1、Electrical insulation systems Procedures for thermal evaluationPart 31: Applications with a designed life of 5 000 h or lessBS EN 6185731:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61857-31 April 2017 ICS
2、29.080.30 English Version Electrical insulation systems - Procedures for thermal evaluation - Part 31: Applications with a designed life of 5 000 h or less (IEC 61857-31:2017) Systmes disolement lectrique - Modes opratoires pour lvaluation thermique - Partie 31 : Applications dure de vie nominale in
3、frieure 5 000 heures (IEC 61857-31:2017) Elektrische Isoliersysteme - Verfahren zur thermischen Bewertung - Teil 31: Anwendungen mit einer vorgesehenen Betriebsdauer von weniger als 5 000 h (IEC 61857-31:2017) This European Standard was approved by CENELEC on 2017-02-28. CENELEC members are bound to
4、 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 application to the CEN-CE
5、NELEC 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 Management Cent
6、re 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, Ireland, Ital
7、y, 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 Europisches Komi
8、tee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61857-31:2017 E National forewordThis British Standard is the UK implementation o
9、f EN 6185731:2017. It is identical to IEC 6185731:2017. The UK participation in its preparation was entrusted to Technical Committee GEL/112, Evaluation and qualification of electrical insulating materials and systems.A list of organizations represented on this committee can be obtained on request t
10、o 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 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 92400 2ICS 29.080.30Compliance with a British Stand
11、ard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 6185731:2017EUROPEAN STANDARD NORME EUROPENNE
12、 EUROPISCHE NORM EN 61857-31 April 2017 ICS 29.080.30 English Version Electrical insulation systems - Procedures for thermal evaluation - Part 31: Applications with a designed life of 5 000 h or less (IEC 61857-31:2017) Systmes disolement lectrique - Modes opratoires pour lvaluation thermique - Part
13、ie 31 : Applications dure de vie nominale infrieure 5 000 heures (IEC 61857-31:2017) Elektrische Isoliersysteme - Verfahren zur thermischen Bewertung - Teil 31: Anwendungen mit einer vorgesehenen Betriebsdauer von weniger als 5 000 h (IEC 61857-31:2017) This European Standard was approved by CENELEC
14、 on 2017-02-28. 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 references concerning such national standards
15、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 CENELEC member into its own language and
16、 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 Yugoslav Republic of Macedonia, France, Germ
17、any, 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 Electrotechnical Standardization Comit Europen de Nor
18、malisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61857-31:2017 E BS EN 6185731:2017EN
19、61857-31:2017 2 European foreword The text of document 112/356/CDV, future edition 1 of IEC 61857-31, prepared by IEC/TC 112 “Evaluation and qualification of electrical insulating materials and systems“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61857-31:2017. The f
20、ollowing dates are fixed: latest date by which the document has to beimplemented at national level bypublication of an identical nationalstandard or by endorsement(dop) 2017-11-28 latest date by which the nationalstandards conflicting with thedocument have to be withdrawn(dow) 2020-02-28 Attention i
21、s drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61857-31:2017 was approved by CENEL
22、EC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 61857 (series) NOTE Harmonized as EN 61857 (series). BS EN 6185731:2017EN 61857-31:2017 2 European foreword The text of document 112/356/C
23、DV, future edition 1 of IEC 61857-31, prepared by IEC/TC 112 “Evaluation and qualification of electrical insulating materials and systems“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61857-31:2017. The following dates are fixed: latest date by which the document has
24、to beimplemented at national level bypublication of an identical nationalstandard or by endorsement(dop) 2017-11-28 latest date by which the nationalstandards conflicting with thedocument have to be withdrawn(dow) 2020-02-28 Attention is drawn to the possibility that some of the elements of this doc
25、ument may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61857-31:2017 was approved by CENELEC as a European Standard without any modification. In the offic
26、ial version, for Bibliography, the following note has to be added for the standard indicated: IEC 61857 (series) NOTE Harmonized as EN 61857 (series). EN 61857-31:2017 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications The followi
