first draft meeting agenda - nfpa€¦ · 2995 sidco drive nashville, tn 37204 se 1/12/2000 eps-aaa...

National Fire Protection Association

1 Batterymarch Park, Quincy, MA 02169-7471

Phone: 617-770-3000 • Fax: 617-770-0700 • www.nfpa.org

FIRST DRAFT MEETING AGENDA

NFPA TECHNICAL COMMITTEE ON Emergency Power Supplies (EPS-AAA)

First Draft Meeting for 2019 Editions of NFPA 110 and 111

September 7, 2016

Teleconference / Web Meeting

Item No. Subject 16-9-1 Call to Order

16-9-2 Introduction of Members and Guests

16-9-3 Approval of Previous Meeting Minutes [Attachment]

16-9-4 Review of New Regs and Committee Actions

16-9-5 Task Group Reports

16-9-6 Processing of Public Inputs [Attachment]

16-9-7 Old Business

16-9-8 New Business

16-9-9 Adjournment

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Address List No PhoneEmergency Power Supplies EPS-AAA

National Electrical Code®

Christopher Coache08/11/2016

EPS-AAA

Dan Chisholm, Sr.

ChairMGI Systems, Inc.PO Box 2474Winter Park, FL 32790-2474

IM 10/1/1993EPS-AAA

David Stymiest

ChairSmith Seckman Reid, Inc.2995 Sidco DriveNashville, TN 37204

SE 1/12/2000

EPS-AAA

Herbert H. Daugherty

Secretary (Alternate)Electric Generating Systems Association6720 Ringold StreetMelbourne, FL 32940Electrical Generating Systems Association

M 4/5/2001EPS-AAA

Ernest E. Allen

PrincipalThe Doctors Company5001 Mayfield Road, Suite L55Lyndhurst, OH 44124NFPA Health Care Section

I 7/1/1990

EPS-AAA

Kenneth A. Cotton

PrincipalUS Energy/Donlee CropNetwork Operation Center140 East Stetson AveSuite 309Hemet, CA 92543Alternate: Joshua Dugger

M 10/1/1999EPS-AAA

Jason D'Antona

PrincipalThompson Consultants, Inc.525 Mill StreetMarion, MA 02738

SE 03/07/2013

EPS-AAA

David A. Dagenais

PrincipalWentworth-Douglass Hospital789 Central AvenueDover, NH 03820

U 08/09/2012EPS-AAA

Richard L. Day

PrincipalMichigan State Fire Marshal's Office207 Jackson StreetAllegan, MI 49010-9156

E 03/03/2014

EPS-AAA

Dennis DeMoss

PrincipalSargent & Lundy55 East Monroe StreetChicago, IL 60603Alternate: David C. Skiba

SE 1/1/1990EPS-AAA

William H. Everard

PrincipalEverard Mid Atlantic Inc.5712 General Washington Drive, Suite EAlexandria, VA 22312-2419

SE 1/1/1979

EPS-AAA

Louis J. Feller

PrincipalUS Army Corps of Engineers8212 126th Place SENewcastle, WA 98056-9132

U 03/03/2014EPS-AAA

James R. (Skip) Gregory

PrincipalHealth Facility Consulting4128 Zermatt DriveTallahassee, FL 32303-2252Florida Agency for Health Care Administration

E 3/21/2006

EPS-AAA

Ross M. Hardy

PrincipalThe University of Michigan Medical CenterPlant Hospital Maintenance1500 East Medical Center DriveAnn Arbor, MI 48073-6712

U 7/14/2004EPS-AAA

Jonathan Hartsell

PrincipalRodgers5701 North Sharon Amity RoadCharlotte, NC 28215

IM 07/29/2013

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EPS-AAA

James Hunt

PrincipalHOTSTART Inc.5723 East AlkiSpokane, WA 99212Electrical Generating Systems Association

M 08/03/2016EPS-AAA

Chad E. Loomis

PrincipalCornell University2336 South Balch HallIthaca, NY 14853

U 3/2/2010

EPS-AAA

Alan Manche

PrincipalSchneider Electric1601 Mercer RoadLexington, KY 40511-1025

M 10/23/2003EPS-AAA

George Mills

PrincipalThe Joint CommissionDepartment of EngineeringOne Renaissance BoulevardOakbrook Terrace, IL 60181Joint Commission on Accreditation HealthcareOrganizations

E 3/15/2007

EPS-AAA

Hugh O. Nash, Jr.

PrincipalNash-Consult964 General George Patton RoadNashville, TN 37221Alternate: Bogue M. Waller

SE 10/3/2002EPS-AAA

Michael D. Niclaus

PrincipalGregory Poole Power Systems CAT7309 Liserin Woods LaneFuquay Varina, NC 27526-5886

IM 03/03/2014

EPS-AAA

Daniel J. O'Connor

PrincipalJensen Hughes/AON Fire Protection Engineering4 Overlook PointLincolnshire, IL 60069-4302Alternate: Raymond J. Battalora

I 1/1/1984EPS-AAA

Gary L. Olson

PrincipalkW Rx, LLC12979 Killdeer Street NWMinneapolis, MN 55448-7018

SE 08/09/2011

EPS-AAA

Ralph E. Patterson

PrincipalPower Products & Solutions Inc.PO Box 691210Charlotte, NC 28227InterNational Electrical Testing Association

IM 7/28/2006EPS-AAA

Steve R. Sappington

PrincipalCaterpillar Inc.175 Cutstone CourtFayetteville, GA 30215-6206

M 08/11/2014

EPS-AAA

Ronald A. Schroeder

PrincipalASCO Power Technologies, LP50 Hanover RoadFlorham Park, NJ 07932Alternate: Brian J. Escott

M 1/10/2008EPS-AAA

Randy H. Schubert

PrincipalEricsson444 Hoes LanePiscataway, NJ 08854-4104Alliance for Telecommunications Industry SolutionsAlternate: Richard G. Kluge

