within Buildings.









Public Comment No. 113-NFPA 70-2018 [Sections 725.3(M), 725.3(N)]


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800.110 Communications Raceways, and Cable Routing Assemblies. Installation of communications raceways shall comply with 800.110(A) and (B). Installation of cable routing assemblies shall comply with 800.110(C). (A) Communications Raceways. Plenum communications raceways, riser communications raceways, and general-purpose communications raceways shall be selected in accordance with Table 800.154(a), listed in accordance with 800.182, and installed in accordance with 800.113 and 362.24 through 362.56, where the requirements applicable to electrical nonmetallic tubing (ENT) apply. (B) Innerduct. Listed plenum communications raceways, listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 800.154(a) shall be permitted to be installed as innerduct in any type of listed raceway permitted in Chapter 3. (C) Cable Routing Assemblies. Plenum cable routing assemblies, riser cable routing assemblies, and general-purpose cable routing assemblies shall be selected in accordance with Table 800.154(b), listed in accordance with 800.182, and installed in accordance with 800.110(C)(1) and (C)(2) and 800.113. (1) Horizontal Support. Cable routing assemblies shall be supported where run horizontally at intervals not to exceed 900 mm (3 ft), and at each end or joint, unless listed for other support intervals. In no case shall the distance between supports exceed 3 m (10 ft). Cable routing assemblies shall be permitted to be supported by ladder cable trays. (2) Vertical Support. Vertical runs of cable routing assemblies shall be supported at intervals not exceeding 1.2 m (4 ft), unless listed for other support intervals, and shall not have more than one joint between supports. Cable routing assemblies shall be permitted to be supported by ladder cable trays. 800.113 Installation of Communications Raceways, and Cable Routing Assemblies. Installation of communications raceways, and cable routing assemblies shall comply with 800.113(A) through (L). Installation of raceways and cable routing assemblies shall also comply with 800.110. (A) Listing. Communications raceways, and cable routing assemblies installed in buildings shall be listed. (B) Ducts Specifically Fabricated for Environmental Air. Communications raceways, and cable routing assemblies shall not be installed in ducts specifically Fabricated for Environmental Air.


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(C) Other Spaces Used for Environmental Air (Plenums). Plenum communications raceways, and plenum cable routing assemblies shall be permitted in other spaces used for environmental air as described in 300.22(C): (D) Risers — Raceways, and Cable Routing Assemblies in Vertical Runs. Plenum and riser communications raceways, and plenum and riser cable routing assemblies shall be permitted in vertical runs penetrating one or more floors and in vertical runs in a shaft: (E) Risers — Cables and Innerducts in Metal Raceways. Plenum, riser, and general-purpose communications raceways (innerducts) shall be permitted in metal raceways in a riser having firestops at each floor: (F) Risers — Raceways, and Cable Routing Assemblies in Fireproof Shafts. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in fireproof riser shafts having firestops at each floor: (G) Risers — One- and Two-Family Dwellings. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted in one- and two-family dwellings. (H) Cable Trays. Plenum, riser, and general-purpose communications raceways shall be permitted to be supported by cable trays. (I) Distributing Frames and Cross-Connect Arrays. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in distributing frames and cross-connect arrays: (J) Other Building Locations. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in building locations other than the locations covered in 800.113(B) through (I): (K) Multifamily Dwellings. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in multifamily dwellings in locations other than the locations covered in 800.113(B) through (G): (L) One- and Two-Family Dwellings. Plenum, riser, and general-purpose communications raceways, and plenum, riser, and general-purpose cable routing assemblies shall be permitted to be installed in one- and two-family dwellings in locations other than the locations covered in 800.113(B) through 800.113(F).


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800.154 Applications of Listed Communications Raceways, and Listed Cable Routing Assemblies. Permitted and nonpermitted applications of listed communications raceways, and listed cable routing assemblies, shall be in accordance with one of the following: (1) Listed communications raceways as indicated in Table 800.154(a) (2) Listed cable routing assemblies as indicated in Table 800.154(b) The permitted applications shall be subject to the installation requirements of 800.110 and 800.113.








Y* N N


Y* Y* Y*

In plenum cable routing assemblies

N N N

Supported by open metal cable trays

Y* N N


Y* Y* Y*

In risers





N N N



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General Y* Y* Y*






N N N


Y* Y* Y*


Y* Y* Y*


N N N



N N N







N N N



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N N N



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N N N

In risers








General Y* Y* Y*






N N N


Y* Y* Y*


N N N



In general-purpose communications raceways

N N N



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800.179 Wires and Plenum, Riser, General-Purpose and Limited-Use Cables .

Wires and Plenum, riser, general-purpose and limited-purpose cables shall be listed in accordance with805.179 , 820.179 , 830.179 , or 840.170 as applicable. Wires and cables shall have 800.179(A) through(D) and h ave a temperature rating of not less than 60°C (140°F). The temperature rating shall be markedon the jacket of cables that have a temperature rating exceeding 60°C (140°F).

(A) Plenum Cables.

Type CMP communications plenum cables, Type CATVP community antenna television plenum coaxialcables and Type BLP network-powered broadband communications low-power plenum cables shall belisted as being suitable for use in ducts, plenums, and other spaces used for environmental air and shallalso be listed as having adequate fire-resistant and low smoke-producing characteristics.

Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistantcable is that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical densityof 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordancewith NFPA 262-2018, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use inAir-Handling Spaces.

(B) Riser Cables.

Type CMR communications riser cables, Type CATVR community antenna television riser coaxial cables,Type BMR network-powered broadband communications medium-power riser cables and Type BLRnetwork-powered broadband communications low-power riser cables shall be listed as being suitable foruse in a vertical run in a shaft or from floor to floor and shall also be listed as having fire-resistantcharacteristics capable of preventing the carrying of fire from floor to floor.

Informational Note: One method of defining fire-resistant characteristics capable of preventing the carryingof fire from floor to floor is that the cables pass the requirements of ANSI/UL 1666-2011, Standard Test forFlame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically in Shafts.

(C) General-Purpose Cables.

Type CM communications cables, Type CMG general-purpose communications cables Type CATVcommunity antenna television coaxial cables, Type BM network-powered broadband communicationsmedium-power cables and Type BL network-powered broadband communications low-power shall be listedas being suitable for general-purpose use, with the exception of risers and plenums, and shall also belisted as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do not spreadfire to the top of the tray in the "UL Flame Exposure, Vertical Flame Tray Test" in ANSI/UL 1685-2010,Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables. The smoke measurements in the test method are not applicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not to exceed 1.5m (4 ft 11 in.) when performing the CSA "Vertical Flame Test - Cables in Cable Trays”, as described inCSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.

(D) Limited-Use Cables.

Type CMX limited-use communications cables, Type CATVX limited-use community antenna televisioncoaxial cables and Type BLX limited-use network-powered broadband low-power cables shall be listed asbeing suitable for use in dwellings and for use in raceway and shall also be listed as being resistant toflame spread.

Informational Note: One method of determining that cable is resistant to flame spread is by testing thecable to the VW-1 (vertical-wire) flame test in ANS/IUL 1581-2017, Reference Standard for ElectricalWires, Cables and Flexible Cords.


With the intent of FR 7512, this consolidates the listing information of cables into one location, allowing for ease of update of references and removal of redundant information.


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This is part of the series that creates the generic Articles which allow the redundant content across Ch 8 to be removed.






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Wires and

179 Plenum, Riser, General-Purpose and Limited-Use Cables. Plenum, riser, general-purpose andlimited-use cables shall be listed in accordance with

805.179 , 820.179 , 830.179 , or 840.170 as applicable. Wires and cables shall

800.179(A) through (D) and have a temperature rating of not less than 60°C (140°F). The temperaturerating shall be marked on the jacket of cables that have a temperature rating exceeding 60°C (140°F).The cable voltage rating shall not be marked on the cable.(A) Plenum Cables. Type CMP communications plenum cables, Type CATVP community antennatelevision plenum coaxial cables and Type BLP network-powered broadband communication low-powerplenum cables shall be listed as being suitable for use in ducts, plenums, and other spaces used forenvironmental air and shall also be listed as having adequate fire-resistant and low smoke-producingcharacteristics.

Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistantcable is that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical densityof 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordancewith NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Usein Air-Handling Spaces .

(B) Riser Cables. Type CMR communications riser cables, Type CATVR community antenna televisionriser coaxial cables, Type BMR network-powered broadband communications medium-power riser cablesand Type BLR network-powered broadband communications low-power riser cables shall be listed asbeing suitable for use in a vertical run in a shaft or from floor to floor and shall also be listed as having fire-resistant characteristics capable of preventing the carrying of fire from floor to floor.

Informational Note: One method of defining fire-resistant characteristics capable of preventing the carryingof fire from floor to floor is that the cables pass the requirements of ANSI/UL 1666-2011, Standard Test forFlame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically in Shafts.

(C) General-Purpose Cables . Type CM communications general-purpose cables, Type CATV communityantenna television coaxial general-purpose cables, Type BM network-powered broadbandcommunications medium-power general-purpose cables and Type BL network-powered broadbandcommunications low-power general-purpose cables shall be listed as being suitable for general-purposeuse, with the exception of risers and plenums, and shall also be listed as being resistant to the spread offire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do not spreadfire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” in ANSI/UL 1685-2010,Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables . The smoke measurements in the test method are not applicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not to exceed1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables in Cable Trays,” as describedin CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables .

(D) Limited-Use Cables. Type CMX limited-use communications cables, Type CATVX limited-usecommunity antenna television coaxial cables and Type BLX limited-use network-powered broadband low-power cables shall be listed as being suitable for use in dwellings and for use in raceway and shall also belisted as being resistant to flame spread.

Informational Note: One method of determining that cable is resistant to flame spread is by testing thecable to the VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, Reference Standard for ElectricalWires, Cables and Flexible Cords.




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The recommended text for 800.179 should be in Part VI. Listing Requirements, not in Part V. Installation Methods Within Buildings







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Cable routing assemblies and communications raceways shall be listed in accordance with800.182(A) through (C). Cable routing assemblies shall be marked in accordance with Table800.182(a) . Communications raceways shall be marked in accordance with Table 800.182(b) .

Informational Note: For information on listing requirements for both communications raceways andcable routing assemblies, see ANSI/UL 2024-5-2015, Cable Routing Assemblies andCommunications Raceways .


Type Marking



General-Purpose Cable Routing Assembly General-Purpose Cable Routing AssemblyTable 800.182(b) Communications Raceway Markings

Type Marking



General-Purpose Communications Raceway General-Purpose Communications Raceway(A) Plenum Cable Routing Assemblies and Plenum Communications Raceways.

Plenum cable routing assemblies and plenum communications raceways shall be listed as havingadequate fire-resistant and low-smoke-producing characteristics.

Informational Note No. 1: One method of defining cable routing assemblies and communicationsraceways that have adequate fire-resistant and low-smoke-producing characteristics is that theyexhibit a maximum flame spread index of 25 and a maximum smoke developed index of 50 whentested in accordance with ASTM E84-17a, Standard Test Method for Surface BurningCharacteristics of Building Materials , or ANSI/UL 723-2013, Standard Test Method for SurfaceBurning Characteristics of Building Materials .

Informational Note No. 2: Another method of defining communications raceways that haveadequate fire-resistant and low-smoke-producing characteristics is that they exhibit a maximumpeak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximumflame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015,Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-HandlingSpaces .

Informational Note No. 3: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning andVentilating Systems , for information on materials exposed to the airflow in ceiling cavity and raisedfloor plenums.


Riser cable routing assemblies and riser communications raceways shall be listed as havingadequate fire-resistant characteristics capable of preventing the carrying of fire from floor to floor.

Informational Note: One method of defining fire-resistant characteristics capable of preventing thecarrying of fire from floor to floor is that the cable routing assemblies and communicationsraceways pass the requirements of ANSI/UL 1666-2011, Standard Test for Flame PropagationHeight of Electrical and Optical-Fiber Cable Installed Vertically in Shafts .


General-purpose cable routing assemblies and general-purpose communications raceways shallbe listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cable routingassemblies and communications raceways do not spread fire to the top of the tray in the “UL FlameExposure, Vertical Flame Tray Test” in ANSI/UL 1685-2011, Standard for Safety for Vertical-TrayFire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables .


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Art_800.182.docx Word version of Comment


With the intent of FR 7512, there is opportunity to reduce redundant content. Analysis of Articles 805, 820, 830 and 840 showed that certain types of information were common, but placed in different locations or intertwined with Article specific information. PC-1663, PC-1673, PC-1686, PC-1691, and PC-1697 create the generic Articles which allow the redundant content across Ch 8 to be removed.




Public Comment No. 1902-NFPA 70-2018 [Section No. 840.170(D)]

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800.182 Cable Routing Assemblies and Communications Raceways. Cable routing assemblies and communications raceways shall be listed in accordance with 800.182(A) through (C). Cable routing assemblies shall be marked in accordance with Table 800.182(a). Communications raceways shall be marked in accordance with Table 800.182(b).



Type Marking Plenum Cable Routing Assembly Plenum Cable Routing Assembly Riser Cable Routing Assembly Riser Cable Routing Assembly General-Purpose Cable Routing Assembly General-Purpose Cable Routing Assembly


Type Marking Plenum Communications Raceway Plenum Communications Raceway Riser Communications Raceway Riser Communications Raceway General-Purpose Communications Raceway General-Purpose Communications Raceway










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TITLE OF NEW CONTENT

Add a new section 800.182 as shown in the attached MS Word doc.



Attachment_for_PC_65_6-28-2018.docx






Public Comment No. 111-NFPA 70-2018 [Section No. 840.170(D)]

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800.182 Cable Routing Assemblies and Communications Raceways. Cable routing assemblies and communications raceways shall be listed in accordance with 800.182(A) through (C). Cable routing assemblies shall be marked in accordance with Table 800.182(a). Communications raceways shall be marked in accordance with Table 800.182(b). Informational Note: For information on listing requirements for both communications raceways and cable routing assemblies, see ANSI/UL 2024-5-2015, Cable Routing Assemblies and Communications Raceways. (A) Plenum Cable Routing Assemblies and Plenum Communications Raceways. Plenum cable routing assemblies and plenum communications raceways shall be listed as having adequate fire-resistant and low-smoke-producing characteristics Informational Note No. 1: One method of defining cable routing assemblies and communications raceways that have adequate fire-resistant and low-smoke-producing characteristics is that they exhibit a maximum flame spread index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84-17a, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723-2013, Standard Test Method for Surface Burning Characteristics of Building Materials. Informational Note No. 2: Another method of defining communications raceways that have adequate fire-resistant and low-smoke-producing characteristics is that they exhibit a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces. Informational Note No. 3: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems, for information on materials exposed to the airflow in ceiling cavity and raised floor plenums. (B) Riser Cable Routing Assemblies and Riser Communications Raceways. Riser cable routing assemblies and riser communications raceways shall be listed as having adequate fire-resistant characteristics capable of preventing the carrying of fire from floor to floor. Informational Note: One method of defining fire-resistant characteristics capable of preventing the carrying of fire from floor to floor is that the cable routing assemblies and communications raceways pass the requirements of ANSI/UL 1666-2011, Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically in Shafts. (C) General-Purpose Cable Routing Assemblies and General-Purpose Communications Raceways. General-purpose cable routing assemblies and general-


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purpose communications raceways shall be listed as being resistant to the spread of fire. Informational Note: One method of defining resistant to the spread of fire is that the cable routing assemblies and communications raceways do not spread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” in ANSI/UL 1685-2011, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables.


Type Marking






Type Marking






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Public Comment No. 1916-NFPA 70-2018 [ Definition: Abandoned Communications

Cable. ]

Abandoned Communications Cable.

Installed communications cable that is not terminated at both ends at a connector or other equipment andnot identified for future use with a tag.


With the intent of FR 7512, PC-1913 modifies the definition of abandoned cable so that it is applicable across 805, 820, and 830, allowing it to be deleted here.



Public Comment No. 1913-NFPA 70-2018 [Definition:Abandoned Cable.]

Acceptance of PC-1913 will provide a betterdefinition in 800.2

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Public Comment No. 1545-NFPA 70-2018 [ Definition: Block. ]

Block.



The intent of FR 7512 was to create a general Article within Ch 8 applicable to multiple Ch 8 articles. As this definition appears in multiple articles, it should be moved to Art 800.2.





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Block.



This PC coordinates with PC 44 which moves the definition of block to the new general article 800.



Public Comment No. 44-NFPA 70-2018 [Section No. 800.2] Definitions in new article 800

Public Comment No. 82-NFPA 70-2018 [Definition: Block.] Deletes definition of block from Article 830



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Public Comment No. 1560-NFPA 70-2018 [ Definition: Cable Sheath. ]

Cable Sheath.

A covering over the conductor assembly that may include one or more metallic members, strengthmembers, or jackets.


The intent of FR 7512 was to create a general Article within Ch 8 applicable to multiple Ch 8 articles. As this definition is applicable to multiple articles, it should be moved to Art 800.2.



Public Comment No. 1554-NFPA 70-2018 [New Section after 800.2] Linked action if PC-1554 is accepted

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Public Comment No. 116-NFPA 70-2018 [ Definition: Communications Circuit. ]


The circuit that electrically extends that extends service from the communications utility or service providerup to and including the customer's communications equipment.


The word “electrically” is incorrect and should be deleted because some services are optical or wireless.

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Public Comment No. 90-NFPA 70-2018 [ Definition: Communications Circuit. ]


The circuit that electrically extends service from the communications utility or service provider up to andincluding the customer's communications equipment demarcation point .


It would make it clear that the service provider utility provider stops at the demarcation point. This changed in 1984 with the Bell System breack up.



Public Comment No. 87-NFPA 70-2018 [Definition: Communications Service Provider.]


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Public Comment No. 1700-NFPA 70-2018 [ Definition: Exposed (to Accidental Contact).

]



Informational Note: See Part I of Article 100 for two other definitions of Exposed .


This definition exists in Article 800.2 and needs to be deleted here.

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Public Comment No. 199-NFPA 70-2018 [ Definition: Exposed (to Accidental Contact). ]





This definition may be deleted in 805.2 as it is now contained in 800.2 [new].

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This PC coordinates with FR 7512 which moves the definition of "Exposed" to the new general article 800.



Public Comment No. 93-NFPA 70-2018 [Definition: Exposed (toAccidental Contact).]

Deletes definition of "Exposed" inArticle 820






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Point of Entrance.




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Point of Entrance.



This definition in 805.2 may be deleted as it is now contained in 800.2 [new].

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Point of Entrance.



This PC coordinates with FR 7512 which moves the definition of "Point of Entrance" to the new general article 800.




Deletes definition of Point of Entrance inArticle 820






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Public Comment No. 101-NFPA 70-2018 [ Definition: Premises. ]

Premises.



This PC coordinates with FR 7512 which moves the definition of "Premises" to the new general article 800.




Deletes definition of Premises in Article820



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Premises.




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Premises.



This definition in 805.2 may be deleted as it is now covered in 800.2 [new].

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Installations of communications circuits and equipment shall comply with 805.3(A) through (G D ). Onlythose sections of Chapters 1 through 7 referenced in Article 805 shall apply to communications circuits andequipment.

(A)

Hazardous (Classified) Locations.








(E)

General requirements for communications systems. The general requirements for communicationssystems in Article 800 shall apply to communications circuits unless modified by Article 805.

(B) Network-Powered Broadband Communications Systems.

Article 830 shall apply to network-powered broadband communications systems.

