1、TECHNICALREPORTIEC TR 60664-2-2First edition2002-01Insulation coordination for equipmentwithin low-voltage systems Part 2-2:Interface considerations Application guideReference numberIEC/TR 60664-2-2:2002(E)Publication numberingAs from 1 January 1997 all IEC publications are issued with a designation
2、 in the60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editionsThe IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,thebase publication incorporating amendment 1 and
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4、 available in the IEC Catalogue ofpublications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertakenby the technical committee which has prepared this publication,as well as the listof publications issued,is al
5、so available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publicationsThe on-line catalogue on the IEC web site(www.iec.ch/catlg-e.htm)enablesyou to search by a variety of criteria including text searches,technicalcommittees and date of publication.On-line information is also availabl
6、e onrecently issued publications,withdrawn and replaced publications,as well ascorrigenda.IEC Just PublishedThis summary of recently issued publications(www.iec.ch/JP.htm)is alsoavailable by email.Please contact the Customer Service Centre(see below)forfurther information.Customer Service CentreIf y
7、ou have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.chTel:+41 22 919 02 11Fax:+41 22 919 03 00TECHNICALREPORTIECTR 60664-2-2First edition2002-01Insulation coordination for equipmentwithin low-voltage systems Part 2-
8、2:Interface considerations Application guidePRICE CODE IEC 2002 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and microfilm,without permission in writing from the publisher.Internation
9、al Electrotechnical Commission3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300e-mail:inmailiec.ch IEC web site http:/www.iec.chMFor price,see current catalogue Commission Electrotechnique Internationale International Electrotechnical Commission 2 TR 60664-2-2 IEC:2002(E)CONTENTSFOREWORD.3IN
10、TRODUCTION.51Scope.62Reference documents.63Definitions.74Consideration of overvoltage categories.75Consideration on the use of protective control.75.1General.75.2Recapitulation on lightning overvoltages.86Observations on surge overvoltages and failure rates.96.1General.96.2Using field failure data.9
11、6.3Preventing permanent damage.107Principles of coordination between SPDs and with equipment to be protected(refer also to IEC 61312-3).118Equipment for systems,installations and equipment operation under conditionsof inherent or protective control.118.1Specific protection for sections of systems or
12、 installations.118.2Specific protection within equipment.11Bibliography.12TR 60664-2-2 IEC:2002(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION_INSULATION COORDINATION FOR EQUIPMENTWITHIN LOW-VOLTAGE SYSTEMS Part 2-2:Interface considerations Application guideFOREWORD1)The IEC(International Electrotech
13、nical Commission)is a worldwide organization for standardization comprisingall national electrotechnical committees(IEC National Committees).The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields.Tothis end an
14、d in addition to other activities,the IEC publishes International Standards.Their preparation isentrusted to technical committees;any IEC National Committee interested in the subject dealt with mayparticipate in this preparatory work.International,governmental and non-governmental organizations liai
15、singwith the IEC also participate in this preparation.The IEC collaborates closely with the InternationalOrganization for Standardization(ISO)in accordance with conditions determined by agreement between thetwo organizations.2)The formal decisions or agreements of the IEC on technical matters expres
16、s,as nearly as possible,aninternational consensus of opinion on the relevant subjects since each technical committee has representationfrom all interested National Committees.3)The documents produced have the form of recommendations for international use and are published in the formof standards,technical specifications,technical reports or guides and they are accepted by the NationalCommittees in that sense.4)In order to promote international unification,IEC National Committees undertake to app