U 12/08/2015

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EPS-AAA

Ronald M. Smidt

PrincipalCarolinas HealthCare SystemPO Box 901Troutman, NC 28166American Society for Healthcare Engineering

U 7/24/1997EPS-AAA

Raymond J. Stanko

PrincipalUL LLC333 Pfingsten RoadNorthbrook, IL 60062-2096

RT 8/9/2011

EPS-AAA

Peter R. Walsh

PrincipalMersen115 Teaticket PathFalmouth, MA 02536National Electric Fuse AssociationAlternate: Michael J. Lang

M 10/28/2008EPS-AAA

Timothy P. Windey

PrincipalCummins Power Generation1400 73rd Avenue NEMinneapolis, MN 55432-3702

M 08/03/2016

EPS-AAA

Larry Lau

Voting AlternateUS Department of Veterans AffairsOffice of Facilities Management811 Vermont Avenue, NWWashington, DC 20420

U 1/15/2004EPS-AAA

Rich Scroggins

Voting AlternateCummins Power Generation3850 North Victoria StreetShoreview, MN 55126-2907

M 10/28/2014

EPS-AAA

Raymond J. Battalora

AlternateJensen Hughes/AON Fire Protection EngineeringProject Director1701 North Collins BoulevardSuite 235Richardson, TX 75080-3553Principal: Daniel J. O'Connor

I 4/3/2003EPS-AAA

Dan Chisholm, Jr.

AlternateMGI Systems, Inc.412 Page StreetOrlando, FL 32806

IM 7/14/2004

EPS-AAA

Joshua Dugger

AlternateFacility Shield International14419 Veterans WayMoreno Valley, CA 92553-9059Principal: Kenneth A. Cotton

M 10/29/2012EPS-AAA

Brian J. Escott

AlternateASCO Power Technologies50 Hanover RoadFlorham Park, NJ 07932-1419Principal: Ronald A. Schroeder

M 07/29/2013

EPS-AAA

Richard G. Kluge

AlternateTelcordia Technologies (Ericsson)323 High Crest DriveWest Milford, NJ 07480Alliance for Telecommunications Industry SolutionsPrincipal: Randy H. Schubert

U 12/08/2015EPS-AAA

Michael J. Lang

AlternateMersen1135 Arva DriveRoswell, GA 30076National Electric Fuse AssociationPrincipal: Peter R. Walsh

M 10/29/2012

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EPS-AAA

David C. Skiba

AlternateSargent & Lundy LLC55 East Monroe StreetSuite 2710Chicago, IL 60603-5821Principal: Dennis DeMoss

SE 10/28/2014EPS-AAA

Bogue M. Waller

AlternateGresham Smith & Partners1400 Nashville City Center511 Union Street, Suite 1400Nashville, TN 37219Principal: Hugh O. Nash, Jr.

SE 10/23/2013

EPS-AAA

Christopher Coache

Staff LiaisonNational Fire Protection Association1 Batterymarch ParkQuincy, MA 02169-7471

8/7/2011

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National Fire Protection Association 1 Batterymarch Park, Quincy, MA 02169-7471 Phone: 617-770-3000 • Fax: 617-770-0700 • www.nfpa.org

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Public Input No. 11-NFPA 110-2016 [ Global Input ]

There is nothing implied that a inspection should be completed immediately prior to load banking. This seems like a "no - brainer" butin liew of saving money, some municipalities and customers are stating this is not necessary to perform a inspection and maintenanceprior to load bank testing. It would be nice to see a little more dedicated to load banking procedures. Perhaps a before you do this,this should be done kind policy. That would cover transfer tests as well. You have to understand there are a lot of people that readthis but are not capable of understanding it unfortunately.

Statement of Problem and Substantiation for Public Input

Clarify a order of procedures for those not in a position to assume what needs to be done as they may have no aptitude in this industry, i.e. a building engineer and a purchasing agent. Very hard to get them to understand what is being implied if its not in black and white.

Submitter Information Verification

Submitter Full Name: Brandon Cummings

Organization: Power nd Energy Services

Street Address:

City:

State:

Zip:

Submittal Date: Wed Apr 20 15:49:15 EDT 2016

National Fire Protection Association Report http://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPara...

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Public Input No. 18-NFPA 110-2016 [ Section No. 1.1.3 ]

1.1.3

This standard does not cover the following:

(1) Application of the EPSS

(2) Emergency lighting unit equipment

(3) Distribution wiring

(4) Utility service when such service is permitted as the EPSS

(5) Parameters for stored energy devices

(6) The equipment of systems that are not classed as Level 1 or Level 2 systems in accordance with Chapter 4 of this standard


The revised wording provides clarification that equipment that is connected to an EPSS that does not serve Level 1 and Level 2 loads in not within the scope of the standard. We have a Level 1 generator that has multiple ATSs. Only one of the ATSs serves Level 1 loads. The existing wording of 'equipment of systems' seems to imply that the boundary of the EPSS includes the ancillary equipment that does not serve Level 1 or Level 2 loads. The revised wording uses the term EPSS to be consistent with other sections of the standard. Additional information could be added with annex material as follows:

1.1.3(6)* Where multiple ATSs are connected to a Level 1 or Level 2 generators, only the ATSs that serve Level 1 or Level 2 electrical loads are within the scope of this standard. ATSs that do not serve Level 1 or Level 2 electrical loads are not within the scope of the standard. However, the electrical loads served by other than Level 1 and Level 2 ATSs can be used to provide electrical loading of the generator required in Section 8.


Submitter Full Name: Tom Christman

Organization: Self-employeed

Affilliation: None

Street Address:

City:

State:

Zip:

Submittal Date: Wed May 04 15:39:22 EDT 2016


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3.3.4* Emergency Power Supply System (EPSS).

A complete functioning EPS system coupled to a system of conductors, disconnecting means and overcurrent protective devices,transfer switches, and all control, supervisory, and support devices up to and including the load terminals of the transfer equipmentneeded for the system to operate as a safe and reliable source of electric power.

