1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Test procedure for thermal endurance of insulating resins and varnishes for impregnation purposes Electric breakdown methods (IEC 60370:2017)BS EN IEC 60370:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IEC 6
2、0370 March 2018 ICS 29.035.01 Supersedes HD 570 S1:1990 English Version Test procedure for thermal endurance of insulating resins and varnishes for impregnation purposes - Electric breakdown methods (IEC 60370:2017) Mthode dessai pour lvaluation de lendurance thermique des rsines et vernis isolants
3、dimprgnation - Mthodes de claquage lectrique (IEC 60370:2017) Prfverfahren zur Beurteilung des thermischen Langzeitverhaltens von Isolierharzen und -lacken fr Imprgnierungen - Elektrische Durchschlagmethoden (IEC 60370:2017) This European Standard was approved by CENELEC on 2018-01-17. CENELEC membe
4、rs are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on applicatio
5、n to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC
6、Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland
7、 Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique E
8、uropisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN IEC 60370:2018 E National forewordThis British Standard is the
9、 UK implementation of EN IEC 60370:2018. It is identical to IEC 60370:2017. It supersedes BS 7831:1995, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee GEL/15, Solid electrical insulating materials.A list of organizations represented on this committee
10、can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 91698 4ICS 29.035.01; 2
11、9.035.99Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN IEC
12、60370:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IEC 60370 March 2018 ICS 29.035.01 Supersedes HD 570 S1:1990 English Version Test procedure for thermal endurance of insulating resins and varnishes for impregnation purposes - Electric breakdown methods (IEC 60370:2017) Mthode dessai po
13、ur lvaluation de lendurance thermique des rsines et vernis isolants dimprgnation - Mthodes de claquage lectrique (IEC 60370:2017) Prfverfahren zur Beurteilung des thermischen Langzeitverhaltens von Isolierharzen und -lacken fr Imprgnierungen - Elektrische Durchschlagmethoden (IEC 60370:2017) This Eu
14、ropean Standard was approved by CENELEC on 2018-01-17. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical referen
15、ces concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a C
16、ENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugos
17、lav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnic
18、al Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. N
19、o. EN IEC 60370:2018 E BS EN IEC 60370:2018EN IEC 60370:2018 (E) 2 European foreword The text of document 15/812/FDIS, future edition 2 of IEC 60370, prepared by IEC/TC 15 “Solid electrical insulating materials“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 60370:2
20、018. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2018-10-17 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2021-
21、01-17 This document supersedes HD 570 S1:1990. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International S
22、tandard IEC 60370:2017 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60455-2 NOTE Harmonized as EN 60455-2. IEC 60464-2 NOTE Harmonized as EN 60464-2. BS EN IEC
23、 60370:2018EN IEC 60370:2018 (E) 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For
24、 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-
25、to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60212 - Standard conditions for use prior to and during the testing of solid electrical insulating materials EN 60212 - IEC 60216 series
26、Electrical insulating materials - Thermal endurance properties EN 60216 series IEC 60216-4-1 - Electrical insulating materials - Thermal endurance properties - Part 4-1: Ageing ovens - Single-chamber ovens EN 60216-4-1 - IEC 60216-4-2 - Electrical insulating materials - Thermal endurance properties
27、 Part 4-2: Ageing ovens - Precision ovens for use up to 300 C EN 60216-4-2 - IEC 60216-4-3 - Electrical insulating materials - Thermal endurance properties - Part 4-3: Ageing ovens - Multi-chamber ovens EN 60216-4-3 - IEC 60243-1 - Electric strength of insulating materials - Test methods - Part 1:
28、Tests at power frequencies EN 60243-1 - IEC 60455-3-5 - Resin based reactive compounds used for electrical insulation - Part 3: Specifications for individual materials - Sheet 5: Unsaturated polyester based impregnating resins EN 60455-3-5 - IEC 60464-3-2 - Varnishes used for electrical insulation -
29、 Part 3: Specifications for individual materials - Sheet 2: Hot curing impregnating varnishes EN 60464-3-2 - IEC 60641-3-1 - Pressboard and presspaper for electrical purposes - Part 3: Specifications for individual materials - Sheet 1: Requirements for pressboard, types B.0.1, B.0.3, B.2.1, B.2.3, B
30、3.1, B.3.3, B.4.1, B.4.3, B.5.1, B.5.3 and B.6.1 EN 60641-3-1 - ISO 2078 - Textile glass - Yarns - Designation EN ISO 2078 - ISO 2113 - Reinforcement fibres - Woven fabrics - Basis for a specification - - BS EN IEC 60370:2018 2 IEC 60370:2017 IEC 2017 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope
31、6 2 Normative references 6 3 Terms and definitions 7 4 Methods of test 7 4.1 General . 7 4.2 Method 1 Curved electrode system 8 4.2.1 Specimen 8 4.2.2 Impregnation process 8 4.2.3 Curved electrode system . 9 4.2.4 Ageing ovens and ageing temperatures . 9 4.2.5 Test procedure 10 4.3 Method 2 Ball to
32、plate method 12 4.3.1 Specimen 12 4.3.2 Impregnation process 12 4.3.3 Electrode system . 13 4.3.4 Ageing ovens and ageing temperatures . 13 4.3.5 Test procedure 14 5 Report . 16 Bibliography 17 Figure 1 Curved electrode fixture . 9 Figure 2 Electric strength Ageing time Graph . 11 Figure 3 Thermal e
33、ndurance graph 12 Figure 4 Breakdown voltage Ageing time Graph . 15 Figure 5 Thermal endurance graph 15 BS EN IEC 60370:2018IEC 60370:2017 IEC 2017 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ TEST PROCEDURE FOR THERMAL ENDURANCE OF INSULATING RESINS AND VARNISHES FOR IMPREGNATION PURPOSES ELECTRIC
34、 BREAKDOWN METHODS FOREWORD 1) The International Electrotechnical 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 sta
35、ndardization in the electrical and electronic fields. To this end 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 prepara
36、tion is entrusted to technical committees; any IEC National Committee 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 wit
37、h the International Organization for Standardization (ISO) in accordance 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 subj
38、ects since each technical committee has representation from all interested 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
39、 content of IEC Publications is accurate, IEC cannot be held responsible 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 p
40、ossible in their national and regional publications. Any divergence 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 conf
41、ormity assessment services and, in some areas, access to IEC marks 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 dire
42、ctors, employees, servants or agents including individual experts 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 arisin
43、g out of the publication, use of, or reliance upon, this IEC Publication 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 dr
44、awn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60370 has been prepared by IEC technical committee 15: Solid electrical insulating
45、 materials. This second edition cancels and replaces the first edition published in 1971. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) this document is now describing two methods, the existin
46、g one, following ASTM D1932 and new a method following the requirements of IEC 60455-2 and IEC 60464-2; b) the theoretical background and way of calculation were removed, and replaced by reference to IEC 60216; c) the layout and numbering system was updated; d) for better understanding and illustrat
47、ion purposes examples were added. BS EN IEC 60370:2018 4 IEC 60370:2017 IEC 2017 The text of this International Standard is based on the following documents: FDIS Report on voting 15/812/FDIS 15/819/RVD Full information on the voting for the approval of this International Standard can be found in th
48、e report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in
49、 the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. BS EN IEC 60370:2018IEC 60370:2017 IEC 201
