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Roxtec explosion protected solutions

ATEX and IECEx certified

Jörgen Åkesson

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Contents• Requirements for an explosion• Definition of an explosion• Procedure and consequence of an explosion• Ex equipment in Ex areas• ATEX• Zone classification and type of protection• Our news• Roxtec‘s Ex certificates• The global certification IECEx• Roxtec‘s Ex products• Marking and meaning• American standard• Competitor information• Questions & Answers• Guideline for selling Ex seals

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Requirements for an explosion

flammable material

flammable gas, liquids, vapor, fog, dust

oxygenusually oxygen

from the air or within another source

fire, sparksor hotsurfaces

sour

ceof

ignit

ion

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Definition of an explosion

Explosion= chemical reaction, which runs offabruptly and with a high speed, exothermic reaction

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What can happen when you don’t comply with ATEX?

• AZF Plant in Toulouse, France, 21st Sep 2001• Ammonia-Nitrate explosion, 31 dead, 2442 injured

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Hayes Auto Parts, Kentucky, USA, 20th Feb 2003 Dust explosion – 7 fatally burned, 30 injured

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West Pharmaceuticals, Kinston, USA, 29th Jan 2003

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What is an Ex area?Ex areas are known as “Hazardous Locations”, “Hazardous Areas” or “Explosive Atmospheres”.

In these areas flammable liquids, vapors, gases or combustible dusts are likely to occur in quantities sufficient to cause a fire or explosion.

Today’s automation of industry has meant increased use of ”Ex equipment” in Ex areas.

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- Automotive re-fuelling stations or petrol stations - Oil refineries, rigs and processing plants - Oil and gas tankers, drilling ships and FPSO’s (Floating Production Storage

Offloading vessels) - Chemical processing plants - Printing industries, paper and textiles - Hospital operating theatres - Aircraft re-fuelling and hangars - Surface coating industries - Underground coal mines - Sewerage treatment plants - Gas pipelines and distribution centers - Grain handling and storage - Woodworking areas - Sugar refineries - Metal surface grinding, especially aluminum dusts and particles

Where do you find Ex equipment?

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Where to use Ex classified cable seals?

- In Ex classified enclosures such as cabinets, motors, generators, junction boxes, etc

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What is ATEX?

- The European Directives relating to Potentially Explosive Atmospheres

ATmosphères EXplosibles

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ATEX Directive

Why ATEX?

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ATEXReasons for the ATEX rules

One market

One design

One standard

To ensure free movement for products, keeping the essential health and safety requirements, in the EU territory

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ATEX

AccidentsProblems, fork, lift, truck, etc

Why ATEX rules?

Electrical and mechanical equipment and protective systems

Includes dust

Applies to manufacturers and users

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ATEX

Directive 94/9/EC

Valid for equipment, components and protection systems intended for use in explosive atmospheres.

The manufacturer must prove that equipment fulfils the essential safety requirements.

Published in 1996, mandatory from the 1st of July 2003.

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ATEX Directive 94/9/EC

All products for hazardous areas sold after the 30th of June 2003 in the European market must be designed and certified acc. to this directive.

They must conform to requirements electrical apparatus to get the CE marking.

The directive requires electrical components certified acc. to following standards:EN 50015, EN 50016/EN60079-2, ..., EN 50018/EN60079-1, EN 50020, EN 60079- 15, EN 50028/EN 60079-18, EN 50281-1-1.The standards are used together with the general part EN 60079-0.

The quality system of the producer must also be ATEX approved!

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ATEXCouncil Directive 1999/92/EC

Minimum requirements for improving safety and health protection of workers at risk from explosive atmospheres

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ATEXDirective 1999/92/EC

The areas in risk of explosions from dust and gas must be definedThere must be a risk assessmentAn explosion protection document must be releasedCertified electrical apparatus must be used*New plants from 01.07.2003 / Running facilities 3 years later!

Rules for all facilities in hazardous areas in the European market:

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ATEXEU territory

Austria

Belgium

Bulgaria

Cyprus

Czech Republic

Denmark

Estonia

Finland

France

Germany

Greece

Hungary

Ireland

Italy

Norway

Switzerland

Japan

Australia

Korea

Singapore

Others.....

