IEC 60724-2000 Short-circuit temperature limits of electric cables with a rated voltage of 1 kV (Um = 1 2 kV) and 3 kV (Um = 3 6 kV)《额定电压为1kV(Um=1.2kV)和3kV(Um=3.6kV)的电缆的短路温度极限》.pdf

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IEC 60724-2000 Short-circuit temperature limits of electric cables with a rated voltage of 1 kV (Um = 1 2 kV) and 3 kV (Um = 3 6 kV)《额定电压为1kV(Um=1.2kV)和3kV(Um=3.6kV)的电缆的短路温度极限》.pdf_第1页
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IEC 60724-2000 Short-circuit temperature limits of electric cables with a rated voltage of 1 kV (Um = 1 2 kV) and 3 kV (Um = 3 6 kV)《额定电压为1kV(Um=1.2kV)和3kV(Um=3.6kV)的电缆的短路温度极限》.pdf_第4页
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IEC 60724-2000 Short-circuit temperature limits of electric cables with a rated voltage of 1 kV (Um = 1 2 kV) and 3 kV (Um = 3 6 kV)《额定电压为1kV(Um=1.2kV)和3kV(Um=3.6kV)的电缆的短路温度极限》.pdf_第5页
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1、NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD60724Troisime ditionThird edition2000-10Limites de temprature de court-circuitdes cbles lectriques de tensions assignesde 1 kV (Um= 1,2 kV) et 3 kV (Um= 3,6 kV)Short-circuit temperature limits of electric cableswith rated voltages of 1 kV (Um= 1,2 kV)and

2、 3 kV (Um= 3,6 kV)Numro de rfrenceReference numberCEI/IEC 60724:2000Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-Numros des publicationsDepuis le 1er janvier 1997, les public

3、ations de la CEIsont numrotes partir de 60000.Publications consolidesLes versions consolides de certaines publications dela CEI incorporant les amendements sont disponibles.Par exemple, les numros ddition 1.0, 1.1 et 1.2indiquent respectivement la publication de base, lapublication de base incorpora

4、nt lamendement 1, et lapublication de base incorporant les amendements 1et 2.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 de reconfir-mation de la public

5、ation sont disponibles dans leCatalogue de la CEI.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 documents ci-dessous: Site web de la CEI* Catalogue

6、 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, symboles graphiqueset littrauxEn ce qui concerne la terminologie gnrale, le lecteurse reportera la CEI 60050: Vo

7、cabulaire Electro-technique International (VEI).Pour les symboles graphiques, les symboles littrauxet les signes dusage gnral approuvs par la CEI, lelecteur consultera la CEI 60027: Symboles littraux utiliser en lectrotechnique, la CEI 60417: Symbolesgraphiques utilisables sur le matriel. Index, rel

8、ev etcompilation des feuilles individuelles, et la CEI 60617:Symboles graphiques pour schmas.* Voir adresse site web sur la page de titre.NumberingAs from 1 January 1997 all IEC publications areissued with a designation in the 60000 series.Consolidated publicationsConsolidated versions of some IEC p

9、ublicationsincluding 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 publicationincorporating amendments 1 and 2.Validity of this publicationThe technical content of IEC p

10、ublications 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 the IEC catalogue.Information on the subjects under consideration andwork in progress undertaken by

11、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 with regular updates(On-line catalogue)* IEC BulletinAvailable both at the IEC web site* anda

12、s a printed periodicalTerminology, graphical and lettersymbolsFor general terminology, readers are referred toIEC 60050: International Electrotechnical Vocabulary(IEV). For graphical symbols, and letter symbols and signsapproved by the IEC for general use, readers arereferred to publications IEC 600

13、27: 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.* See web site address on title page.Copyright International Electrotechnical Commission Provided by

14、 IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD60724Troisime ditionThird edition2000-10Limites de temprature de court-circuitdes cbles lectriques de tensions assignesde 1 kV (Um= 1,2 kV) et 3 k

15、V (Um= 3,6 kV)Short-circuit temperature limits of electric cableswith rated voltages of 1 kV (Um= 1,2 kV)and 3 kV (Um= 3,6 kV)Commission Electrotechnique InternationaleInternational Electrotechnical CommissionPour prix, voir catalogue en vigueurFor price, see current catalogue IEC 2000 Droits de rep

16、roduction rservs Copyright - all rights reservedAucune partie de cette publication ne peut tre reproduite niutilise sous quelque forme que ce soit et par aucun procd,lectronique ou mcanique, y compris la photocopie et lesmicrofilms, sans laccord crit de lditeur.No part of this publication may be rep

17、roduced 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

18、:/www.iec.chCODE PRIXPRICE CODEJCopyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,- 2 60724 CEI:2000SOMMAIREPagesAVANT-PROPOS . 4INTRODUCTION 6Articles1 Domaine dapplication 82 Rfr

19、ences normatives. 83 Facteurs gouvernant lapplication des limites de temprature 83.1 Gnralits . 83.2 Cbles 103.3 Accessoires 103.4 Conditions dinstallation. 124 Tempratures maximales de court-circuit admissibles pour les cbles de tensionsassignes de 1 kV (Um= 1,2 kV) et 3 kV (Um= 3,6 kV) . 124.1 Mat

20、riaux de lenveloppe isolante 144.2 Matriaux de gainage et de bourrage, en labsence de prescriptions lectriquesou autres 144.3 Matriaux dme, dcran ou de gaine mtallique, darmure, et mthodes deraccordement 16Copyright International Electrotechnical Commission Provided by IHS under license with IECNot

