EN 60695-1-20-2016 en Fire hazard testing - Part 1-20 Guidance for assessing the fire hazard of electrotechnical products - Ignitability - General guidance.pdf

1、Fire hazard testingPart 1-20: Guidance for assessing the fire hazard of electrotechnical products Ignitability General guidanceBS EN 60695-1-20:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN 6

2、0695-1-20:2016. It isidentical to IEC 60695-1-20:2016. It supersedes DD IEC/TS 60695-1-20:2008which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/89, Fire hazard testing.A list of organizations represented on this committee can be obtained onrequest to

3、its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 83871 2ICS 13.220.40; 29.020Compliance with a British

4、Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60695-1-20:2016EUROPEAN STANDARD NORME EURO

5、PENNE EUROPISCHE NORM EN 60695-1-20 May 2016 ICS 13.220.40; 29.020 English Version Fire hazard testing - Part 1-20: Guidance for assessing the fire hazard of electrotechnical products - Ignitability - General guidance (IEC 60695-1-20:2016) Essais relatifs aux risques du feu - Partie 1-20: Lignes dir

6、ectrices pour lvaluation des risques du feu des produits lectrotechniques - Allumabilit - Lignes directrices gnrales (IEC 60695-1-20:2016) Prfungen zur Beurteilung der Brandgefahr - Teil 1-20: Anleitung zur Beurteilung der Brandgefahr von elektrotechnischen Erzeugnissen - Entzndbarkeit - Allgemeiner

7、 Leitfaden (IEC 60695-1-20:2016) This European Standard was approved by CENELEC on 2016-03-02. 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-t

8、o-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by tra

9、nslation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

10、 Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Europ

11、ean Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide

12、 for CENELEC Members. Ref. No. EN 60695-1-20:2016 E BS EN 60695-1-20:2016EN 60695-1-20:2016 2 European foreword The text of document 89/1296/FDIS, future edition 1 of IEC 60695-1-20:2016, prepared by IEC/TC 89 “Fire hazard testing“ was submitted to the IEC-CENELEC parallel vote and approved by CENEL

13、EC as EN 60695-1-20:2016. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-12-02 latest date by which the national standards conflicting with the document have to be

14、withdrawn (dow) 2019-03-02 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent 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 I

15、EC 60695-1-20:2016 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC/TS 62441 NOTE Harmonized as CLC/TS 62441. IEC 60112 NOTE Harmonized as EN 60112. IEC 60587 NOTE

16、 Harmonized as EN 60587. IEC 60099-4 NOTE Harmonized as EN 60099-4. BS EN 60695-1-20:2016EN 60695-1-20:2016 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively reference

17、d 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. NOTE 1 When an International Publication has been modified by common modificat

18、ions, 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 Year IEC 60695-1-10 - Fire hazard testing - Part 1-10: Guidance for assessing the f

19、ire hazard of electrotechnical products - General guidelines EN 60695-1-10 - IEC 60695-1-11 - Fire hazard testing - Part 1-11: Guidance for assessing the fire hazard of electrotechnical products - Fire hazard assessment EN 60695-1-11 - IEC 60695-1-12 - Fire hazard testing - Part 1-12: Guidance for a

20、ssessing the fire hazard of electrotechnical products - Fire safety engineering EN 60695-1-12 - IEC/TR 60695-1-21 - Fire hazard testing - Part 1-21: Guidance for assessing the fire hazard of electrotechnical products - Ignitability - Summary and relevance of test methods - - IEC 60695-2-11 - Fire ha

21、zard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products (GWEPT) EN 60695-2-11 - IEC 60695-2-12 - Fire hazard testing - Part 2-12: Glowing/hot-wire based test methods - Glow-wire flammability index (GWFI) test method for materials EN 60695-2

22、-12 - IEC 60695-2-13 - Fire hazard testing - Part 2-13: Glowing/hot-wire based test methods - Glow-wire ignition temperature (GWIT) test method for materials EN 60695-2-13 - IEC 60695-4 2012 Fire hazard testing - Part 4: Terminology concerning fire tests for electrotechnical products EN 60695-4 2012

23、 IEC 60695-11-5 - Fire hazard testing - Part 11-5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance EN 60695-11-5 - BS EN 60695-1-20:2016EN 60695-1-20:2016 4 Publication Year Title EN/HD Year IEC 60695-11-10 - Fire hazard testing - Part 11-10: Test flame

24、s - 50 W horizontal and vertical flame test methods EN 60695-11-10 - IEC/TS 60695-11-11 - Fire hazard testing - Part 11-11: Test flames - Determination of the characteristic heat flux for ignition from a non-contacting flame source - - IEC 60695-11-20 - Fire hazard testing - Part 11-20: Test flames

