IEC 60216-1 2025 电气绝缘材料 耐热性 第1部分：老化程序和试验结果评价.pdf

IEC 60216-1 Edition 7.0 2025-12 INTERNATIONAL STANDARD Electrical insulating materials – Thermal endurance properties – Part 1: Ageing procedures and evaluation of test results ICS 17.220.99; 29.035.01 ISBN 978-2-8327-0931-3 IEC 60216-1:2025-12 ⚠ THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright © 2025 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, including photocopying and microfilm, without permission in writing from either IEC or IEC’s 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 below or your local IEC member National Committee for further information. IEC Secretariat 3, rue de Varembé CH-1211 Geneva 20 Switzerland Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 info@iec.ch www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards 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 corrigendum or an amendment might have been published. IEC publications search – webstore.iec.ch/searchform The advanced search enables you 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 It also gives information on projects, replaced and withdrawn publications.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 Published details all new publications released. Available online and once a month by email. IEC Customer Service Centre – webstore.iec.ch/csc If you wish to give us your feedback or have any questions on customer service, please contact the Customer Service Centre: sales@iec.ch. IEC Products & Services Portal – products.iec.ch Discover our powerful search engine and read freely all the publications previews. With a subscription you will always have access to up to date content tailored to your needs. Electropedia – www.electropedia.org The world’s leading online dictionary on electrotechnology, containing more than 22 500 terminological entries in English and French, with equivalent terms in 22 additional languages. Also known as the International Electrotechnical Vocabulary (IEV) online. Warning! Make sure that you obtained this publication from an authorized distributor. IEC 60216-1:2025 © IEC 2025 CONTENTS FOREWORD ……………………………………………………. 3 INTRODUCTION ………………………………………………… 5 1 Scope …………………………………………………….. 6 2 Normative references ……………………………………….. 6 3 Terms, definitions, symbols and abbreviated terms ……………… 6 3.1 Terms and definitions ………………………………….. 6 3.2 Symbols and abbreviated terms …………………………… 8 4 Synopsis of procedures – Full procedures ……………………… 8 5 Detailed experimental procedures …………………………….. 9 5.1 Selection of test procedures ……………………………. 9 5.1.1 General considerations …………………………….. 9 5.1.2 Selection of material ……………………………… 9 5.1.3 Selection of test properties for TI …………………. 9 5.1.4 Determination of TI for times other than 20 000 h ……. 10 5.2 Selection of end-points ……………………………….. 10 5.3 Preparation and number of test specimens …………………. 10 5.3.1 Preparation ………………………………………. 10 5.3.2 Number of specimens ……………………………….. 11 5.4 Establishment of initial property value …………………. 11 5.5 Exposure temperatures and times ………………………… 12 5.6 Ageing ovens …………………………………………. 12 5.7 Environmental conditions ………………………………. 12 5.7.1 General ………………………………………….. 12 5.7.2 Atmospheric conditions during ageing ………………… 13 5.7.3 Conditions for property measurement …………………. 13 5.8 Procedure for ageing ………………………………….. 13 5.8.1 General ………………………………………….. 13 5.8.2 Procedure using a non-destructive test ………………. 13 5.8.3 Procedure using a proof test ……………………….. 14 5.8.4 Procedure using a destructive test ………………….. 14 6 Evaluation ………………………………………………… 14 6.1 Numerical analysis of test data ………………………… 15 6.2 Thermal endurance characteristics and formats ……………. 15 6.3 Times to end-point, x- and y-values …………………….. 16 6.3.1 General ………………………………………….. 16 6.3.2 Non-destructive tests ……………………………… 16 6.3.3 Proof tests ………………………………………. 17 6.3.4 Destructive tests …………………………………. 17 6.4 Means and variances …………………………………… 19 6.4.1 General ………………………………………….. 19 6.4.2 Complete data …………………………………….. 19 6.4.3 Incomplete (censored) data …………………………. 20 6.5 General means and variances and regression analysis ………. 20 6.6 Thickness dependence ………………………………….. 20 6.7 Statistical tests and data requirements …………………. 20 6.7.1 General ………………………………………….. 20 6.7.2 Data of all types …………………………………. 20 1