(F C ) Premises-Powered Broadband Communications Systems.

Article 840 shall apply to premises-powered broadband communications systems.

(G D ) Optical Fiber Cable.



The recommended text has a reference to the new general Article 800 in order to inform the user that many of the requirements that were formerly in this article are now in the general article. Redundant references to other articles were deleted.









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Installations of communications circuits and equipment shall comply with 805.3(A) through (G B ). Onlythose sections of Chapters 1 through 7 referenced in Article 805 shall apply to communications circuits andequipment.









(E) Network-Powered Broadband

General Requirements for Communications Systems.

Article

830

800 shall apply to

network-powered broadband communications systems.

(F) Premises-Powered Broadband Communications Systems.

Article 840 shall apply to premises-powered broadband communications systems

communications circuits unless modified by Article 805 .

(G B ) Optical Fiber Cable.



With the restructure created by FR 7512, this removes redundancy of information between Article 800 and 805.

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This purpose of this PC is to delete a redundant section. The same requirement is in new general Article 800.









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This material exists in Article 800.21 and needs to be deleted here.

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Communications circuits and equipment shall be installed in a neat and workmanlike manner. Cablesinstalled exposed on the surface of ceilings and sidewalls shall be supported by the building structure insuch a manner that the cable will not be damaged by normal building use. Such cables shall be secured byhardware, including straps, staples, cable ties, hangers, or similar fittings, designed and installed so as notto damage the cable. The installation shall also conform to 300.4(D) and 300.11 . Nonmetallic cable tiesand other nonmetallic cable accessories used to secure and support cables in other spaces used forenvironmental air (plenums) shall be listed as having low smoke and heat release properties in accordancewith 805.170(C) .

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling ; ANSI/TIA-568.1-D-2015, Commercial Building Telecommunications Infrastructure Standard ; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces ; ANSI/TIA-570-C-2012, ResidentialTelecommunications Infrastructure Standard ; ANSI/TIA-1005-A-2012, TelecommunicationsInfrastructure Standard for Industrial Premises ; ANSI/TIA-1179-2010, Healthcare FacilityTelecommunications Infrastructure Standard ; ANSI/TIA-4966-2014, TelecommunicationsInfrastructure Standard for Educational Facilities ; and other ANSI-approved installation standards.

Informational Note No. 2: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning andVentilating Systems , for discrete combustible components installed in accordance with 300.22(C) .








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Communications circuits and equipment shall be installed in a neat and workmanlike manner. Cablesinstalled exposed on the surface of ceilings and sidewalls shall be supported by the building structure insuch a manner that the cable will not be damaged by normal building use. Such cables shall be secured byhardware, including straps, staples, cable ties, hangers, or similar fittings, designed and installed so as notto damage the cable. The installation shall also conform to 300.4(D) and 300.11 . Nonmetallic cable tiesand other nonmetallic cable accessories used to secure and support cables in other spaces used forenvironmental air (plenums) shall be listed as having low smoke and heat release properties in accordancewith 805.170(C) .

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568-2006, Standard for Installing Commercial Building Telecommunications Cabling ; ANSI/TIA-568.1-D-2015, Commercial Building Telecommunications Infrastructure Standard ; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces ; ANSI/TIA-570-C-2012, ResidentialTelecommunications Infrastructure Standard ; ANSI/TIA-1005-A-2012, TelecommunicationsInfrastructure Standard for Industrial Premises ; ANSI/TIA-1179-2010, Healthcare FacilityTelecommunications Infrastructure Standard ; ANSI/TIA-4966-2014, TelecommunicationsInfrastructure Standard for Educational Facilities ; and other ANSI-approved installation standards.





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Communications circuits and equipment shall be installed in a neat and workmanlike manner. Cablesinstalled exposed on the surface of ceilings and sidewalls shall be supported by the building structure insuch a manner that the cable will not be damaged by normal building use. Such cables shall be secured byhardware, including straps, staples, cable ties, hangers, or similar fittings, designed and installed so as notto damage the cable. The installation shall also conform to 300.4(D) and 300.11. Nonmetallic cable ties andother nonmetallic cable accessories used to secure and support cables in other spaces used forenvironmental air (plenums) shall be listed as having low smoke and heat release properties in accordancewith 805.170(C). Metallic means of support for flexible conduit and conductors shall be used in spacesabove egress, which includes doorways, hallways, stairways, corridors, passageways, lobbies, landings,and equivalent spaces.

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI 568-2006,Standard for Installing Commercial Building Telecommunications Cabling; ANSI/TIA-568.1-D-2015,Commercial Building Telecommunications Infrastructure Standard; ANSI/TIA-569-D-2015,Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012, Residential TelecommunicationsInfrastructure Standard; ANSI/TIA-1005-A-2012, Telecommunications Infrastructure Standard forIndustrial Premises; ANSI/TIA-1179-2010, Healthcare Facility Telecommunications InfrastructureStandard; ANSI/TIA-4966-2014, Telecommunications Infrastructure Standard for EducationalFacilities; and other ANSI-approved installation standards.


Informational Note No. 3: Paint, plaster, cleaners, abrasives, corrosive residues, or othercontaminants may result in an undetermined alteration of communications wire and cable properties.


Panel CMP 3 rejected PI 3233 because it was not provided to all corresponding sections. This public comment is being submitted to article 725 and to articles 760, 770 (in other PCs) and 805 (in this PC). The submitter of PI 3233 is correct in stating that "Nonmetallic supports exhibit significant weakening and failure during fires which can affect the safety of occupants and emergency personnel entering and exiting buildings due to entanglement in fallen cable." There are abundant examples of firefighters getting trapped under mazes of cables falling as a result of inadequate supports (perhaps because they burnt or because they lost strength during a fire). I will not repeat here all the information provided by the original submitted but will include the bibliography, as follows:[1] Fire Engineering Training Minutes. Presented by Mike Ciampo, Fire Department of New York.http://www.fireengineering.com/topics/m/video/36928837/the-quick-release-method.htm?q=cable+entanglement)[2] Chubb, M., and Joe Caldwell. 3/1/1995. “Tragedy in a Residential High-Rise, Memphis, Tennessee.” Fire Engineering, http://www.fireengineering.com/articles/print/volume-148/issue-3/features/tragedy-in-a-residential-high-rise-memphistennessee.html[3] April 15, 2013. “Shirley Towers flats blaze: ‘Possible safety breaches’”. BBC. http://www.bbc.co.uk/news/uk-englandhampshire-22126431[4] Rawlinson, J. August 2014, Vol. 34, No. 8, “Change for the Better.” Electrical Contracting News (ECN), pp. 24-25.http://edition.pagesuiteprofessional.co.uk/Launch.aspx?EID=dd8a7ebe-4f8b-4aa6-a9a1-d6b4692f6a23 [5] BS 7671:2008+A2:2013, Requirements for electrical installations. IET Wiring Regulations. Seventeenth edition. [6] BS 5839-1:2013, Fire detection and fire alarm systems for buildings. Code of practice for design, installation, commissioning and maintenance of systems in non-domestic premises






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Overhead (aerial) communications wires and cables entering buildings shall comply with 805.44(A) and(B).


Where communications wires and cables and electric light or power conductors are supported by the samepole or are run parallel to each other in-span, the conditions described in 805.44(A)(1) through805.44(A)(4) shall be met.


Where practicable, the communications wires and cables shall be located below the electric light or powerconductors.


Communications wires and cables shall not be attached to a cross-arm that carries electric light or powerconductors.

(3) Climbing Space.

The climbing space through communications wires and cables shall comply with the requirements of225.14(D) .

(4) Clearance.

Supply service drops and sets of overhead service conductors of 0 to 750 volts running above and parallelto communications service drops shall have a minimum separation of 300 mm (12 in.) at any point in thespan, including the point of and at their attachment to the building, provided that the ungroundedconductors are insulated and that a clearance of not less than 1.0 m (40 in.) is maintained between the twoservices at the pole.

(B) Above Roofs.

Communications wires and cables shall have a vertical clearance of not less than 2.5 m (8 ft) from allpoints of roofs above which they pass.

Exception No. 1: Communications wires and cables shall not be required to have a vertical clearance ofnot less than 2.5 m (8 ft) above auxiliary buildings, such as garages and the like.



Informational Note: For additional information regarding overhead (aerial) wires and cables, seeANSI/IEEE C2-2012, National Electrical Safety Code , Part 2, Safety Rules for Overhead Lines .


This information is common to Chapter 8 and is not solely applicable to communication circuits. The deletion of text here would be in conjunction of the addition of text as indicated in PC-1575.



Public Comment No. 1575-NFPA 70-2018 [Section No. 800.44] Linked action if PC-1575 is accepted


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805.47 Underground Communications Wires and Cables Entering Buildings.

Underground communications wires and cables entering buildings shall comply with 805.47(A) and (B).The requirements of 310.10(C) shall not apply to communications wires and cables.



(B) Underground Block Distribution.

Where the entire street circuit is run underground and the circuit within the block is placed so as to be freefrom the likelihood of accidental contact with electric light or power circuits of over 300 volts to ground, theinsulation requirements of 805.50(A) and 805.50(C) shall not apply, insulating supports shall not berequired for the conductors, and bushings shall not be required where the conductors enter the building.

(C) On Mast.

Overhead (aerial) communications cables shall be permitted to be attached to an above-the-roof racewaymast that does not enclose or support conductors of electric light or power circuits.


Communications cables extending between buildings or structures, and also the supports or attachmentfixtures, shall be identified and shall have sufficient strength to withstand the loads to which they might besubjected.



With the implementation of FR 7512, aerial content that has existed in the old Article 800.44 for multiple versions was moved to 805.47 for underground applications. As the comment system does not include an if-then, else option, this comment's resolution path can be considered as follows1. If there is no need to move this aerial content, no action is required2. If PC-1575 (or equivalent to add this content somewhere in Article 800) is accepted, delete this content.3. If PC-1575 is not accepted, add this content to 805.44 and delete this content from 805.47.



Public Comment No. 1575-NFPA 70-2018 [Section No. 800.44] See Substantiation

Related Item

• FR 7512



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City:

State:

Zip:


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Committee: NEC-P16





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With the intent of FR 7512, a slight modification of the text (e.g., addition of CATV type cables) within the text of 805.47 makes it applicable to multiple Articles in Ch 8 and can be moved.



Public Comment No. 1609-NFPA 70-2018 [New Section after800.44]

Linked action if PC-1609 isapproved

Related Item

• FR 7512



Organization: Bicsi

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City:

State:

Zip:


Committee: NEC-P16





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Metal conduit containing communications entrance wire or cable shall be connected by a bondingconductor or grounding electrode conductor to a grounding electrode or, where present, the buildinggrounding electrode system in system in accordance with 805.100(B).













Related Item

• PI 2067




Affiliation: ATIS

Street Address:

City:

State:

Zip:


Committee: NEC-P16





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Metal conduit containing communications entrance wire or cable shall be connected by a bondingconductor or grounding electrode conductor to the building grounding electrode system in accordance with805.100(B) .



Related Item

• FR 7512



Organization: Bicsi

Street Address:

City:

State:

Zip:


Committee: NEC-P16





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Metal conduit containing communications entrance wire or cable shall be connected by a bondingconductor or grounding electrode conductor to the building grounding electrode system in accordance with805.100(B).


The term "building grounding electrode system" is used only once in the code (section 800.90), where it refers to a building. All other instances in the code refer to "grounding electrode system" including those in article 250. The issue is that this could refer to a structure that is not a building. Note also the comments from Bill McCoy and Jim Brunssen on an associated item.




Related Item

• PI2065




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State:

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Committee: NEC-P16





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Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between communications wiresand cables on buildings and lightning conductors.

Informational Note: Specific separation distances may be calculated from the sideflash equation inNFPA 780-2017, Standard for the Installation of Lightning Protection Systems .


Related to FR 7512, this content also exists within Article 820.44 and 830.44, is generally applicable to Chapter 8 and should be moved to a new Article 800.53 as written




Linked action upon acceptance ofPC-1597

Related Item

• FR 7512



Organization: Bicsi

Street Address:

City:

State:

Zip:


Committee: NEC-P16





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The primary protector and the metallic member(s) of the cable sheath shall be bonded or grounded asspecified in 805 800 .100 (A) through 805 . 100(D).


(1) Insulation.


(2) Material.


(3) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. It shall have acurrent-carrying capacity not less than the grounded metallic sheath member(s) and protected conductor(s)of the communications cable. The bonding conductor or grounding electrode conductor shall not berequired to exceed 6 AWG.

(4) Length.

The primary protector bonding conductor or grounding electrode conductor shall be as short as practicable.In one- and two-family dwellings, the primary protector bonding conductor or grounding electrodeconductor shall be as short as practicable, not to exceed 6.0 m (20 ft) in length.


Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximumprimary protector bonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separatecommunications ground rod meeting the minimum dimensional criteria of 805.100(B)(3)(2) shall bedriven, the primary protector shall be connected to the communications ground rod in accordance with805.100(C) , and the communications ground rod shall be connected to the power grounding electrodesystem in accordance with 805.100(D) .





(B) Electrode.

The bonding conductor or grounding electrode conductor shall be connected in accordance with805.100(B)(1) , 805.100(B)(2) , or 805.100(B)(3) .


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If the building or structure served has an intersystem bonding termination as required by 250.94 , thebonding conductor shall be connected to the intersystem bonding termination.




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(3) The power service accessible means external to enclosures using the options identified in250.94(A) , Exception






Informational Note: Informational Note Figure 805.100(B)(2) illustrates the connection of thebonding conductor in buildings or structures not equipped with an intersystem bonding terminationor terminal block providing access to the building grounding means.


For purposes of this section, the mobile home service equipment or the mobile home disconnectingmeans, as described in 805.90(B) , shall be considered accessible.


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If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 805.100(B)(2) , the grounding electrode conductor shall be connected to either of thefollowing:

(1) To any one of the individual grounding electrodes described in 250.52(A)(1) , (A)(2), (A)(3), or(A)(4).

(2) If the building or structure served has no intersystem bonding termination or has no groundingmeans, as described in 805.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodesdescribed in 250.52(A)(7) and (A)(8) or to a ground rod or pipe not less than 1.5 m (5 ft) in length

and 12.7 mm ( 1 ⁄ 2 in.) in diameter, driven, where practicable, into permanently damp earth andseparated from lightning protection system conductors as covered in 805.53 and at least 1.8 m (6 ft)from electrodes of other systems. Steam, hot water pipes, or lightning protection system conductorsshall not be employed as electrodes for protectors and grounded metallic members.


Connections to grounding electrodes shall comply with 250.70 .


A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between thecommunications grounding electrode and power grounding electrode system at the building or structureserved where separate electrodes are used.

Exception: At mobile homes as covered in 805.106 .




With the intent of FR7512, PC-1633 allows the removal of the text of Article 800.100 in its entirety. Rather than removing the Article in its entirety, leaving the one requirement keeps the article number intact within Part IV, as PC-1653 and PC-1654 are linked changes allowing the removal of Article 805.106 in its entirety.




Linked action upon acceptance ofPC-1633

Related Item

• FR 7512



Organization: Bicsi

Street Address:

City:

State:

Zip:


Committee: NEC-P16


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Delete this informational note, figure, and caption here and relocate to follow Section 800.100(B)(1) [new]. This informational note, figure and caption comprises general information and is better suited for location following Section 800.100(B)(1).



Public Comment No. 176-NFPA 70-2018 [Section No. 805.100(B)(2)]




Related Item

• FR 7512




Affiliation: ATIS

Street Address:

City:

State:

Zip:

Submittal Date: Sat Jul 07 08:54:45 EDT 2018


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Committee: NEC-P16





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Informational Note: Informational Note Figure 805 .100(B)(2) illustrates the connection of thebonding conductor in buildings or structures not equipped with an intersystem bonding terminationor terminal block providing access to the building grounding means.


For purposes of this section, the mobile home service equipment or the mobile home disconnectingmeans, as described in 805.90(B) , shall be considered accessible.


Delete this informational note, figure, and caption here and relocate to follow Section 800.100(B)(2) [new]. This informational note, figure and caption comprises general information and is better suited for location following Section 800.100(B)(2).



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Related Item

• FR 7512




Affiliation: ATIS

Street Address:

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State:

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Committee: NEC-P16





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(A) Grounding.

Grounding shall comply with 805.106(A)(1) and 805.106(A)(2) .

(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall ofthe mobile home it serves, the primary protector grounding terminal shall be connected to agrounding electrode conductor or grounding electrode in accordance with 805.100(B)(3) .

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 andlocated within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the primary protectorgrounding terminal shall be connected to a grounding electrode in accordance with 805.100(B)(3) .

(B) Bonding.

The primary protector grounding terminal or grounding electrode shall be connected to the metal frame oravailable grounding terminal of the mobile home with a copper conductor not smaller than 12 AWG undereither of the following conditions:




With the intent of FR 7512, acceptance of PC-1654 will allow this content to be removed.




Linked action with acceptance ofPC-1653

Related Item

• FR 7512



Organization: Bicsi

Street Address:

City:

State:

Zip:


Committee: NEC-P16


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805.110 Raceways, Cable Routing Assemblies, and Cable Trays for Communications Wires andCables .






Communications wires and cables shall be permitted to be installed in plenum listed communicationsraceways , riser communications raceways, and general-purpose communications raceways selected inaccordance with Table 805 800 .154(b) , listed in accordance with 805.182 , and installed in accordancewith 805.113 and 362.24 through 362.56 , where the requirements applicable to electrical nonmetallictubing (ENT) apply. a) .


Listed plenum communications raceways , listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805 800 .154(b a ) shall be permittedto be installed as innerduct in any type of listed raceway permitted in Chapter 3.




(D) Cable Trays.

Communications wires and cables shall be permitted to be installed in plenum listed cable routingassemblies , riser cable routing assemblies, and general-purpose cable routing assemblies selected inaccordance with Table 805 800 .154(c) , listed in accordance with 805.182 , and installed in accordancewith 805.110(C)(1) and (C)(2) and 805.113 .

(1) Horizontal Support.

Cable routing assemblies shall be supported where run horizontally at intervals not to exceed 900 mm (3 ft)and at each end or joint, unless listed for other support intervals. In no case shall the distance betweensupports exceed 3 m (10 ft).



b) .

(D) Cable Trays . Communications cables and communications raceways shall be permitted to beinstalled in metal or listed nonmetallic cable tray systems. Ladder cable trays shall be permitted to supportcable routing assemblies.





Public Comment No. 61-NFPA70-2018 [New Section after 800.179]

Moves communications raceways, and cable routing assembliesapplications and installation rules to general Article 800.


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Public Comment No. 104-NFPA70-2018 [Section No. 820.110]

Coordinating PC for Article 820






Related Item

• FR 7512





Street Address:

City:

State:

Zip:

Submittal Date: Fri Jun 29 08:13:22 EDT 2018

Committee: NEC-P16





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Communications wires and cables shall be permitted to be installed in plenum listed communicationsraceways , riser communications raceways, and general-purpose communications raceways selected inaccordance with Table 805.154(b) , listed in accordance with 805.182 , and installed in accordance with805.113 and 362.24 through 362.56 , where the requirements applicable to electrical nonmetallic tubing(ENT) apply. that comply with 800.110(A).


Listed plenum communications raceways , listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805.154(b that comply with800.110(B ) shall be permitted to be installed as innerduct in any type of listed raceway permitted inChapter 3.