25、- 500 W flame test methods EN 60695-11-20 - IEC Guide 104 - The preparation of safety publications and the use of basic safety publications and group safety publications - - ISO/IEC Guide 51 - Safety aspects - Guidelines for their inclusion in standards - - ISO 13943 - Fire safety - Vocabulary EN IS

26、O 13943 - ISO 871 2006 Plastics - Determination of ignition temperature using a hot-air furnace - - ISO 2592 - Determination of flash and fire points - Cleveland open cup method EN ISO 2592 - ISO 2719 - Determination of flash point - Pensky-Martens closed cup method EN ISO 2719 - ISO 5657 - Reaction

27、 to fire tests - Ignitability of building products using a radiant heat source - - ISO 5660-1 - Reaction-to-fire tests - Heat release, smoke production and mass loss rate - Part-1: Heat release rate (cone calorimeter method) and smoke production rate (dynamic measurement) - - ISO 10840 - Plastics -

28、Guidance for the use of standard fire tests - - BS EN 60695-1-20:2016 2 IEC 60695-1-20:2016 IEC 2016 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references. 6 3 Terms and definitions 7 4 Principles of ignitability 12 4.1 Gases . 12 4.1.1 Overview . 12 4.1.2 Flammability limits . 12

29、4.1.3 Arc fires . 12 4.2 Liquids 13 4.2.1 Overview . 13 4.2.2 Ignition parameters 13 4.2.3 Insulating liquids 13 4.3 Solids . 13 4.3.1 Overview . 13 4.3.2 Parameters affecting ignition 14 4.3.3 Metals . 14 4.3.4 Carbon (graphite) and carbonaceous char 15 4.3.5 Reactive substances 15 4.3.6 Dust cloud

30、s 15 5 Consideration for the selection of test methods 15 5.1 General . 15 5.2 Fire scenario . 16 5.3 Ignition sources . 16 5.3.1 General . 16 5.3.2 Internal ignition sources . 16 5.3.3 External ignition sources 17 5.3.4 Arc ignition of materials 18 5.4 Types of test specimen 19 5.5 Test procedure a

31、nd apparatus . 20 6 Use and interpretation of results 20 Annex A (informative) Examples of accidents due to arc fires in underground hydroelectric power plants or urban substations 21 A.1 General . 21 A.2 Examples which are generally available (non-exhaustive list) . 21 A.2.1 Underground hydroelectr

32、ic power plants . 21 A.2.2 Urban substations (non-exhaustive list) 21 Bibliography . 22 BS EN 60695-1-20:2016IEC 60695-1-20:2016 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIRE HAZARD TESTING Part 1-20: Guidance for assessing the fire hazard of electrotechnical products Ignitability Gene

33、ral guidance FOREWORD 1) The International 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 standardi

34、zation in the electrical and electronic fields. 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 i

35、s entrusted to technical committees; any 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

36、International Organization for Standardization (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 s

37、ince each technical committee has representation 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 conte

38、nt of IEC Publications is accurate, IEC cannot 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 possibl

39、e in their national and regional publications. 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

40、 assessment services and, in some areas, 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,

41、 employees, servants or agents including 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

42、of the publication, use of, or reliance upon, 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

43、 the possibility that some of the elements 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 60695-1-20 has been prepared by IEC technical committee 89: Fire hazard testing. This fi

44、rst edition of IEC 60695-1-20 cancels and replaces the first edition of IEC TS 60695-1-20 published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) ISO 5660-1 has been added to the norm

45、ative references; b) definitions of “pyrolysis” and “short-circuit” have been added to Clause 3; c) some text from the introduction has been moved to Clause 5 and is now part of the normative text; BS EN 60695-1-20:2016 4 IEC 60695-1-20:2016 IEC 2016 d) Clause 5 now contains several mandatory statem

46、ents. The text of this standard is based on the following documents: FDIS Report on voting 89/1296/FDIS 89/1302/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

47、 the ISO/IEC Directives, Part 2. It has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC Guide 51. In this standard, the terms defined in Clause 3 are printed in bold type. A list of all parts in the IEC 60695 series, published under the general title Fire hazard

48、 testing, can be found on the IEC website. The IEC 60695-1 series, under the general title Fire hazard testing, consists of the following parts: Part 1-10: Guidance for assessing the fire hazard of electrotechnical products General guidelines Part 1-11: Guidance for assessing the fire hazard of elec

49、trotechnical products Fire hazard assessment Part 1-12: Guidance for assessing the fire hazard of electrotechnical products Fire safety engineering Part 1-20: Guidance for assessing the fire hazard of electrotechnical products Ignitability General guidance Part 1-21: Guidance for assessing the fire hazard of electrotechnical products Ignitability Summary and relevance of test methods Part 1-30: Guidance for assessing the fire hazard of electrotechnical products Prese