3.3.4.1 Multiple Generators Operating on a Common Bus. When multiple generators are connected together on a common bus,the common bus between the generators shall be considered to be the system source.


When generators are connected together to provide a common source for the system, many potential issues can come into play, since the most NFPA standards are written around the design of systems that are primarily radial in nature and utilize a single utility source for the system. Recognizing the system bus for multiple generator systems will clarify design requirements for things such as grounding and bonding of the system, and selective coordination of the distribution system connected to the generator source.

Note also that rather than here, this change could be made in 3.3.3.


Submitter Full Name: Gary Olson

Organization: kW Rx, LLC

Street Address:

City:

State:

Zip:

Submittal Date: Wed Jun 15 11:31:30 EDT 2016


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Public Input No. 51-NFPA 110-2016 [ Section No. 4.4 [Excluding any Sub-Sections] ]

This standard recognizes two levels of for equipment installation, performance, and maintenance requirements .


The original sentence is confusing and incomplete.

To correct, need to replace the word "of" with "for", and then add "requirements" to the end of the sentence.


Submitter Full Name: Timothy Windey

Organization: Cummins Power Generation

Street Address:

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State:

Zip:

Submittal Date: Mon Jun 27 10:37:42 EDT 2016


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Public Input No. 62-NFPA 110-2016 [ Section No. 5.2.1 [Excluding any Sub-Sections] ]

Energy converters shall consist only of rotating equipment as indicated in 5.2.4,or fuel cells as described in NFPA 853, Standard forInstallation of Stationary Fuel Cell Power Systems .


“I am the former chair and a current member of the committee responsible for writing the electrical chapters for NFPA 99. As such, it is our responsibility to determine and publish the performance requirements for health care facilities. As such, we have determined that fuel cells, with a properly designed system (i.e. N+1 to account for potential failure and continuously running to accommodate start-up time) are an acceptable power source to supply power to the essential electrical systems in health facilities. Indeed, due to their low emissions, reliability, and power quality, they are a better power source than most utilities or other standby power options.

Furthermore, increasing numbers of buildings of all types are now using fuel cells as an on-site generation source. I have personally been the engineer of record for a number of systems supplying NORMAL power for Kaiser Permanente. These systems, and many others in different building types, have proven themselves to be reliable sources of power.

We have submitted this proposal to align NFPA 110 with our document, and to better coordinate. I will be happy to work with the 110 committee to facilitate document coordination.”

Related Public Inputs for This Document

Related Input Relationship

Public Input No. 61-NFPA 110-2016 [Section No. 5.4]


Submitter Full Name: Walter Vernon

Organization: Mazzetti

Street Address:

City:

State:

Zip:



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Public Input No. 14-NFPA 110-2016 [ Section No. 5.2.1.2 ]

5.2.1.2

The capability of the energy converter, with its controls and accessories, to survive without damage from common and abnormaldisturbances in actual load circuits shall be demonstrable by tests on separate prototype models, or by acceptable tests on thesystem components as performed by the component suppliers, or by tests performed in the listing process for the assembly.

5.2.1.2.1

The energy converter for Level 1 systems shall be specifically designed, assembled, and tested to ensure durability, reliability, andproper system operation. Testing shall include:

(1) Endurance testing of the assembled prototype to demonstrate proper operation and acceptable equipment life under typicalstandby duty cycle conditions.

FPN: Typical duty cycle requirements for standby installations can be found in ISO 8528.

(2) Short circuits, including phase to ground, phase to phase, and all phase bolted faults.

(3) Stable operation and acceptable performance due to sudden load application and rejection.

(4) Stable operation and acceptable waveform quality while operating non-linear loads such as silicon-controlled rectifiers.

(5) Stable operation and acceptable waveform quality while operating medical equipment.

(6) Proper operation, without nuisance tripping, of critical protective equipment including engine overspeed, over temperature due toalternator overload, and engine overload conditions.

(7) Demonstration of reliable starting and proper operation under sustained load conditions at the rated temperature extremes for theequipment.

(8) Demonstration by test that the machine is torsionally sound.


It seems odd to me that the requirements for prototype testing are separated from the paragraph that requires them. So, I have suggested moving them to a sub-paragraph to the primary requirement, which is 5.2.1.2. That change is not critical but it does make the requirements easier to understand and find.

I don't believe the text of the actual prototype requirements have been modified for a long time. Note that many of these tests require testing of the assembled machine to validate, so text was added to make that more clear. For example, short circuit testing of an alternator alone does not qualify the generator set as being able to withstand a short circuit. The actual testing requirements are intended to be guidelines, but given advances in technology and engineering, I think they could be more specific so have made changes to the actual tests:

1. Endurance testing was added, because endurance tests are the only way to validate capability of the assembled product to operate properly in spite of vibration, load levels, etc. Generator engines for standby applications are "hot rods" in that they are designed to operate at high load levels for relatively short life spans compared to most engine powered equipment, so it seems reasonable that they would have some validation of life span in a standby environment. An endurance run is particularly useful in validating design for difficult to evaluate conditions, such as vibration characteristics.

2. The short circuit requirement was not specific as to what short circuit tests should be completed. Short circuits of different types impose different stresses on the assembled equipment, so it is reasonable to require that all types of short circuits be tested.

3. This text was added to require that actual testing of an assembled product for transient performance and stability is completed. Transient testing establishes a baseline for production equipment performance and validates the normal range of loads that can be applied while maintaining acceptable voltage and frequency.

4, 5. These paragraphs are mechanisms to provide not only a provision for stable operation, but to allow a designer to have data on the limits of the equipment when exposed to non-linear loads and specialized medical equipment. Note that there is no requirement that requires testing to verify that the medical equipment operates, only that the generator equipment is stable. A designer would be required to understand the operating limits of the loads and specify performance that allows the loads to operate.

6. Text of this requirement was expanded to make it clear that the requirement was not only to have protection, but to be sure that it does not nuisance trip, which is particularly critical in Level 1 applications.

7. In general, it is not possible to verify proper operation under adverse temperature conditions in factory or site testing because the tests are not done in an environment that is temperature or elevation controlled, so prototype testing is necessary to validate a design.

8. When the text requiring torsional compatibility was written, there was not test equipment commonly available to test for torsional compatibility. However, now there is, and a torsional test to verify compatibility is not an unreasonable requirement, since calculations will always lack the confidence of actual testing.



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Public Input No. 13-NFPA 110-2016 [Section No. 5.2.3]




Street Address:

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Submittal Date: Fri Apr 22 12:49:21 EDT 2016


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5.2.1.3

A separate prototype unit shall be permitted to be utilized in a Level 1 or Level 2 installation, provided that all prototype tests produceno deleterious effects on the unit, and the authority having jurisdiction, the owner, and the user are informed that the unit is theprototype test unit.


Level 1 installations are by definition highly critical installations. Prototype testing requires testing which is potentially damaging and reduces the life of the equipment. After testing, a machine would be required to be completely dis-assembled to have any chance of detecting damage to the machine and even with that, the damage may not be detected by a visual review or available tests of the hardware. To expect a customer, inspection authority, or even a consulting engineer to have the detailed technical background to evaluate the condition of a prototype is unrealistic. Consequently, the machine could never be considered to be as reliable as a new unit that is built to the prototype standard and should not be used for Level 1 installations.




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5.2.3

The energy converter for Level 1 systems shall be specifically designed, assembled, and tested to ensure system operation underthe following conditions:

(1) Short circuits

(2) Load surges due to motor starting

(3) Elevator operations

(4) Silicon controlled rectifier (SCR) controllers

(5) X-ray equipment

(6) Overspeed, overtemperature, or overload

(7) Adverse environmental conditions


Section 5.2.3 should be removed if my suggested changes to 5.2.1.2 are accepted.



Public Input No. 14-NFPA 110-2016 [Section No. 5.2.1.2]




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5.3.5

The When the EPS is not operating, the ambient air temperature in the EPS equipment room or outdoor housing containing Level Irotating equipment shall be stabilize at not less than 4.5°C (40°F).


The requirement is typically considered to be necessary to improve 10-second start and load pick-up reliability in cold climates. When a generator set is running under load in low ambient conditions, the machine can operate properly at very low ambient temperatures due to the amount of heat rejected from the equipment in normal operation and the fact that it automatically regulates its operating temperature via the engine thermostat. Consequently, it is not necessary to maintain 4.5C ambient when the equipment is running--just when it is idle. The word "stabilize" was added in recognition that after a machine operating in low ambient temperatures shuts down, it will take some time to bring the generator ambient back up to the 4.5C ambient.




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5.3.5

The ambient air temperature in the EPS equipment room or outdoor housing containing Level I rotating equipment shall be stabilizeat not less than 4.5°C (40°F) when the equipment is not operating .


I believe that the intent of this section is to have the ambient air temperature threshold set to make sure that the EPS will start per requirements outlined in chapter 4 of this standard. The temperature requirement is only relevant when the EPS is not operating.

"Stabilize" was added because the ambient air temperature may be less than 4.5 deg C for a short time immediately after operations.




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Submittal Date: Fri Jun 24 10:57:23 EDT 2016


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Public Input No. 61-NFPA 110-2016 [ Section No. 5.4 ]

5.4* Energy Converters — Capacity.

The energy converters shall have the required capacity and response to pick up and carry the load within the time specified in Table4.1(b) after loss of primary power.

5.4.1 Because Fuel Cells cannot come up to rated load within a reasonable time,

5.4.1.1. Fuel cell installations must consist of N 1 units operating in parallel, and continuously supplying power to the EmergencySystem.

5.4.1.2 Fuel cell installations shall have a normal utility supply available in case of total system failure. And

5.4.1.3 Fuel cell installations shall include a connection for portable diesel generator to supply the legally required life safety loads.


“I am the former chair and a current member of the committee responsible for writing the electrical chapters for NFPA 99. As such, it is our responsibility to determine and publish the performance requirements for health care facilities. As such, we have determined that fuel cells, with a properly designed system (i.e. N+1 to account for potential failure and continuously running to accommodate start-up time) are an acceptable power source to supply power to the essential electrical systems in health facilities. Indeed, due to their low emissions, reliability, and power quality, they are a better power source than most utilities or other standby power options.

Furthermore, increasing numbers of buildings of all types are now using fuel cells as an on-site generation source. I have personally been the engineer of record for a number of systems supplying NORMAL power for Kaiser Permanente. These systems, and many others in different building types, have proven themselves to be reliable sources of power.

We have submitted this proposal to align NFPA 110 with our document, and to better coordinate. I will be happy to work with the 110 committee to facilitate document coordination.”



Public Input No. 62-NFPA 110-2016 [Section No. 5.2.1 [Excluding any Sub-Sections]]


Submitter Full Name: Walter Vernon

Organization: Mazzetti

Street Address:

City:

State:

Zip:



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5.5.3 *

The main fuel tank shall have a minimum capacity of at least 133 percent of either the low-fuel sensor quantity specified in 5.5.2 orthe quantity 110% of the quantity required to support the duration of run specified in Table 4.1(a), but not less than 1 . 5 hours .


The design of the fuel tank capacity is not currently correlated with the testing requirements. A Class 0.5 generator would be permitted to have a fuel tank with a capacity to support a 30 minute run (5.5.3). However, if the generator is not loaded to 30% nameplate kW rating, it must comply with 8.4.2.3 which requires a continuous test for 1.5 hours. With the tank designed for Class 0.5 (30 minutes) and a requirement to run for 1.5 hours continuous, the tank size is inadequate.

The revised wording also provides for a 10% increase to account for a sump volume and expansion volume. The 10% is derived from NFPA 20, 11.4.1.3.1 for sizing of a fuel tank.