Communications wires and cables shall be permitted to be installed in plenum listed cable routingassemblies , riser cable routing assemblies, and general-purpose cable routing assemblies selected inaccordance with Table 805.154(c) , listed in accordance with 805.182 , and installed in accordance with805. that comply with 800. 110(C) (1) and (C)(2) and 805 . 113.

(

1) Horizontal Support.

Cable routing assemblies shall be supported where run horizontally at intervals not to exceed 900 mm(3 ft) and at each end or joint, unless listed for other support intervals. In no case shall the distancebetween supports exceed 3 m (10 ft).



( D) Cable Trays.

Communications cables and communications raceways shall be permitted to be installed in metal or listednonmetallic cable tray systems. Ladder cable trays shall be permitted to support cable routing assemblies.


With the intent of FR 7512, acceptance of PC-1663 will allow the removal of redundant content indicated.



Public Comment No. 1663-NFPA 70-2018 [New Part after V.] Linked action with acceptance of PC-1663

Related Item


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• FR 7512



Organization: Bicsi

Street Address:

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Committee: NEC-P16





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Public Comment No. 1580-NFPA 70-2018 [ Section No. 805.110(B) ]



Informational Note No. 1: For additional information on installing communications wires and cables inraceways see ANSI/NECA/BICSI 568–2006, Standard for InstallingCommercial BuildingTelecommunications Cabling ; ANSI/TIA-568.1-D-2015, Commercial Building TelecommunicationsInfrastructure Standard; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces ; ANSI/TIA-570-C-2012, ResidentialTelecommunications Infrastructure Standard ; ANSI/TIA-1005-A-2012,Telecommunications Infrastructure Standard for Industrial Premises ; ANSI/TIA-1179-2010, HealthcareFacility Telecommunications Infrastructure Standard ; ANSI/TIA-4966-2014, TelecommunicationsInfrastructure Standard for Educational Facilities ; and other ANSI-approved installation standards.


In addition to the offered substantiation for PI 3145-NFPA 70-2017 and the panel resolution provided I would like to recommend the addition of an Informational Note to this section.Typically communications conduits installed to the project design criteria or manufacturers recommended practices leave an open space anywhere from forty (40) to sixty (60) percent fill. This space becomes "fair game" for other installers to utilize the raceway. This secondary practice can result in cable damage or potential performance issues such as RFI/EMI caused by the additional cable. Similar to the Informational Note in Section 805.24 this inclusion would provide needed guidance on this subject.

Related Item

• PI No. 3145-NFPA 70-2017


Submitter Full Name: Frederick Foster

Organization: Innovative Engineering

Street Address:

City:

State:

Zip:


Committee: NEC-P16


I, Frederick Foster, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am Frederick Foster, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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805.113 Installation of Communications Wires , Cables and Raceways, and Cable RoutingAssemblies and Cables .

Installation of communications wires , cables and raceways, and cable routing assemblies and cablesshall comply with 805.113(A) through (L). Installation of raceways and cable routing assemblies shall alsocomply with 805.110 .

(A) Listing.

Communications wires , communications cables, communications raceways, and cable routing assembliesand cables installed in buildings shall be listed.

Exception: Communications cables that are installed in compliance with 805.48 shall not be required to belisted.





Informational Note: For information on fire protection of wiring installed in fabricated ducts, see NFPA90A-2018, Standard for the Installation of Air-Conditioning and Ventilating Systems.


The following wires , cables, raceways, and cable routing assemblies and cables shall be permitted inother spaces used for environmental air as described in 300.22(C):

(1) Type CMP cables







(8) Types CMP, CMR, CMG, CM, and CMX cables, plenum communications raceways, risercommunications raceways, and general-purpose communications raceways supported by solid bottommetal cable trays with solid metal covers in other spaces used for environmental air (plenums) asdescribed in 300.22(C)

(9) Types CMP, CMR, CMG, CM, and CMX cables installed in plenum communications raceways, risercommunications raceways, and general-purpose communications raceways supported by solid bottommetal cable trays with solid metal covers in other spaces used for environmental air (plenums) asdescribed in 300.22(C)



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(D) Risers — Cables , Raceways, and Cable Routing Assemblies in Vertical Runs.

The following cables , raceways, and cable routing assemblies shall be permitted in vertical runspenetrating one or more floors and in vertical runs in a shaft:






(6) Riser communications raceways


(8) Riser cable routing assemblies



The following cables and innerducts shall be permitted in metal raceways in a riser having firestops at eachfloor:




(4) Plenum communications raceways (innerduct)

(5) Riser communications raceways (innerduct)

(6) General-purpose communications raceways (innerduct)


(F) Risers — Cables , Raceways, and Cable Routing Assemblies in Fireproof Shafts.

The following cables , raceways, and cable routing assemblies shall be permitted to be installed in fireproofriser shafts having firestops at each floor:







(7) General-purpose communications raceways



(10) General-purpose cable routing assemblies



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The following cables , raceways, and cable routing assemblies shall be permitted in one- and two-familydwellings:












(H) Cable Trays.

The following wires , and cables , and raceways shall be permitted to be supported by cable trays:








The following wires , cables, raceways, and cable routing assemblies and cables shall be permitted to beinstalled in distributing frames and cross-connect arrays:












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The following wires , cables, raceways, and cable routing assemblies and cables shall be permitted to beinstalled in building locations other than the locations covered in 805.113(B) through (I):
















The following cables , raceways, and cable routing assemblies shall be permitted to be installed inmultifamily dwellings in locations other than the locations covered in 805.113(B) through (G):
















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The following wires , cables, raceways, and cable routing assemblies and cables shall be permitted to beinstalled in one- and two-family dwellings in locations other than the locations covered in 805.113(B)through (F):





















Moves communications raceways, and cable routing assembliesapplications and installation rules to general Article 800

Related Item

• FR 7512





Street Address:

City:

State:

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Committee: NEC-P16


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805.113 Installation of Communications Wires , Cables and Raceways, and Cable RoutingAssemblies and Cables .

Installation of communications wires , cables and raceways, and cable routing assemblies and cablesshall comply with 805.113(A) through (L). Installation of raceways and cable routing assemblies shall alsocomply with 805.110 .

(A) Listing.

Communications wires , communications cables, communications raceways, and cable routing assembliesand cables installed in buildings shall be listed.

Exception: Communications cables that are installed in compliance with 805 800 .48 shall not be requiredto be listed.







The following wires , cables, raceways, and cable routing assemblies and cables shall be permitted inother spaces used for environmental air as described in 300.22(C):

(1) Type CMP cables







(8) Types CMP, CMR, CMG, CM, and CMX cables, plenum communications raceways, risercommunications raceways, and general-purpose communications raceways supported by solid bottommetal cable trays with solid metal covers in other spaces used for environmental air (plenums) asdescribed in 300.22(C)

(9) Types CMP, CMR, CMG, CM, and CMX cables installed in plenum communications raceways, risercommunications raceways, and general-purpose communications raceways supported by solid bottommetal cable trays with solid metal covers in other spaces used for environmental air (plenums) asdescribed in 300.22(C)



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(D) Risers — Cables , Raceways, and Cable Routing Assemblies in Vertical Runs.

The following cables, raceways, and cable routing assemblies shall be permitted in vertical runs penetratingone or more floors and in vertical runs in a shaft:









Informational Note: See 805 800 .26 for firestop requirements for floor penetrations.

(E) Risers — Cables and Innerducts Cables in Metal Raceways.

The following cables and innerducts shall be permitted in metal raceways in a riser having firestops at eachfloor:








(F) Risers — Cables , Raceways, and Cable Routing Assemblies in Fireproof Shafts.

The following cables, raceways, and cable routing assemblies shall be permitted to be installed in fireproofriser shafts having firestops at each floor:













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The following cables , raceways, and cable routing assemblies shall be permitted in one- and two-familydwellings:












(H) Cable Trays.

The following wires , cables, and raceways and cables shall be permitted to be supported by cable trays:








The following wires , cables, raceways, and cable routing assemblies and cables shall be permitted to beinstalled in distributing frames and cross-connect arrays:












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The following wires , cables, raceways, and cable routing assemblies and cables shall be permitted to beinstalled in building locations other than the locations covered in 805.113(B) through (I):
















The following cables, raceways, and cable routing assemblies wires and cables shall be permitted to beinstalled in multifamily dwellings in locations other than the locations covered in 805.113(B) through (G):
















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The following wires , cables, raceways, and cable routing assemblies and cables shall be permitted to beinstalled in one- and two-family dwellings in locations other than the locations covered in 805.113(B)through (F):




















Public Comment No. 1673-NFPA 70-2018 [New Part after V.] Linked change with acceptance of PC-1673

Related Item

• FR 7512



Organization: Bicsi

Street Address:

City:

State:

Zip:


Committee: NEC-P16


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805.154 Applications of Listed Communications Wires , Cables, and Raceways, and Listed Cable RoutingAssemblies and Cables .


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Permitted and nonpermitted applications of listed communications wires , cables, and raceways, and listedcable routing assemblies, and cables shall be in accordance with one of the following: Listedcommunications wires and cables as indicated in Table 805.154(a) Listed communications raceways asindicated in Table 805 . 154(b)

Listed cable routing assemblies as indicated in Table 805.154(c)

The permitted applications shall be subject to the installation requirements of of 805.110 and 805. 113.The substitutions for communications cables listed in Table 805.154(d b ) and illustrated in Figure 805.154shall be permitted.


Applications

Wire and Cable Type

CMP CMRCMGCM

CMX CMUC

Hybrid Powerand


CommunicatiWires


In fabricatedducts

Y* N N N N N N


Y* Y* Y* Y* N N Y*



Y* N N N N N N


Y* Y* Y* Y* N N Y*


Y* N N N N N N


Y* N N N N N N


Y* N N N N N N


Y* Y* Y* Y* N N N

In risers


In metalraceways

Y* Y* Y* Y* N N N

In fireproofshafts

Y* Y* Y* Y* N N N


Y* Y* N N N N N


Y* Y* N N N N N


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Applications

Wire and Cable Type

CMP CMRCMGCM

CMX CMUC

Hybrid Powerand


CommunicatiWires


Y* Y* N N N N N


Y* Y* N N N N N


Y* Y* Y* Y* N Y* N




Y* Y* Y* Y* Y* Y* N


Y* Y* Y* Y* Y* N N

Innonconcealedspaces

Y* Y* Y* Y* Y* N


Y* Y* Y* N N N


N N N N Y* N


Y* Y* Y* N N N


Y* Y* Y* Y* N N


Y* Y* Y* N N N


Y* Y* Y* N N N


Y* Y* Y* N N N


Y* Y* Y* N N N


Y* Y* Y* N N N


Y* Y* Y* N N N


Informational Note No. 1: Part V of Article 800 covers installation methods within buildings. This table


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covers the applications of listed communications wires, cables, and raceways in buildings. See thedefinition of Point of Entrance in 805.2.



Listed Communications Raceway Type Applications Plenum Riser General-Purpose In ducts specificallyfabricated for environmental air as described in 300.22(B) In fabricated ducts N N N In metal raceway thatcomplies with 300.22(B) N N N In other spaces used for environmental air (plenums) as described in300.22(C) In other spaces used for environmental air Y* N N In metal raceway that complies with300.22(C) Y* Y* Y* In plenum cable routing assemblies N N N Supported by open metal cable trays Y* N NSupported by solid bottom metal cable trays with solid metal covers Y* Y* Y* In risers In verticalruns Y* Y* N In metal raceways Y* Y* Y* In fireproof shafts Y* Y* Y* In plenum cable routingassemblies N N N In riser cable routing assemblies N N N In one- and two-family dwellings Y* Y* Y* Withinbuildings in other than air-handling spaces and risers General Y* Y* Y* In one- and two-familydwellings Y* Y* Y* In multifamily dwellings Y* Y* Y* In nonconcealed spaces Y* Y* Y* Supported bycable trays Y* Y* Y* Under carpet, modular flooring, and planks N N N In distributing frames and cross-connect arrays Y* Y* Y* In any raceway recognized in Chapter 3 Y* Y* Y* In plenum cable routingassemblies N N N In riser cable routing assemblies N N N In general-purpose cable routingassemblies N N N



Listed Cable Routing Assembly Type Applications Plenum Riser General-Purpose In ducts specificallyfabricated for environmental air as described in 300.22(B) In fabricated ducts N N N In metal raceway thatcomplies with 300.22(B) N N N In other spaces used for environmental air (plenums) as described in300.22(C) In other spaces used for environmental air Y* N N In metal raceway that complies with300.22(C) N N N In plenum communications raceways N N N Supported by open metal cable trays Y* N NSupported by solid bottom metal cable trays with solid metal covers N N N In risers In vertical runs Y* Y* NIn metal raceways N N N In fireproof shafts Y* Y* Y* In plenum communications raceways N N N In risercommunications raceways N N N In one- and two-family dwellings Y* Y* Y* Within buildings in other thanair-handling spaces and risers General Y* Y* Y* In one- and two-family dwellings Y* Y* Y* In multifamilydwellings Y* Y* Y* In nonconcealed spaces Y* Y* Y* Supported by cable trays Y* Y* Y* Under carpet,modular flooring, and planks N N N In distributing frames and cross-connect arrays Y* Y* Y* In anyraceway recognized in Chapter 3 N N N In plenum communications raceways N N N In risercommunications raceways N N N In general-purpose communications raceways N N N


Table 805.154(d) Cable Substitutions


CMR CMP

CMG, CM CMP, CMR




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Related Item

• FR 7512





Street Address:

City:

State:

Zip:


Committee: NEC-P16





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805.154 Applications of Listed Communications Wires , Cables, and Raceways, and Listed Cable RoutingAssemblies and Cables .


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Permitted and nonpermitted applications of listed communications wires , cables, and raceways, and listedcable routing assemblies, and cables shall be in accordance with one of the following: Listedcommunications wires and cables as indicated in Table 805.154(a) Listed communications raceways asindicated in Table 805 . 154(b)

Listed cable routing assemblies as indicated in Table 805.154(c)

The permitted applications shall be subject to the installation requirements of 805.110 and 805.113. Thesubstitutions for communications cables listed in Table 805.154(d b ) and illustrated in Figure 805.154 shallbe permitted.


Applications

Wire and Cable Type

CMP CMRCMGCM

CMX CMUC

Hybrid Powerand


CommunicatiWires


In fabricatedducts

Y* N N N N N N


Y* Y* Y* Y* N N Y*



Y* N N N N N N


Y* Y* Y* Y* N N Y*


Y* N N N N N N


Y* N N N N N N


Y* N N N N N N


Y* Y* Y* Y* N N N

In risers


In metalraceways

Y* Y* Y* Y* N N N

In fireproofshafts

Y* Y* Y* Y* N N N


Y* Y* N N N N N


Y* Y* N N N N N


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Applications

Wire and Cable Type

CMP CMRCMGCM

CMX CMUC

Hybrid Powerand


CommunicatiWires


Y* Y* N N N N N


Y* Y* N N N N N


Y* Y* Y* Y* N Y* N




Y* Y* Y* Y* Y* Y* N


Y* Y* Y* Y* Y* N N

Innonconcealedspaces

Y* Y* Y* Y* Y* N


Y* Y* Y* N N N


N N N N Y* N


Y* Y* Y* N N N


Y* Y* Y* Y* N N


Y* Y* Y* N N N


Y* Y* Y* N N N


Y* Y* Y* N N N


Y* Y* Y* N N N


Y* Y* Y* N N N


Y* Y* Y* N N N


Informational Note No. 1: Part V of Article 800 covers installation methods within buildings. This table


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covers the applications of listed communications wires, cables, and raceways in buildings. See thedefinition of Point of Entrance in 805.2.


Table 805.154(

b) Applications of Listed Communications Raceways in Buildings

Listed Communications Raceway Type Applications Plenum Riser General-Purpose In ducts specificallyfabricated for environmental air as described in 300.22(B) In fabricated ducts N N N In metal raceway thatcomplies with 300.22(B) N N N In other spaces used for environmental air (plenums) as described in300.22(C) In other spaces used for environmental air Y* N N In metal raceway that complies with300.22(C) Y* Y* Y* In plenum cable routing assemblies N N N Supported by open metal cable trays Y* N NSupported by solid bottom metal cable trays with solid metal covers Y* Y* Y* In risers In verticalruns Y* Y* N In metal raceways Y* Y* Y* In fireproof shafts Y* Y* Y* In plenum cable routingassemblies N N N In riser cable routing assemblies N N N In one- and two-family dwellings Y* Y* Y* Withinbuildings in other than air-handling spaces and risers General Y* Y* Y* In one- and two-familydwellings Y* Y* Y* In multifamily dwellings Y* Y* Y* In nonconcealed spaces Y* Y* Y* Supported bycable trays Y* Y* Y* Under carpet, modular flooring, and planks N N N In distributing frames and cross-connect arrays Y* Y* Y* In any raceway recognized in Chapter 3 Y* Y* Y* In plenum cable routingassemblies N N N In riser cable routing assemblies N N N In general-purpose cable routingassemblies N N N



Listed Cable Routing Assembly Type Applications Plenum Riser General-Purpose In ducts specificallyfabricated for environmental air as described in 300.22(B) In fabricated ducts N N N In metal raceway thatcomplies with 300.22(B) N N N In other spaces used for environmental air (plenums) as described in300.22(C) In other spaces used for environmental air Y* N N In metal raceway that complies with300.22(C) N N N In plenum communications raceways N N N Supported by open metal cable trays Y* N NSupported by solid bottom metal cable trays with solid metal covers N N N In risers In vertical runs Y* Y* NIn metal raceways N N N In fireproof shafts Y* Y* Y* In plenum communications raceways N N N In risercommunications raceways N N N In one- and two-family dwellings Y* Y* Y* Within buildings in other thanair-handling spaces and risers General Y* Y* Y* In one- and two-family dwellings Y* Y* Y* In multifamilydwellings Y* Y* Y* In nonconcealed spaces Y* Y* Y* Supported by cable trays Y* Y* Y* Under carpet,modular flooring, and planks N N N In distributing frames and cross-connect arrays Y* Y* Y* In anyraceway recognized in Chapter 3 N N N In plenum communications raceways N N N In risercommunications raceways N N N In general-purpose communications raceways N N N



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Table 805.154(

d) Cable Substitutions


CMR CMP

CMG, CM CMP, CMR







Public Comment No. 1686-NFPA 70-2018 [New Part after V.] Linked action after acceptance of PC-1686

Related Item

• FR 7512



Organization: Bicsi

Street Address:

City:

State:

Zip:


Committee: NEC-P16


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Communications wires and cables shall be listed in accordance with 805.179(A) through (J) and marked inaccordance with Table 805.179. Conductors in communications cables, other than in a coaxial cable, shallbe copper.


Exception: Voltage markings shall be permitted where the cable has multiple listings and voltage markingis required for one or more of the listings.



Cable Marking Type








(A) Type CMP.

Type CMP communications plenum cables shall be listed as being suitable for use in ducts, plenums, andother spaces used for environmental air and shall also be listed as having adequate fire-resistant and lowsmoke-producing characteristics.

Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less, an averageoptical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less whentested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke ofWires and Cables for Use in Air-Handling Spaces .

accordance with 800.179)A).

.


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(B) Type CMR.


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Type CMR communications riser cables shall be listed as being suitable for use in a vertical run in a shaftor from floor to floor and shall also be listed as having fire-resistant characteristics capable of preventingthe carrying of fire from floor to floor.

Informational Note: One method of defining fire-resistant characteristics capable of preventing the carryingof fire from floor to floor is that the cables pass the requirements of ANSI/UL 1666-2011, Standard Test forFlame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically in Shafts

in accordance with 800.179(B) .