Latvia

Lithuania

Luxembourg

Malta

Netherlands

Poland

Portugal

Romania

Slovakia

Slovenia

Spain

Sweden

United Kingdom

Countries outside EU having accepted the ATEX rules

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Classification in zonesExample: Petrol station

Zone 2

Zone 0Zone 1

Zone 0Zone 0

Zone 1

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Example of Area Classification

BundBund

FlammableFlammableliquidliquid

Source of hazardSource of hazardcontinuous gradecontinuous grade

ZONE 0ZONE 0 VentVent

Sump withSump withreducedreduced

ventilationventilation

ZONE 1ZONE 1

ZONE 2ZONE 2

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Zone classification (EN 60079-10)

Hazardous areas are classified into zones based on the possibility of occurrence of an explosive atmosphere (Directive 1999/92/EC and 94/9/EC):

Zone classification must be done by operator or authorised specialist.

Explosion hazardzones classified =Probability, frequency, duration of occurence of Ex atmosphere

Flammable material

Definition, an explosive atmosphere is:

Zone

Gas, vapour, mist

Present continuously, frequently Zone 0

Likely to occur in normal operation Zone 1

Is not likely to occur, short period Zone 2

Dust Present continuously, frequently Zone 20

Likely to occur in normal operation Zone 21

Is not likely to occur, short period Zone 22

Highlighted zones = Permitted zones for Roxtec Ex products

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ATEX DirectiveMARKINGAreas Classification of

explosionhazard

Required marking for electrical equipment

Device group CategoryMining Operating I M1Mining Shutdown I M2 or M1

Surface Zone 0 II 1GSurface Zone 1 II 2G or 1GSurface Zone 2 II 3G or as 2GSurface Zone 20 II 1DSurface Zone 21 II 2D or 1DSurface Zone 22 II 3D or as 2D

Highlighted zones = Permitted zones for Roxtec Ex products

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Type of protection

Flame-proof enclosureMarking Ex d

Intrinsic safetyMarking Ex ia/ib

Other types*:Ex p - pressurizationEx q - powder fillingEx o - oil immersionEx m - encapsulationEx n – non-sparking equipment

*May be suitable if other demands are not requested. Needs examination from case to case.

Increased safetyMarking Ex e

Highlighted = Protection for Roxtec Ex products

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Protection Flame-proof enclosure, Ex d Standards: EN 50014, IEC 60079-0, EN 60079-0/1, IEC 60079-1, EN 13463-1/3

PrincipleIgnition protection in which the parts that could ignite an explosive atmosphere are locatedinside an enclosure that withstands the pressure of an explosion inside, and preventstransmission of the explosion to the atmosphere surrounding the enclosure.

ApplicationsEquipment where sparks, electrical arcs and/or hot surfaces are generated: switchgear, slip rings, collectors, adjustable resistors, fuses or lampsand heating cartridges.

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Protection Intrinsic safety, Ex ia/iB Standard: EN 50014, IEC 60079-0, EN 60079-11, IEC 60079-11

PrincipleIntrinsically safe electrical equipment contains only circuits that meet the requirements of intrinsiallysafe circuits.

ApplicationsMeasuring and monitoring instrumentation and control.Sensors working on the basis of physical, chemical or mechanical principles and at limited power.Actuators working on the basis of optical, acoustic and, to a certain extent, mechanical principles.

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Protection Increased safety, Ex e Standards: EN 60079-0/7, IEC 60079-0/7

PrincipleAdditional measures provide a higher degree of safety. This ensures reliable prevention of unacceptablyhigh temperatures and sparks or electrical arcs, both on the internal and the external parts of electricalequipment whose normal operation does not involve unacceptably high temperature sparks or arcing.

ApplicationsInstallation material such as junction boxes, connection cabinets for heating systems, batteries,transformers, ballast and cage motors.

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What’s new?

• ATEX certificates according to new EN standard:EN 60079-0:2006EN 60079-7:2003EN 61241-0:2006EN 61241-1:2004

• Certified for extended frame combinations for S-, SF- and G frames. Maximum size 8+8+8x10.

• IECEx certificates according to IECEx International Certification System

• Certified according to national standards for Russia, Croatia and Ukraine

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Product CertificatesFrame/Seal ATEX certificate IECEx certificate

C RS T Ex SP08ATEX3913X IECEx SP 09.0001X

RS…B Ex SP08ATEX3914X IECEx SP 09.0001X

RS…W Ex SP08ATEX3915U IECEx SP 09.0002U

CF 8 Ex SP08ATEX3916X IECEx SP 09.0001X

CF 32 Ex SP08ATEX3916X IECEx SP 09.0001X

CF 16 Ex SP08ATEX3917X IECEx SP 09.0001X

R…B Ex SP08ATEX3918X IECEx SP 09.0001X

R…W Ex SP08ATEX3919U IECEx SP 09.0002U

B…B Ex SP08ATEX3920X IECEx SP 09.0001X

B…C Ex SP08ATEX3921U IECEx SP 09.0002U

SF Ex SP08ATEX3922X IECEx SP 09.0001X

G Ex SP08ATEX3922X IECEx SP 09.0001X

S Ex SP08ATEX3923U IECEx SP 09.0002U

SF…W Ex SP08ATEX3924U IECEx SP 09.0002U

Additional certificates for following countries:RussiaCroatiaUkaine

All ATEX and IECEx certificates are issued by Notified Body No 0402,SP Technical Research Institute of Sweden.