Submitter Full Name: Tom Christman

Organization: Self-employeed

Street Address:

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Submittal Date: Wed May 04 16:51:46 EDT 2016


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5.6.2 Prime Mover Ratings.

Proper derating factors, such as altitudes, ambient temperature, fuel energy content, accessory losses, and site conditions asrecommended by the manufacturer of the generator set engine shall be used in determining whether or not brake power meets theconnected load requirements.


The authoritative source for actual derating factors is the manufacturer of the prime mover, not the assembler of a generator set.




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Public Input No. 26-NFPA 110-2016 [ Section No. 5.6.3.6.1 ]

5.6.3.6.1

A battery charger driven by the prime mover shall not be required for Level 2 generators , provided the automatic battery charger hasa high-low rate capable of fully charging the starting battery during running conditions as specified in 5.6.3.6 . within the time framerequired by this standard while powering all loads connected to the starting batteries.


An AC powered battery charger is less reliable than a mechanically driven DC alternator because the AC-powered system has several single points of failure including the incremental wiring, ac protective devices, and the charger itself. So, for critical applications it is reasonable to require both DC power sources in the system.

Generators often have significant DC loads when they are operating, in addition to the starting battery recharge duty. This addition makes it clear that the charger for critical applications must be capable of continuous operation with all loads attached.




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Public Input No. 50-NFPA 110-2016 [ Section No. 5.6.4.2 [Excluding any Sub-Sections] ]

For otto or diesel cycle prime movers, the type and duration of the cranking cycle shall be as specified in Table 5.6.4.2.

Table 5.6.4.2 Starting Equipment Requirements

Starting Equipment Requirements Level 1 Level 2

(a) Battery unit X X

(b) Battery certification X NA

(c) Cycle cranking X or O O

(d) Cranking limiter time-outs

Cycle crank (3 cycles) 75 sec 75 sec

Continuous crank 45 sec 45 sec

(e) Float-type battery charger X X

dc ammeter X X

dc voltmeter X X

(f) Recharge time 24 hr 36 hr

(g) Low battery voltage alarm contacts X X

X: Required. O: Optional. NA: Not applicable.


Need to tweak the table to get clarity:

Row (c) was "X or O" under level 1. Changed to "O", because if something is required or optional, that means it's optional.




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5.6.4.7

All chargers shall include the following characteristics, which are to be accomplished without manual intervention (i.e., manual switchor manual tap changing):

(1) At its rated voltage, the charger shall be capable of delivering energy into a fully discharged battery unit without damaging thebattery.

(2) The charger shall be capable of returning the fully discharged battery to 100 percent of its ampere-hour rating within the timespecified in Table 5.6.4.2, item (f).

(3) As specified in Table 5.6.4.2, item (e), meters with an accuracy within 5 percent of range shall be furnished.

(4) The charger generator set or charger shall be permanently marked with the following:

(5) Allowable range of battery unit capacity which can be recharged within the time requirements of NFPA 110

(6) Nominal output current and voltage

(7) Sufficient battery-type data to allow replacement batteries to be obtained

(8) The battery charger output and performance shall be compatible with the batteries furnished.

(9) Battery chargers used in Level 1 systems shall include temperature compensation for charge rate.


Text in the sub-paragraphs a, b, and c is modified to make the requirement more clear.

Temperature compensation is added because battery failure is, by a wide margin, the most common reason for failure of a generator set to start and pick up loads. Improper charge rate is the most common reason for premature battery failure because proper charge rate is temperature dependent, and without temperature compensation there isn't a good way to assure that a proper charge rate is achieved. So, particularly for Level 1 applications it seems only reasonable that this very low incremental cost provision should always be used.




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5.6.5.1

A control panel shall be provided and shall contain the following:

(1) Automatic remote start capability

(2) “Run-off-automatic” switch functions

(3) Shutdowns as required by 5.6.5.2 (3)

(4) Alarms as required by 5.6.5.2 (4)

(5) Controls as required by 5.6.5.2 (5)


Different manufacturers have labeled these functions in slightly different ways, and it is not important how they are labeled, as long as they are provided. Further, the text as currently written could be taken to require a single switch, while there is no reason why the functions could not be provided by separate push-buttons, or other switching mechanisms. So, simply requiring functions rather than a specifically labeled switch is a reasonable change.




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5.6.5.1

A control panel shall be provided and shall contain the following:

(1) Automatic remote start capability

(2) “Run-off-automatic” switch

(3) Shutdowns as required by 5.6.5.2 (3)

(4) Alarms as required by 5.6.5.2 (4)

(5) Controls as required by 5.6.5.2 (5)

(6) Controls for generators powering Level 1 loads shall include overload alarm and signalling to initiate load shedding.


NFPA 70 section 700.4 (B) requires "selective load pick up and load shedding" is required when both emergency and other loads are served from a common generator. Since that is nearly always the case, it is only reasonable that Level 1 generator sets incorporate load shedding capability.

If this suggestion is accepted, Table 5.6.5.2 must be modified to include this requirement for Level 1 systems.




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5.6.5.2


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Where a control panel is mounted on the energy converter, it shall be mounted by means of antivibration shock mounts, if required, tomaximize reliability. An automatic control and safety panel shall be a part of the EPS containing the following equipment or possessthe following characteristics, or both:

(1) Cranking control equipment to provide the complete cranking cycle described in 5.6.4.2 and required by Table 5.6.4.2

(2) Panel-mounted control switch(es) marked “run–off–automatic” to perform the following functions:

(3) Run: Manually initiate, start, and run prime mover

(4) Off: Stop prime mover or reset safeties, or both

(5) Automatic: Allow prime mover to start or stop by

closing

(a) operating a remote contact

and stop by opening the remote contact

(a)

(6) Controls to shut down and lock out the prime mover under any of the following conditions:

(7) Failing to start after specified cranking time

(8) Overspeed

(9) Low lubricating-oil pressure

(10) High engine temperature (An automatic engine shutdown device for high lubricating-oil temperature shall not be required.)

(11) Operation of remote manual stop station

(12) Individual alarm indication to annunciate any of the conditions listed in Table 5.6.5.2 and with the following characteristics:

(13) Battery powered

(14) Visually indicated

(15) Have additional contacts or circuits for a common audible alarm that signals locally and remotely when any of the itemizedconditions occurs

(16) Have a lamp test switch(es) to test the operation of all alarm lamps

(17) Controls to shut down the prime mover upon removal of the initiating signal or manual emergency shutdown

(18) The ac instruments listed in 5.6.9.9

Table 5.6.5.2 Safety Indications and Shutdowns

Level 1 Level 2

Indicator Function (at Battery Voltage) CV S RA CV S RA

(a) Overcrank X X X X X O

(b) Low water temperature X NA X X NA O

(c) High engine temperature pre-alarm X NA X O NA NA

(d) High engine temperature X X X X X O

(e) Low lube oil pressure X X X X X O

(f) Overspeed X X X X X O

(g) Low fuel main tank X NA X O NA O

(h) Low coolant level X O X X O X

(i) EPS supplying load X NA NA O NA NA

(j) Control switch not in automatic position X NA X X NA X

(k) High battery voltage X NA NA O NA NA

(l) Low cranking voltage X NA X O NA O

(m) Low voltage in battery X NA NA O NA NA

(n) Battery charger ac failure X NA NA O NA NA

(o) Lamp test X NA NA X NA NA

(p) Contacts for local and remote common alarm X NA X X NA X

(q) Audible alarm silencing switch NA NA X NA NA O

(r) Low starting air pressure X NA NA O NA NA

(s) Low starting hydraulic pressure X NA NA O NA NA


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Level 1 Level 2

Indicator Function (at Battery Voltage) CV S RA CV S RA

(t) Air shutdown damper when used X X X X X O

(u) Remote emergency stop NA X NA NA X NA

CV: Control panel–mounted visual. S: Shutdown of EPS indication . RA: Remote audible. X: Required. O: Optional. NA: Notapplicable.

Notes:

(1) Item (p) shall be provided, but a separate remote audible signal shall not be required when the regular work site in 5.6.6 is staffed24 hours a day.

(2) Item (b) is not required for combustion turbines.

(3) Item (r) or (s) shall apply only where used as a starting method.

(4) Item (i) EPS ac ammeter shall be permitted for this function.

(5) All required CV functions shall be visually annunciated by a remote, common visual indicator.

(6) All required functions indicated in the RA column shall be annunciated by a remote, common audible alarm as required in5.6.5.2(4).

(7) Item (g) on gaseous systems shall require a low gas pressure alarm.

(8) Item (b) shall be set at 11°C (20°F) below the regulated temperature determined by the EPS manufacturer as required in 5.3.1.


Change to (2)(c): Remote start circuits for most generator sets will accept either a N.O. or a N.C. contact, so the verbiage here shouldn't be tied to just the N.O. case. For example, when projects require fail-safe genset start/stop wiring, then a NC remote contact must be used.

Regarding the key at the bottom of table 5.6.5.2: Changed "S: Shutdown of EPS Indication" to "S: Shutdown of EPS". The word "Indication" doesn't make sense.

Please note that Terra View underlined almost everything and messed up the outline numbers and letters by mistake. I tried multiple times, but Terra couldn't handle it correctly.




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5.6.5.5

The cranking cycle shall be capable of being initiated by any of the following:

(1) Manual start initiation as specified in 5.6.5.2 (2)(a).

(2) Loss of normal power at any automatic transfer switch (ATS) considered a part of the EPSS. Prime mover shall start uponclosing of a remote switch or contacts and shall stop, (or stop) after appropriate time delays , when upon operation of a remoteswitch or set of contacts are opened .

(3) Clock exerciser located in an ATS or in the control panel.

(4) Manually operated (test) switch located in each ATS that simulates a loss of power and causes automatic starting and operationuntil this switch is reset, to cause the engine circuit to duplicate its functions in the same manner commercial power is restoredafter a true commercial power failure.


Remote start circuits for most generator sets will accept either a N.O. or a N.C. contact, so the verbiage here shouldn't be tied to just the N.O. case. For example, when projects require fail-safe genset start/stop wiring, then a NC remote contact must be used.




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5.6.9.9

The generator instrument panel for Level 1 applications shall contain the following:

(1) An ac voltmeter(s) for each phase or a phase selector switch

(2) An ac ammeter(s) for each phase or a phase selector switch

(3) A frequency meter

(4) A voltage-adjusting feature to allow ± 5 percent voltage adjustment

(5) An ac kW meter indicating total load on the generator set


In a generator set application an engine has very limited overload capability, and without a kW meter there is no easy way for an operator to visually see when loads are approaching the limits of the engine. (Because ammeters don't consider power factor, they don't actually indicate impending overload on an engine.)

Historically, kW meters were an expensive feature to add to a generator set, but now are a standard feature in most generator set products used in Level 1 systems.

Consequently, Level 1 systems should have this critical feature.




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5.6.10.6

Where requested, the short circuit current capability at the generator output terminals shall be furnished.

5.6.10.7 The energy converter for Level 1 systems shall be tested at the location of final assembly to demonstrate full load carryingcapability and transient performance under varying load levels. A test report documenting this performance shall be provided onrequest.


The on-site testing of a generator set is thoroughly covered by NFPA 110, but the expected performance for a specific machine under controlled conditions is not required. Adding a requirement for factory testing provides an assurance that the generator set will carry load as required if installed correctly, and demonstrates expected transient performance prior to installation. Consequently, when the equipment is tested at site, there is a means to verify that it is properly installed using the factory test data as a means to verify that the site results are equal or better.




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6.1.2*

The electrical rating ratings of the transfer switch shall be sized for selected based on the total load that is designed to beconnected, and the available fault current .


