IEC 60243-3-2013 Electric strength of insulating materials - Test methods - Part 3 Additional requirements for 1 2 50 μs impulse tests《绝缘材料的耐电强度 试验方法 第3部分 1 2 50 s冲击试验的补充要求》.pdf

《IEC 60243-3-2013 Electric strength of insulating materials - Test methods - Part 3 Additional requirements for 1 2 50 μs impulse tests《绝缘材料的耐电强度 试验方法 第3部分 1 2 50 s冲击试验的补充要求》.pdf》由会员分享，可在线阅读，更多相关《IEC 60243-3-2013 Electric strength of insulating materials - Test methods - Part 3 Additional requirements for 1 2 50 μs impulse tests《绝缘材料的耐电强度 试验方法 第3部分 1 2 50 s冲击试验的补充要求》.pdf（22页珍藏版）》请在麦多课文档分享上搜索。

1、 IEC 60243-3 Edition 3.0 2013-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric strength of insulating materials Test methods Part 3: Additional requirements for 1,2/50 s impulse tests Rigidit dilectrique des matriaux isolants Mthodes dessai Partie 3: Exigences complmentaires pour les essais a

2、ux ondes de choc 1,2/50 s IEC60243-3:2013 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 in any form or by any means, electronic or mechanical, including photoc

3、opying 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 below or your loca

4、l 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 les microfilm

5、s, 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 le Comit national de la CEI de votre pays

6、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 Standards f

7、or 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. Useful links: IEC publications

8、 search - www.iec.ch/searchpub 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 d

9、ate on all new IEC publications. Just Published details all new publications released. Available on-line and also once a month by email. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in En

10、glish and French, with equivalent terms in additional languages. Also known as the International Electrotechnical Vocabulary (IEV) on-line. 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 S

11、ervice Centre: csciec.ch. A propos de la CEI La Commission Electrotechnique Internationale (CEI) 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 CEI Le con

12、tenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Liens utiles: Recherche de publications CEI - www.iec.ch/searchpub La recherche avance vous permet de trouver des publicatio

13、ns CEI en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informations sur les projets et les publications remplaces ou retires. Just Published CEI - webstore.iec.ch/justpublished Restez inform sur les nouvelles publications de la CEI. Just Published dtaill

14、e les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.electropedia.org Le premier dictionnaire en ligne au monde de termes lectroniques et lectriques. Il contient plus de 30 000 termes et dfinitions en anglais et en franais, ainsi que les t

15、ermes quivalents dans les langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (VEI) en ligne. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60243-3 Ed

16、ition 3.0 2013-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric strength of insulating materials Test methods Part 3: Additional requirements for 1,2/50 s impulse tests Rigidit dilectrique des matriaux isolants Mthodes dessai Partie 3: Exigences complmentaires pour les essais aux ondes de cho

17、c 1,2/50 s INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE J ICS 17.220.99; 29.035.01 PRICE CODE CODE PRIX ISBN 978-2-8322-1201-1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale W

18、arning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 60243-3 IEC:2013 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references . 5 3 Terms and definitions 5 4 Significance

19、 of the test . 6 5 Electrodes and test specimens . 7 6 Conditioning before tests . 7 7 Surrounding medium 7 8 Electrical apparatus . 7 8.1 Voltage source . 7 8.2 Voltage measurement 8 9 Procedure 8 10 Application of voltage . 8 10.1 Breakdown test 8 10.2 Proof tests . 8 11 Criterion of breakdown . 9

20、 12 Number of tests . 9 13 Report . 9 Figure 1 Full impulse-voltage wave . 6 60243-3 IEC:2013 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRIC STRENGTH OF INSULATING MATERIALS TEST METHODS Part 3: Additional requirements for 1,2/50 s impulse tests FOREWORD 1) The International Electrotechnical

21、 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 on all questions concerning standardization in the electrical and electronic fields. To this end

22、 and in addition to other activities, IEC publishes International 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 Commi

23、ttee interested in the subject dealt with may participate in 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 acc

24、ordance with conditions determined by agreement between the 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 i

25、nterested IEC National Committees. 3) IEC Publications have 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 resp

26、onsible for the way in which they are used or for any misinterpretation 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 divergen

27、ce between any IEC Publication and the corresponding national 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 mark

28、s 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 shall attach to IEC or its directors, employees, servants or agents including individual experts

29、 and members of its technical committees and IEC National Committees 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 Publ

30、ication or any other IEC Publications. 8) Attention is drawn 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 Publ