(C) Type CMG.

Type CMG general-purpose communications cables shall be listed as being suitable for general-purposecommunications use, with the exception of risers and plenums, and shall also be listed as being resistantto the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is for the damage (charlength) not to exceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables inCable Trays,” as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires andCables .


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(D) Type CM.

Type CM communications cables shall be listed

as being suitable for general-purpose communications use, with the exception of risers and plenums, andshall also be listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do notspread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test forElectrical and Optical-Fiber Cables . The smoke measurements in the test method are not applicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not to exceed1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables in Cable Trays,” as describedin CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables .


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in accordance with 800.179(C).

(E) Type CMX.

Type CMX limited-use communications cables shall be listed

as being suitable for use in dwellings and for use in raceway and shall also be listed as being resistant toflame spread. Informational Note: One method of determining that cable is resistant to flame spread is bytesting the cable to the VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, Reference Standard forElectrical Wires, Cables and Flexible Cords


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in accordance with 800.179(D) .


Type CMUC undercarpet communications wires and cables shall be listed as being suitable forundercarpet use and shall also be listed as being resistant to flame spread.

Informational Note: One method of determining that cable is resistant to flame spread is bytesting the cable to the VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, ReferenceStandard for Electrical Wires, Cables and Flexible Cords .


Cables that are used for survivability of critical circuits under fire conditions shall be listed and meeteither 805.179(G)(1) or 805.179(G)(2) as follows:

Informational Note: The listing organization provides information for circuit integrity (CI) cableand electrical circuit protective systems, including installation requirements required to maintainthe fire rating.


Circuit integrity (CI) cables specified in 805.179(A) through (D), and used for survivability of criticalcircuits, shall have an additional classification using the suffix “CI.” In order to maintain its listed firerating, circuit integrity (CI) cable shall only be installed in free air.

Informational Note: One method of defining circuit integrity (CI) cable is by establishing aminimum 2-hour fire resistance rating for the cable when tested in accordance withANSI/UL 2196-2006, Standard for Tests of Fire-Resistive Cable .


Cables specified in 805.179(A) through (D) and 805.179(G)(1) , that are part of an electrical circuitprotective system, shall be fire-resistive cable identified with the protective system number on theproduct, or on the smallest unit container in which the product is packaged, and shall be installed inaccordance with the listing of the protective system.

Informational Note No. 1: One method of defining an electrical circuit protective system is byestablishing a minimum 2-hour fire resistance rating for the system when tested in accordancewith UL Subject 1724, Outline of Investigation for Fire Tests for Electrical Circuit ProtectiveSystems .

Informational Note No. 2: The listing organization provides information for electrical circuitprotective systems (FHIT), including installation requirements for maintaining the fire rating.


Types CMP-LP, CMR-LP, CMG-LP, and CM-LP communications limited power cables shall be listed assuitable for carrying power and data up to a specified current limit for each conductor without exceedingthe temperature rating of the cable where the cable is installed in cable bundles in free air or installedwithin a raceway, cable tray, or cable routing assembly. The cables shall be marked with the suffix“-LP(XXA)”, where XX designates the current limit in amperes per conductor.

Informational Note: An example of the marking on a communications cable with an LP rating is"CMP-LP (0.6A)( 75°C) 23AWG 4 pair," which indicates that it is a 4-pair plenum cable with 23AWG conductors, a temperature rating of 75°C, and a current limit of 0.6 ampere.


Communications wires, such as distributing frame wire and jumper wire, shall be listed as beingresistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables donot spread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-ReleaseTest for Electrical and Optical-Fiber Cables . The smoke measurements in the test method arenot applicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not toexceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test— Cables in CableTrays,” as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables .


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Listed hybrid power and communications cables shall be permitted where the power cable is a listedType NM or NM-B, conforming to Part III of Article 334, and the communications cable is a listed TypeCM, the jackets on the listed NM or NM-B, and listed CM cables are rated for 600 volts minimum, andthe hybrid cable is listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables donot spread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-ReleaseTest for Electrical and Optical-Fiber Cables . The smoke measurements in the test method arenot applicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not toexceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables in CableTrays,” as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables .


This PC coordinates with PC 63 moves the listing requirements for plenum, riser, general-purpose and limited-use cables to 800.179 in the new general Article 800.








Related Item

• FR 7512





Street Address:

City:

State:

Zip:


Committee: NEC-P16





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Communications wires and cables shall be listed in accordance with 805.179(A) through (J) and marked inaccordance with Table 805.179. Conductors in communications cables, other than in a coaxial cable, shallbe copper.





Cable Marking Type









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(A) Type CMP.

Type CMP communications plenum cables shall be listed

as being suitable for use in ducts, plenums, and other spaces used for environmental air and shall also belisted as having adequate fire-resistant and low smoke-producing characteristics.

Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistantcable is that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical densityof 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordancewith NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Usein Air-Handling Spaces

in accordance with 800.179(A) .

(B)

Type CMR.

Type CMR communications riser cables shall be listed

as being suitable for use in a vertical run in a shaft or from floor to floor and shall also be listed as havingfire-resistant characteristics capable of preventing the carrying of fire from floor to floor.



(C)

Type CMG.

Type CMG general-purpose communications cables shall be listed


Informational Note: One method of defining resistant to the spread of fire is for the damage (char length)not to exceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables in Cable Trays,”as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables .


(D)

Test Methods for Electrical Wires and Cables .

Type CM.

Type CM communications cables shall be listed


Informational Note: One method of defining resistant to the spread of fire is that the cables do not spreadfire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” in ANSI/UL 1685-2010,Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables . The smoke measurements in the test method are not applicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not to exceed1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables in Cable Trays,” as described inCSA C22.2 No. 0.3-09,


(E) Type CMX.

Type CMX limited-use communications cables shall be listed in accordance with 800.179(D).


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(E) Type CMX.

Type CMX limited-use communications cables shall be listed as being suitable for use in dwellings and foruse in raceway and shall also be listed as being resistant to flame spread.



Type CMUC undercarpet communications wires and cables shall be listed as being suitable for undercarpetuse and shall also be listed as being resistant to flame spread.



Cables that are used for survivability of critical circuits under fire conditions shall be listed and meet either805.179(G)(1) or 805.179(G)(2)as follows:

Informational Note: The listing organization provides information for circuit integrity (CI) cable andelectrical circuit protective systems, including installation requirements required to maintain the firerating.


Circuit integrity (CI) cables specified in 805.179(A) through (D), and used for survivability of critical circuits,shall have an additional classification using the suffix “CI.” In order to maintain its listed fire rating, circuitintegrity (CI) cable shall only be installed in free air.

Informational Note: One method of defining circuit integrity (CI) cable is by establishing a minimum2-hour fire resistance rating for the cable when tested in accordance with ANSI/UL 2196-2006,Standard for Tests of Fire-Resistive Cable.


Cables specified in 805.179(A) through (D) and 805.179(G)(1), that are part of an electrical circuitprotective system, shall be fire-resistive cable identified with the protective system number on the product,or on the smallest unit container in which the product is packaged, and shall be installed in accordance withthe listing of the protective system.

Informational Note No. 1: One method of defining an electrical circuit protective system is byestablishing a minimum 2-hour fire resistance rating for the system when tested in accordance withUL Subject 1724, Outline of Investigation for Fire Tests for Electrical Circuit Protective Systems.

Informational Note No. 2: The listing organization provides information for electrical circuit protectivesystems (FHIT), including installation requirements for maintaining the fire rating.


Types CMP-LP, CMR-LP, CMG-LP, and CM-LP communications limited power cables shall be listed assuitable for carrying power and data up to a specified current limit for each conductor without exceeding thetemperature rating of the cable where the cable is installed in cable bundles in free air or installed within araceway, cable tray, or cable routing assembly. The cables shall be marked with the suffix “-LP(XXA)”,where XX designates the current limit in amperes per conductor.

Informational Note: An example of the marking on a communications cable with an LP rating is"CMP-LP (0.6A)( 75°C) 23AWG 4 pair," which indicates that it is a 4-pair plenum cable with 23 AWGconductors, a temperature rating of 75°C, and a current limit of 0.6 ampere.


Communications wires, such as distributing frame wire and jumper wire, shall be listed as being resistant tothe spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do notspread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Testfor Electrical and Optical-Fiber Cables. The smoke measurements in the test method are notapplicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not toexceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test— Cables in Cable Trays,”as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables.


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Listed hybrid power and communications cables shall be permitted where the power cable is a listed TypeNM or NM-B, conforming to Part III of Article 334, and the communications cable is a listed Type CM, thejackets on the listed NM or NM-B, and listed CM cables are rated for 600 volts minimum, and the hybridcable is listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do notspread fire to the top of the tray in the “UL Flame Exposure, Vertical Flame Tray Test” inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Testfor Electrical and Optical-Fiber Cables. The smoke measurements in the test method are notapplicable.








Related Item

• FR-7512



Organization: Bicsi

Street Address:

City:

State:

Zip:


Committee: NEC-P16





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Public Comment No. 1372-NFPA 70-2018 [ New Section after 805.179(J) ]

ADD NEW 805.179(K)

(K) Optional Markings. Cables shall be permitted to be surface marked to indicate special characteristicsof the cable materials.



PI 1779 was resolved with the statement:“There is no need to provide for cable listings that have no application in the NEC. Optional markings are not prohibited.” However, cable installations that are under the purview of the NEC are often also required to have special characteristics because of the environment the cables are installed in. For example, wet locations, outdoor locations, spaces with limited or reduced ventilation capabilities, etc. As a result, it is not uncommon for cables to contain optional markings identifying these special material characteristics. Adding a new subheading (K) makes it clear that optional markings are permitted on cables. Optional marking permissions already appear in other parts of the NEC such as 310.120 (D), 400.6(B) and 402.9(B).




Related Item

• PI1779




Street Address:

City:

State:

Zip:


Committee: NEC-P16





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Where bonding or grounding is required, devices used to connect a shield, a sheath, or non–current-carrying metallic members of a cable to a bonding conductor or grounding electrode conductor shall belisted or be part of listed equipment.



Related Item

• FR 7512



Organization: Bicsi

Street Address:

City:

State:

Zip:


Committee: NEC-P16





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Cable routing assemblies and communications raceways shall be listed in accordance with 805.182(A)through (C). Cable routing assemblies shall be marked in accordance with Table 805.182(a) .Communications raceways shall be marked in accordance with Table 805.182(b) .

Informational Note: For information on listing requirements for both communications raceways andcable routing assemblies, see ANSI/UL 2024-5-2015, Cable Routing Assemblies andCommunications Raceways .


Type Marking Plenum Cable Routing Assembly Plenum Cable Routing Assembly Riser Cable RoutingAssembly Riser Cable Routing Assembly General-Purpose Cable Routing Assembly General-Purpose CableRouting Assembly


Type Marking Plenum Communications Raceway Plenum Communications Raceway Riser CommunicationsRaceway Riser Communications Raceway General-Purpose Communications Raceway General-PurposeCommunications Raceway


Plenum cable routing assemblies and plenum communications raceways shall be listed as having adequatefire-resistant and low-smoke-producing characteristics.

Informational Note No. 1: One method of defining cable routing assemblies and communicationsraceways that have adequate fire-resistant and low-smoke-producing characteristics is that theyexhibit a maximum flame spread index of 25 and a maximum smoke developed index of 50 whentested in accordance with ASTM E84-17a, Standard Test Method for Surface Burning Characteristicsof Building Materials , or ANSI/UL 723-2013, Standard Test Method for Surface BurningCharacteristics of Building Materials .

Informational Note No. 2: Another method of defining communications raceways that have adequatefire-resistant and low-smoke-producing characteristics is that they exhibit a maximum peak opticaldensity of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spreaddistance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015, Standard Methodof Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces .

Informational Note No. 3: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning andVentilating Systems , for information on materials exposed to the airflow in ceiling cavity and raisedfloor plenums.


Riser cable routing assemblies and riser communications raceways shall be listed as having adequate fire-resistant characteristics capable of preventing the carrying of fire from floor to floor.

Informational Note: One method of defining fire-resistant characteristics capable of preventing thecarrying of fire from floor to floor is that the cable routing assemblies and communications racewayspass the requirements of ANSI/UL 1666-2011, Standard Test for Flame Propagation Height ofElectrical and Optical-Fiber Cable Installed Vertically in Shafts .


General-purpose cable routing assemblies and general-purpose communications raceways shall be listedas being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cable routingassemblies and communications raceways do not spread fire to the top of the tray in the “UL FlameExposure, Vertical Flame Tray Test” in ANSI/UL 1685-2011, Standard for Safety for Vertical-TrayFire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables .




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Related Item

• FR 7512



Organization: Bicsi

Street Address:

City:

State:

Zip:


Committee: NEC-P16





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Plenum cable routing assemblies and plenum communications raceways shall be listed as having adequatefire-resistant and low-smoke-producing characteristics.

Informational Note No. 1: One method of defining cable routing assemblies and communicationsraceways that have adequate fire-resistant and low-smoke-producing characteristics is that theyexhibit a maximum flame spread index of 25 and a maximum smoke developed index of 50 whentested in accordance with ASTM E84-17a 18a , Standard Test Method for Surface BurningCharacteristics of Building Materials, or ANSI/UL 723-2013, Standard Test Method for SurfaceBurning Characteristics of Building Materials.

Informational Note No. 2: Another method of defining communications raceways that have adequatefire-resistant and low-smoke-producing characteristics is that they exhibit a maximum peak opticaldensity of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spreaddistance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015, Standard Methodof Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces.

Informational Note No. 3: See NFPA 90A-2018, Standard for the Installation of Air-Conditioning andVentilating Systems, for information on materials exposed to the airflow in ceiling cavity and raisedfloor plenums.


date update

Related Item

• FR8014




Street Address:

City:

State:

Zip:


Committee: NEC-P16





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Public Comment No. 1919-NFPA 70-2018 [ Definition: Abandoned Coaxial Cable. ]

Abandoned Coaxial Cable.

Installed coaxial cable that is not terminated at equipment other than a coaxial connector and not identifiedfor future use with a tag.







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This definition may be deleted from 820.2 as it is now covered in 800.2 [New].

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Point of Entrance.




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Point of Entrance.



This definition may be deleted from 820.2 and it is now contained in 800.2 [New].

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Point of Entrance.



This PC coordinates with FR 7512 which moves the definition of "Point of Entrance" to the new general article 800.










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Premises.



This PC coordinates with FR 7512 which moves the definition of "Premises" to the new general article 800.




Deletes definition of Premises in Article805



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Premises.




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Premises.



This definition may be deleted from 820.2 as it is now contained in 800.2 [New].

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See Part I of Article 100 . The definitions in this section shall apply only within Article 820 and 800.2 .


1) 800.2 is a proper citation for this Article and does not require other PCs to occur.2) If PC-1800, PC-1801, PC-1802, PC-1919 are all accepted, this change will further reinforce Article 800 as a general source of applicable requirements

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Circuits and equipment shall comply with 820.3(A) through (I F ). Only those sections of Chapters 1 through7 referenced in Article 820 shall apply to community antenna television and radio distribution systems.

(A)


CATV equipment installed in a location that is classified in accordance with 500.5 and 505.5 shallcomply with the applicable requirements of Chapter 5.







(E)

General requirements for communications systems. The general requirements for communicationssystems in Article 820 shall apply to communications circuits unless modified by Article 820.

(B) Installations of Conductive and Nonconductive Optical Fiber Cables.


(F C ) Communications Circuits.


(G D ) Network-Powered Broadband Communications Systems.


(H E ) Premises-Powered Broadband Communications Systems.


(I F ) Alternate Wiring Methods.













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Circuits and equipment shall comply with 820.3(A) through (I C ). Only those sections of Chapters 1through 7 referenced in Article 820 shall apply to community antenna television and radio distributionsystems.

(E)

(A)


CATV equipment installed in a location that is classified in accordance with 500.5 and 505.5 shall complywith the applicable requirements of Chapter 5.







General Requirements for Coaxial Cables and Community Antenna Television and RadioDistribution Systems .

Article 800 shall apply to coaxial cables and community antenna television and radio distributionsystems unless modified by Article 820 .

(B) Installations of Conductive and Nonconductive Optical Fiber Cables.


(I)

(F) Communications Circuits.


(G) Network-Powered Broadband Communications Systems.


(H) Premises-Powered Broadband Communications Systems.


C) Alternate Wiring Methods.





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Community television and radio distribution systems shall be installed in a neat and workmanlike manner.Coaxial cables installed exposed on the surface of ceiling and sidewalls shall be supported by the buildingstructure in such a manner that the cables will not be damaged by normal building use. Such cables shallbe secured by hardware including straps, staples, cable ties, hangers, or similar fittings designed andinstalled so as not to damage the cable. The installation shall also conform to 300.4(D) and 300.11.Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in otherspaces used for environmental air (plenums) shall be listed as having low smoke and heat releaseproperties in accordance with 805.170(C).

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568–2006, Standard for Installing Commercial Building Telecommunications Cabling ;ANSI/ in ANSI/ TIA-568.1-D-2015, Commercial Building Telecommunications Infrastructure Standard;ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces; ANSI/TIA-570-C-2012,Residential Telecommunications Infrastructure Standard; ANSI/TIA-1005-A-2012,Telecommunications Infrastructure Standard for Industrial Premises; ANSI/TIA-1179-2010,Healthcare Facility Telecommunications Infrastructure Standard; ANSI/TIA-4966-2014,Telecommunications Infrastructure Standard for Educational Facilities; and other ANSI-approvedinstallation standards.





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Community television and radio distribution systems shall be installed in a neat and workmanlike manner.Coaxial cables installed exposed on the surface of ceiling and sidewalls shall be supported by the buildingstructure in such a manner that the cables will not be damaged by normal building use. Such cables shallbe secured by hardware including straps, staples, cable ties, hangers, or similar fittings designed andinstalled so as not to damage the cable. The installation shall also conform to 300.4(D) and 300.11 .Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in otherspaces used for environmental air (plenums) shall be listed as having low smoke and heat releaseproperties in accordance with 805.170(C) .

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568–2006, Standard for Installing Commercial Building Telecommunications Cabling ; ANSI/TIA-568.1-D-2015, Commercial Building Telecommunications Infrastructure Standard ; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces ; ANSI/TIA-570-C-2012, ResidentialTelecommunications Infrastructure Standard ; ANSI/TIA-1005-A-2012, TelecommunicationsInfrastructure Standard for Industrial Premises ; ANSI/TIA-1179-2010, Healthcare FacilityTelecommunications Infrastructure Standard ; ANSI/TIA-4966-2014, TelecommunicationsInfrastructure Standard for Educational Facilities ; and other ANSI-approved installation standards.









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Community television and radio distribution systems shall be installed in a neat and workmanlike manner.Coaxial cables installed exposed on the surface of ceiling and sidewalls shall be supported by the buildingstructure in such a manner that the cables will not be damaged by normal building use. Such cables shallbe secured by hardware including straps, staples, cable ties, hangers, or similar fittings designed andinstalled so as not to damage the cable. The installation shall also conform to 300.4(D) and 300.11 .Nonmetallic cable ties and other nonmetallic cable accessories used to secure and support cables in otherspaces used for environmental air (plenums) shall be listed as having low smoke and heat releaseproperties in accordance with 805.170(C) .

