IEC 60695-11-5-2016 Fire hazard testing - Part 11-5 Test flames - Needle-flame test method - Apparatus confirmatory test arrangement and guidance《着火危险试验.第11-5部分 针状火焰试验方法.装置、证实试验协议和指南》.pdf

1、 IEC 60695-11-5 Edition 2.0 2016-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Fire hazard testing Part 11-5: Test flames Needle-flame test method Apparatus, confirmatory test arrangement and guidance Essais relatifs aux risques du feu Partie 11-5: Flammes dessai Mthode dessai au brleur-aiguille Ap

2、pareillage, dispositif dessai de vrification et lignes directrices IEC 60695-11-5:2016-12(en-fr) BASIC SAFETY PUBLICATION PUBLICATION FONDAMENTALE DE SCURIT THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of thi

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20、 NORME INTERNATIONALE Fire hazard testing Part 11-5: Test flames Needle-flame test method Apparatus, confirmatory test arrangement and guidance Essais relatifs aux risques du feu Partie 11-5: Flammes dessai Mthode dessai au brleur-aiguille Appareillage, dispositif dessai de vrification et lignes dir

21、ectrices INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 13.220.40; 29.020 ISBN 978-2-8322-3792-2 BASIC SAFETY PUBLICATION PUBLICATION FONDAMENTALE DE SCURIT Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission E

22、lectrotechnique 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 agr. 2 IEC 60695-11-5:2016 IEC 2016 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Norm

23、ative references 7 3 Terms and definitions 8 4 Purpose of the test 10 5 Description of the test apparatus . 10 5.1 Burner. 10 5.2 Gas supply 10 5.3 Flame . 10 5.4 Control valve. 10 5.5 Laboratory fumehood/chamber 10 5.6 Layer 11 5.6.1 Specified layer . 11 5.6.2 Standardized layer . 11 5.7 Timing dev

24、ice . 11 6 Test specimen . 11 7 Flame application times . 11 8 Conditioning and test conditions 12 8.1 Conditioning 12 8.2 Test conditions . 12 9 Test procedure 12 9.1 General . 12 9.2 Position of test specimen 12 9.3 Application of needle-flame . 12 9.4 Number of test specimens . 13 10 Observations

25、 and measurements . 13 11 Evaluation of test results . 13 12 Information to be given in the relevant specification . 13 13 Test report . 14 Annex A (normative) Confirmatory test arrangement 16 A.1 Confirmation of the test flame Principle 16 A.2 Test apparatus 16 A.2.1 Burner . 16 A.2.2 Control valve

26、 . 16 A.2.3 Copper block . 16 A.2.4 Thermocouple 16 A.2.5 Temperature/time indicating/recording devices 16 A.3 Procedure . 16 Annex B (informative) Example of a product committee specification . 21 Annex C (informative) Comparison of results of confirmatory tests using propane and butane as fuel . 2

27、2 Bibliography 23 IEC 60695-11-5:2016 IEC 2016 3 Figure 1 Burner and flame . 14 Figure 2 Test positions. 15 Figure A.1 Copper block 18 Figure A.2 Confirmatory test arrangement 19 Figure A.3 Gauge to measure flame height and the distance between burner and copper block (example) . 20 Table B.1 Severi

28、ties and requirements . 21 Table C.1 Results of the confirmatory test using propane and butane as fuel . 22 4 IEC 60695-11-5:2016 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIRE HAZARD TESTING Part 11-5: Test flames Needle-flame test method Apparatus, confirmatory test arrangement and guid

29、ance 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 standardization i

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39、ssibility 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 60695-11-5 has been prepared by IEC technical committee 89: Fire hazard testing. This second ed

40、ition cancels and replaces the first edition published in 2004. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) The scope has been broadened to allow this test method to also simulate the effect

41、s of small flames from outside the equipment; b) Propane and butane gas are the specified fuel source with a minimum purity of 95 %; c) A new concept has been added which allows the burner to be moved during the test to avoid dripping material from falling onto the tip of the burner tube; d) The bur

42、ner tube material is now a referenced source; IEC 60695-11-5:2016 IEC 2016 5 e) The reference for the copper block material has changed the ISO publication (ISO 1337) has been withdrawn with no replacement. A new callout is now used; f) Informative Annex C and a bibliography have been added. The tex

43、t of this standard is based on the following documents: FDIS Report on voting 89/1346/FDIS 89/1351/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

44、Directives, Part 2. It has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC Guide 51. 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 committee has decided that the contents of thi

45、s publication will remain unchanged until the stability date indicated on the IEC website 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. 6 IEC 60695-11-5:2016 IEC

46、2016 INTRODUCTION The best method for testing electrotechnical products with regard to fire hazard is to duplicate exactly the conditions occurring in practice. In most instances this is not possible. Accordingly, for practical reasons, the testing of electrotechnical products with regard to fire ha

47、zard is best conducted by simulating as closely as possible the actual effects occurring in practice. Parts of electrotechnical equipment might be exposed to excessive thermal stress due to electric effects. This can result in deterioration that might impair the safety of the equipment. Such parts s

48、hould not be unduly affected by heat or by fire generated within the equipment. Parts of insulating material or of other combustible material which are liable to propagate flames inside the equipment may be ignited by flames produced by a failing component. Under certain conditions, for example a fa

49、ult current flowing over a tracking path, overloading of components or parts and bad connections, flames may also occur; such flames may impinge upon combustible parts in the vicinity. This part of IEC 60695 is intended to be used to measure and describe the properties of materials, products or assemblies in response to heat and flame under controlled laboratory conditions and is not intended