CEI NORME IEC INTERNATIONALE 1247 INTERNATIONAL Premiere édition STANDARD First edition 1995-05 NoyauxPM enoxydesmagnetiqueset pieces associees - Dimensions PM-cores made of magnetic oxides and associatedparts-Dimensions IEC Numéro de reférence Referencenumber CEI/IEC1247:1995 Copyright Intemational Electrotechnical Commission Provided by IHS under license with IEC /ees/1111111001, User=Wing, Bernie Numbering Numérosdes publications Depuisle1er janvier1997,les publicationsdela CEl January 1997 all IEc publications are Asfrom1 sontnumérotéesapartirde60000. issuedwithadesignation inthe60000series. Publications consolidees Consolidatedpublications Les versions consolidees de certaines publications de Consolidated versions someIEC publications la CEl incorporant les amendements sont disponibles. including amendmentsareavailable.For example, Par exemple, les numéros d'édition 1.0, 1.1 et 1.2 edition numbers 1.0,1.1and1.2refer,respectively,to indiquent respectivement la publication de base, la the base publication, the base publication publication de base incorporant I'amendement 1, et la incorporating amendment 1 and the base publication incorporating amendments 1 and 2. publicationde baseincorporantles amendements1 et 2. Validite de la presente publication Validity of this publication Le contenu techniquedes publications de laCElest ThetechnicalcontentofIECpublicationsis keptunder constamment revu par la CEl afin quil reflete I'état constant review by the IEC, thus ensuring that the content reflects current technology. actuel de la technique. Information relating to the date of the reconfirmation of Des renseignements relatifs la date de reconfirmation de la publication sont disponibles dans thepublicationisavailableinthelEC catalogue. le Catalogue de la CEl. Information on the subjects under consideration and Lesrenseignements relatifsa desquestionsa I'étudeet des travaux en cours entreprispar le comitetechnique workin progress undertaken by the technical qui a établi cette publication, ainsi que la liste des committee which has prepared this publication, as well publications établies, se trouvent dans les documents ci- as the list of publications issued, is to be found at the followingIEC sources: dessous: “Siteweb"de la CEI* IECweb site* Catalogue des publications de la CEl Catalogue of IEC publications Publie annuellement et mis a jour regulierement Published yeariy with regular updates (Catalogue en ligne)* (On-line catalogue)* Bulletin de la CEI IECBulletin Disponible a la fois ausite webde la CEl*et Available both at the IEC web site* and as a printed periodical commepériodique imprimé Terminologie,symboles graphiques Terminology,graphicaland letter et litteraux symbols For general terminology, En ce qui concernelaterminologiegenerale,lelecteur readers are referred to iEc 60050:InternationalElectrotechnical Vocabulary se reportera a la CEl 60050: Vocabulaire Electro- techniqueInternational(VEl). (IEV). Pourlessymbolesgraphiques,lessymboleslitteraux For graphical symbols,and letter symbols and signs et les signes d'usage genéral approuves par la CEl, le approved by the IEC for general use, readers are lecteur consultera la CEl60027:Symboles litteraux a referred to publications IEC 60027:Letter symbols to utiliserenelectrotechnigue,laCEi60417:Symboles beused in electrical technology,IEc 60417:Graphical graphiques utilisables surle materiel. Index, releve et symbols for use on equipment. Index, survey and compilation des feuilles individuelles, et la CEl 60617: compilationof thesinglesheetsand IEC 60617: Symbolesgraphiquespourschemas. Graphicalsymbolsfordiagrams. See web site address on title page. Voiradressesitewebsurlapagedetitre. Copyright Intemational Electrotechnical Commission Provided by IHS under license with IE Licensee=IHS Employees/1111111001, UserWing, Bernie Noreproductionornetworking permitted withoutlicense fromIHS Not for Resale, 03/09/2007 07:32:36 MS CEI NORME IEC INTERNATIONALE 1247 INTERNATIONAL Premiere é