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI568–2006, Standard for Installing Commercial Building Telecommunications Cabling ; ANSI/TIA-568.1-D-2015, Commercial Building Telecommunications Infrastructure Standard ; ANSI/TIA-569-D-2015, Telecommunications Pathways and Spaces ; ANSI/TIA-570-C-2012, ResidentialTelecommunications Infrastructure Standard ; ANSI/TIA-1005-A-2012, TelecommunicationsInfrastructure Standard for Industrial Premises ; ANSI/TIA-1179-2010, Healthcare FacilityTelecommunications Infrastructure Standard ; ANSI/TIA-4966-2014, TelecommunicationsInfrastructure Standard for Educational Facilities ; and other ANSI-approved installation standards.





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With the acceptance of PC-1913, this existing material in Article 800.25 will be applicable to CATV type coaxial cable, allowing it to be removed here.



Public Comment No. 1913-NFPA 70-2018 [Definition: AbandonedCable.]

Acceptance of PC-1913 allows thisdeletion

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Overhead (aerial) coaxial cables, prior to the point of grounding, as specified in 820.93, shall comply with820 800 .44(A) through and 820.44(E) .

(

A)

On Poles and In-Span

. Where coaxial cables and electric light or power conductors are supported by the same pole or are runparallel to each other in-span, the conditions described in 820.44

(A)

(1) through 820.44(A)(4) shall be met.(1)

Relative Location.

Where practicable, the coaxial cables shall be located below the electric light or power conductors.


Coaxial cables shall not be attached to cross-arm that carries electric light or power conductors.

(3) Climbing Space.

The climbing space through coaxial cables shall comply with the requirements of 225.14(D) .

(4) Clearance.

Lead-in or overhead (aerial) -drop coaxial cables from a pole or other support, including the point of initialattachment to a building or structure, shall be kept away from electric light, power, Class 1, or non–power-limited fire alarm circuit conductors so as to avoid the possibility of accidental contact.

Exception: Where proximity to electric light, power, Class 1, or non–power-limited fire alarm circuitconductors cannot be avoided, the installation shall provide clearances of not less than 300 mm (12 in.)from electric light, power, Class 1, or non–power-limited fire alarm circuit conductors. The clearancerequirement shall apply at all points along the drop, and it shall increase to 1.0 m (40 in.) at the pole.

(B) Above Roofs.

Coaxial cables shall have a vertical clearance of not less than 2.5 m (8 ft) from all points of roofs abovewhich they pass.

Exception No. 1: Vertical clearance requirements shall not apply to auxiliary buildings such as garagesand the like.

Exception No. 2: A reduction in clearance above only the overhanging portion of the roof to not less than450 mm (18 in.) shall be permitted if (1) not more than 1.2 m (4 ft) of communications service dropconductors pass above the roof overhang, and (2) they are terminated at a raceway mast or otherapproved support.


(C)

On

Masts.

Overhead (aerial) coaxial cables shall be permitted to be attached to an above-the-roof raceway mast thatdoes not enclose or support conductors of electric light or power circuits.

(D) Between

Buildings.


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Coaxial cables extending between buildings or structures, and also the supports or attachment fixtures,shall be identified and shall have sufficient strength to withstand the loads to which they might be subjected.

Exception:

Where

a coaxial cable does not have sufficient strength to be self-supporting, it shall be

attached to

a supporting messenger cable that, together with the attachment fixtures or supports, shall be acceptablefor the purpose and shall have sufficient strength to withstand the loads to which they may be subjected.

(E) On Buildings.

Where attached to buildings, coaxial cables shall be securely fastened in such a manner that they will beseparated from other conductors in accordance with 820.44(E A )(1) , and 820.44(E A )(2), and820 . 44(E)(3).


The coaxial cable shall have a separation of at least 100 mm (4 in.) from electric light, power, Class 1, ornon–power-limited fire alarm circuit conductors not in raceway or cable, or shall be permanently separatedfrom conductors of the other system by a continuous and firmly fixed nonconductor in addition to theinsulation on the wires.


Coaxial cable shall be installed so that there will be no unnecessary interference in the maintenance of theseparate systems. In no case shall the conductors, cables, messenger strand, or equipment of one systemcause abrasion to the conductors, cable, messenger strand, or equipment of any other system.


Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between any coaxial cable andlightning conductors.

Informational Note No. 1: For additional information regarding overhead (aerial) wires and cables,see ANSI C2-2012, National Electrical Safety Code , Part 2, Safety Rules for Overhead Lines.

Informational Note No. 2: See Section 4.6 of NFPA 780-2017, Standard for the Installation ofLightning Protection Systems , for the calculation of sideflash distance.


With the intent of FR 7512 and proposed changes listed within PC-1575 and PC-1597, the text indicated can be deleted as it will be redundant with the general requirements listed within Article 800.44 and the newly created Article 800.53.



Public Comment No. 1575-NFPA 70-2018 [Section No. 800.44]Linked action with acceptance ofPC-1575



Public Comment No. 1843-NFPA 70-2018 [Sections 840.45,840.46]

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Underground coaxial cables entering buildings shall comply with 820 800 .47(A) and and 820.47(B A ).

(B)


Underground coaxial cables in a duct, pedestal, handhole enclosure, or manhole that contains electriclight, power, or Class 1 or non–power-limited fire alarm circuit conductors shall be in a section permanentlyseparated from such conductors by means of a suitable barrier.

Direct-Buried Cables and Raceways.

Direct-buried coaxial cable shall be separated at least 300 mm (12 in.) from conductors of any light orpower, non–power-limited fire alarm circuit conductors, or Class 1 circuit.

Exception No. 1: Separation shall not be required where electric service conductors or coaxial cables areinstalled in raceways or have metal cable armor.

Exception No. 2: Separation shall not be required where electric light or power branch-circuit or feederconductors or Class 1 circuit conductors are installed in a raceway or in metal-sheathed, metal-clad, orType UF or Type USE cables; or the coaxial cables have metal cable armor or are installed in a raceway.


With the intent of FR 7512, the acceptance of PC-1609 creates Article 800.47, which allows this text within Article 805, 820, 830 to be removed.




Linked action with approval ofPC-1609

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Metal conduit containing entrance coaxial cable shall be connected by a bonding conductor or groundingelectrode conductor to a grounding electrode or, where present, the building grounding electrode system insystem in accordance with 820.100(B).













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Metal conduit containing entrance coaxial cable shall be connected by a bonding conductor or groundingelectrode conductor to the building grounding electrode system in accordance with 820.100(B) .



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Metal conduit containing entrance coaxial cable shall be connected by a bonding conductor or groundingelectrode conductor to the building grounding electrode system in accordance with 820.100(B).






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820.100 Cable Bonding and Grounding.

The shield of the coaxial cable shall be bonded or grounded as specified in 800.100 and 820.100( A)through ( E).

Exception: For communications systems using coaxial cable completely contained within the building(i.e., they do not exit the building) or the exterior zone of protection defined by a 46 m (150 ft) radiusrolling sphere and isolated from outside cable plant, the shield shall be permitted to be grounded by aconnection to an equipment grounding conductor as described in 250.118. Connecting to an equipmentgrounding conductor through a grounded receptacle using a dedicated bonding jumper and apermanently connected listed device shall be permitted. Use of a cord and plug for the connection to anequipment grounding conductor shall not be permitted.

Informational Note: See 4.8.3.1 of NFPA 780-2017, Standard for the Installation of LightningProtection Systems, for the theory of the term rolling sphere.

(


(1) Insulation.


(2) Material.


(3) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG. It shall have acurrent-carrying capacity not less than the outer sheath of the coaxial cable. The bonding conductor orgrounding electrode conductor shall not be required to exceed 6 AWG.

(4) Length.



Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximumbonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate groundingelectrode as specified in 250.52(A)(5) , (A)(6), or (A)(7) shall be used, the grounding electrode conductorshall be connected to the separate grounding electrode in accordance with 250.70 , and the separategrounding electrode shall be connected to the power grounding electrode system in accordance with820.100(D) .





(B) Electrode.

The bonding conductor or grounding electrode conductor shall be connected in accordance with820.100(B)(1) , 820.100(B)(2) , or 820.100(B)(3) .


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For purposes of this section, the mobile home service equipment or the mobile home disconnectingmeans, as described in 820.93 , shall be considered accessible.




(2) If the building or structure served has no intersystem bonding termination or grounding means, asdescribed in 820.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodes describedin 250.52(A)(5) , (A)(7), and (A)(8). Steam, hot water pipes, or lightning protection systemconductors shall not be employed as grounding electrodes for bonding conductors or groundingelectrode conductors.




A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between thecommunity antenna television system's grounding electrode and the power grounding electrode system atthe building or structure served where separate electrodes are used.




E) Shield Protection Devices.

Grounding of a coaxial drop cable shield by means of a protective device that does not interrupt thegrounding system within the premises shall be permitted.


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(A) Grounding.


(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall ofthe mobile home it serves, the coaxial cable shield ground, or surge arrester grounding terminal, shallbe connected to a grounding electrode conductor or grounding electrode in accordance with820.100(B)(3) .

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 andlocated within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the coaxial cable shieldground, or surge arrester grounding terminal, shall be connected to a grounding electrode inaccordance with 820.100(B)(3) .

(B) Bonding.

The coaxial cable shield grounding terminal, surge arrester grounding terminal, or grounding electrodeshall be connected to the metal frame or available grounding terminal of the mobile home with a copperconductor not smaller than 12 AWG under any of the following conditions:









Public Comment No. 1874-NFPA 70-2018 [Section No.840.101(A)]

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Coaxial cables shall be permitted to be installed in plenum listed communications raceways , risercommunications raceways, and general-purpose communications raceways, selected in accordance withTable 805 800 .154(b) , listed in accordance with 805.182 , and installed in accordance with 805.113 and362.24 through 362.56 , where the requirements applicable to electrical nonmetallic tubing (ENT)apply. a) .


Listed plenum communications raceways , listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805 800 .154(b a ) shall be permittedto be installed as innerduct in any type of listed raceway permitted in Chapter 3.




Coaxial cables shall be permitted to be installed in plenum listed cable routing assemblies , riser cablerouting assemblies, and general-purpose cable routing assemblies selected in accordance with Table805 800 .154(c) , listed in accordance with 805.182 , and installed in accordance with 805.110(C) and805.113 . b) .

(D) Cable Trays.















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Coaxial cables shall be permitted to be installed in plenum listed communications raceways , risercommunications raceways, and general-purpose communications raceways, selected in accordance withTable 805.154(b) , listed in accordance with 805.182 , and installed in accordance with 805.113 and362.24 through 362.56 , where the requirements applicable to electrical nonmetallic tubing (ENT)apply. that comply with 800.110(A).


Listed plenum communications raceways , listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805.154(b that comply with800.110(B ) shall be permitted to be installed as innerduct in any type of listed raceway permitted inChapter 3.




Coaxial cables shall be permitted to be installed in plenum listed cable routing assemblies , riser cablerouting assemblies, and general-purpose cable routing assemblies selected in accordance with Table805.154(c) , listed in accordance with 805.182 , and installed in accordance with 805. that comply with800. 110(C) and 805 . 113.

(D) Cable Trays.







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Installation of coaxial cables shall comply with 820.113(A) through (K). Installation of raceways and cablerouting assemblies shall comply with 820.110 .


While coaxial cables may use the structures indicated in 820.110, this removes non-germane reference to the focus of Art. 820.113, the installation of coaxial cables.

This also correct reference from 820.26 to 800.26



Public Comment No. 1806-NFPA 70-2018 [SectionNo. 820.26]

Acceptance of PC-1806 will mandate referencechanges indivated

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820.154 Applications of Listed CATV Cables.


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Permitted and nonpermitted applications of listed coaxial cables shall be as indicated in Table 820.154(a).The permitted applications shall be subject to the installation requirements of 820.110 and 820.113. Thesubstitutions for coaxial cables in Table 820.154(b) and illustrated in Figure 820.154 shall be permitted.

Informational Note: The substitute cables in Table 820.154(b) and Figure 820.154 are only coaxial-type cables.




In ducts specificallyfabricated forenvironmental air asdescribed in 300.22(B)

In fabricated ducts asdescribed in 300.22(B)

Y* N N N

In metal raceway thatcomplies with 300.22(B)

Y* Y* Y* Y*

In other spaces used forenvironmental air(plenums) as described in300.22(C)

In other spaces used forenvironmental air (plenums)as described in 300.22(C)

Y* N N N

In metal raceway thatcomplies with 300.22(C)

Y* Y* Y* Y*


Y* N N N


Y* N N N

Supported by open metalcable trays

Y* N N N

Supported by solid-bottommetal cable trays with solidmetal covers

Y* Y* Y* Y*

In risers

In vertical runs Y* Y* N N




Y* Y* N N


Y* Y* N N


Y* Y* N N


Y* Y* N N


Y* Y* Y* Y*

Within buildings in otherthan air-handling spacesand risers

General Y* Y* Y* Y*


Y* Y* Y* Y*


In nonconcealedspaces

Y* Y* Y* Y*

Supported by cabletrays

Y* Y* Y* N

In distributing framesand cross-connectarrays

Y* Y* Y* N


Y* Y* Y* Y*


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Y* Y* Y* N

In plenum cablerouting assemblies

Y* Y* Y* N


Y* Y* Y* N


Y* Y* Y* N


Y* Y* Y* N

In general-purposecable routingassemblies

Y* Y* Y* N

Note: An “N” in the table indicates that the cable type shall not be permitted to be installed in theapplication. A “Y*” indicates that the cable type shall be permitted to be installed in the application, subjectto the limitations described in 820.113.

Informational Note No. 1: Part V of Article 820 covers installation methods within buildings. This tablecovers the applications of listed coaxial cables in buildings. The definition of Point of Entrance is in820 800 .2.

Informational Note No. 2: For information on the restrictions to the installation of communications cables inducts specifically fabricated for environmental air, see 820.113(B).



CATVP CMP, BLP

CATVR CATVP, CMP, CMR, BMR, BLP, BLR

CATV CATVP, CMP, CATVR, CMR, CMG, CM, BMR, BM, BLP, BLR, BL

CATVX CATVP, CMP, CATVR, CMR, CATV, CMG, CM, CMX, BMR, BM, BLP, BLR, BL, BLX



1) With FR 7512, the definition for "point of entrance" is locate in Art 800.2. 2) Per Figure 820.154, CMX is an


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approved substitution for CATVX, so the addition to Table 820.154(b) rectifies an omission that has been present since at least the NEC 2008.

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(A) Type CATVP.

Type CATVP community antenna television plenum coaxial cables shall be listed as being suitable for usein ducts, plenums, and other spaces used for environmental air and shall also be listed as having adequatefire-resistant and low-smoke-producing characteristics.

Informational Note: One method of defining a cable that is low-smoke-producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less, an averageoptical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less whentested in accordance with NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke ofWires and Cables for Use in Air-Handling Spaces .

in accordance with 800.179(A).

.

(B) Type CATVR.

Type CATVR community antenna television riser coaxial cables shall be listed as being suitable for use in avertical run in a shaft or from floor to floor and shall also be listed as having fire-resistant characteristicscapable of preventing the carrying of fire from floor to floor.


in accordance with 800.179(B).

.


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(C) Type CATV.

Type CATV community antenna television coaxial cables shall be listed as being suitable for general-purpose CATV use, with the exception of risers and plenums, and shall also be listed as being resistant tothe spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do not spreadfire to the top of the tray in the “UL Flame Exposure, Vertical Tray Flame Test” in ANSI/UL 1685-2010,Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables . The smoke measurements in the test method are not applicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not to exceed1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables in Cable Trays,” as described inCSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables .


(D) Type CATVX.

Type CATVX limited-use community antenna television coaxial cables shall be

listed as being suitable for use in dwellings and for use in raceways and shall also be listed as beingresistant to flame spread. Informational Note: One method of determining that cable is resistant to flamespread is by testing the cable to the VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, ReferenceStandard for Electrical Wires, Cables and Flexible Cords

listed in accordance with 800.179(D) .


Cable Marking Type



CATV CATV cable












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(A) Type CATVP.

Type CATVP community antenna television plenum coaxial cables shall be listed

as being suitable for use in ducts, plenums, and other spaces used for environmental air and shall also belisted as having adequate fire-resistant and low-smoke-producing characteristics.

Informational Note: One method of defining a cable that is low-smoke-producing cable and fire-resistantcable is that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical densityof 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordancewith NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Usein Air-Handling Spaces


(B)

Type CATVR.

Type CATVR community antenna television riser coaxial cables shall be listed

as being suitable for use in a vertical run in a shaft or from floor to floor and shall also be listed as havingfire-resistant characteristics capable of preventing the carrying of fire from floor to floor.



(C)

Type CATV.

Type CATV community antenna television coaxial cables shall be listed

as being suitable for general-purpose CATV use, with the exception of risers and plenums, and shall alsobe listed as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do notspread fire to the top of the tray in the “UL Flame Exposure, Vertical Tray Flame Test” inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-ReleaseTest for Electrical and Optical-Fiber Cables . The smoke measurements in the test method are notapplicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not toexceed 1.5 m (4 ft 11 in.) when performing the CSA “Vertical Flame Test — Cables in Cable Trays,”as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables .

(D)


(D) Type CATVX.

Type CATVX limited-use community antenna television coaxial cables shall be listed

as being suitable for use in dwellings and for use in raceways and shall also be listed as being resistant toflame spread.

Informational Note: One method of determining that cable is resistant to flame spread is by testing thecable to the VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, Reference Standard for ElectricalWires, Cables and Flexible Cords

in accordance with 800.179(D) .


Cable Marking Type



CATV CATV cable




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Public Comment No. 1370-NFPA 70-2018 [ New Section after 820.179(D) ]

ADD NEW 820.179(E)

(E) Optional Markings. Cables shall be permitted to be surface marked to indicate special characteristics ofthe cable materials.



PI 1780 was resolved with the statement:“There is no need to provide for cable listings that have no application in the NEC. Optional markings are not prohibited.” However, cable installations that are under the purview of the NEC are often also required to have special characteristics because of the environment the cables are installed in. For example, wet locations, outdoor locations, spaces with limited or reduced ventilation capabilities, etc. As a result, it is not uncommon for cables to contain optional markings identifying these special material characteristics. Adding a new subheading (E) makes it clear that optional markings are permitted on cables. Optional marking permissions already appear in other parts of the NEC such as 310.120 (D), 400.6(B) and 402.9(B).




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Public Comment No. 1921-NFPA 70-2018 [ Definition: Abandoned Network-Powered

Broadband Communicati... ]

Abandoned Network-Powered Broadband Communications Cable.

Installed network-powered broadband communications cable that is not terminated at equipment other thana connector and not identified for future use with a tag.







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Block.



The intent of FR 7512 was to create a general Article within Ch 8 applicable to multiple Ch 8 articles. As this definition appears in multiple articles, it should be moved to Art 800.2.





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Block.



This PC coordinates with PC 44 which moves the definition of block to the new general article 800.



Public Comment No. 44-NFPA 70-2018 [Section No. 800.2] Definitions in new Article 800

Public Comment No. 81-NFPA 70-2018 [Definition: Block.] Deletes definition of block from Article 805



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]



Informational Note: See Part I of Article 100 for two other definitions of Exposed : Exposed (asapplied to live parts) and Exposed (as applied to wiring methods).



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This definition and informational note may be deleted from 830.2 as it is now contained in 800.2 [New].

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Point of Entrance.




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Point of Entrance.



