EN 60079-32-2-2015 en Explosive atmospheres - Part 32-2 Electrostatics hazards - Tests.pdf

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1、BSI Standards PublicationExplosive atmospheresPart 32-2: Electrostatics hazards TestsBS EN 60079-32-2:2015National forewordThis British Standard is the UK implementation of EN 60079-32-2:2015. It is identical to IEC 60079-32-2:2015.The UK participation in its preparation was entrusted to TechnicalCo

2、mmittee EXL/31, Equipment for explosive atmospheres.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British

3、Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 81609 3ICS 29.260.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2015.Am

4、endments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60079-32-2:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60079-32-2 April 2015 ICS 29.260.20 English Version Explosive atmospheres - Part 32-2: Electrostatics hazards - Tests (IEC 60079-32-2:2015) Atmosphr

5、es explosives - Partie 32-2: Dangers lectrostatiques - Essais (IEC 60079-32-2:2015) Explosionsgefhrdete Bereiche - Teil 32-2: Elektrostatische Gefhrdungen - Prfverfahren (IEC 60079-32-2:2015) This European Standard was approved by CENELEC on 2015-04-01. CENELEC members are bound to comply with the C

6、EN/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 may be obtained on application to the CEN-CENELEC Management C

7、entre 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 to the CEN-CENELEC Management Centre has the same st

8、atus as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuan

9、ia, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische N

10、ormung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60079-32-2:2015 E BS EN 60079-32-2:2015EN 60079-32-2:2015 - 2 - Foreword The text of document 31/1164/FDIS,

11、 future edition 1 of IEC 60079-32-2, prepared by IEC/TC 31 “Equipment for explosive atmospheres“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60079-32-2:2015. The following dates are fixed: latest date by which the document has to be implemented at national level by p

12、ublication of an identical national standard or by endorsement (dop) 2016-01-01 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2018-04-01 Attention is drawn to the possibility that some of the elements of this document may be the subject of paten

13、t rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 60079-32-2:2015 was approved by CENELEC as a European Standard without any modification. IEC 60079-1 NOTE Harmonized as EN 60079-1.

14、IEC 60079-7 NOTE Harmonized as EN 60079-7. IEC 60079-10-1 NOTE Harmonized as EN 60079-10-1. IEC 60079-10-2 NOTE Harmonized as EN 60079-10-2. IEC 60167 NOTE Harmonized as HD 568 S1. IEC 61340-4-1 NOTE Harmonized as EN 61340-4-1. IEC 61340-4-3 NOTE Harmonized as EN 61340-4-3. IEC 61340-4-5 NOTE Harmon

15、ized as EN 61340-4-5. ISO 284 NOTE Harmonized as EN ISO 284. ISO 8031 NOTE Harmonized as EN ISO 8031. ISO 8330 NOTE Harmonized as EN ISO 8330. BS EN 60079-32-2:2015- 3 - EN 60079-32-2:2015 Annex ZA (normative) Normative references to international publications with their corresponding European publi

16、cations The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

17、 NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Yea

18、r IEC 60079-0 - Explosive atmospheres - Part 0: Equipment - General requirements EN 60079-0 - - - +A11 - IEC 60093 - Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials HD 429 S1 - IEC 60243-1 - Electric strength of insulating materials - Test meth

19、ods - Part 1: Tests at power frequencies EN 60243-1 - IEC 60243-2 - Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage EN 60243-2 - IEC 60247 - Insulating liquids - Measurement of relative permittivity, dielectric dissipation fac

20、tor (tan d) and d.c. resistivity EN 60247 - IEC 61340-2-1 - Electrostatics - Part 2-1: Measurement methods - Ability of materials and products to dissipate static electric charge EN 61340-2-1 - IEC 61340-2-3 - Electrostatics - Part 2-3: Methods of test for determining the resistance and resistivity

21、of solid planar materials used to avoid electrostatic charge accumulation EN 61340-2-3 - IEC 61340-4-4 - Electrostatics - Part 4-4: Standard test methods for specific applications - Electrostatic classification of flexible intermediate bulk containers (FIBC) EN 61340-4-4 - ISO 14309 - Rubber, vulcan

22、ized or thermoplastic - Determination of volume and/or surface resistivity - - IEC/TS 60079-32-1 - Explosive atmospheres - Part 32-1: Electrostatic hazards, guidance CLC/TR 60079-32-1 - IEC/TS 61241-2-2 - Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Secti

23、on 2: Method for determining the electrical resistivity of dust in layers EN 61241-2-2 - ASTM E582 - Standard test method for minimum ignition energy and quenching distance in gaseous mixtures - - EN 1081 - Resilient floor coverings - Determination of the electrical resistance - - EN 1149-3 - Protec

24、tive clothing - Electrostatic properties - Part 3: Test methods for measurement of charge decay - - BS EN 60079-32-2:2015 2 IEC 60079-32-2:2015 IEC 2015 CONTENTS FOREWORD . 5 1 Scope 7 2 Normative references 7 3 Terms and definitions 8 4 Test methods . 10 4.1 General . 10 4.2 Surface resistance 11 4

