IEC 60695-1-21-2016 Fire hazard testing - Part 1-21 Guidance for assessing the fire hazard of electrotechnical products - Ignitability - Summary and relevance o.pdf

1、 IEC 60695-1-21 Edition 1.0 2016-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Fire hazard testing Part 1-21: Guidance for assessing the fire hazard of electrotechnical products Ignitability Summary and relevance of test methods Essais relatifs aux risques du feu Partie 1-21: Lignes directrices pou

2、r lvaluation des risques du feu des produits lectrotechniques Allumabilit Rsum et pertinence des mthodes dessais IEC 60695-1-21:2016-09(en-fr) BASIC SAFETY PUBLICATION PUBLICATION FONDAMENTALE DE SCURIT THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC, Geneva, Switzerland All rights reserv

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20、-21 Edition 1.0 2016-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Fire hazard testing Part 1-21: Guidance for assessing the fire hazard of electrotechnical products Ignitability Summary and relevance of test methods Essais relatifs aux risques du feu Partie 1-21: Lignes directrices pour lvaluation

21、 des risques du feu des produits lectrotechniques Allumabilit Rsum et pertinence des mthodes dessais INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 13.220.40, 29.020 ISBN 978-2-8322-3617-8 BASIC SAFETY PUBLICATION PUBLICATION FONDAMENTALE DE SCURIT Registere

22、d trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur

23、 agr. 2 IEC 60695-1-21:2016 IEC 2016 CONTENTS FOREWORD 3 INTRODUCTION 5 1 Scope .7 2 Normative references 7 3 Terms and definitions 8 4 Summary of published test methods 12 4.1 General 12 4.2 Tests using heated air or electrical heating 12 4.2.1 Determination of ignition temperature using a hot-air

24、furnace, ISO 871 . 12 4.2.2 Differential scanning calorimetry (DSC), ISO 11357 1 . 13 4.3 Tests using radiant heat 14 4.3.1 Heat release rate Cone calorimeter method, ISO 5660-1 4 14 4.3.2 Heat release of insulating liquids, IEC TS 60695-8-3 5 . 15 4.3.3 Standard test method for determining material

25、 ignition and flame spread properties, ASTM E 1321 6 . 16 4.3.4 Determination of the characteristic heat flux for ignition from a non- contacting flame source, IEC TS 60695-11-11 7 . 17 4.4 Oxygen index tests . 17 4.4.1 Oxygen index Ambient temperature test, ISO 4589-2 8 17 4.4.2 Oxygen index Elevat

26、ed temperature test, ISO 4589-3 10 . 18 4.5 Glowing/hot-wire based test methods 20 4.5.1 Glow wire tests, IEC 60695-2-11 14, IEC 60695-2-12 15 and IEC 60695-2-13 16 . 20 4.5.2 Hot wire coil ignitability test, IEC 60695-2-20 and ASTM D 3874 17 22 4.6 Flame tests . 23 4.6.1 Needle flame test, IEC 6069

27、5-11-5 18 23 4.6.2 50 W Horizontal and vertical flame test methods, IEC 60695-11-10 19 500 W flame test methods, IEC 60695-11-20 20 . 24 4.6.3 1 kW nominal pre-mixed flame, IEC 60695-11-2 23 25 4.6.4 Vertical and 60 tests for aircraft components, FAR 25 25 25 4.7 Tests using an electrical arc 26 4.7

28、.1 Tracking index tests, IEC 60112 26, ASTM D 3638 27 26 4.7.2 High-Current Arc Ignition (HAI), UL 746A Sec. 32 30 . 28 4.7.3 High-voltage arc resistance to ignition (HVAR), UL 746A Sec. 33 31 28 Annex A (informative) Applicability of test methods 30 A.1 Applicability of test methods 30 Bibliography

29、 . 32 Table 1 Main differences between IEC 60112 and ASTM D 3638 27 Table A.1 Applicability of test methods (1 of 2) . 30 IEC 60695-1-21:2016 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIRE HAZARD TESTING Part 1-21: Guidance for assessing the fire hazard of electrotechnical products Igni

30、tability Summary and relevance of test methods 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

31、all questions concerning standardization 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 Pub

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40、blication. 9) Attention is drawn to 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 60695-1-21 has been prepared by IEC technical committ

41、ee 89: Fire hazard testing. The text of this standard is based on the following documents: FDIS Report on voting 89/1336/FDIS 89/1339/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 draf

42、ted in accordance with the ISO/IEC Directives, Part 2. 4 IEC 60695-1-21:2016 IEC 2016 It has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC Guide 51. This first edition of IEC 60695-1-21 cancels and replaces the first edition of IEC TR 60695-1-21 published in 2

43、008. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Change from a TR to an international standard; b) Modified Introduction; c) Modified Scope; d) Updated normative references; e) Updated terms and defin

44、itions; f) Updates and new text in Clause 4; g) Addition of text concerning ASTM D 3638; h) Updates to Annex A; i) Updates to the bibliography. A list of all the parts in the IEC 60695 series, under the general title Fire hazard testing, can be found on the IEC website. The IEC 60695-1 series, under

45、 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 electrotechnical products Fire hazard assessment Part 1-12: Guidance for ass

46、essing 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 o

47、f test methods Part 1-30: Guidance for assessing the fire hazard of electrotechnical products Preselection testing procedures General guidelines Part 1-40: Guidance for assessing the fire hazard of electrotechnical products Insulating liquids The committee has decided that the contents of this publi

48、cation will remain unchanged until the stability date indicated on the 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. IEC 60695-1-21:2016 IEC 2016 5 I

49、NTRODUCTION Fires are responsible for creating hazards to life and property as a result of the generation of heat (thermal hazard), and also as a result of the production of toxic effluent, corrosive effluent and smoke (non-thermal hazard). Fires start with ignition and then can grow, leading in some cases to flash-over and a fully develop