This PC coordinates with FR 7512 which moves the definition of "Point of Entrance" to the new general article 800.The extra words dealing with emerging from conduit have no practical application since all network-powered broadband cables are listed and the provision to extend the point of entrance was for unlisted entrance cables in Articles 805 (formerly 800) and 820..










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Circuits and equipment shall comply with 830.3(A) through (F C ). Only those sections of Chapters 1through 7 referenced in Article 830 shall apply to communications circuits and equipment.


Network

network -powered broadband communications circuits and equipment

installed in a location that is classified in accordance with 500

.

5 and 505.5 shall comply with the applicable requirements of Chapter 5.

(

B) Wiring in Ducts for Dust, Loose Stock, or Vapor Removal.






(E)

A) General requirements for communications systems. The general requirements for communicationssystems in Article 800 shall apply to

network-powered broadband communications circuits unless modified by Article 830.

(B) Output Circuits.



(2) Installations of community antenna television and radio distribution circuits — Part V of Article 820





(F C ) Protection Against Physical Damage.






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Circuits and equipment shall comply with 830.3(A) through (F C ). Only those sections of Chapters 1through 7 referenced in Article 830 shall apply to communications circuits and equipment.

(A)


Network-powered broadband communications circuits and equipment installed in a location that isclassified in accordance with 500.5 and 505.5 shall comply with the applicable requirements ofChapter 5.







(E)

General Requirements for Network-Powered Broadband Systems.

Article 800 shall apply to network-powered broadband communications systems, unless modified byArticle 830.



(1) Installations of communications circuits — Part V of Article 805Installations of

(2) community antenna television and radio distribution circuits — Part V of Article 820





(F C ) Protection Against Physical Damage.




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Network-powered broadband communications circuits and equipment shall be installed in a neat andworkmanlike manner. Cables installed exposed on the surface of ceilings and sidewalls shall be supportedby the building structure in such a manner that the cable will not be damaged by normal building use. Suchcables shall be secured by hardware, including straps, staples, cable ties, hangers, or similar fittings,designed and installed so as not to damage the cable. The installation shall also conform to 300.4(A), (D),(E), (F), and 300.11. Nonmetallic cable ties and other nonmetallic cable accessories used to secure andsupport cables in other spaces used for environmental air (plenums) shall be listed as having low smokeand heat release properties in accordance with 805.170(C).






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Network-powered broadband communications circuits and equipment shall be installed in a neat andworkmanlike manner. Cables installed exposed on the surface of ceilings and sidewalls shall be supportedby the building structure in such a manner that the cable will not be damaged by normal building use. Suchcables shall be secured by hardware, including straps, staples, cable ties, hangers, or similar fittings,designed and installed so as not to damage the cable. The installation shall also conform to 300.4(A), (D),(E), (F), and 300.11. Nonmetallic cable ties and other nonmetallic cable accessories used to secure andsupport cables in other spaces used for environmental air (plenums) shall be listed as having low smokeand heat release properties in accordance with 805.170(C) .

Informational Note No. 1: Accepted industry practices are described in ANSI/NECA/BICSI 568-2006

,

Standard for Installing Commercial Building Telecommunications Cabling ; ANSI/TIA-568.1-D-2015,Commercial Building Telecommunications Infrastructure Standard ; ANSI/TIA-569-D-2015,Telecommunications Pathways and Spaces ; ANSI/TIA-570-C-2012, Residential TelecommunicationsInfrastructure Standard ; ANSI/TIA-1005-A-2012, Telecommunications Infrastructure Standard forIndustrial Premises ; ANSI/TIA-1179-2010, Healthcare Facility Telecommunications InfrastructureStandard ; ANSI/TIA-4966-2014, Telecommunications Infrastructure Standard for Educational Facilities ;and other ANSI-approved installation standards.



and 800.24 .


With the restructure created by FR 7512, this removes redundancy of information between Article 800.24 and 830.24

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830.44 Overhead (Aerial) Cables.

Overhead (aerial) network-powered broadband communications cables shall comply with 830.44(A)through (G).

Informational Note: For additional information regarding overhead (aerial) wires and cables, seeANSI C2-2007, National Electrical Safety Code , Part 2, Safety Rules for Overhead Lines.


Where network-powered broadband communications cables and electric light or power conductors aresupported by the same pole or are run parallel to each other in-span, the conditions described in 800.44and 830.44(A)(1) through (A)(4) shall be met.


Where practicable, the network-powered broadband communications cables shall be located below theelectric light or power conductors.


Network-powered broadband communications cables shall not be attached to a cross-arm that carrieselectric light or power conductors.

(3) Climbing Space.

The climbing space through network-powered broadband communications wires and cables shall complywith the requirements of 225.14(

D) .


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(

4) Clearance.

Lead-in or overhead (aerial)-drop network-powered broadband communications cables from a pole orother support, including the point of initial attachment to a building or structure, shall be kept away fromelectric light, power, Class 1, or non–power-limited fire alarm circuit conductors so as to avoid thepossibility of accidental contact.

Exception: Where proximity to electric light, power, Class 1, or non–power-limited fire alarm circuitconductors cannot be avoided, the installation shall provide clearances of not less than 300 mm (12 in.)from electric light, power, Class 1, or non–power-limited fire alarm circuit conductors. The clearancerequirement shall apply to all points along the drop, and it shall increase to 1.02 m (40 in.) at the pole.

(B) Above Roofs.

Network-powered broadband communications cables shall have a vertical clearance of not less than 2.5 m(8 ft) from all points of roofs above which they pass.

Exception No. 1: Network-powered broadband communications cables shall not be required to have avertical clearance of 2.5 m (8 ft) above auxillary buildings such as garages and the like.

Exception No. 2:

A

reduction in clearance above only the overhanging portion of the roof to not less than 450 mm (18 in.

)

shall be permitted if (1) not more than 1.2 m (4 ft) of the broadband communications drop cables passabove the roof overhang, and (2) they are terminated at a through-the-roof raceway or support.


(C) Clearance from Ground.

Overhead (aerial) spans of network-powered broadband communications cables shall conform to not lessthan the following:

(1) 2.9 m (91 ⁄2 ft) — above finished grade, sidewalks, or from any platform or projection from whichthey might be reached and accessible to pedestrians only

(2) 3.5 m (111 ⁄2 ft) — over residential property and driveways, and those commercial areas not subjectto truck traffic

(3) 4.7 m (151 ⁄2 ft) — over public streets, alleys, roads, parking areas subject to truck traffic, drivewayson other than residential property, and other land traversed by vehicles such as cultivated, grazing,forest, and orchard

Informational Note: These clearances have been specifically chosen to correlate with ANSI/IEEEC2-2012, National Electrical Safety Code , Table 232-1, which provides for clearances of wires,conductors, and cables above ground and roadways, rather than using the clearances referencedin 225.18 . Because Article 805 and Article 820 have had no required clearances, thecommunications industry has used the clearances from the NESC for their installed cable plant.

(D B ) Over Pools.

Clearance of network-powered broadband communications cable in any direction from the water level,edge of pool, base of diving platform, or anchored raft shall comply with those clearances in 680.9.

(E C ) Final Spans.

Final spans of network-powered broadband communications cables without an outer jacket shall bepermitted to be attached to the building, but they shall be kept not less than 900 mm (3 ft) from windowsthat are designed to be opened, doors, porches, balconies, ladders, stairs, fire escapes, or similarlocations.

Exception: Conductors run above the top level of a window shall be permitted to be less than the 900-mm(3-ft) requirement above.

Overhead (aerial) network-powered broadband communications cables shall not be installed beneathopenings through which materials might be moved, such as openings in farm and commercial buildings,and shall not be installed where they obstruct entrance to these building openings.


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(

F) Between Buildings.

Network-powered broadband communications cables extending between buildings or structures, and alsothe supports or attachment fixtures, shall be identified as suitable for outdoor aerial applications and shallhave sufficient strength to withstand the loads to which they may be subjected.

Exception: Where a network-powered broadband communications cable does not have sufficientstrength to be self-supporting, it shall be attached to a supporting messenger cable that, together withthe attachment fixtures or supports, shall be acceptable for the purpose and shall have sufficientstrength to withstand the loads to which they may be subjected.

(G) D) On Buildings.

Where attached to buildings, network-powered broadband communications cables shall be securelyfastened in such a manner that they are separated from other conductors in accordance with 830.44(G)(1)through (G)(4 3 ).


The network-powered broadband communications cable shall have a separation of at least 100 mm (4 in.)from electric light, power, Class 1, or non–power-limited fire alarm circuit conductors not in raceway orcable, or be permanently separated from conductors of the other system by a continuous and firmly fixednonconductor in addition to the insulation on the wires.


Network-powered broadband communications cables shall be installed so that there will be no unnecessaryinterference in the maintenance of the separate systems. In no case shall the conductors, cables,messenger strand, or equipment of one system cause abrasion to the conductors, cables, messengerstrand, or equipment of any other system.

(3)

Lightning Conductors.

Where practicable, a separation of at least 1.8 m (6 ft) shall be maintained between any network-poweredbroadband communications cable and lightning conductors.

Informational Note: Specific separation distances may be calculated from the sideflash formula found inNFPA 780-2017, Standard for the Installation of Lightning

Protection

Systems, Section 4.6.

(4) Protection from Damage.

Network-powered broadband communications cables attached to buildings or structures and located within2.5 m (8 ft) of finished grade shall be protected by enclosures, raceways, or other approved means.

Exception: A low-power network-powered broadband communications circuit that is equipped with alisted fault protection device, appropriate to the network-powered broadband communications cableused, and located on the network side of the network-powered broadband communications cable shallnot be required to be additionally protected by enclosures, raceways, or other approved means.


With the intent of FR 7512 and proposed changes listed within PC-1575 and PC-1597, the text indicated can be deleted as is it will be redundant with the general requirements listed within Article 800.44 and the newly created Article 800.53.



Public Comment No. 1575-NFPA 70-2018 [Section No. 800.44]Linked action with acceptance ofPC-1575




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(A) Underground Systems with Electric Light and Power, Class 1, or Non–Power-Limited Fire AlarmCircuit Conductors.

Underground network-powered broadband communications cables in a duct, pedestal, handholeenclosure, or manhole that contains electric light, power conductors, non–power-limited fire alarm circuitconductors, or Class 1 circuits shall be in a section permanently separated from such conductors by meansof a suitable barrier.


With the intent of FR 7512, the acceptance of PC-1609 creates Article 800.47, which allows this text within Article 805, 820, 830 to be removed.




Linked action with acceptance onPC-1609

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Metal conduit containing network-powered broadband communications entrance cable shall be connectedby a bonding conductor or grounding electrode conductor to a grounding electrode or, where present, thebuilding grounding electrode system in accordance with 830.100(B).









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Metal conduit containing network-powered broadband communications entrance cable shall be connectedby a bonding conductor or grounding electrode conductor to the building grounding electrode system inaccordance with 830.100(B) .



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Metal conduit containing network-powered broadband communications entrance cable shall be connectedby a bonding conductor or grounding electrode conductor to the building grounding electrode system inaccordance with 830.100(B).






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830.100 Cable, Network Interface Unit, and Primary Protector Bonding and Grounding.

Network interface units containing protectors, NIUs with metallic enclosures, primary protectors, and themetallic members of the network-powered broadband communications cable that are intended to bebonded or grounded shall be connected as specified in 830 800 .100 (A) through 830 . 100(D).


(1) Insulation.


(2) Material.


(3) Size.

The bonding conductor or grounding electrode conductor shall not be smaller than 14 AWG and shall havea current-carrying capacity not less than that of the grounded metallic member(s) and protectedconductor(s) of the network-powered broadband communications cable. The bonding conductor orgrounding electrode conductor shall not be required to exceed 6 AWG.

(4) Length.



Exception: In one- and two-family dwellings where it is not practicable to achieve an overall maximumbonding conductor or grounding electrode conductor length of 6.0 m (20 ft), a separate communicationsground rod meeting the minimum dimensional criteria of 830.100(B)(3)(2) shall be driven, and thegrounding electrode conductor shall be connected to the communications ground rod in accordance with830.100(C) . The communications ground rod shall be bonded to the power grounding electrode systemin accordance with 830.100(D) .





(B) Electrode.

The bonding conductor or grounding electrode conductor shall be connected in accordance with830.100(B)(1) , (B)(2), or (B)(3).



Informational Note: See Informational Note Figure 805.100(B)(1) for an illustration of the applicationof the bonding conductor in buildings and structures equipped with an intersystem bondingtermination.


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Informational Note: See Informational Note Informational Note Figure 805.100(B)(2) for anillustration of the application of the bonding conductor in buildings and structures not equipped withan intersystem bonding termination or terminating block providing access to the building groundingelectrode system.

For purposes of this section, the mobile home service equipment or the mobile home disconnectingmeans, as described in 830.93 , shall be considered accessible.




(2) If the building or structure served has no intersystem bonding termination or has no groundingmeans, as described in 830.100(B)(2) or (B)(3)(1), to any one of the individual grounding electrodesdescribed in 250.52(A)(7) and (A)(8), or to a ground rod or pipe not less than 1.5 m (5 ft) in length

and 12.7 mm ( 1 ⁄ 2 in.) in diameter, driven, where practicable, into permanently damp earth andseparated from lightning conductors as covered in 805.53 and at least 1.8 m (6 ft) from electrodesof other systems. Steam, hot water pipes, or lightning-protection system conductors shall not beemployed as grounding electrodes for protectors, NIUs with integral protection, grounded metalmembers, NIUs with metallic enclosures, and other equipment.




A bonding jumper not smaller than 6 AWG copper or equivalent shall be connected between the network-powered broadband communications system grounding electrode and the power grounding electrodesystem at the building or structure served where separate electrodes are used.


Informational Note No. 1: See 250.60 for use of a connection to a lightning protection system.



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Informational Note: See Informational Note Figure 805

.

100(B)(1) for an illustration of the application of the bonding conductor in buildings and structures equippedwith an intersystem bonding termination.


This informational note is no longer necessary if companion PC 175 and PC 176 are accepted to relocate grounding and bonding illustrations to 800.100(B)(1) [new] and 800.100(B)(2) [new].







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Informational Note: See Informational Note Informational Note Figure 805 . 100(B)(2) for anillustration of the application of the bonding conductor in buildings and structures not equipped withan intersystem bonding termination or terminating block providing access to the building groundingelectrode system.

For purposes of this section, the mobile home service equipment or the mobile home disconnecting means,as described in 830.93, shall be considered accessible.


This informational note is no longer required if PC 175 and PC 176 are accepted to relocate Informational Note Figure 805.100(B)(2) to 800.100(B)(2) [new].







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(A) Grounding.

Grounding shall comply with 830.106(A)(1) or (A)(2).

(1) Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall ofthe mobile home it serves, the network-powered broadband communications cable shield, network-powered broadband communications cable metallic members not used for communications orpowering, network interface unit, and primary protector grounding terminal shall be connected to agrounding electrode conductor or grounding electrode in accordance with 830.100(B)(3) .

(2) Where there is no mobile home disconnecting means grounded in accordance with 250.32 andlocated within 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the network-poweredbroadband communications cable shield, network-powered broadband communications cablemetallic members not used for communications or powering, network interface unit, and primaryprotector grounding terminal shall be connected to a grounding electrode in accordance with830.100(B)(3) .

(B) Bonding.

The network-powered broadband communications cable grounding terminal, network interface unitgrounding terminal, if present, and primary protector grounding terminal shall be bonded together with acopper bonding conductor not smaller than 12 AWG. The network-powered broadband communicationscable grounding terminal, network interface unit grounding terminal, primary protector grounding terminal,or the grounding electrode shall be bonded to the metal frame or available grounding terminal of the mobilehome with a copper bonding conductor not smaller than 12 AWG under any of the following conditions:








Linked action with the acceptance ofPC-1653

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Low-power network-powered broadband communications cables shall be permitted to be installed inplenum listed communications raceways , riser communications raceways, and general-purposecommunications raceways, selected in accordance with Table 805 800 .154(b) , listed in accordance with805.182 , and installed in accordance with 805.113 and 362.24 through 362.56 , where the requirementsapplicable to electrical nonmetallic tubing apply. a) .


Listed plenum communications raceways , listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805 800 .154(b a ) shall be permittedto be installed as innerducts in any type of listed raceway permitted in Chapter 3.


Raceway fill for network-powered broadband communications cables shall comply with either830.100(B)(1) or (B)(2).






Low-power network-powered broadband communications cables shall be permitted to be installed inplenum listed cable routing assemblies , riser cable routing assemblies, and general-purpose cablerouting assemblies selected in accordance with Table 805 800 .154(c) , listed in accordance with805.182 , and installed in accordance with 805.110(C) and 805.113 . b) .

(D) Cable Trays.









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Low- and medium- power network-powered broadband communications cables shall be permitted to beinstalled in plenum listed communications raceways , riser communications raceways, and general-purpose communications raceways, selected in accordance with Table 805.154(b) , listed in accordancewith 805.182 , and installed in accordance with 805.113 and 362.24 through 362.56 , where therequirements applicable to electrical nonmetallic tubing apply. that comply with 800.110(A).


Listed plenum communications raceways , listed riser communications raceways, and listed general-purpose communications raceways selected in accordance with Table 805.154(b that comply with800.110(B ) shall be permitted to be installed as innerducts innerduct in any type of listed racewaypermitted in Chapter 3 Chapter 3 .


Raceway fill for network-powered broadband communications cables shall comply with either830.100 110 (B)(1) or (B)(2).






Low-power network-powered broadband communications cables shall be permitted to be installed inplenum listed cable routing assemblies , riser cable routing assemblies, and general-purpose cablerouting assemblies selected in accordance with Table 805.154(c) , listed in accordance with 805.182 , andinstalled in accordance with 805. that comply with 800. 110(C) and 805 . 113.

(D) Cable Trays.



With the intent of FR 7512, acceptance of PC-1663 will allow the removal of redundant content indicated. Also corrects reference in 830.110(B)





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Installation of network-powered broadband communications cables shall comply with 830.113(A) through(I). Installation of raceways and cable routing assemblies shall comply with 830.110 .

(A) Listing.

Network-powered broadband communications cables installed in buildings shall be listed.



(1) Up to 1.22 m (4 ft) of Type BLP

(2) Types BLP, BMR, BLR, BM, BL, and BLX installed in raceways that are installed in compliance with300.22(B)




(1) Type BLP

(2) Type BLP installed in plenum communications raceways

(3) Type BLP installed in plenum cable routing assemblies

(4) Type BLP supported by open metal cable tray systems

(5) Types BLP, BMR, BLR, BM, BL, and BLX installed in raceways that are installed in compliance with300.22(C)

(6) Types BLP, BMR, BLR, BM, BL, and BLX supported by solid-bottom metal cable trays with solid metalcovers in other spaces used for environmental air (plenums) as described in 300.22(C)

(7) Types BLP, BLR, BM, BL, and BLX installed in plenum communications raceways, risercommunications raceways, or general-purpose communications raceways supported by solid bottommetal cable trays with solid metal covers in other spaces used for environmental air (plenums) asdescribed in 300.22(C)



The following cables shall be permitted in vertical runs penetrating one or more floors and in vertical runs ina shaft:

(1) Types BLP, BMR, and BLR

(2) Types BLP and BLR installed in the following:







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(E) Risers — Cables and Innerducts in Cables in Metal Raceways.

The following cables and innerducts shall be permitted in a metal raceway in a riser with firestops at eachfloor:




















(1) Types BLP, BMR, BLR, BM, BL, and BLX less than 10 mm (3⁄8 in.) in diameter









(H) Cable Trays.








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(I) Other Building Locations.

The following cables shall be permitted to be installed in building locations other than those covered in830.113(B) through (H):


(2) Types BLP, BMR, BLR, BM, BL, and BLX installed in raceways recognized in Chapter 3








(10) Type BLX less than 10 mm (3⁄8 in.) in diameter in one- and two-family dwellings

(11) Types BMU and BLU entering the building from outside and run in rigid metal conduit (RMC) orintermediate metal conduit (IMC) where the conduit is connected by a bonding conductor or groundingelectrode conductor in accordance with 830.100(B)

Informational Note: This provision limits the length of Type BLX cable to 15 m (50 ft), while830.90(B) requires that the primary protector, or NIU with integral protection, be located as closeas practicable to the point at which the cable enters the building. Therefore, in installationsrequiring a primary protector, or NIU with integral protection, Type BLX cable may not bepermitted to extend 15 m (50 ft) into the building if it is practicable to place the primary protectorcloser than 15 m (50 ft) to the entrance point.

(12) A maximum length of 15 m (50 ft), within the building, of Type BLX cable entering the building fromoutside and terminating at an NIU or a primary protection location


As the intent of FR 7512 and related FR was to improve the quality and usage of Ch 8 and its related articles, these are changes that remove references and text not germane to the specific installation of network-powered cables as intended by the content of 830.113

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830.154 Applications of Network-Powered Broadband Communications System Cables.


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Permitted and nonpermitted applications of listed network-powered broadband communications systemcables shall be as indicated in Table 830.154(a). The permitted applications shall be subject to theinstallation requirements of 830.40, 830.110, and 830.113. The substitutions for network-poweredbroadband system cables listed in Table 830.154(b) shall be permitted.

Table 830.154(a) Applications of Listed Network-Powered Broadband Cables in Buildings

Applications

Listed Network-Powered Broadband Cable Types


Inducts specificallyfabricated forenvironmental air asdescribed in300.22(B)

In fabricated ducts asdescribed in300.22(B)

Y* N N N N N N

In metal raceway thatcomplies with300.22(B)

Y* Y* Y* Y* Y* Y* N

In other spaces usedfor environmental air(plenums) asdescribed in300.22(C)

In other spaces usedfor environmental airas described in300.22(C)

Y* N N N N N N

In metal raceway thatcomplies with300.22(C)

Y* Y* Y* Y* Y* Y* N


Y* N N N N N N


Y* N N N N N N

Supported by openmetal cable trays

Y* N N N N N N

Supported by solid-bottom metal cabletrays with solid metalcovers

Y* Y* Y* Y* Y* Y* N

In risers

In vertical runs Y* Y* N Y* N N N




Y* Y* N N N N N


Y* Y* N N N N N


Y* Y* N N N N N


Y* Y* N N N N N


Y* Y* Y* Y* Y* Y* N

Within buildings inother than air-handling spaces andrisers



Y* Y* Y* Y* Y* Y* N

Supported by cabletrays

Y* Y* Y* Y* Y* N N

In rigid metal conduit(RMC) andintermediate metalconduit (IMC)

Y* Y* Y* Y* Y* Y* Y*


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Applications

Listed Network-Powered Broadband Cable Types



Y* Y* Y* Y* Y* Y* N


Y* Y* Y* N N N N


Y* Y* Y* N N N N


Y* Y* Y* N N N N


Y* Y* Y* N N N N


Y* Y* Y* N N N N

In general-purposecable routingassemblies

Y* Y* Y* N N N N


Informational Note No. 1: Part V of Article 830 covers installation methods within buildings. This tablecovers the applications of listed network-powered broadband communications cables in buildings. Thedefinition of Point of Entrance is in 830 800 .2.

Informational Note No. 2: For information on the restrictions to the installation of network-poweredbroadband communications cables in ducts specifically fabricated for environmental air, see 830.113(B).



BM BMR

BLP CMP, CL3P



BLX CMP, CMR, CM, CMG, CMX, CL3P, CL3R, CL3, CL3X, BMR, BM, BLP, BRP BLR , BL


1) With FR 7512, the definition for "point of entrance" is locate in Art 800.2. 2) In Table 830.154(b), BRP is not a defined cable type. As BLR is shown as an approved substitution for BLX, this corrects and error that has been present since at least the NEC 2008.

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(1) Type BMR.


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in accordance with 800.179(B .


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(2) Type BM.

Type BM cables shall be listed

as being suitable for general-purpose use, with the exception of risers and plenums, and shall also be

listed

as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do not spreadfire to the top of the tray in the UL Flame Exposure, Vertical Tray Flame Test in ANSI/UL 1685-2010,Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables . The smoke measurements in the test method are not applicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not to exceed1.5 m (4 ft 11 in.) when performing the CSA Vertical Flame Test — Cables in Cable Trays, as described inCSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables .


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(3) Type BMU.



Network-powered broadband communications low-power cables shall be factory-assembled cablesconsisting of a jacketed coaxial cable, a jacketed combination of coaxial cable and multiple individualconductors, or a jacketed combination of an optical fiber cable and multiple individual conductors. Theinsulation for the individual conductors shall be rated for 300 volts minimum. Cables intended for outdooruse shall be listed as suitable for the application. Cables shall be marked in accordance with 310.8 .

(1) Type BLP.

Type BLP cables shall be listed

as being suitable for use in ducts, plenums, and other spaces used for environmental air and shall also belisted as having adequate fire-resistant and low-smoke producing characteristics. Informational Note: Onemethod of defining a cable that is low-smoke producing cable and fire-resistant cable is that the cableexhibits a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and amaximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA 262-2015,Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces

in accordance with 800.179.(A) .

(2) Type BLR.

Type BLR cables shall be listed

as being suitable for use in a vertical run in a shaft, or from floor to floor, and shall also be listed ashaving fire-resistant characteristics capable of preventing the carrying of fire from floor tofloor. Informational Note: One method of defining fire-resistant characteristics capable of preventing thecarrying of fire from floor to floor is that the cables pass the requirements of ANSI/UL 1666-2011,Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cable Installed Vertically inShafts


(3) Type BL.

Type BL cables shall be listed

as being suitable for general-purpose use, with the exception of risers and plenums, and shall also belisted as being resistant to the spread of fire.

Informational Note: One method of defining resistant to the spread of fire is that the cables do notspread fire to the top of the tray in the UL Flame Exposure, Vertical Tray Flame Test inANSI/UL 1685-2010, Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-ReleaseTest for Electrical and Optical-Fiber Cables . The smoke measurements in the test method are notapplicable.

Another method of defining resistant to the spread of fire is for the damage (char length) not toexceed 1.5 m (4 ft 11 in.) when performing the CSA Vertical Flame Test — Cables in Cable Trays,as described in CSA C22.2 No. 0.3-09, Test Methods for Electrical Wires and Cables .


I

(4) Type BLX.

Type BLX limited-use cables shall be listed

as being suitable for use outside, for use in dwellings, and for use in raceways and shall also be listed asbeing resistant to flame spread.

Informational Note: One method of determining that cable is resistant to flame spread is by testingthe cable to VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, Reference Standard forElectrical Wires, Cables and Flexible Cords .

in accordance with 800.179(D).

.

(5) Type BLU.



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(1) Type BMR.




(2) Type BM.

Type BM cables shall be listed as being suitable for general-purpose use, with the exception of risers andplenums, and shall also be listed as being resistant to the spread of fire.



ain accordance with 800.179(C).

(3) Type BMU.



Network-powered broadband communications low-power cables shall be factory-assembled cablesconsisting of a jacketed coaxial cable, a jacketed combination of coaxial cable and multiple individualconductors, or a jacketed combination of an optical fiber cable and multiple individual conductors. Theinsulation for the individual conductors shall be rated for 300 volts minimum. Cables intended for outdooruse shall be listed as suitable for the application. Cables shall be marked in accordance with 310.8.


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(1) Type BLP.

Type BLP cables shall be listed as being suitable for use in ducts, plenums, and other spaces used forenvironmental air and shall also be listed as having adequate fire-resistant and low-smoke producingcharacteristics.

Informational Note: One method of defining a cable that is low-smoke producing cable and fire-resistantcable is that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical densityof 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordancewith NFPA 262-2015, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Usein Air-Handling Spaces


(2) Type BLR.

Type BLR cables shall be listed as being suitable for use in a vertical run in a shaft, or from floor to floor,and shall also be listed as having fire-resistant characteristics capable of preventing the carrying of firefrom floor to floor.



(3) Type BL.

Type BL cables shall be listed as being suitable for general-purpose use, with the exception of risers andplenums, and shall also be listed as being resistant to the spread of fire.




(4) Type BLX.

Type BLX limited-use cables shall be listed as in accordance with 800.179(D) and being suitable for useoutside, for use in dwellings, and for use in raceways and shall also be listed as being resistant to flamespread .

Informational Note: One method of determining that cable is resistant to flame spread is by testingthe cable to VW-1 (vertical-wire) flame test in ANSI/UL 1581-2017, Reference Standard for ElectricalWires, Cables and Flexible Cords.

(5) Type BLU.








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Public Comment No. 1835-NFPA 70-2018 [ Definition: Communications Service

Provider. ]





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Public Comment No. 99-NFPA 70-2018 [ Definition: Communications Service Provider. ]




This PC coordinates with FR 7512 which moves the definition of "Communications Service Provider" to the new general article 800.




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The definitions in Part I Part I of Article 100, 770.2 , 800.2, 805.2 , and 820.2 shall apply. The definitions inthis section shall apply only within Article 840.


Given the text structure of citing all applicable Articles with definitions, Art 800.2 needs to be included and this is the simple correction. (Unknown why other Articles are shown as "additions"). Regardless of the following, this needs to be performed

There is a larger issue, in that the in-text reference structure of 805.2, 820.2 and 830.2 differ in that they are "See Part I of Article 100. The definitions in this section shall apply only within Article 8XX". While 805.3, 820.3 and 830.3 all cite Article 800 (assuming acceptance of PC-1707, PC-1803, and PC-1817 respectively) as wholly applicable, there is an "order of operation" issue, in that does 840.2 apply prior to 840.3 or in the other articles, does the inclusion of only Part 1 or Article 1 serve as a modification and removes Art 800's definitions.

Part of the "more complete" solution is to remove "See Part I of Article 100" from 805.2, 820.2, 830.2 and 840.2", as it is already included within 800.2, but then it still leaves the philosophical to be answered. As this larger issue is not critical and if a solution for all the articles cannot be quickly determined, we have no problems addressing it in the NEC 2023.

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Circuits and equipment shall comply with 840.3(A) through (G D ). Only those sections of Chapters 1through 7 referenced in Article 840 shall apply to premises-powered broadband communications systems.

(A)


Premises-powered broadband communications circuits and equipment installed in a location that isclassified in accordance with 500.5 and 505.5 shall comply with the applicable requirements ofChapter 5.


The requirements of 300.22(A) , 770.3(B) , 805.3(B) , and 820.3(B) shall apply.





(E)

General requirements for communications systems. The general requirements for communicationssystems in Article 800 shall apply to prremises-powered broadband communications circuits unlessmodified by Article 840.









(F C ) Other Communications Systems.






(G D ) Electrical Classification of Data Circuits and Cables.



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Circuits and equipment shall comply with 840.3(A) through (G D ). Only those sections of Chapters 1through 7 referenced in Article 840 shall apply to premises-powered broadband communications systems.

(E)

(A)


Premises-powered broadband communications circuits and equipment installed in a location that isclassified in accordance with 500.5 and 505.5 shall comply with the applicable requirements ofChapter 5.


The requirements of 300.22(A) , 770.3(B) , 805.3(B) , and 820.3(B) shall apply.





General Requirements for Communications Systems.

Article 800 shall apply to communications circuits unless modified by Article 840.









(F C ) Other Communications Systems.






(G D ) Electrical Classification of Data Circuits and Cables.





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The requirements of 770.24, 805 and 800 .24, and 820.24 shall apply.


This material exists in Article 800.24, allowing the removal of other Article references.

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The requirements of 770.25, 805.25 , and 820 800 . 25 shall 25 shall apply.


From the result of FR 7512, Article 800.25 contains all applicable information, allowing references to be consolidated.

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The requirements of 770.26, 805 and 800 .26, and 820.26 shall apply.


This material exists in Article 800.26, allowing the removal of other Article references.

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Section 800 Section 805 .44 shall apply to overhead (aerial) communications wires and multipaircommunications cables.


The original reference to 800.44 is no longer valid as the new Article 800, and specifically 800.44, does not include clearance [old 840.44(A)(4)] and requirements for installation above roofs [old 840.44(B)].

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Public Comment No. 1843-NFPA 70-2018 [ Sections 840.45, 840.46 ]

Sections 840.45, 840.46


Section 800.44 shall apply to overhead (aerial) communications wires and multipair communications cables.


Section 820.44 shall apply to overhead (aerial) coaxial cables.


With acceptance of PC-1575, all of the material in the indicated articles will be located in 800.44. As there are no modifications in 840.45 and 840.46, this can be removed as it will be included by reference upon approval of PC-1836. Note that if PC-1586 and PC-1588 are accepted, current cited articles will need to be changed.




PC-1575 prior acceptance is required as proposed textuses result


PC-1836 prior acceptance is required as proposed textuses result


PC 1586 acceptance removes current cited article inthis PC


PC 1588 acceptance removes current cited article inthis PC

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I, Jeff Silveira, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this PublicComment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire norights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similar or derivative formis used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enter into this copyrightassignment.

By checking this box I affirm that I am Jeff Silveira, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature


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Underground wires and cables entering buildings shall comply with 800.47 and 840.47(A) through (C).


With the intent of FR 7512, PC-1609 creates a general article 800.47 for underground cabling, which needs to be included as a cited article, given that it is applicable to multiple parts of 840.47.




Acceptance of PC-1609 required prior tothis PC

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The requirements of 770.49 , 805.49 , and 820.49 shall apply, as applicable.


A) This material exists in Article 800.49 and needs to be deleted here. B) Removal of the reference to 770.49 should not be problematic, as the particular action being specified is the grounding of the actual metallic entrance conduit. This is further supported by the specific articles referenced are all for transmission media applicable to Class 2/Class 3 circuits.

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The requirements of 770.49, 805 and 800 .49 , and 820.49 shall apply, as applicable.


If 805.49 is deleted and replaced by 800.49 in the new general Article 800, the correct reference is 800.49.

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• FR 7512




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Grounding required for protection of the network terminal, conductive optical fiber cables, multipaircommunications cables, antenna lead-in conductors, and coaxial cables shall comply with 770.100,805 800 .100, or 810.21, or 820.100 , as applicable.


If PC-1633 is accepted, references in 840.100 can be further reduced.





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• FR 7512



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Grounding required for protection of the network terminal, conductive optical fiber cables, multipaircommunications cables, antenna lead-in conductors, and coaxial cables shall comply with 770.100,800.100, 805.100, 810.21, or 820.100, as applicable.


This section should also reference 800.100 [new] as it contains general requirements for grounding and bonding of communications systems.

Related Item

• FR 7512




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(A) Coaxial Cable Shield Grounding.

The shield of coaxial cable shall be grounded by one of the following:

(1) Any of the methods described in 820.100 or 820 800 .106

(2) A fixed connection to an equipment grounding conductor as described in 250.118

(3) Connection to the network terminal grounding terminal provided that the terminal is connected toground by one of the methods described in 820.100 or 820 800 .106, or to an equipment groundingconductor through a listed grounding device that will retain the ground connection if the networkterminal is unplugged


With acceptance of PC-1655, there will not be a 820.106 as that content will be located within 800.106




Acceptance of PC-1655 will necessitate theproposed change

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• FR 7512



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WhereIn some cases, DC power generated by the Network Terminal, a Network Terminal UPS, or inline power injector that

complies with 840.179(G) shall be permitted to extend short distances off premises to power remote communications

equipment (e.g. remote security cameras, IP phone extensions in detached buildings, reverse power feeding service

provider equipment, etc). Wher e circuits leave the building to power equipment remote to the building or outside

the exterior zone of protection defined by a 46 m (150 ft) radius rolling sphere, 805.100 and 805.106 shall apply

for communications wire and 820 . 100 and 820.106 shall apply for coaxial cable

.



This additional wording provides clarity for the reasons of the requirements and includes a reference to requirements for coaxial cable should this type of cable be used.

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• FR-7891




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Where circuits leave the building to power equipment remote to the building or outside the exterior zone ofprotection defined by a 46 m (150 ft) radius rolling sphere, 805 800 .100 and 805 800 .106 shall apply.



With the intent of FR 7512, PC-1633 and PC-1653 create 800.100 and 800.106 from existing text in Chapter 8. This comment corrects the reference.

Of note, acceptance of PC-1633 and PC-1653 provides for PC-1648 and PC-1654 which if accepted, modifies 805.100 to cite 800.100 as its sole requirement and removes 805.106 in its entirety.




Acceptance of PC-1633 allows proposedchange


Acceptance of PC-1653 allows proposedchange

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• FR 7512



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(A) Grounding.

As applicable, grounding of commu nication wire and cables, CATV Type coaxial cables , and networkterminal s shall comply with 800.106. Grounding of non-current-carrying metallic members of opticalfiber cables shall comply with 840.106(A)(1) and (A)(2).

(1)

Where there is no mobile home service equipment located within 9.0 m (30 ft) of the exterior wall of themobile home it serves, the non–current-carrying metallic members of optical fiber cables shall be connectedto a grounding electrode in accordance with 770.106(A)(1). The network terminal, if required to begrounded, shall be connected to a grounding electrode in accordance with 805.106(A)(1) . Premises CATVcircuits shall be grounded in accordance with 820.106(A)(1) , unless the network terminal is listed toprovide the grounding path for the shield of the coaxial cable. The grounding electrode shall be Thegrounding electrode shall be bonded in accordance with 770.106(B).

(2)

Where there is no mobile home disconnecting means grounded in accordance with 250.32 and locatedwithin 9.0 m (30 ft) of the exterior wall of the mobile home it serves, the non–current-carrying metallicmembers of optical fiber cables shall be connected to a grounding electrode in accordance with770.106(A)(2). The network terminal, if required to be grounded, shall be connected to a groundingelectrode in accordance with 805.106(A)(2) . Premises CATV circuits shall be grounded in accordancewith 820.106(A)(2) , unless the network terminal is listed to provide the grounding path for the shield of thecoaxial cable. The grounding electrode shall be bonded in accordance with 770.106(B).

(B) Bonding.

The network terminal grounding terminal or grounding electrode shall be connected to the metal frame oravailable grounding terminal of the mobile home with a copper conductor not smaller than 12 AWG underany of the following conditions:

(1)

Where there is no mobile home service equipment or disconnecting means as specified in 840.106(A) .

(2)

Where the mobile home is supplied by cord and plug.


With the intent of FR 7512, acceptance of PC-1654 will allow redundant content within 840.106 to be removed.




Linked action with the acceptance ofPC-1653

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• FR 7512



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Communications cables covered in 840.48 and those listed in accordance with 805.179, in addition tocarrying the communications circuit, shall also be permitted to carry circuits for powering communicationsequipment listed in accordance with 805.170. The power source shall be listed in accordance with840.170(G). Installation of the listed communications cables shall comply with 725.144 where 4-paircommunications cables or where 4-pair communications cables are substituted for Class 2 and Class 3cables in accordance with 725.154(A) shall comply with Table 725 .144.

