1、 IEC/TR 62662Edition 1.0 2010-08TECHNICAL REPORT Guidance for production,testing and diagnostics of polymer insulators with respect to brittle fracture of core materials IEC/TR 62662:2010(E)colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-
2、2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or b
3、y any means,electronic or mechanical,including 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 publica
4、tion,please contact the address below 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 mcan
5、ique,y compris la photocopie et les microfilms,sans laccord crit de la CEI ou du Comit national de la CEI du pays du demandeur.Si vous avez des questions sur le copyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette publication,utilisez les coordonnes ci-aprs ou contactez
6、le Comit national de la CEI de votre pays de rsidence.IEC Central Office 3,rue de Varemb CH-1211 Geneva 20 Switzerland Email:inmailiec.ch Web:www.iec.ch 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
7、 edition,a corrigenda or an amendment might have been published.?Catalogue of IEC publications:www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,withdrawn and replaced public
8、ations.?IEC Just Published:www.iec.ch/online_news/justpub Stay up to date on all new IEC publications.Just Published details twice a month all new publications released.Available on-line and also by email.?Electropedia:www.electropedia.org The worlds leading online dictionary of electronic and elect
9、rical terms containing more than 20 000 terms and definitions in English and French,with equivalent terms in additional languages.Also known as the International Electrotechnical Vocabulary online.?Customer Service Centre:www.iec.ch/webstore/custserv If you wish to give us your feedback on this publ
10、ication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or
11、distribution is permitted.Uncontrolled when printed.IEC/TR 62662Edition 1.0 2010-08TECHNICAL REPORT Guidance for production,testing and diagnostics of polymer insulators with respect to brittle fracture of core materials INTERNATIONAL ELECTROTECHNICAL COMMISSION QICS 29.080.10 PRICE CODEISBN 978-2-8
12、8912-172-4 Registered trademark of the International Electrotechnical Commission colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 TR 626
13、62 IEC:2010(E)CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 Description of brittle fracture.7 5 Identification of brittle fracture.8 6 Failure mechanisms.8 6.1 Description of identified failure mechanisms.8 6.2 Mechanism M1 Acid generated by electr
14、ical activity.8 6.3 Mechanism M2 Acid ingress from environment.9 6.4 Mechanism M3 Acid generated inside the core.10 7 Risk assessment.10 7.1 FMEA approach.10 7.2 Results.11 7.3 Discussions.13 8 Guidance for material selection and production.13 8.1 Rod materials and production process.13 8.1.1 Fibreg
15、lass.13 8.1.2 Resins.14 8.1.3 Rod production.14 8.2 Housing and sealing.14 9 Preventive methods.15 9.1 Sealing.15 9.2 Corona rings.15 9.3 Material selection.16 9.4 Housing quality.16 9.5 Handling,transportation and storage.16 Bibliography.17 Figure 1 Typical brittle fracture.7 Table 1 Risk potential
16、 number(RPN)and standardized risk potential of brittle fracture failure modes.11 Table 2 Risk assessment of the identified brittle fracture failure modes.11 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.TR 62662 IEC:2010(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ GUIDANCE FOR PRODUCTION,TESTING AND DIAGNOSTICS OF POLYMER INSULATORS WITH
