IEC_TR_61000-5-6-2002.pdf

TECHNICALREPORTIEC TR 61000-5-6First edition2002-06Electromagnetic compatibility(EMC)Part 5-6:Installation and mitigation guidelines Mitigation of external EM influencesCompatibilit lectromagntique(CEM)Partie 5-6:Guides dinstallation et dattnuation Attnuation des influences lectromagntiques externesReference numberIEC/TR 61000-5-6:2002(E)PUBLICATION FONDAMENTALE EN CEMBASIC EMC PUBLICATIONLICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numberingAs from 1 January 1997 all IEC publications are issued with a designation 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 the base publication incorporatingamendments 1 and 2.Further information on IEC publicationsThe technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating tothis publication,including its validity,is 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 also 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and date of publication.On-line information is also available onrecently issued publications,withdrawn and replaced publications,as well ascorrigenda.IEC Just PublishedThis summary of recently issued publications(www.iec.ch/JP.htm)is alsoavailable by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 you 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 00LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.TECHNICALREPORTIECTR 61000-5-6First edition2002-06Electromagnetic compatibility(EMC)Part 5-6:Installation and mitigation guidelines Mitigation of external EM influencesCompatibilit lectromagntique(CEM)Partie 5-6:Guides dinstallation et dattnuation Attnuation des influences lectromagntiques externesPRICE 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.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.chXFor price,see current catalogueCommission Electrotechnique InternationaleInternational Electrotechnical Commission PUBLICATION FONDAMENTALE EN CEMBASIC EMC PUBLICATIONLICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 TR 61000-5-6 IEC:2002(E)CONTENTSFOREWORD.3INTRODUCTION.51Scope and general considerations.61.1Scope.61.2General considerations.62Reference documents.83Terms,definitions and acronyms.104Mitigation of radiated and conducted disturbances.134.1Topological concepts.134.2Mitigation needs.144.3The general concept of enclosure.154.4Interactions at the enclosure boundary.165Shielding.165.1General.165.2Classification of protection zones.185.3Design principles for screening.195.4Implementation of screening.216Filters.266.1General.266.2Fundamental filter characteristics.276.3Functional tasks.296.4Additional filtering concerns.306.5Selection criteria.306.6Filter installation.336.7Filter testing.367Decoupling devices.377.1Isolation transformers.377.2Motor-generator sets.397.3Engine generators.407.4Uninterruptible power supplies(UPS).407.5Optical links.418Surge-protective devices.418.1General.418.2Direct equipment protection.428.3Installation of multiple SPDs.438.4Side-effects of uncoordinated cascades.448.5Typical protective devices.44Bibliography.45LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.TR 61000-5-6 IEC:2002(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION_ELECTROMAGNETIC COMPATIBILITY(EMC)Part 5-6:Installation and mitigation guidelines Mitigation of external EM influencesFOREWORD1)The IEC(International Electrotechnical Commission)is a worldwide organization for standardization comprisingall national electrotechnical committees(IEC National Committees).The object of the IEC is to promoteinternational co-operation o