IEC_CISPR_23-1987_scan.pdf

COMMISSIONLECTROTECHNIQUEINTERNATIONALEINTERNATIONALELECTROTECHNICALCOMMISSIONCISPR23Premire ditionFirst edition1987-12COMIT INTERNATIONAL SPCIAL DES PERTURBATIONS RADIOLECTRIQUESINTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCECalcul des valeurs limites des appareils industriels,scientifiques et mdicauxDetermination of limits for industrial,scientificand medical equipmentIECNumro de rfrenceReference numberCISPR 23:1987LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Rvision de la prsente publicationLe contenu technique des publications de la CEI et duCISPR est constamment revu par la Commission et parle CISPR afin quil reflte bien ltat actuel de la technique.Les renseignements relatifs des questions ltude etdes travaux en cours entrepris par le comit techniquequi a tabli cette publication,ainsi que la liste despublications tablies,se trouvent dans les documentsci-dessous:Site web de la CEI*Catalogue des publications de la CEIPubli annuellement et mis jourrgulirement(Catalogue en ligne)*Bulletin de la CEIDisponible la fois au site web de la CEI*et comme priodique imprimTerminologie utilise dans la prsentepublicationSeuls sont dfinis ici les termes spciaux se rapportant la prsente publication.En ce qui concerne la terminologie gnrale,le lecteur sereportera la CEI 60050:Vocabulaire ElectrotechniqueInternational(VEI),qui est tablie sous forme dechapitres spars traitant chacun dun sujet dfini,lIndexgnral tant publi sparment.Des dtails completssur le VEI peuvent tre obtenus sur demande.Pour les termes concernant les perturbations radio-lectriques,voir le chapitre 902.Symboles graphiques et littrauxPour les symboles graphiques,les symboles littraux etles signes dusage gnral approuvs par la CEI,lelecteur consultera:la CEI 60027:Symboles littraux utiliser enlectrotechnique;la CEI 60617:Symboles graphiques pour schmas;Les symboles et signes contenus dans la prsentepublication ont t soit tirs de la CEI 60027 ouCEI 60617,soit spcifiquement approuvs aux fins decette publication.Revision of this publicationThe technical content of IEC and CISPR publications iskept under constant review by the IEC and CISPR,thusensuring that the content reflects current technology.Information on the subjects under consideration andwork in progress undertaken by the technical com-mittee which has prepared this publication,as well asthe list of publications issued,is to be found at thefollowing IEC sources:IEC web site*Catalogue of IEC publicationsPublished yearly with regular updates(On-line catalogue)*IEC BulletinAvailable both at the IEC web site*andas a printed periodicalTerminology used in this publicationOnly special terms required for the purpose of thispublication are defined herein.For general terminology,readers are referred toIEC 60050:International Electrotechnical Vocabulary(IEV),which is issued in the form of separate chapterseach dealing with a specific field,the General Indexbeing published as a separate booklet.Full details ofthe IEV will be supplied on request.For terms on radio interference,see Chapter 902.Graphical and letter symbolsFor graphical symbols,and letter symbols and signsapproved by the IEC for general use,readers arereferred to:IEC 60027:Letter symbols to be used inelectrical technology;IEC 60617:Graphical symbols for diagrams;The symbols and signs contained in the presentpublication have either been taken from IEC 60027 orIEC 60617,or have been specifically approved for thepurpose of this publication.Site web de la CEI http:/www.iec.ch?*IEC web site http:/www.iec.chLICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IECCOMMISSIONLECTROTECHNIQUEINTERNATIONALEINTERNATIONALELECTROTECHNICALCOMMISSIONCISPR23Premire ditionFirst edition1987-12COMIT INTERNATIONAL SPECIAL DES PERTURBATIONS RADIOLECTRIQUESINTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCECalcul des valeurs limites des appareils industriels,scientifiques et mdicauxDetermination of limits for industrial,scientificand medical equipment IEC 1987 Droits de reproduction rservs Copyright-all rights reservedAucune partie de cette publication ne peut tre reproduite niutilise sous quelque forme que ce soit et par aucunprocd,lectronique ou mcanique,y compris la photo-copie et les microfilms,sans laccord crit de lditeur.No part of this publication may be reproduced or utilized inany form or by any means,electronic or mechanical,including photocopying and microfilm,without permission inwriting from the publisher.International Electrotechnical Commission?3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300?e-mail:inmailiec.ch?IEC web site http:/www.iec.chCommission Electrotechnique InternationaleInternational Electrotechnical CommissionMenuayHaponHaR 3rleKTpoTexHH4ecKaa KOMHCCHA?CODE PRIXPRICE CODEPour prix,voir catalogue en vigueurFor price,see current catalogueMLICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS