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-
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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