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The global standard IECExThe IECEx Certified Equipment Program

• International Certification Scheme covering products meeting the requirements of International Standards, e.g. IEC Standards prepared by TC 31.

• Certificates of the IECEX Certified Equipment Program are issued as “Electronic Certificates”. They are live on the IECEx website. This enables full public access for viewing and printing. Visit the website www.iecex.com System

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Roxtec’s IECEx certificates

www.iecex.com

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Roxtec Ex standard products

S Ex G Ex

C RS T Ex

Modules Ex

CF 16 Ex CF 32 ExCF 8 Ex

R Ex

Wedge kit Ex

RS Ex

Wedges Ex Stayplates Ex

SF...W Ex

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Description of marking on Roxtec products (”U”-certificate)

3. Ex e II = Marking for protection againstpotential explosive gases.

Ex = The symbol to indicatee that theelectical apparatus corresponds with oneor more explosion protection techniques

e = The symbol for each type ofprotection techniques used. ”e” isincreased safety.

II = The group of electrical apparatus

Ex tD = Marking for protection againstpotential explosive dust. Protected byenclosure.

A21 = The equipment is intended to beplaced in zone 21 and 22 (not in zone 20)

2. IECEx certificate numberU=Marking to indicate that the equipmentis an EX comonent

1

2

1. Type of gland (cable seal)

3

6

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4. The equipment group ofelectrical apparatus

5. SP = Name or mark of notified body.

08 = Year of certification

3923 = Consecutive No.

U = Marking to indicate thatthe product is anEx component

6. Type designation for thecertified cable gland.

7. 0402 = Serial number ofnotified body.

8. Minimum and maximumambient temperature.

7

8

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Description of marking on Roxtec products (”U”-certificate)

Ex component - not intended to be used alone. Requires additional certification.

All our frames intended to be welded have a certificate marking ending with the suffix ”U”. This means that the total cable entry needs to be certified after welding.

Certificate marking ending with the suffix ”X” does not require this extra certification.

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Description of marking on Roxtec products (”X”-certificate)

Indicates ”X”-certificate. Certificate of Conformity

”X”= Special condition may be noted.

For Roxtec, ”X” indicates the following:

1. For maintaining the explosion protection, the Ex manual that comes with the products shall be considered.

2. Only cable for fixed installation is permitted.

3. The cable entry is ready for use not earlier than 24 h after being tightened according to the Ex manual.

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S Ex frames

Available materials:Primed mild steel or stainless steel.

Available sizes:Single frames: S 1x1 – S 8x1Combination frames: Maximum S 8+8+8x10

Certificate number:SP08ATEX3923UIECEx SP 09.0002U

S Ex AISI 316 S Ex Primed

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SF...W ExAvailable materials:Primed mild steel or stainless steel.

Available sizes:Single frames: SF 1x1 W - SF 8x1 W.Combinations frames: Maximum SF 8+8+8x10 W

Certificate number:SP08ATEX3924UIECEx SP 09.0002U

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G Ex framesAvailable materials:Primed mild steel, galvanized, or stainless steel.

Available sizes:Single frames: G 1x1 - G 8x1Combination frames: Maximum G 8+8+8x10

Certificate number:SP08ATEX3922XIECEx SP 09.0001X

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CF 8/32 Ex frames

Material:Aluminum

Certificate number:SP08ATEX3916XIECEx SP 09.0001X

CF 8 Ex CF 32 Ex

Available versions:CF 8/32 ExCF 8/32 Ex EMC

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CF 16 Ex framesMaterial:Powder coated mild steel or stainless steel

Certificate number:SP08ATEX3917XIECEx SP 09.0001X

CF 16 Ex CF 16 Ex AISI 304

Available versions:CF 16 ExCF 16 Ex AISI 304CF 16 Ex EMCCF 16 Ex EMC AISI 304

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R Ex frames

Available materials:Frame: Stainless steelSleeve without flange: Primed mild steel or stainless steel.Sleeve with flange: Primed or galvanized mild steel. Stainless steel.

Available sizes R…W, kit with R-frame and sleeve without flange:R 75 W, R 100 W, R 125 W, R 150 W and R 200 W.