25、.2.1 General . 11 4.2.2 Principle 12 4.2.3 Apparatus 12 4.2.4 Test sample . 13 4.2.5 Procedure 13 4.2.6 Acceptance criteria 14 4.2.7 Test report . 14 4.3 Surface resistivity . 14 4.4 Volume resistivity 14 4.5 Leakage resistance . 15 4.5.1 General . 15 4.5.2 Principle 15 4.5.3 Apparatus 15 4.5.4 Test

26、 sample . 15 4.5.5 Procedure 16 4.5.6 Acceptance criteria 16 4.5.7 Test report . 16 4.6 In-use testing of footwear 16 4.6.1 General . 16 4.6.2 Principle 16 4.6.3 Apparatus 17 4.6.4 Procedure 17 4.6.5 Acceptance criteria 17 4.6.6 Test report . 17 4.7 In-use testing of gloves . 17 4.7.1 General . 17 4

27、.7.2 Principle 18 4.7.3 Apparatus 18 4.7.4 Procedure 18 4.7.5 Acceptance criteria 18 4.7.6 Test report . 18 4.8 Powder resistivity 18 4.8.1 General . 18 4.8.2 Principle 19 4.8.3 Apparatus 19 4.8.4 Procedure 20 4.8.5 Acceptance criteria 20 4.8.6 Test report . 20 4.9 Liquid conductivity 21 BS EN 60079

28、-32-2:2015IEC 60079-32-2:2015 IEC 2015 3 4.9.1 General . 21 4.9.2 Principle 21 4.9.3 Apparatus 21 4.9.4 Procedure 22 4.9.5 Acceptance criteria 23 4.9.6 Test report . 23 4.10 Capacitance 23 4.10.1 General . 23 4.10.2 Principle 24 4.10.3 Apparatus 24 4.10.4 Test sample . 24 4.10.5 Procedure for moveab

29、le items . 24 4.10.6 Procedure for installed items . 25 4.10.7 Acceptance criteria 25 4.10.8 Test report . 25 4.11 Transferred charge . 25 4.11.1 General . 25 4.11.2 Principle 26 4.11.3 Apparatus 26 4.11.4 Test sample . 27 4.11.5 Procedure 27 4.11.6 Acceptance criteria 28 4.11.7 Test report . 28 4.1

30、2 Ignition test . 29 4.12.1 General . 29 4.12.2 Apparatus 29 4.12.3 Procedure 32 4.12.4 Acceptance criteria 32 4.12.5 Test report . 32 4.13 Measuring of charge decay . 33 4.13.1 General . 33 4.13.2 Principle 33 4.13.3 Apparatus 33 4.13.4 Test sample . 34 4.13.5 Procedure 34 4.13.6 Acceptance criteri

31、a 35 4.13.7 Test report . 35 4.14 Breakdown voltage . 35 4.14.1 General . 35 4.14.2 Principle 35 4.14.3 Apparatus 35 4.14.4 Test procedure 36 4.14.5 Acceptance criteria 37 4.14.6 Test report . 37 Bibliography 38 Figure 1 Test sample with applied electrodes (dimensions in mm) . 12 Figure 2 Measuring

32、cell for powder resistivity . 19 BS EN 60079-32-2:2015 4 IEC 60079-32-2:2015 IEC 2015 Figure 3 Measuring cell for liquid conductivity 22 Figure 4 Ignition probe . 31 Figure 5 Perforated plate of ignition probe . 32 Figure 6 Example of an arrangement for measurement of charge decay 34 Figure 7 Electr

33、odes for measuring breakdown voltage of sheets 36 Table 1 Volume concentrations of flammable test gas mixtures 30 BS EN 60079-32-2:2015IEC 60079-32-2:2015 IEC 2015 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ EXPLOSIVE ATMOSPHERES Part 32-2: Electrostatics hazards Tests FOREWORD 1) The Internationa

34、l Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic f

35、ields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any

36、IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardiz

37、ation (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has represe

38、ntation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC c

39、annot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publicat

40、ions. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas,

41、access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including

42、individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance u

43、pon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the element

44、s of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60079-32-2 has been prepared by IEC technical committee 31: Equipment for explosive atmospheres. The text of this standard is bas

45、ed on the following documents: FDIS Report on voting 31/1164/FDIS 31/1176/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A lis

46、t of all parts of the IEC 60079 series, under the general title Explosive atmospheres, can be found on the IEC website. BS EN 60079-32-2:2015 6 IEC 60079-32-2:2015 IEC 2015 The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the

47、 IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. BS EN 60079-32-2:2015IEC 60079-32-2:2015 IEC 2015 7 EXPLOSIVE ATMOSPHERES Part 32-2: Electrostatics ha

48、zards Tests 1 Scope This part of IEC 60079 describes test methods concerning the equipment, product and process properties necessary to avoid ignition and electrostatic shock hazards arising from static electricity. It is intended for use in a risk assessment of electrostatic hazards or for the prep

49、aration of product family or dedicated product standards for electrical or non-electrical machines or equipment. The purpose of this part of IEC 60079 is to provide standard test methods used for the control of static electricity, such as surface resistance, earth leakage resistance, powder resistivity, liquid conductivity, capacitance and evaluation of the incendivity of provoked discharges. It is especially intended for use with existing standard