Currently there are no requirements in section 6.1 that are directed toward proper selection of a transfer switch in terms of both steady state ratings and fault current capability. Sections 6.3.1 & 2 add requirements, but they appear only as requirements for paralleling applications.

The text in 6.3.1 and 6.3.1 is in error, because listed transfer switches do not have interrupting ratings. Listed transfer switches have withstand&closing ratings, and steady state ratings. All listed transfer switches are continuously rated at their nameplate current rating.

This change suggests moving the rating requirements so that they clearly apply to all transfer switches, and correcting them to include proper wording for the actual requirements.




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Submittal Date: Thu Jun 16 11:27:33 EDT 2016


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6.2.2.1 *

Undervoltage-sensing devices shall be provided to monitor all ungrounded lines of the primary the normal source of power asfollows:

(1) When the voltage on any phase falls below the minimum operating voltage of any load to be served, the transfer switch shallautomatically initiate engine start and the process of transfer to the EPS.

(2)

Additional Proposed Changes

File Name Description Approved

NFPA_110_Public_Input_submission.docx


The word "primary" used to describe the power source referenced in this paragraph is not consistent with other NFPA documents. NFPA70 and 99 both use "normal" to describe this power source in multiple places. The word "normal" is also the conventional term used in the electrical power industry and by most equipment manufacturers on their products and literature describing this power source and the transfer switch position. The word "primary" is also used in paragraphs 6.2.3, 6.2.8, 6.2.9.1, 6.2.9.2, 6.2.11.1, 6.2.12 and 6.2.16.1 and should be to "normal" for consistency.


Submitter Full Name: Ronald Schroeder

Organization: ASCO Power Technologies, LP

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Submittal Date: Wed Jan 13 11:13:58 EST 2016

* When the voltage on all phases of the primary the normal source returns to within specified limits for a designated period oftime, the process of transfer back to primary to normal power shall be initiated.


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NFPA 110 Public Input submission

The word "primary" used to describe the power source referenced in this paragraph is not consistent

with other NFPA documents. NFPA70 and 99 both use "normal" to describe this power source in

multiple places. The word "normal" is also the conventional term used in the electrical power industry

and by most equipment manufacturers on their products and literature describing this power source

and the transfer switch position. The word "primary" is also used in paragraphs 6.2.3, 6.2.8, 6.2.9.1,

6.2.9.2, 6.2.11.1, 6.2.12 and 6.2.16.1 and should be to "normal" for consistency.

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6.2.5* Time Delay on Starting of EPS.

A time-delay device shall be provided to delay starting of the EPS. The timer shall prevent nuisance starting of the EPS and possiblesubsequent load transfer in the event of harmless momentary power dips and interruptions of the primary source.


Need to remove the word "harmless" from the sentence. If there are momentary power dips and interruptions with the primary source, we don't really know if they will be harmless. It could be harmless to some loads, but not harmless to others.




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Submittal Date: Tue Jun 28 16:05:24 EDT 2016


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1.1.4.1 *

This standard shall not cover the following:

(1) Application of the SEPSS

(2) Distribution wiring

(3) Systems having total outputs less than 500 VA or less than 24 V or systems less than Class 0.033 in accordance with section4.3.

(4) Unit equipment

(5) Nuclear sources, solar systems, and wind stored-energy systems

(6) Uninterruptible power systems (UPS) supplied by an emergency power supply system (EPSS) or a UPS supplied by a SEPSS

(7) Optional standby systems


Item (3) references “Class 0.033” systems but there is nothing in the section to clarify what a Class 0.033 system is. There is nothing in the definitions or Annex to explain what a Class 0.033 system means. It is explained in Section 4.3, so would it be helpful to have a reference to section 4.3 in section 1.1.4.1, similar to the reference in 1.1.4.2 and other places. The reader may not know what a Class 0.033 system is. So this will direct them to the appropriate section to help identify the meaning.


Submitter Full Name: Jim Muir

Organization: Building Safety Division, Clark County, Washington

Affilliation: NFPAs Building Code Development Committee (BCDC)

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Submittal Date: Tue May 24 17:24:28 EDT 2016


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4.2.2*

The interruption times of the SEPSS types covered by this standard shall be as provided in Table 4.2.2.

Table 4.2.2 Types of SEPSS

Type Interruption Time

Type O No interruptions — Type VFI, UPS carrying load, 0.0 sec

Type U Type VFD or Type VI, UPS system with utility as preferred source

Type A 0.25 cycle: 0.0042 sec

Type B 1.0 cycle: 0.0167 sec

Type 10 10 sec

Type M Manual stationary or nonautomatic — no time limit

Additional Proposed Changes

File Name Description Approved

111_A2015_EPS-AAA_TIA_Log1175.pdf NFPA 111 TIA 16-1 Log No. 1175


NOTE: This public input originates from Tentative Interim Amendment No. 1175 issued by the Standards Council on August 19, 2015 and per the NFPA Regs., needs to be reconsidered by the Technical Committee for the next edition of the Document.

To safely and practically address a global marketplace the NFPA should strive to harmonize its codes and standards with accepted international standards. Technical Committee-approved changes to Table 4.2.2 in NFPA 111, Stored Electrical Energy Emergency and Standby Power Systems, 2016 Edition, elaborate definitions of terms used to identify UPS performance classification. The elaborated definitions disharmonize NFPA 111 with industry accepted international standard, IEC62040-3, Edition 2.0 2011-03, “Uninterruptible power systems (UPS) – Part 3: Method of specifying the performance and test requirements”. Never does IEC62040-3 define performance classifications with respect to load interruption provided by UPS “Types”. Further, with respect to connected load interruption time, specifically zero interruption time, the addition of UPS “Type” terms VFI, VFD, and VI incorrectly associates those “Types’ “ performance capabilities with their ability to protect the load with zero interruption time.


