BS-EN-60079-5-2007.pdf
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1、BRITISH STANDARD BS EN 60079-5:2007 Explosive atmospheres Part 5: Equipment protection by powder filling “q” ICS 29.260.20 ? Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:31 GMT+00:00 2008, Uncontrolled Copy, (c) BSI BS EN 60079-5:2007 This British Stand
2、ard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2008 BSI 2008 ISBN 978 0 580 54952 6 National foreword This British Standard is the UK implementation of EN 60079-5:2007. It is identical to IEC 60079-5:2007. It supersedes BS EN 50017:1998, which will
3、 be withdrawn on 1 November 2010. The UK participation in its preparation was entrusted to Technical Committee GEL/31, Equipment for explosive atmospheres. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include
4、all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication DateComments Licensed Copy: London South Bank University, London South Bank
5、University, Fri Feb 15 06:48:31 GMT+00:00 2008, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 60079-5 NORME EUROPENNE EUROPISCHE NORM November 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnisc
6、he Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60079-5:2007 E ICS 29.260.20 Supersedes EN 50017:1998 English version Explosive atmospheres - Part 5: Equip
7、ment protection by powder filling “q“ (IEC 60079-5:2007) Atmosphres explosives - Partie 5: Protection du matriel par remplissage pulvrulent “q“ (CEI 60079-5:2007) Explosionsfhige Atmosphre - Teil 5: Gerteschutz durch Sandkapselung “q“ (IEC 60079-5:2007) This European Standard was approved by CENELEC
8、 on 2007-11-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards
9、may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified
10、to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Lu
11、xembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:31 GMT+00:00 2008, Uncontrolled Copy, (c) BSI Foreword The text of d
12、ocument 31/675/FDIS, future edition 3 of IEC 60079-5, prepared by IEC TC 31, Equipment for explosive atmospheres, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60079-5 on 2007-11-01. This European Standard supersedes EN 50017:1998. This European Standard is to be r
13、ead in conjunction with EN 60079-0:2006. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2008-08-01 latest date by which the national standards conflicting with the EN have to
14、 be withdrawn (dow) 2010-11-01 This European Standard was prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and supports the essential requirements of Directive 94/9/EC. See Annex ZZ. Annexes ZA and ZZ have been added by CENELEC. _ Endorseme
15、nt notice The text of the International Standard IEC 60079-5:2007 was approved by CENELEC as a European Standard without any modification. _ EN 60079-5:2007 2 Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:31 GMT+00:00 2008, Uncontrolled Copy, (c) BSI CON
16、TENTS 1 Scope.4 2 Normative references .4 3 Terms and definitions .5 4 Constructional requirements.5 4.1 Enclosure5 4.2 Filling material.6 4.3 Distances 7 4.4 Materials used for support of energized parts8 4.5 External field-wiring connections .8 4.6 Capacitors.8 4.7 Cells and batteries 8 4.8 Temper
17、ature limitations.9 4.9 Temperature limitations under fault conditions.9 5 Verifications and tests 12 5.1 Type verifications and tests.12 5.2 Routine verifications and tests.13 6 Marking 14 7 Instructions.14 Annex A (informative) Introduction of an alternative risk assessment method encompassing equ
18、ipment protection levels for Ex equipment 16 Bibliography21 Figure 1 Test arrangement for the dielectric strength test of the filling material15 Table 1 Distances through the filling material.7 Table 2 Creepage distances and distances through filling material 11 Table A.1 Traditional relationship of
19、 EPLs to zones (no additional risk assessment) 18 Table A.2 Description of risk of ignition protection provided .19 EN 60079-5:2007 Annex ZZ (informative) Coverage of Essential Requirements of EC Directives.23 Annex ZA (normative) Normative references to international publications with their corresp
20、onding European publications22 3 Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:31 GMT+00:00 2008, Uncontrolled Copy, (c) BSI EXPLOSIVE ATMOSPHERES Part 5: Equipment protection by powder filling “q” 1 Scope This part of IEC 60079 contains specific require
21、ments for the construction, testing and marking of electrical equipment, parts of electrical equipment and Ex components in the type of protection powder filling “q”, intended for use in explosive gas atmospheres. NOTE 1 Electrical equipment and Ex components protected by powder filling “q” may cont
22、ain electronic circuits, transformers, protection fuses, relays, intrinsically safe electrical apparatus, associated electrical apparatus, switches, etc. NOTE 2 Type of protection powder filling “q” provides equipment protection level (EPL) Gb. For further information, see Annex A. This standard sup
23、plements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard will take precedence. This standard applies to electrical equipment, parts of electrical equipment and Ex components with:
24、 a rated supply current less than or equal to 16 A; a rated supply voltage less than or equal to 1 000 V; a rated power consumption less than or equal to 1 000 W. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, o
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