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Timestamp: 2019-08-21 15:14:21
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Ex Wall Chart | Chemistry | Chemical Substances
Ex Wall Chart
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APPARATUS GROUPS & TEMPERATURE CLASSES FOR COMMON FLAMMABLE MATERIALS
Gas/Vapour Acetic acid Acetone Acetylene Ammonia Butane Cyclohexane Di-ethyl ether Ethanol (ethyl alcohol) Ethylene Gasoline (petrol) Hydrogen Kerosene Methane (natural gas) (non-mining) Methanol (methyl alcohol) Methyl ethyl ketone (MEK) Propane Propan-1-ol (n-propyl alcohol) Propan-2-ol (iso-propyl alcohol) Toluene Xylene Dust Apparatus Groups IIIA IIIB IIIC Combustive flyings Non-conductive dust Conductive dust Temperature class T1 T1 T2 T1 T2 T3 T4 T2 T2 T3 T1 T3 T1 T2 T2 T1 T2 T2 T1 T1 Apparatus group llA llA llC llA llA llA llB llA llB IIA llC llA llA llA llB llA llB llA llA llA Dusts Aluminium Coal dust (lignite) Flour Grain dust Methyl cellulose Phenolic resin Polythene PVC Soot Starch Sugar Typical Ignition Temperature (C) Cloud 590 380 490 510 420 530 420 700 810 460 490 Layer >450 225 340 300 320 >450 (melts) >450 570 435 460 SIRA TEST & CERTIFICATION LTD Rake Lane, Eccleston, Chester, CH4 9JN, England Tel: +44 (0) 1244 670 900 Fax: +44 (0) 1244 681 330 Email: info@siracertication.com www.siracertication.com
Optical Radiation Symbol Op pr Op sh Op is e nA d nC q ia ib ic nL p px py pz nC nR nZ ma mb o Symbol t i m p Symbol fr d c b p k Typical IEC EPL Ga Gb Gc Gb Gc Gb Gc Gb Ga Gb Gc Gc Gb Gb Gb Gc Gc Gc Gc Ga Gb Gb Typical IEC EPL Typical Zone(s) 0,1,2 0,1,2 0,1,2 1,2 2 1,2 2 1,2 0,1,2 1,2 2 2 1,2 1,2 1,2 2 2 2 2 0,1,2 1,2 1,2 Typical Zone(s) 20, 21, 22 21, 22 22 21, 22 22 Possible Zone(s) 0,1,2 2 1,2 0,1,2 0,1,2 1,2 0,1,2 IEC Standard (status at August 2009) IEC 60079-28 IEC 60079-28 IEC 60079-28 IEC 60079-7 IEC 60079-15 IEC 60079-1 IEC 60079-15 IEC 60079-5 IEC 60079-11 IEC 60079-11 IEC 60079-11 IEC 60079-15 IEC 60079-2 IEC 60079-2 IEC 60079-2 IEC 60079-2 IEC 60079-15 IEC 60079-15 IEC 60079-15 IEC 60079-18 IEC 60079-18 IEC 60079-6 IEC Standard (status at August 2009) IEC 61241-1 IEC 61241-11 IEC 61241-18 IEC 61241-2 EN Standard (status at August 2009) EN 13463-1 EN 13463-2 EN 13463-3 EN 13463-5 EN 13463-6 EN 13463-7 EN 13463-8 Basic concept of protection Inherently safe protected. Protected by shutdown
SIRA TRAINING
Need training on Ex disciplines?
Sira offers courses covering all aspects of 'hazardous area' requirements. For more details, log on to www.siracerti cation.com
SIRA ATEX CERTIFICATE NUMBER
Increased safety Type n (non-sparking) Flameproof Type n (enclosed break) Quartz/sand filled Intrinsic safety Intrinsic safety Intrinsic safety Type n (energy limitation) Pressurised (up to 2007) Pressurised Pressurised Pressurised Type n (sealing & hermetic sealing) Type n (restricted breathing) Type n (simple pressurised) Encapsulation Encapsulation Oil immersion
No arcs, sparks or hot surfaces. Enclosure IP54 or better Contain the explosion, quench the flame Quench the flame Limit the energy of sparks and surface temperatures
TEMPERATURE CLASS (GROUP II)
450C 300C 200C 135C 100C 85C
Keep the flammable gas out
Serial number Reference to ATEX 95 directive Year of certification Name of notified body performing EC-type examination Suffixes: U component certification X special conditions for safe use apply
N.B. For Group I applications, apparatus has rigid 150C (coal dust) and 450C (methane) limits rather than T classes.