Available sizes R…B, kit with R-frame, sleeve with flange and gasket:R 75 B, R 100 B, R 125 B, R 150 B and R 200 B.

Certificate number:SP08ATEX3919U, IECEx SP 09.0002U (R…W)SP08ATEX3918X, IECEx SP 09.0001X (R…B)

Available versions:R-frame, sleeve with flange (R..B)R frame, sleeve without flange (R...W)R EMC frame, sleeve with flange (R…B EMC)R EMC frame, sleeve without flange (R…W EMC)

R...W Ex R...B Ex

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RS Ex seals

Available materials:Seal: Stainless steelSleeve without flange: Primed mild steel or stainless steel.Sleeve with flange: Primed or galvanized mild steel. Stainless steel.

Available sizes RS…W, kit with RS-seal with core. Sleeve without flange:RS 25 W, RS 43 W, RS 50 W, RS 75 W.Available sizes RS…W, kit with RS-seal without core and sleeve without flange:RS 100 W, RS 125, RS 150 WAvailable sizes RS…B, kit with RS-seal with core. Sleeve with flange and gasket:RS 25 B, RS 43 B, RS 50 B, RS 75 B. Available sizes RS…B, kit with RS-seal without core. Sleeve with flange and gasket:RS 100 B, RS 125 B, RS 150 B

Certificate number:SP08ATEX3915U, IECEx SP 09.0002U (RS…W)SP08ATEX3914X, IECEx SP 09.0001X (RS…B)

Available versions:RS-seal, sleeve with flange (RS..B)RS-seal, sleeve without flange (RS...W)RS ES seal, sleeve with flange (RS…B ES )RS ES seal, sleeve without flange (RS…W ES )

RS...W

RS...B

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C RS T Ex sealsMaterial:Seal (C RS): Stainless steelSleeve: Nickel plated brass.

Available sizes, kit with C RS-seal:C RS T 25, C RS T 31, C RS T 43, C RS T 50

Certificate number:SP08ATEX3913X, IECEx SP 09.0001X

C RS T Ex

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Ex modulesRM Ex modules are available in the same sizes as non Ex modules.RM Ex PE/ES are available in the same sizes as non Ex PE/ES modules.

CM Ex modules are available in the following sizes:.CM 15w40 Ex CM 20w40 ExCM 30w40 ExCM 40 10-32 Ex

CM Ex PE/ES are available in the same sizes as non-Ex CM PE/ES modules.

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Wedge

Ex

Available materials:Galvanized mild steel or stainless steel.

Available sizes:Wedge 60Wedge 120

The Wedge Ex includes a Gauge Tool for modules and Installation instructions.

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Wedge

kit

Ex

Available materials:Galvanized mild steel or stainless steel.

Available sizes:Wedge kit 60Wedge kit 120

The Wedge Ex kit includes one Roxtec wedge 120 or 60, five stayplates, Gauge Tool, lubricant and installation instructions.

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ATEX and IECEx marking on Roxtec products

Wedge label Labels for box markingFrame label

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Explosion protection according to the American standard

There is no complete agreement between European (ATEX) and American (NEC) standards.

Type of protection:“Explosion proof” corresponds approximately to Exd“Intrinsically safe apparatus” corresponds approximately to Exi“Pressurized” corresponds approximately to Exp

Our Ex products has type of protection "Ex e- increased safety". There is not any similar type of protection according to the American standard.

Area classification: Division 1 corresponds approx. to zone 0 and 1. Division 2 corresponds approx. to zone 2.

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Competitors

• Hawke International www.ehawke.com• Stahl www.stahl.dewww.stahl.de• Pratley www.pratley.co.za• Cmp Products www.cmp-products.com• Malux www.malux.se• A.T.X. www.eg www.egsatx.com• Etc…

Glands

Modular system

• MCT Brattberg www.mct.com www.mctbrattberg.com• Hawke Transit System www.hawke-hts.com

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Questions & Answers

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Q: Do the international IECEx certificates mean approvals for all countries without additional national certification?

A: No. Only Australia and New Zeeland accept it. Other countries still require national certification in addition, but make this certification process easier.

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Q. What is the idea behind ATEX?

A. In one word – safety! i.e. protection against explosions and fires, ensuring correct equipment usage, etc…

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Q. Are “Markings/Signs” for 1999/92/EC and 94/9/EC the same?

A. No it was decided to distinguish between apparatus and installations. Both are shown below.

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Q: Do Ex enclosures normally need multi- combination frames such as 8+8+8x10?

A: No. Requirements from customers within oil & gas resulted in the extended frame combinations. For use in blast walls and zone barriers.

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Thank you for your attention

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