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IEC_61000-2-1_EMC-2_Environment_-1-Description_of_the_environment.pdf

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1、TECHNICALREPORTIEC61000-2-1First edition1990-05 IEC 1990Copyright-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 Elect

2、rotechnical Commission 3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300Electromagnetic compatibility(EMC)Part 2:Environment Section 1:Description of the environment Electromagnetic environment for low-frequencyconducted disturbances and signallingin public power supply systemsCompatibilit l

3、ectromagntique(CEM)Partie 2:Environnement Section 1:Description de lenvironnement Environnement lectromagntique pour les perturbationsconduites basse frquence et la transmission de signauxsur les rseaux publics dalimentationReference numberIEC 61000-2-1:1990(E)IEC web site http:/www.iec.che-mail:inm

4、ailiec.chNumberingAs from the 1st January 1997 all IEC publications are issued with a designation inthe 60000 series.Consolidated publicationsConsolidated versions of some IEC publications including amendments areavailable.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to thebase pub

5、lication,the base publication incorporating amendment 1 and the basepublication incorporating amendments 1 and 2.Validity of this publicationThe technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relat

6、ing to the date of the reconfirmation of the publication is availablein the IEC catalogue.Information on the revision work,the issue of revised editions and amendments maybe obtained from IEC National Committees and from the following IEC sources:IEC BulletinIEC YearbookOn-line access*Catalogue of I

7、EC publicationsPublished yearly with regular updates(On-line access)*Terminology,graphical and letter symbolsFor general terminology,readers are referred to IEC 60050:InternationalElectrotechnical Vocabulary(IEV).For graphical symbols,and letter symbols and signs approved by the IEC forgeneral use,r

8、eaders are referred to publications IEC 60027:Letter symbols to beused in electrical technology,IEC 60417:Graphical symbols for use on equipment.Index,survey and compilation of the single sheets and IEC 60617:Graphicalsymbols for diagrams.*See web site address on title page.1000-2-1 IEC:1990(E)3 CON

9、TENTSPageFOREWORD.4INTRODUCTION .5Clause1 Scope.62 Normative references.63 Definitions.74 Purpose of specifying electromagnetic compatibility levels.85 Harmonics.96 Interharmonics.127 Voltage fluctuations.158 Voltage dips and short supply interruptions.179 Voltage unbalance.1910 Mains signalling.201

10、1 Power frequency variation.2212 D.C.components.23Figures.241000-2-1 IEC:1990(E)4 INTERNATIONAL ELECTROTECHNICAL COMMISSION_ELECTROMAGNETIC COMPATIBILITY(EMC)Part 2:EnvironmentSection 1:Description of the environment-Electromagnetic environment for low-frequencyconducted disturbances and signalling

11、in publicpower supply systemsFOREWORD1)The formal decisions or agreements of the IEC on technical matters,prepared by Technical Committees onwhich all the National Committees having a special interest therein are represented,express,as nearly aspossible,an international consensus of opinion on the s

12、ubjects dealt with.2)They have the form of recommendations for international use and they are accepted by the NationalCommittees in that sense.3)In order to promote international unification,the IEC expresses the wish that all National Committeesshould adopt the text of the IEC recommendation for th

13、eir national rules in so far as national conditions willpermit.Any divergence between the IEC recommendation and the corresponding national rules should,asfar as possible,be clearly indicated in the latter.This section of IEC 1000-2,which has the status of a technical report,has been preparedby IEC

14、Technical Committee No.77:Electromagnetic compatibility between electricalequipment including networks.The text of this section is based on the following documents:Full information on the voting for the approval of this section can be found in the VotingReports indicated in the above table.Six Month

15、s RuleReport on VotingTwo Months ProcedureReport on Voting77(CO)2677(CO)3077(CO)3277(CO)341000-2-1 IEC:1990(E)5 INTRODUCTION IEC 1000 is published in separate parts according to the following structure:Part 1:GeneralGeneral considerations(introduction,fundamental principles)Definitions,terminology P

16、art 2:Environment Description of the environment Classification of the environmentCompatibility levels Part 3:Limits Emission limitsImmunity limits(in so far as they do not fall under the responsibility of the productcommittees)Part 4:Testing and measurement techniques Measurement techniquesTesting techniques Part 5:Installation and mitigation guidelines Installation guidelinesMitigation methods and devices Part 9:Miscellaneous Each part is further subdivided into sections which can be published

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