27、ng documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an Int
28、ernational Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-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 60505 - Evalu
29、ation and qualification of electrical insulation systems EN 60505 - IEC 61857-1 - Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage EN 61857-1 - IEC 61857-21 - Electrical insulation systems - Procedures for thermal evaluation - Part 21: Sp
30、ecific requirements for general-purpose models - Wire-wound applications EN 61857-21 - IEC 61857-22 - Electrical insulation systems - Procedures for thermal evaluation - Part 22: Specific requirements for encapsulated-coil model - Wire-wound electrical insulation system (EIS) EN 61857-22 - IEC/TR 61
31、857-2 - Electrical insulation systems - Procedures for thermal evaluation - Part 2: Selection of the appropriate test method for evaluation and classification of electrical insulation systems - - BS EN 6185731:2017This page deliberately left blank 2 IEC 61857-31:2017 IEC 2017 CONTENTS FOREWORD . 3 I
32、NTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions 6 4 EIS evaluation . 7 5 Test objects . 7 6 Test procedures 7 6.1 Procedure A: Establishing a TE for applications with a designed life of 1 500 h or less: one-temperature ageing . 7 6.2 Procedure B: Establishing a TE rating f
33、or applications with a designed life of 5 000 h or less: one-temperature ageing . 8 6.3 Procedure C: Establishing a TE rating for applications with a designed life of 5 000 h or less: two-temperature ageing . 8 7 Data analysis . 8 7.1 Analysis Test Procedures A and B (See 6.1 and 6.2) . 8 7.2 Analys
34、is Test Procedure C (See 6.3) . 9 8 Test report . 9 Bibliography 10 2 IEC 61857-31:2017 IEC 2017 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions 6 4 EIS evaluation . 7 5 Test objects . 7 6 Test procedures 7 6.1 Procedure A: Establishing a TE for appl
35、ications with a designed life of 1 500 h or less: one-temperature ageing . 7 6.2 Procedure B: Establishing a TE rating for applications with a designed life of 5 000 h or less: one-temperature ageing . 8 6.3 Procedure C: Establishing a TE rating for applications with a designed life of 5 000 h or le
36、ss: two-temperature ageing . 8 7 Data analysis . 8 7.1 Analysis Test Procedures A and B (See 6.1 and 6.2) . 8 7.2 Analysis Test Procedure C (See 6.3) . 9 8 Test report . 9 Bibliography 10 BS EN 6185731:2017IEC 61857-31:2017 IEC 2017 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRICAL INSULATION
37、 SYSTEMS PROCEDURES FOR THERMAL EVALUATION Part 31: Applications with a designed life of 5 000 h or less FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The
38、object of IEC is to promote international co-operation on all questions concerning standardization 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 Specific
39、ations (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation 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 li
40、aising with the IEC also participate in this preparation. IEC collaborates closely with 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 expr
41、ess, as nearly as possible, an international consensus of opinion on the relevant subjects 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 Commit
42、tees in that sense. While all reasonable efforts are made to ensure that the technical 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 Nationa
43、l Committees undertake to apply IEC Publications transparently to the maximum extent possible 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 no
44、t provide any attestation of conformity. Independent certification bodies provide conformity 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 t
45、he latest edition of this publication. 7) No liability shall attach to IEC or its directors, 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 whatsoeve
46、r, whether direct or indirect, or for costs (including legal fees) and expenses arising 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 publication
47、s is indispensable for the correct application of this publication. 9) Attention is drawn 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
48、IEC 61857-31 has been prepared by IEC technical committee 112: Evaluation and qualification of electrical insulating materials and systems. The text of this International Standard is based on the following documents: CDV Report on voting 112/356/CDV 112/375/RVC Full information on the voting for the
49、 approval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. BS EN 6185731:2017IEC 61857-31:2017 IEC 2017 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRICAL INSULATION SYSTEMS PROCEDURES FOR THERMAL EVALUATION Part 31: Applications with a designed life of 5 000 h or less FOREWORD 1) The International Electrotechnical Commission (IEC
