1、 IEC 60695-1-40 Edition 1.0 2013-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Fire hazard testing Part 1-40: Guidance for assessing the fire hazard of electrotechnical products Insulating liquids Essais relatifs aux risques du feu Partie 1-40: Guide pour lvaluation des risques du feu des produits
2、lectrotechniques Liquides isolants IEC60695-1-40:2013BASIC SAFETY PUBLICATION PUBLICATION FONDAMENTALE DE SCURIT THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized
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16、ou si vous avez des questions contactez-nous: csciec.ch. IEC 60695-1-40 Edition 1.0 2013-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Fire hazard testing Part 1-40: Guidance for assessing the fire hazard of electrotechnical products Insulating liquids Essais relatifs aux risques du feu Partie 1-40
17、: Guide pour lvaluation des risques du feu des produits lectrotechniques Liquides isolants INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE V ICS 13.220.40; 29.020 PRICE CODE CODE PRIX ISBN 978-2-8322-1170-0 BASIC SAFETY PUBLICATION PUBLICATION FONDAMENTALE DE SCU
18、RIT Registered 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
19、 distributeur agr. 2 60695-1-40 IEC:2013 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions 8 4 Classification of insulating liquids 13 5 Types of electrotechnical equipment containing insulating liquids 13 6 Fire parameters . 14 6.1 General 14 6.2 Igni
20、tion . 14 6.2.1 General 14 6.2.2 Combustion 14 6.2.3 Potential fire growth 14 6.2.4 Fire effluent 14 7 Fire scenarios 14 7.1 General 14 7.2 Origin fire scenarios . 14 7.2.1 General 14 7.2.2 Major causes of fire 15 7.2.3 Minor causes of fire 16 7.2.4 Pool fires 16 7.2.5 Burning spray . 16 7.2.6 Ignit
21、ion on hot surface 16 7.3 Victim fire scenarios . 16 8 Protective measures against fire 17 9 Considerations for the selection of test methods 17 9.1 General 17 9.2 Type tests 18 9.3 Sampling tests . 18 9.4 Arc resistance tests . 18 9.5 Relevance of test results to fire scenario 18 Annex A (informati
22、ve) History of insulating liquids 19 Annex B (informative) Preventive and protective measures against fire 20 B.1 General 20 B.2 Physical protective measures . 20 B.3 Chemical protective measures . 20 B.4 Electrical protective measures . 20 B.5 Sensing devices . 20 B.6 Maintenance and inspection . 2
23、0 Annex C (informative) Transformers. 22 C.1 General 22 C.2 Transformer choice 22 Annex D (informative) Power capacitors 24 60695-1-40 IEC:2013 3 Annex E (informative) Cables. 25 E.1 Power cables . 25 E.2 Communication cables . 26 E.3 Cables with water blocking compounds 26 E.4 Cable terminations .
24、26 Annex F (informative) Bushings . 27 Annex G (informative) Switchgear 28 Bibliography 29 Figure E.1 Oil viscosity 26 Table 1 Classification of insulating liquids 13 4 60695-1-40 IEC:2013 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIRE HAZARD TESTING Part 1-40: Guidance for assessing the fire haza
25、rd of electrotechnical products Insulating liquids 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
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32、ertification bodies provide conformity 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
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35、 publication. 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 60695-1-40 has been prepared by IEC technical comm
36、ittee 89: Fire hazard testing. This first edition of IEC 60695-1-40 cancels and replaces the first edition of IEC/TS 60695-1-40 published in 2002. It constitutes a technical revision and now has the status of an International Standard. The main changes with respect to the first edition of IEC/TS 606
37、95-1-40 are the integration of editorial and technical changes throughout the text. 60695-1-40 IEC:2013 5 The text of this standard is based on the following documents: FDIS Report on voting 89/1191/FDIS 89/1200/RVD Full information on the voting for the approval of this standard can be found in the
38、 report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all the parts in the 60695 series, under the general title Fire hazard testing, can be found on the IEC web site. This international standard is to be used i
39、n conjunction with IEC 60695-1-10. IEC 60695-1 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
40、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 rele
41、vance of test methods Part 1-30: Guidance for assessing the fire hazard of electrotechnical products Preselection testing process 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 p
42、ublication 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. 6 60695-1-40 IEC:2013 INTROD
43、UCTION In the design of any electrotechnical product the risk of fire and the potential hazards associated with fire need to be considered. In this respect the objective of component, circuit and product design as well as the choice of materials is to reduce to acceptable levels the potential risks
44、of fire even in the event of foreseeable abnormal use, malfunction or failure. For more than 100 years, insulating liquids based on mineral oil have been used for the insulating and cooling of electrical transformers and some other types of electrotechnical equipment. During the last 70 years, synth
45、etic insulating liquids have been developed and used in specific electrotechnical applications for which their properties are particularly suitable. However, for technical and economic reasons, highly refined mineral oil continues to be the most widely used insulating liquid for use in transformers,
46、 the major end use application. Their safe installation is covered by local, national and international regulations. The fire safety record of electrotechnical equipment containing insulating liquids is good, for both mineral oil and synthetic liquids. In recent years improvements in design and prot
47、ective measures against fire have reduced the fire hazard for electrotechnical equipment containing mineral oil. However, as for all forms of electrotechnical equipment, the objective should be to reduce the likelihood of fire even in the event of foreseeable abnormal use. The practical aim is to pr
48、event ignition, but if ignition occurs, to control the fire, preferably within the enclosure of the electrotechnical equipment. 60695-1-40 IEC:2013 7 FIRE HAZARD TESTING Part 1-40: Guidance for assessing the fire hazard of electrotechnical products Insulating liquids 1 Scope This international stand
49、ard provides guidance on the minimization of fire hazard arising from the use of electrical insulating liquids, with respect to: a) electrotechnical equipment and systems, b) people, building structures and their contents. This basic safety publication is intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 11and I
