IEC_61660-1-1997.pdf

NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD61660-1Premire ditionFirst edition1997-06Courants de court-circuit dans les installationsauxiliaires alimentes en courant continudans les centrales et les postes Partie 1:Calcul des courants de court-circuitShort-circuit currents in d.c.auxiliary installationsin power plants and substations Part 1:Calculation of short-circuit currentsNumro de rfrenceReference numberCEI/IEC 61660-1:1997LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Validit de la prsente publicationLe contenu technique des publications de la CEI estconstamment revu par la CEI afin quil reflte ltatactuel de la technique.Des renseignements relatifs la date dereconfirmation de la publication sont disponiblesauprs du Bureau Central de la CEI.Les renseignements relatifs ces rvisions,ltablissement des ditions rvises et auxamendements peuvent tre obtenus auprs desComits nationaux de la CEI et dans les documentsci-dessous:Bulletin de la CEIAnnuaire de la CEIPubli annuellementCatalogue des publications de la CEIPubli annuellement et mis jour rgulirementTerminologieEn ce qui concerne la terminologie gnrale,le lecteurse reportera la CEI 60050:VocabulaireElectrotechnique International(VEI),qui se prsentesous forme de chapitres spars traitant chacun dunsujet dfini.Des dtails complets sur le VEI peuventtre obtenus sur demande.Voir galement ledictionnaire multilingue de la CEI.Les termes et dfinitions figurant dans la prsentepublication ont t soit tirs du VEI,soitspcifiquement approuvs aux fins de cettepublication.Symboles graphiques et littrauxPour les symboles graphiques,les symboles littrauxet les signes dusage gnral approuvs par la CEI,lelecteur consultera:la CEI 60027:Symboles littraux utiliser enlectrotechnique;la CEI 60417:Symboles graphiques utilisables surle matriel.Index,relev et compilation des feuillesindividuelles;la CEI 60617:Symboles graphiques pour schmas;et pour les appareils lectromdicaux,la CEI 60878:Symboles graphiques pourquipements lectriques en pratique mdicale.Les symboles et signes contenus dans la prsentepublication ont t soit tirs de la CEI 60027,de laCEI 60417,de la CEI 60617 et/ou de la CEI 60878,soit spcifiquement approuvs aux fins de cettepublication.Publications de la CEI tablies par lemme comit dtudesLattention du lecteur est attire sur les listes figurant la fin de cette publication,qui numrent lespublications de la CEI prpares par le comitdtudes qui a tabli la prsente publication.Validity of this publicationThe technical content of IEC publications is kept underconstant review by the IEC,thus ensuring that thecontent reflects current technology.Information relating to the date of the reconfirmationof the publication is available from the IEC CentralOffice.Information on the revision work,the issue of revisededitions and amendments may be obtained from IECNational Committees and from the following IECsources:IEC BulletinIEC YearbookPublished yearlyCatalogue of IEC publicationsPublished yearly with regular updatesTerminologyFor 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.Full details of theIEV will be supplied on request.See also the IECMultilingual Dictionary.The terms and definitions contained in the presentpubli-cation have either been taken from the IEV orhave been specifically approved for the purpose of thispublication.Graphical and letter symbolsFor graphical symbols,and letter symbols and signsapproved by the IEC for general use,readers arereferred to publications:IEC 60027:Letter symbols to be used in electricaltechnology;IEC 60417:Graphical symbols for use onequipment.Index,survey and compilation of thesingle sheets;IEC 60617:Graphical symbols for diagrams;and for medical electrical equipment,IEC 60878:Graphical symbols for electromedicalequipment in medical practice.The symbols and signs contained in the presentpublication have either been taken from IEC 60027,IEC 60417,IEC 60617 and/or IEC 60878,or havebeen specifically approved for the purpose of thispublication.IEC publications prepared by the sametechnical committeeThe attention of readers is drawn to the end pages ofthis publication which list the IEC publications issuedby the technical committee which has prepared thepresent publication.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD61660-1Premire ditionFirst edition1997-06Courants de court-circuit dans les installationsauxiliaires alimentes en courant continudans les centrales et les postes Partie 1:Calcul des courants de court-circuitShort-circuit currents in d.c.auxiliary installationsin power plants and substations Part 1:Calculation of short-circuit currents Commission Electrotechnique Internationale International Electrotechnical CommissionPour p