1、INTERNATIONALSTANDARDIEC61000-3-8First edition1997-08 IEC 1997Copyright-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
2、 Electrotechnical Commission 3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300Electromagnetic compatibility(EMC)Part 3:Limits Section 8:Signalling on low-voltage electricalinstallation Emission levels,frequency bandsand electromagnetic disturbance levelsCompatibilit lectromagntique(CEM)Parti
3、e 3:Limites Section 8:Transmission de signaux dans les installationslectriques basse tension Niveaux dmission,bandes de frquences et niveaux deperturbations lectromagntiquesReference numberIEC 61000-3-8:1997(E)IEC web site http:/www.iec.che-mail:inmailiec.chNumberingAs from 1 January 1997 all IEC pu
4、blications are issued with a designation in the60000 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 publication,the base publication incorporating amendment 1 a
5、nd 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 relating to the date of the reconfirmation of the publication
6、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 IEC publicationsPublished yearly with regular updates(On-l
7、ine 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,readers are referred to publications IEC 60027:Letter symb
8、ols 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.61000-3-8 IEC:1997(E)3 CONTENTSPageFOREWORD.4INTRODUCTION.5Clause1Scope.62Normativ
9、e references.63General.74Definitions.85Frequency bands(ITU region 1 only).86Transmitter output signal voltage.87Disturbance and interference limits.108Test conditions.129Inadvertent operation.13Tables1Limits of mains terminal interference voltage in the frequency range 0,15 MHzto 30 MHz.112Limits of
10、 radiated interference field strength in the frequency range 30 MHzto 1 000 MHz at a test distance of 10 m.113Limits of disturbance.12Figures1Measurement of output levels in the band 3 kHz to 9 kHz(differential mode).142Measurement of output levels in the band 3 kHz to 9 kHz(common mode).153Measurem
11、ent of spectral bandwidth.164Measuring arrangement for equipment whose operation is dependent on thetransmitter being in circuit.175Artificial mains network 3 kHz to 9 kHz.186Idealized equivalent circuit model DUT port impedance.19AnnexesAMeasurement of output signal levels and conducted interferenc
12、e levels(3 kHz to 30 MHz).20BBasis of the artificial mains network for the measurement of output signals atfrequencies below 9 kHz.2161000-3-8 IEC:1997(E)4 INTERNATIONAL ELECTROTECHNICAL COMMISSION_ELECTROMAGNETIC COMPATIBILITY(EMC)Part 3:Limits Section 8:Signalling on low-voltage electrical install
13、ations Emission levels,frequency bands and electromagnetic disturbance levelsFOREWORD1)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 promoteinte
14、rnational co-operation on all questions concerning standardization in the electrical and electronic fields.Tothis end and in addition to other activities,the IEC publishes International Standards.Their preparation isentrusted to technical committees;any IEC National Committee interested in the subje
15、ct dealt with mayparticipate in this preparatory work.International,governmental and non-governmental organizations liaisingwith the IEC also participate in this preparation.The IEC collaborates closely with the International Organizationfor Standardization(ISO)in accordance with conditions determin
16、ed by agreement between the twoorganizations.2)The formal decisions or agreements of the IEC on technical matters express,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 reports or guides and they are accepted by the National Committees in tha
