IEC_TR_61000-1-4-2005.pdf

TECHNICAL REPORT IEC TR 61000-1-4 First edition2005-05 Electromagnetic compatibility(EMC)Part 1-4:General Historical rationale for the limitation of power-frequency conducted harmonic current emissions from equipment,in the frequency range up to 2 kHz Reference number IEC/TR 61000-1-4:2005(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editions The 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,the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication,as well as the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publications The on-line catalogue on the IEC web site(www.iec.ch/searchpub)enables you to search by a variety of criteria including text searches,technical committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.TECHNICAL REPORT IECTR 61000-1-4 First edition2005-05 Electromagnetic compatibility(EMC)Part 1-4:General Historical rationale for the limitation of power-frequency conducted harmonic current emissions from equipment,in the frequency range up to 2 kHz PRICE CODE IEC 2005 Copyright-all rights reserved No part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,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.ch X For price,see current catalogueCommission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 TR 61000-1-4 IEC:2005(E)CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Definitions.8 4 General appraisal.8 5 Acceptable provisions in standards related to regulatory legislation.9 6 History of IEC 61000-3-2 and its predecessors.10 6.1 Before 1960.10 6.2 1960 to 1975.10 6.3 1975 to 1982.11 6.4 1982 to 1995.11 6.5 1995 to 2000.13 6.6 The Millennium Amendment.14 6.7 Future development of IEC 61000-3-2.14 7 History of IEC 61000-3-12 and its predecessor.14 7.1 1989 to 1998.14 7.2 After 1998.15 8 Economic considerations taken into account in setting limits in IEC 61000-3-2 before publication in 1995,and before the finalization of the text of the Millennium Amendment.15 Annex A(informative)Compatibility level and compensation factor.16 Annex B(informative)Comparison of Class A limits and the harmonic spectra of phase-controlled dimmers of incandescent lamps at 90 firing angle.20 Annex C(informative)Comparison of Class C(Table 2 of IEC 61000-3-2)limits and the harmonic spectrum of a discharge lamp with inductive ballast.21 Annex D(informative)Comparison of Class D limits and the harmonic spectra of capacitor-filtered single-phase rectifiers with 35 and 65 conduction angles.22 Annex E(informative)Economic considerations taken into account in setting limits,before finalization of the text of the Millennium Amendment to IEC 61000-3-2.23 Annex F(Informative)Concept plan for the full revision of IEC 61000-3-2.25 Annex G(informative)Derivation of the limits in IEC 61000-3-12.27 Annex H(informative)Explanation of the reasons for using the concepts of total harmonic distortion(THD)and partial weighted harmonic distortion(PWHD).39 Bibliography.41 Figure 1 Diagram showing compatibility level in relation to disturbance and