1、NORME?CEIINTERNATIONALE?IECINTERNATIONAL?60647STANDARDPremire ditionFirst edition1979-01Dimensions des noyaux en oxydes magntiquesdestins aux alimentations(noyaux EC)Dimensions for magnetic oxide cores intendedfor use in power supplies(EC cores)IECNumro de rfrenceReference numberCEI/IEC 60647:1979LI
2、CENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Numros des publicationsDepuis le 1er janvier 1997,les publications de la CEIsont numrotes partir de 60000.Publications consolidesLes versions consolides de certaines publications dela CEI i
3、ncorporant les amendements sont disponibles.Par exemple,les numros ddition 1.0,1.1 et 1.2indiquent respectivement la publication de base,lapublication de base incorporant lamendement 1,et lapublication de base incorporant les amendements 1et 2.Validit de la prsente publicationLe contenu technique de
4、s publications de la CEI estconstamment revu par la CEI afin quil reflte ltatactuel de la technique.Des renseignements relatifs la date de reconfir-mation de la publication sont disponibles dans leCatalogue de la CEI.Les renseignements relatifs des questions ltude etdes travaux en cours entrepris pa
5、r le comit techniquequi a tabli cette publication,ainsi que la liste despublications tablies,se trouvent dans les documents ci-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
6、 de la CEI*et comme priodique imprimTerminologie,symboles graphiqueset littrauxEn ce qui concerne la terminologie gnrale,le lecteurse reportera la CEI 60050:Vocabulaire lectro-technique International(VEI).Pour les symboles graphiques,les symboles littrauxet les signes dusage gnral approuvs par la CE
7、I,lelecteur consultera la CEI 60027:Symboles littraux utiliser en lectrotechnique,la CEI 60417:Symbolesgraphiques utilisables sur le matriel.Index,relev etcompilation des feuilles individuelles,et la CEI 60617:Symboles graphiques pour schmas.NumberingAs from 1 January 1997 all IEC publications areis
8、sued with a designation in the 60000 series.Consolidated publicationsConsolidated versions of some IEC publicationsincluding amendments are available.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,tothe base publication,the base publication incor-porating amendment 1 and the base pub
9、licationincorporating amendments 1 and 2.Validity of this publicationThe technical content of IEC publications is keptunder constant review by the IEC,thus ensuring thatthe content reflects current technology.Information relating to the date of the reconfirmationof the publication is available in th
10、e IEC catalogue.Information on the subjects under consideration andwork in progress undertaken by the technicalcommittee which has prepared this publication,as wellas the list of publications issued,is to be found at thefollowing IEC sources:IEC web site*Catalogue of IEC publicationsPublished yearly
11、 with regular updates(On-line catalogue)*IEC BulletinAvailable both at the IEC web site*andas a printed periodicalTerminology,graphical and lettersymbolsFor general terminology,readers are referred toIEC 60050:International Electrotechnical Vocabulary(IEV).For graphical symbols,and letter symbols an
12、d signsapproved by the IEC for general use,readers arereferred to publications IEC 60027:Letter symbols tobe used in electrical technology,IEC 60417:Graphicalsymbols for use on equipment.Index,survey andcompilation of the single sheets and IEC 60617:Graphical symbols for diagrams.*Voir adresse site
13、web sur la page de titre.?*See web site address on title page.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IECNORMEINTERNATIONALEINTERNATIONALSTAN DARDCEIIEC60647Premire ditionFirst edition1979-01Dimensions des noyaux en oxydes magn
14、tiquesdestins aux alimentations(noyaux EC)Dimensions for magnetic oxide cores intendedfor use in power supplies(EC cores)IEC 1979 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 aucun
15、procd,lectronique ou mcanique,y compris la photo-copie et les microfilms,sans raccord 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.Int
16、ernational 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 CommissionMQHtpyHapomeR 3netcrpoTexHNVecnaa HOMHCCHA?CODE PRIXPRICE CODEPour prix,voir catalogue en vigueurFor price,see current catalogueFLICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2COMMISSION LECTROTECHNIQUE I