31、ication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60243-3 has been prepared by technical committee 112: Evaluation and qualification of electrical insulation materials and systems. This third editi

32、on cancels and replaces the second edition, published in 2001, and constitutes an editorial revision. This part of IEC 60243 shall be read in conjunction with IEC 60243-1. The text of this standard is based on the following documents: CDV Report on voting 112/246/CDV 112/267A/RVC 4 60243-3 IEC:2013

33、Full information on the voting for the approval of this standard can be found in the 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 parts in the IEC 60243 series, published under the general title Elec

34、tric strength of insulating materials Test methods, can be found on the IEC website. The committee has decided that the contents of this publication 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 publicat

35、ion. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 60243-3 IEC:2013 5 ELECTRIC STRENGTH OF INSULATING MATERIALS TEST METHODS Part 3: Additional requirements for 1,2/50 s impulse tests 1 Scope This part of IEC 60243 gives requirements additio

36、nal to those in IEC 60243-1 for the determination of the electric strength of solid insulating materials under 1,2/50 s impulse voltage stress. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.

37、For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60243-1:2013, Electric strength of insulating materials Test methods Part 1: Tests at power frequencies 3 Terms and definitions For the

38、purposes of this document, the terms and definitions given in IEC 60243-1, together with the following, apply. 3.1 full impulse-voltage wave aperiodic transient voltage that rises rapidly to a maximum value, then falls less rapidly to zero (see Figure 1) 3.2 peak value (of an impulse-voltage wave) U

39、Pmaximum value of voltage 3.3 virtual peak value (of an impulse-voltage wave) U1value derived from a recording of an impulse-voltage wave on which high-frequency oscillations, or overshoot of a limited magnitude, may be present 3.4 virtual origin (of an impulse-voltage wave) O1point of intersection

40、O1with the line of zero voltage of a line drawn through the points of 0,3 and 0,9 times the virtual peak value on the front of an impulse-voltage wave (see Figure 1) 6 60243-3 IEC:2013 3.5 virtual front time (of an impulse-voltage wave) t1equal to 1,67 times the interval tfbetween the instants when

41、the voltage is 0,3 and 0,9 times the peak value (tf, Figure 1) 3.6 virtual time to half-value t2time interval t2between the virtual origin O1and the instant on the tail when the voltage has decreased to half the peak value 3.7 impulse breakdown voltage nominal peak voltage that the wave causing brea

42、kdown would have reached if breakdown had not occurred 3.8 withstand voltage highest nominal peak voltage of a set of three impulses which did not cause breakdown tft1t2t1,00,90,50,30O1t1= 1,67 tfBAU/UpIEC 1085/01Figure 1 Full impulse-voltage wave 4 Significance of the test In addition to the inform

43、ation of Clause 4 of IEC 60243-1:2013, the following points are of importance in connection with impulse-voltage tests. High-voltage equipment may be subjected to transient voltage stresses resulting from such causes as nearby lightning strokes. This is particularly true of apparatus such as transfo

44、rmers and switchgears used in electrical power transmission and distribution systems. The ability of insulating materials to withstand these transient voltages is important in establishing the reliability of apparatus insulated with these materials. Transient voltages caused by lightning may be of e

45、ither positive or negative polarity. In a symmetrical field between identical electrodes, the polarity has no effect on the electric 60243-3 IEC:2013 7 strength. However, with dissimilar electrodes, there may be a pronounced polarity effect. When asymmetrical electrodes are used for testing material

46、s with which the tester has no previous experience or knowledge, it is recommended that comparative tests be made with both directions of polarity. The standard wave shape is a 1,2/50 s wave, reaching peak voltage in approximately 1,2 s, and decaying to 50 % of peak value in approximately 50 s after

47、 the beginning of the wave. This wave is intended to simulate a lightning stroke that may strike a system without breakdown. NOTE If the object being tested has appreciable inductive characteristics, it may be difficult or impossible to attain the specified wave shape with less than 5 % oscillations

48、, as prescribed in 8.2. However, the procedures given in this standard are expected ordinarily to be applied to configurations of test specimens and electrodes which are primarily capacitive. Testing of more complex configurations, such as between coils of completed apparatus or models of such appar

49、atus, should be performed in accordance with the specifications for that apparatus. Because of the short time involved, dielectric heating, other thermal effects and the influence of injected space-charges may be reduced during impulse testing of most materials. Thus, impulse tests usually give higher values than the peak voltage of short-term ac tests. From comparisons of the impulse electric strength with t