(Electrical) Enclosure Intrinsic safety
Basic concept of protection Standard protection for dusts, rugged tight enclosure Similar to t, but with some relaxations if circuit inside is intrinsically safe Protection by encapsulation of incendive parts Protection by pressurisation of enclosure Basic concept of protection Low potential energy Relies on tight seals, closely matched joints and tough enclosures to restrict the breathing of the enclosure Ignition hazards eliminated by good engineering methods Control equipment fitted to detect malfunctions Enclosure is purged and pressurised to prevent ignition sources from arising Enclosure uses liquid to prevent contact with explosive atmosphere
IECEx licenced mark (IECEx only) Name and address of manufacturer
TYPICAL EQUIPMENT MARKING (ELECTRICAL EQUIPMENT)
Apparatus Group and T Class Equipment Protection Level (EPL)
Protection Concept(s) Ambient Temperature
Encapsulation Pressurised
Da Db Dc Db Dc Typical IEC EPL -
Ex de IIB T4 Gb Ex Supplies Ltd Chester CH4 9JN United Kingdom 0518 Floodlight P7 II 2 G D Ex tb IIIC T135
CE mark and number of notified body responsible for quality audit (ATEX only - CAT 1 & 2 electrical, CAT 1 non-electrical)
Series or type designation
C Db IP66
General Flow restricted enclosure Flameproof enclosure Constructional safety Control of ignition sources Pressurisation Liquid immersion
Ta = -20 C to +60 C SIRA 09ATEX1234 IECEx SIR 09.0788 2009 Sn 0001
(-20C to +40C if not marked)
Certificate number (ATEX only) Certificate number (IECEx only)
Year of manufacture and serial number
Specific marking of explosion protection (ATEX only)
Type of explosive atmosphere G - gases, vapours or mists, D - dust
TYPICAL EQUIPMENT MARKING (NON-ELECTRICAL EQUIPMENT) CONTENTS OF AN ATEX TECHNICAL FILE
(FOR CATEGORY 2/3 NON-ELECTRICAL EQUIPMENT)
INGRESS PROTECTION (IP) CODE BS EN 60529 (IEC 60529)
Technical file reference
Equipment group/category & type of explosive atmosphere
NEMA TESTING APPROXIMATE EQUIVALENT TO IPXX
Ref: Annex VIII (Internal Control of Production)
General description of product Design/manufacturing drawings List of standards applied Applicable test reports Ignition hazard assessment
Ex Supplies Ltd, Chester CH4 9JN Scirocco Mk II Pump 30/600 r.p.m IP65 File ref. no. 108112 Serial number: 1234 Manufactured: 2009
Protection against solid objects 0 - No special protection 1 - Objects > 50 mm diameter (e.g. part of a hand) 2 - Objects > 12.5 mm diameter (e.g. finger) 3 - Objects > 2.5 mm diameter (e.g. tool) 4 - Objects > 1.00 mm diameter (e.g. wire) 5 - Dust protected 6 - Dust tight
Protection against water 0 - No special protection 1 - Vertically dripping water 2 - Vertically dripping water, when enclosure tilted by 15 3 - Sprayed water up to 60 from the vertical 4 - Sprayed water from all directions 5 - Water jets 6 - Powerful water jets 7 - Temporary submersion to a depth of 1m 8 - Extended submersion to a depth > 1m
NEMA 1 NEMA 2 NEMA 3 NEMA 3R NEMA 3S NEMA 4 and 4X NEMA 5 NEMA 6 and 6P NEMA 12 and 12K NEMA 13
IP10 IP11 IP54 IP14 IP54 IP55 IP52 IP67 IP52 IP54
Protection Concept(s) T Class
COMPLIANCE ROUTES AND EQUIPMENT SELECTION
Zone Gas 0 1 1 2 Dust 20 21 21 22 Equipment Category 1 2* 2** 3 M1 Mining Any M2* M2** Any Relevant ATEX Annexes for Compliance III and IV or V III and VII or VI VIII# VIII III and IV or V III and VII or VI VIII# IX Any I II Group
Hazardous Area Characteristics
Explosive atmosphere present continuously or long periods or frequently (>1000 hours/year) Explosive atmosphere is likely to occur in normal operation occasionally (>10 <1000 hours/year) Explosive atmosphere is not likely to occur in normal operation or infrequently and for short periods (<10 hours/year)
* Electrical equipment and internal combustion engines only ** Non-electrical equipment only # and communicate the technical file to a notified body Alternative route for any product
This table cannot be used to convert IP codes to NEMA ratings
If explosive atmosphere present, equipment remains energised If explosive atmosphere present, equipment de-energised If explosive atmosphere present, equipment de-energised
The Competence Professional Scheme
NORTH AMERICAN APPROVAL MARKING
NORTH AMERICAN / EUROPEAN AREA CLASSIFICATION EQUIVALENTS - GAS
Flammable Flammable Flammable Material Present Material Present Material Present Continuously Intermittently Abnormally
The only UKAS Accredited and nationally recognised personnel certification scheme for individuals working in hazardous areas. Log on to www.competencepro.com for more details.