Submitter Full Name: TC ON EPS_AAA

Organization: [ Not Specified ]

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Submittal Date: Wed Jan 06 15:54:13 EST 2016


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NFPA 111-Proposed 2016 Edition Standard on Electrical Energy Emergency and Standby Power Systems TIA Log No.: 1175 Reference: Table 4.2.2 Comment Closing Date: April 17, 2015 Submitter: Steven R. Sappington, Caterpillar, Inc. 1. Revise Table 4.2.2 to read as follows: Table 4.2.2 Types of SEPSS

Type Interruption Time

Type O No interruptions — Type VFI,UPS carrying load, 0.0 sec

Type U Type VFD or Type VI, UPS system with utility as preferred source

Type A 0.25 cycle: 0.0042 sec

Type B 1.0 cycle: 0.0167 sec

Type 10 10 sec

Type M Manual stationary or nonautomatic — no time limit

Substantiation: To safely and practically address a global marketplace the NFPA should strive to harmonize its codes and standards with accepted international standards. Technical Committee-approved changes to Table 4.2.2 in NFPA 111, Stored Electrical Energy Emergency and Standby Power Systems, 2016 Edition, elaborate definitions of terms used to identify UPS performance classification. The elaborated definitions disharmonize NFPA 111 with industry accepted international standard, IEC62040-3, Edition 2.0 2011-03, “Uninterruptible power systems (UPS) – Part 3: Method of specifying the performance and test requirements”. Never does IEC62040-3 define performance classifications with respect to load interruption provided by UPS “Types”. Further, with respect to connected load interruption time, specifically zero interruption time, the addition of UPS “Type” terms VFI, VFD, and VI incorrectly associates those “Types’ “ performance capabilities with their ability to protect the load with zero interruption time. Emergency Nature: This TIA modifies the incorrect and adverse correlation being made between UPS performance classification and load interruption provided by UPS “Types” by restoring Table 4.2.2 to its previous content. Leaving this error uncorrected would provide guidance to the market that is both incorrect and confusing when compared to the established definition provided by industry accepted international standard, IEC62040-3. As modified, the table provides to the marketplace a basis for an incorrectly applied definition indicating a VFI UPS is the only performance class that provides load protection with zero interruption. Several products defined by performance classification VI will provide load protection with zero load interruption upon primary power source loss. Prompt action described in this TIA will harmonize NFPA 111 to IEC62040-3 and maintain credibility of NFPA 111.

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Public Input No. 1-NFPA 111-2015 [ Chapter C ]

Annex C Informational References

C.1 Referenced Publications.

The documents or portions thereof listed in this annex are referenced within the informational sections of this standard and are notpart of the requirements of this document unless also listed in Chapter 2 for other reasons.

C.1.1 NFPA Publications.

National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169-7471.

NFPA 70 ®, National Electrical Code ®, 2014 edition.

NFPA 99, Health Care Facilities Code, 2015 edition.

NFPA 101 ®, Life Safety Code ®, 2015 edition.

NFPA 110, Standard for Emergency and Standby Power Systems, 2016 edition.

C.1.2 Other Publications.

C.1.2.1 ANSI Publications.

American National Standards Institute, Inc., 25 West 43rd Street, 4th floor, New York, NY 10036.

NEMA/ ANSI C84.1, American National Standard for Electric Power Systems and Equipment — Voltage Ratings (60 Hertz), 2011.

C.1.2.2 IEC Publications.

International Electrotechnical Commission, 3, rue de Varembé, P.O. Box 131, CH-1211 Geneva 20, Switzerland.

IEC 62040-3, Uninterruptible Power Systems (UPS)-Part 3: Method of Specifying the Performance and Test Requirements, 2011.

C.1.2.3 IEEE Publications.

IEEE, Three Park Avenue, 17th Floor, New York, NY 10016-5997.

IEEE 450, Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for StationaryApplications, 2010.

IEEE 1106, Recommended Practice for Maintenance, Testing, and Replacement of Vented Nickel-Cadmium Batteries for StationaryApplications, 2005 2015 .

IEEE 1188, Recommended Practice for Maintenance, Testing and Replacement of Valve-Regulated Lead-Acid Batteries for StationaryApplications, 2005, Amendment 1, 2014 .

C.1.2.4 UL Publications.

Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL 60062-2096.

ANSI/UL 1008, Standard for Safety Transfer Switch Equipment, 2012.

C.2 Informational References.

The following documents or portions thereof are listed here as informational resources only. They are not a part of the requirementsof this document.

C.2.1 NFPA Publications.

National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169-7471.

NFPA 70B, Recommended Practice for Electrical Equipment Maintenance, 2013 edition.

C.2.2 IEEE Publications.

IEEE, Three Park Avenue, 17th Floor, New York, NY 10016-5997.

ANSI/ IEEE 446, Recommended Practice for Emergency and Standby Power Systems for Industrial and Commercial Applications,2002 1995, reaffirmed 2000 .

ANSI/ IEEE 484, Recommended Practice for Installation Design and Installation of Vented Lead-Acid Batteries for StationaryApplications, 2002, reaffirmed 2008.

IEEE 485, Recommended Practice for Sizing Lead-Acid Batteries for Stationary Applications, 2010.

ANSI/ IEEE 944, Recommended Practice for the Application and Testing of Uninterruptible Power Supplies for Power GeneratingSystems, 1996. (Only Avialable in electronic format)

C.3 References for Extracts in Informational Sections.

NFPA 1, Fire Code, 2015 edition.


Referenced current editions.


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Submitter Full Name: Aaron Adamczyk

Organization: [ Not Specified ]

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Submittal Date: Thu Dec 24 23:07:22 EST 2015


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Public Input No. 5-NFPA 111-2016 [ Section No. C.1.2.4 ]

C.1.2.4 UL Publications.

Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL 60062-2096.

ANSI/UL 1008, Standard for Safety Transfer Switch Equipment, 2012 2014 .


This proposal updates the referenced UL Standards to the current edition.


Submitter Full Name: Ronald Farr

Organization: UL LLC

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first draft meeting agenda - nfpa€¦ · 2995 sidco drive nashville, tn 37204 se 1/12/2000 eps-aaa...

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