1、 IEC 60695-8-2 Edition 1.0 2016-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Fire hazard testing Part 8-2: Heat release Summary and relevance of test methods Essais relatifs aux risques du feu Partie 8-2: Dgagement de chaleur Rsum et pertinence des mthodes dessais IEC 60695-8-2:2016-11(en-fr) BASI
2、C 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 this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, in
3、cluding photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address belo
4、w or your local IEC member National Committee for further information. Droits de reproduction rservs. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et
5、 les microfilms, sans laccord crit de lIEC ou du Comit national de lIEC du pays du demandeur. Si vous avez des questions sur le copyright de lIEC ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de lIEC de votre
6、 pays de rsidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Stand
7、ards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore
8、.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information on IEC International Standards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The
9、advanced search enables to find IEC publications by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just P
10、ublished details all new publications released. Available online and also once a month by email. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing 20 000 terms and definitions in English and French, with equivalent terms in 15 addi
11、tional languages. Also known as the International Electrotechnical Vocabulary (IEV) online. IEC Glossary - std.iec.ch/glossary 65 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have be
12、en collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. A propos de lIEC La Commission Electrot
13、echnique Internationale (IEC) est la premire organisation mondiale qui labore et publie des Normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications IEC Le contenu technique des publications IEC est constamment revu. Veuillez
14、vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue IEC - webstore.iec.ch/catalogue Application autonome pour consulter tous les renseignements bibliographiques sur les Normes internationales, Spcifications techniques, Rapports techniques
15、et autres documents de lIEC. Disponible pour PC, Mac OS, tablettes Android et iPad. Recherche de publications IEC - www.iec.ch/searchpub La recherche avance permet de trouver des publications IEC en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informatio
16、ns sur les projets et les publications remplaces ou retires. IEC Just Published - webstore.iec.ch/justpublished Restez inform sur les nouvelles publications IEC. Just Published dtaille les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.ele
17、ctropedia.org Le premier dictionnaire en ligne de termes lectroniques et lectriques. Il contient 20 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans 15 langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (IEV) en ligne. Glossaire
18、IEC - std.iec.ch/glossary 65 000 entres terminologiques lectrotechniques, en anglais et en franais, extraites des articles Termes et Dfinitions des publications IEC parues depuis 2002. Plus certaines entres antrieures extraites des publications des CE 37, 77, 86 et CISPR de lIEC. Service Clients - w
19、ebstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60695-8-2 Edition 1.0 2016-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Fire hazard testing Part 8-2: Heat release Summary and relevance of test methods
20、 Essais relatifs aux risques du feu Partie 8-2: Dgagement de chaleur Rsum et pertinence des mthodes dessais INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 13.220.40; 29.020 ISBN 978-2-8322-3750-2 BASIC SAFETY PUBLICATION PUBLICATION FONDAMENTALE DE SCURIT Re
21、gistered 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 distr
22、ibuteur agr. 2 IEC 60695-8-2:2016 IEC 2016 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions 7 4 Summary of test methods 11 4.1 General . 11 4.2 Measurement of complete combustion 11 4.2.1 The bomb calorimeter 11 4.2.2 Purpose and principle 11 4.2.3 Te
23、st specimen . 11 4.2.4 Test procedure 11 4.2.5 Repeatability and reproducibility 12 4.2.6 Relevance of test data . 12 4.3 Measurements of incomplete combustion 12 4.3.1 Cone calorimeter . 12 4.3.2 Microscale calorimetry . 13 4.3.3 The Ohio State University calorimeter 14 4.3.4 Fire propagation appar
24、atus (ISO 12136) 15 4.3.5 Single Burning Item (SBI) test 16 4.3.6 Vertical cable ladder tests . 17 4.3.7 Horizontal cable ladder test . 20 4.3.8 Open calorimetry fire tests . 22 5 Overview of test methods 22 Bibliography 24 Table 1 Summary and comparison of vertical cable ladder tests 20 Table 2 Ove
25、rview of heat release test methods 22 IEC 60695-8-2:2016 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIRE HAZARD TESTING Part 8-2: Heat release Summary and relevance of test methods FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardiza
26、tion 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 fields. To this end and in addition to other activities, IEC publishes Internati
27、onal 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 IEC National Committee interested in the subject dealt with may participate in
28、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 Standardization (ISO) in accordance with conditions determined by agreement between the
29、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 representation from all interested IEC National Committees. 3) IEC Publications have
30、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 cannot be held responsible for the way in which they are used or for any misint
31、erpretation 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 publications. Any divergence between any IEC Publication and the corresponding nationa
32、l 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, access to IEC marks of conformity. IEC is not responsible for any services car
33、ried 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 individual experts and members of its technical committees and IEC National Co
34、mmittees 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 upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn
35、 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 elements of this IEC Publication may be the subject of patent rights. IEC shall not b
36、e held responsible for identifying any or all such patent rights. International Standard IEC 60695-8-2 has been prepared by IEC technical committee 89: Fire hazard testing. This first edition cancels and replaces IEC TR 60695-8-2 published in 2008. This edition constitutes a technical revision. The
37、text of this International Standard is based on the following documents: FDIS Report on voting 89/1343/FDIS 89/1349/RVD Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in
38、accordance with the ISO/IEC Directives, Part 2. 4 IEC 60695-8-2:2016 IEC 2016 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 w
39、ebsite. This International Standard is to be used in conjunction with IEC 60695-8-1. IEC 60695-8 consists of the following parts: Part 8-1: Heat release General guidance Part 8-2: Heat release Summary and relevance of test methods The committee has decided that the contents of this document will rem
40、ain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IEC 60695-8-2:2016 IEC 2016 5 INTRODUCTION In the desi
41、gn of an 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 equipment design, as well as the choice of materials, is to reduce the risk of fire to a tolerable level even in the event
42、 of reasonably foreseeable (mis)use, malfunction or failure. IEC 60695-1-10, IEC 60695-1-11, and IEC 60695-1-12 provide guidance on how this is to be accomplished. Fires involving electrotechnical products can also be initiated from external non-electrical sources. Considerations of this nature are
43、dealt with in an overall fire hazard assessment. The aim of the IEC 60695 series of standards is to save lives and property by reducing the number of fires or reducing the consequences of the fire. This can be accomplished by: trying to prevent ignition caused by an electrically energised component
44、part and, in the event of ignition, to confine any resulting fire within the bounds of the enclosure of the electrotechnical product; trying to minimise flame spread beyond the products enclosure and to minimise the harmful effects of fire effluents including heat, smoke, and toxic or corrosive comb
45、ustion products. Fires are responsible for creating hazards to life and property as a result of the generation of heat (thermal hazard), toxic and/or corrosive compounds and obscuration of vision due to smoke. The severity of a fire increases as the heat released increases, possibly leading to a fla
46、shover fire. One of the most important measurements in fire testing is the measurement of heat release and it is used as an important factor in the determination of fire hazard; it is also used as one of the parameters in fire safety engineering calculations. The measurement and use of heat release
47、data, together with other fire test data, can be used to reduce the likelihood of (or the effects of) fire, even in the event of foreseeable abnormal use, malfunction or failure of electrotechnical products. When a material is heated by some external source, fire effluent can be generated and can fo
48、rm a mixture with air that can ignite and initiate a fire. The heat released in the process is carried away by the fire effluent-air mixture, radiatively lost or transferred back to the solid material, to generate further pyrolysis products, thus continuing the process. Heat may also be transferred
49、to other nearby products, which may burn, and then release additional heat and fire effluent. The rate at which thermal energy is released in a fire is defined as the heat release rate. Heat release rate is important because of its influence on flame spread and on the initiation of secondary fires. Other characteristics are also important, such as ignitability, flame spread and other side effects of the fire (se