Application to Sira
Qualifications Job details Experience Scope
NORTH AMERICAN / EUROPEAN EQUIPMENT GROUPING EQUIVALENTS - GAS
US (NEC 505) CA (CEC Section 18) EU IEC
IEC / EU US NEC 505 US NEC 500 CA CEC Section 18 CEC Annex
Zone 2 Zone 2 Division 2 Zone 2 Division 2
Typical gas
US (NEC 500) CA (CEC Annex J)
Zone 0 Zone 1 Division 1 Zone 0 Zone 1 Division 1
IEC classification per IEC 60079-10 IEC classification per EN 60079-10 US classification per ANSI / NFPA 70 National Electrical Code (NEC) Article 505 CA classification per CSA C22.1 Canadian Electrical Code (CEC) Section 18 or Annex J
Acetylene Hydrogen Ethylene Propane Methane
Group IIC (Group IIB + H2) Group IIB Group IIA Group I*
Class I / Group A Class I / Group B Class I / Group C Class I / Group D Mining*
* Not within scope of NEC . Under jurisdiction of MSHA. Not within scope of CEC.
Specialists in design, supply and maintenance of industrial and hazardous area electrical equipment
UK Offices Stirling +44 (0)1786 449444 Aberdeen +44 (0)1224 874554 Hull +44 (0)1482 213626 Lowestoft +44 (0)1502 539991
NORTH AMERICAN / EUROPEAN AREA CLASSIFICATION EQUIVALENTS - DUST
Combustible Dust Present Continuously Combustible Dust Present Intermittently Combustible Dust Present Abnormally
NORTH AMERICAN / EUROPEAN EQUIPMENT GROUPING EQUIVALENTS - DUST
Typical material EU (60079-0) IEC (60079-0) US (NEC 506) IEC (61241-0) US (NEC 500) EU (61241-0) CA (CEC Section 18)
Knowledge Certificate If sufficient and relevant
IEC / EU US NEC 506 US NEC 500 CA CEC Section 18
Zone 20 Zone 20
Zone 21 Zone 21
Zone 22 Zone 22 Division 2 Division 2
Metal dusts Carbonaceous dusts Non-conductive dusts Fibres and flyings
IIIC IIIB IIIB IIIA
N/A D D D
Class II, Group E Class II, Group F Class II, Group G Class III
US area classification per ANSI / NFPA 70 National Electrical Code (NEC) Article 500 or 506 CA area classification per CSA C22.1 Canadian Electrical Code (CEC) Section 18 EU area classification per EN 61241-10 IEC area classification per IEC 61241-10
For more information, visit the sira website: www.siracertification.com email: info@siracertification.com tel: +44 (0) 1244 670 900
Accredited certification and EU Notified Body activities are undertaken by Sira Certification Service. Sira has provided the technical information for this publication to DronDickson. The IP and copyright remains with Sira. Sira's association with this publication does not extend to endorsement of DronDicksons products with respect to performance or fitness for purpose.
a CSA International company
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