Exception: Installing communications cables in compliance Where the rated current does not exceed0.3 amperes in any conductor 24 AWG and larger compliance with 725.144 shall not be required forlisted 4-pair communications cables where the rated current does not exceed 0.3 amperes in anyconductor 24 AWG or larger covered by Table 725.144 .

Informational Note: A typical communications cable for this application is a 4-pair cable sometimesreferred to as Category 5e (or higher) LAN cable or equivalent balanced twisted pair cable. Thesetypes of cables are often used to provide Ethernet- and Power over Ethernet (PoE)–type services. Alarge number of such powering cables bundled together can cause overheating of the wiring if notcontrolled as described in Table 725.144.


Section 840.160, as presently worded, implies that all communications cables shall be installed in compliance with 725.144. The UL “Fact Finding Report” does not support such a requirement as the UL analysis only evaluated a single cable type, a 4-pair LAN-type cable. The text should be modified to indicate that the requirements only applies to 4-pair LAN-type cable, and not communications cables in general.

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• FR-7892




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Communications cables listed in accordance with 805.179, in addition to carrying the communicationscircuit, shall also be permitted to carry circuits for powering communications equipment listed in accordancewith 805.170. The power source shall be listed in accordance with 840.170(G). Installation of the listedcommunications cables shall comply with 725.144 where communications cables are substituted forClass 2 and Class 3 cables in accordance with 725.154(A).

Exception: Installing communications cables in compliance with 725.144 shall not be required for listed4-pair communications cables where the rated current does not exceed 0.3 amperes in any conductor 24AWG or larger.



DELETING 4-pair: Article 840.160 applies to all listed communications cables, but the exception covers only listed “4-pair” communications cables. There is no data to show that cables with other than 4 pairs should not be exempt at low currents. This limitation of the exception seems to be inadvertent, but by excluding other than 4-pair communications cables from the exemption at low currents, 840.160 is excluding cables that have been used for legacy applications that need less than 300 mA per conductor, and need only one or two pairs ( e.g. ISDN, T1, VDSL).

DELETION OF THIRD SENTENCE IN THE INFORMATIONAL NOTE: The third sentence of the informational note “A large number of such powering cables…” is technically incorrect, and outside normal code wiring. The bundling of the cables themselves does not cause overheating – exceeding the ampacity allowed for that bundle size can exceed the temperature rating of the cables in the bundle. This sentence without the context and details in 725.144 is not accurate or complete ( methods of installation, types of cables, and power delivered all affect cable bundle heating) .

Related Item

• FR-7892


Submitter Full Name: Masood Shariff

Organization: Commscope

Affiliation: TIA

Street Address:

City:

State:

Zip:

Submittal Date: Thu Jul 05 15:27:28 EDT 2018

Committee: NEC-P16


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I, Masood Shariff, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am Masood Shariff, and I agree to be legally bound by the above Copyright Assignment and theterms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will,upon my submission of this form, have the same legal force and effect as a handwritten signature


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Communications cables covered in 840.48 and those listed in accordance with 805.179 , in addition tocarrying the communications circuit, shall also be permitted to carry circuits for powering communicationsequipment listed in accordance with 805.170. The power source shall be listed in accordance with840.170(G). Installation of the listed communications cables shall comply with 725.144 wherecommunications cables are substituted for Class 2 and Class 3 cables in accordance with 725.154(A).

Exception: Installing communications cables in compliance with 725.144 shall not be required for listed4-pair communications cables where the rated current does not exceed 0.3 amperes in any conductor 24AWG or larger.



The first revision change is a major technical change and suggests that power on communications cables is only permitted if Listed to 805.179. The code has always recognized and allowed this power to also exist on Unlisted entrance cables described in 840.48. This topology or need for entrance cables is necessary for several telecommunications technologies such as reverse powering for G.fast and VDSL, covered by article 840.160. Not providing this clarification of what is in fact allowed and always has been allowed, is very important while maintaining the intent of the change for 2020.

Related Item

• First Revision No. 7892-NFPA 70-2018


Submitter Full Name: James Wiese

Organization: ADTRAN inc

Street Address:

City:

State:

Zip:


Committee: NEC-P16


I, James Wiese, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am James Wiese, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, uponmy submission of this form, have the same legal force and effect as a handwritten signature


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Communications cables listed in accordance with 805.179, in addition to carrying the communicationscircuit, shall also be permitted to carry circuits for powering communications equipment listed in accordancewith 805.170. The power source shall be listed in accordance with 840.170(G). Installation of the listedcommunications cables shall comply with 725.144 where communications cables are substituted forClass 2 and Class 3 cables in accordance with 725.154(A).

Exception: Installing communications cables in compliance with 725.144 shall not be required for listed4-pair communications cables where the rated current of the power source does not exceed 0.3 amperesin any conductor 24 AWG or larger.



This Public Comment was developed by a task group convened by request of the NEC Correlating Committee to resolve the difference between the language of ‘nominal current’ in 725.144 and ‘rated current’ in 840.160. The members of the “Nominal vs. Rated Task Group” included Ernie Gallo, George Zimmerman, Stan Kaufman, Bill McCoy, Randy Ivans, Chad Jones, Christel Hunter, Jim Wiese, Jim Brunssen, Dan Ashton, Terry Coleman, John Fuller, Joel Goergen and Bill Szeto.

The addition of the text ‘rated current of the power source’ clarifies that it is the current rating of the power source that determines whether or not 725.144 must be consulted. The Task Group recommends these changes to align the text of 840.160 and 725.144.





Public Comment No. 765-NFPA 70-2018 [Section No. 725.144(B)]


Public Comment No. 769-NFPA 70-2018 [Definition: Nominal Current.]



Public Comment No. 765-NFPA 70-2018 [Section No. 725.144(B)]


Public Comment No. 769-NFPA 70-2018 [Definition: Nominal Current.]

Related Item

• FR 7892


Submitter Full Name: Ernest Gallo

Organization: Telcordia Technologies Ericss

Affiliation: Correlating Committee-appointed Nominal Vs Rated Task Group

Street Address:


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I, Ernest Gallo, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that Iacquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similar orderivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enter intothis copyright assignment.

By checking this box I affirm that I am Ernest Gallo, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, uponmy submission of this form, have the same legal force and effect as a handwritten signature


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Communications equipment shall be listed in accordance with 800 805 .170.


With the result of FR 7512, the appropriate reference is now 805.170.

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• FR 7512



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Communications equipment shall be listed in accordance with 800 805 .170.


There currently is no 800.170.

Related Item

• FR 7512




Affiliation: ATIS

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Cable routing assemblies and communications raceways shall be listed in accordance with 805 800 .182.


This PC coordinates with PC 65 moves the listing requirements for communications raceways, and cable routing assemblies to new general Article 800.




Related Item

• FR 7512





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Cable routing assemblies and communications raceways shall be listed in accordance with 805 800 .182.


With the intent of FR 7512, this is to correct a reference if PC-1697 is accepted. (PC-1697 creates Article 800.182 to contain this information as it is applicable across Chapter 8). Acceptance of PC-1697 allows for PC-1698 to delete 805.182.




Acceptance of PC-1697 allows for thischange.

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• FR 7512



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Public Comment No. 2115-NFPA 70-2018 [ Section No. 840.170(G) ]

(G) Power Source.

The power source for circuits intended to provide power over communications cables to remote equipmentshall be limited in accordance with Table 11(B) in Chapter 9 for voltage sources up to 60 V dc and be listedas specified in either of the following:

(1) A power source shall be listed as specified in 725.121(A)(1), (A)(2), (A)(3), or (A)(4). The powersources shall not have the output connections paralleled or otherwise interconnected unless listed forsuch interconnection.


Informational Note: One way to determine applicable requirements is to refer toANSI/UL 60950-1-2014, Standard for Safety of Information Technology Equipment-Safety — Part 1;or ANSI/UL 62368-1-2014, Audio/Video, Information and Communication Technology Equipment —Part 1: Safety Requirements. Typically, such circuits are used to interconnect equipment for thepurpose of exchanging information (data).

The direct-current limits in Table 11(B) in chapter 9 apply to continuous DC as well as DC that isdelivered in pulses, bursts, packets, or other intermittent method. If non-continuous, the effectivemaximum values of current and power that power source can deliver shall be used to determineconformance with Table 11(B) in chapter 9.


This clarification was originally provided in Public Input No. 3986-NFPA 70-2017. The rationale in the response, indicates that the concern and rationale for the PI was misunderstood. This clarification is not due to an electrical shock hazard concern, but rather a "cable fire issue". There are at least two manufacturers who are claiming that the values in Table 11b do not apply to power sources that use pulsed or packetized bursts of DC power on Class 2/3 and communications cables. Table 11b is for continuous DC and also has provisions in the notes for 10Hz to 200Hz pulsed DC. In one case the products frequency of the DC Bursts is in the 700Hz Range, so it outside the ranges covered in the Table and note.

To be clear this is not a shock issue and it may be perfectly safe to the touch. However, they are advertising wattages up to effectively 2400 watts on one pair of a LAN/Ethernet cable, with effectively 7+ amps at over 300V peak. Powering HVAC to refrigerators to lighting. But because the marketing claim is that there are no limits for Pulsed/packetized DC at 700 Hz, the values in Table 11b do not apply.

This clarification text is needed in sections 725.121, 840.170, and Table 11b. in order to clarify that technologies are not exempt from the values in Table 11b by using loopholes or mis-interpretation or naming their electrical outputs by some new name. One of these companies claims in public videos that they have deployments of this type in over 400 public locations including commercial buildings and sports stadiums.

Related Item

• Public Input No. 3986-NFPA70-2017




Submitter Full Name: James Wiese

Organization: ADTRAN inc

Street Address:

City:

State:

Zip:


Committee: NEC-P16


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I, James Wiese, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright inthis Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend thatI acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Comment in this or another similaror derivative form is used. I hereby warrant that I am the author of this Public Comment and that I have full power and authority to enterinto this copyright assignment.

By checking this box I affirm that I am James Wiese, and I agree to be legally bound by the above Copyright Assignment and the termsand conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, uponmy submission of this form, have the same legal force and effect as a handwritten signature


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Related Item

• FR 7512



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Public Comment No. 1663-NFPA 70-2018 [ New Part after V. ]

800.110 Communications Raceways , and Cable Routing Assemblies .

Installation of communications raceways shall comply with 800.110(A) and (B). Installation of cable routingassemblies shall comply with 800.110(C).

(A) Communications Raceways.

Plenum communications raceways, riser communications raceways, and general-purpose communicationsraceways shall be selected in accordance with Table 800.154(a), listed in accordance with 800.182, andinstalled in accordance with 800.113 and 362.24 through 362.56, where the requirements applicable toelectrical nonmetallic tubing (ENT) apply.

(B) Innerduct.

Listed plenum communications raceways, listed riser communications raceways, and listed general-purposecommunications raceways selected in accordance with Table 800.154(a) shall be permitted to be installedas innerduct in any type of listed raceway permitted in Chapter 3.


Plenum cable routing assemblies, riser cable routing assemblies, and general-purpose cable routingassemblies shall be selected in accordance with Table 800.154(b), listed in accordance with 800.182, andinstalled in accordance with 800.110(C)(1) and (C)(2) and 800.113.

(1) Horizontal Support. Cable routing assemblies shall be supported where run horizontally at intervals notto exceed 900 mm (3 ft) and at each end or joint, unless listed for other support intervals. In no case shallthe distance between supports exceed 3 m (10 ft). Cable routing assemblies shall be permitted to besupported by ladder cable trays.

(2) Vertical Support. Vertical runs of cable routing assemblies shall be supported at intervals not exceeding1.2 m (4 ft), unless listed for other support intervals, and shall not have more than one joint betweensupports. Cable routing assemblies shall be permitted to be supported by ladder cable trays.








Public Comment No. 1673-NFPA 70-2018 [New Part after V.]

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• FR 7512



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800.113 Installation of Communications Raceways, and Cable Routing Assemblies.

Installation of communications raceways, and cable routing assemblies shall comply with 800.113(A)through (L). Installation of raceways and cable routing assemblies shall also comply with 800.110.

(A) Listing.

Communications raceways and cable routing assemblies installed in buildings shall be listed.


Communications raceways and cabling routing assemblies shall not be installed in ducts specificallyfabricated for environmental air.


Plenum communications raceways and plenum cabling routing assemblies shall be permitted in otherspaces used for environmental air as described in 300.22(C).

(D) Risers - Cables, Raceways, and Cable Routing Assemblies in Vertical Runs.

Plenum and riser communications raceways and plenum and riser cabling routing assemblies shall bepermitted in vertical runs penetrating one or more floor and vertical runs in a shaft.

(E) Risers - Cables and lnnerducts in Metal Raceways.

Plenum, riser, and general-purpose communication raceways (innerducts) shall be permitted in metalraceways in a riser having firestops at each floor.


(F) Risers - Cables, Raceways, and Cable Routing Assemblies in Fireproof Shafts.

Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cablerouting assemblies shall be permitted to be installed in fireproof riser shafts having firestops at each floor.


(G) Risers - One- and Two-Family Dwellings,

Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cablerouting assemblies shall be permitted in one- and two-family dwellings.

(H) Cable Trays.

Plenum, riser, and general-purpose communication raceways shall be permitted to be supported by cabletrays:


Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cablerouting assemblies shall be permitted to be installed in distributing frames and cross-connect arrays.


Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cablerouting assemblies shall be permitted to be installed in building locations other than the locations covered in800.113(B) through (I).


Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cablerouting assemblies shall be permitted to be installed in multifamily dwellings in locations other than thelocations covered in 800.113(B) through (G).

(L) One- and Two -Family Dwellings.

Plenum, riser, and general-purpose communication raceways and plenum, riser, and general-purpose cablerouting assemblies shall be permitted to be installed in one- and two-family dwellings in locations other thanthe locations covered in 800.113(B) through (F).


With the intent of FR 7512, there is opportunity to reduce redundant content. Analysis of Articles 805, 820, 830 and


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840 showed that certain types of information were common, but placed in different locations or intertwined with Article specific information. PC-1663, PC-1673, PC-1686, PC-1691, and PC-1697 create the generic Articles which allow the redundant content across Ch 8 to be removed.



Public Comment No. 1663-NFPA 70-2018 [New Part afterV.]

Content of this PC requires PC-1663 to beaccepted


Related Item

• FR 7512



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80 0 .154 Applications of Listed Communications Raceways and Listed Cable RoutingAssemblies.

Permitted and nonpermitted applications of listed communications raceways and listed cable routingassemblies shall be in accordance with one of the following:

( 1 ) L isted communications raceways as indicated in Table 80 0 .154( a )

( 2 ) Listed cable routing assemblies as indicated in Table 80 0 .154( b )

The permitted applications shall be subject to the installation requirements of 800.110 and 80 0 .113.

Table 80 0 .154( a ) Applications of Listed Communications Raceways in Buildings

Applications

Listed Communications Raceway Ty

Plenum Riser GenPur

In ducts specificallyfabricated forenvironmental air asdescribed in300.22(B)

In fabricated ducts N N


N N

In other spacesused forenvironmental air(plenums) asdescribed in300.22(C)


Y* N


Y* Y* Y


N N


Y* N


Y* Y* Y

In risers In vertical runs Y* Y*

In metal raceways Y* Y* Y

In fireproof shafts Y* Y* Y


N N

In riser cable routing assemblies N N

In one- and two-family dwellings Y* Y* Y


General Y* Y* Y


In multifamily dwellings Y* Y* Y

In nonconcealed spaces Y* Y* Y

Supported by cable trays Y* Y* Y


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N N


Y* Y* Y


Y* Y* Y


N N



N N

Note: An "N" in the table indicates that the communications raceway type shall not be permitted tobe installed in the application. A "Y*" indicates that the communications raceway type shall bepermitted to be installed in the application, subject to the limitations described in 800.110 and805.113.

Table 80 0 .154( b ) Applications of Listed Cable Routing Assemblies in Buildings

Applications


Plenum Riser GenPur



In metal raceway that complieswith 300.22(6)

N N



Y* N


N N


N N

Support ed by open metal cabletrays

Y* N


N N


In metal raceways N N



N N


N N


Within buildings inother than air-handling spaces and

General Y* Y* Y



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risers In multifamily dwellings Y* Y* Y


Support ed by cable trays Y* Y* Y


N N


Y* Y* Y


N N


N N


N N

In general -purposecommunications raceways

N N

Note: An "N" in the table indicates that the cable routing assembly type shall not be permitted to beinstalled in the application. A "Y*" indicates that the cable routing assembly type shall be permittedto be installed in the application subject to the limitations described in 805 .113.

80 0 .154 Applications of Listed Communications Raceways and Listed Cable Routing Assemblies.

Permitted and nonpermitted applications of listed communications raceways and listed cablerouting assemblies shall be in accordance with one of the following:

( 1 ) L isted communications raceways as indicated in Table 80 0 .154( a )

( 2 ) Listed cable routing assemblies as indicated in Table 80 0 .154( b )

The permitted applications shall be subject to the installation requirements of 800.110 and80 0 .113.

Table 80 0 .154( a ) Applications of Listed Communications Raceways in Buildings

Applications


Plenum Riser GenPur




N N



Y* N


Y* Y* Y


N N


Y* N


Y* Y* Y


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In metal raceways Y* Y* Y



N N




General Y* Y* Y




Supported by cable trays Y* Y* Y


N N


Y* Y* Y


Y* Y* Y


N N



N N

Note: An "N" in the table indicates that the communications raceway type shall not be permitted tobe installed in the application. A "Y*" indicates that the communications raceway type shall bepermitted to be installed in the application, subject to the limitations described in 800.110 and805.113.

Table 80 0 .154( b ) Applications of Listed Cable Routing Assemblies in Buildings

Applications


Plenum Riser GenPur



In metal raceway that complieswith 300.22(6)

N N



Y* N


N N


N N

Support ed by open metal cabletrays

Y* N


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N N


In metal raceways N N



N N


N N



General Y* Y* Y




Support ed by cable trays Y* Y* Y


N N


Y* Y* Y


N N


N N


N N

In general -purposecommunications raceways

N N

Note: An "N" in the table indicates that the cable routing assembly type shall not be permitted to beinstalled in the application. A "Y*" indicates that the cable routing assembly type shall be permittedto be installed in the application subject to the limitations described in 805 .113.

.



Related Item

• FR 7512



Organization: Bicsi

Street Address:


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City:

State:

Zip:


Committee: NEC-P16





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Public Comment No. 840-NFPA 70-2018 [ Section No. 110.12(B) ]

(B) Integrity of Electrical Equipment and Connections.

Internal parts of electrical equipment, including busbars, wiring terminals, insulators, and othersurfaces, shall not be damaged or contaminated by foreign materials such as paint, plaster,cleaners, abrasives, or corrosive residues. There shall be no damaged parts that may adverselyaffect safe operation or mechanical strength of the equipment such as parts that are broken; bent;cut; or deteriorated by corrosion, chemical action, or overheating.



CN_135.pdf 70_CN 135 ✓


NOTE: This Public Comment appeared as CC Note No.135 in the First Draft Report on First Revision No. 8484.

It was the action of the Correlating Committee that this first revision be referred to Code-Making Panel 3 and Panel 16 for correlation with this first revision.


Related Item

• FR 8484




Street Address:

City:

State:

Zip:


Committee: NEC-P03


I, CC on NEC-AAC, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights incopyright in this Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). Iunderstand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which thisPublic Comment in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Commentand that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am CC on NEC-AAC, and I agree to be legally bound by the above Copyright Assignmentand the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronicsignature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature


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