21、for ResaleNo reproduction or networking permitted without license from IHS-,-60724 IEC:2000 3 CONTENTSPageFOREWORD . 5INTRODUCTION 7Clause1 Scope 92 Normative references . 93 Factors governing the application of the temperature limits . 93.1 General. 93.2 Cables 113.3 Accessories 113.4 Installation

22、conditions 134 Maximum permissible short-circuit temperatures for cables with rated voltages of 1 kV(Um= 1,2 kV) and 3 kV (Um= 3,6 kV) . 134.1 Insulation materials . 154.2 Oversheath and bedding materials where there are no electrical or otherrequirements. 154.3 Conductor/metallic sheath/screen/armo

23、ur materials and methods of connection 17Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,- 4 60724 CEI:2000COMMISSION LECTROTECHNIQUE INTERNATIONALELIMITES DE TEMPRATURE DE COURT

24、-CIRCUITDES CBLES LECTRIQUES DE TENSIONS ASSIGNESDE 1 kV (Um= 1,2 kV) ET 3 kV (Um= 3,6 kV)AVANT-PROPOS1) La CEI (Commission Electrotechnique Internationale) est une organisation mondiale de normalisation composede lensemble des comits lectrotechniques nationaux (Comits nationaux de la CEI). La CEI a

25、 pour objet defavoriser la coopration internationale pour toutes les questions de normalisation dans les domaines dellectricit et de llectronique. A cet effet, la CEI, entre autres activits, publie des Normes Internationales.Leur laboration est confie des comits dtudes, aux travaux desquels tout Com

26、it national intress par lesujet peut participer. Les organisations internationales, gouvernementales et non gouvernementales, en liaisonavec la CEI, participent galement aux travaux. La CEI collabore troitement avec lOrganisation Internationalede Normalisation (ISO), selon des conditions fixes par a

27、ccord entre les deux organisations.2) Les dcisions ou accords officiels de la CEI concernant les questions techniques, reprsentent, dans la mesuredu possible un accord international sur les sujets tudis, tant donn que les Comits nationaux intressssont reprsents dans chaque comit dtudes.3) Les docume

28、nts produits se prsentent sous la forme de recommandations internationales. Ils sont publiscomme normes, spcifications techniques, rapports techniques ou guides et agrs comme tels par les Comitsnationaux.4) Dans le but dencourager lunification internationale, les Comits nationaux de la CEI sengagent

29、 appliquer defaon transparente, dans toute la mesure possible, les Normes Internationales de la CEI dans leurs normesnationales et rgionales. Toute divergence entre la norme de la CEI et la norme nationale ou rgionalecorrespondante doit tre indique en termes clairs dans cette dernire.5) La CEI na fi

30、x aucune procdure concernant le marquage comme indication dapprobation et sa responsabilitnest pas engage quand un matriel est dclar conforme lune de ses normes.6) Lattention est attire sur le fait que certains des lments de la prsente Norme internationale peuvent fairelobjet de droits de proprit in

31、tellectuelle ou de droits analogues. La CEI ne saurait tre tenue pourresponsable de ne pas avoir identifi de tels droits de proprit et de ne pas avoir signal leur existence.La Norme internationale CEI 60724 a t tablie par le comit dtudes 20 de la CEI: Cbleslectriques.Cette troisime dition annule et

32、remplace la deuxime dition, parue comme guide en 1984.Elle a t rvise pour sadapter aux tensions assignes et aux matriaux de la CEI 60502-1.Le texte de cette norme est issu des documents suivants:FDIS Rapport de vote20/399/FDIS 20/418/RVDLe rapport de vote indiqu dans le tableau ci-dessus donne toute

33、 information sur le vote ayantabouti lapprobation de cette norme.Cette publication a t rdige selon les Directives ISO/CEI, Partie 3.Le comit a dcid que le contenu de cette publication ne sera pas modifi avant 2007. A cettedate, la publication serareconduite;supprime;remplace par une dition rvise, ou

34、amende.Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-60724 IEC:2000 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION_SHORT-CIRCUIT TEMPERATURE LIMITSOF ELECTRIC CABLES WITH RATED V

35、OLTAGESOF 1 kV (Um= 1,2 kV) AND 3 kV (Um= 3,6 kV)FOREWORD1) 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 promoteinternational co-operation

36、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 subject dealt with maypa

37、rticipate 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 determined by agreemen

38、t 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

39、 produced have the form of recommendations for international use and are published in the formof standards, technical specifications, technical reports or guides and they are accepted by the NationalCommittees in that sense.4) In order to promote international unification, IEC National Committees un

40、dertake to apply IEC InternationalStandards transparently to the maximum extent possible in their national and regional standards. Anydivergence between the IEC Standard and the corresponding national or regional standard shall be clearlyindicated in the latter.5) The IEC provides no marking procedu

41、re to indicate its approval and cannot be rendered responsible for anyequipment declared to be in conformity with one of its standards.6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subjectof patent rights. The IEC shall not be held respo

42、nsible for identifying any or all such patent rights.International Standard IEC 60724 has been prepared by IEC technical committee 20: Electriccables.This third edition cancels and replaces the second edition, published as a guide in 1984. It hasbeen revised to accommodate rated voltages and materia

43、ls as covered in IEC 60502-1.The text of this standard is based on the following documents:FDIS Report on voting20/399/FDIS 20/418/RVDFull information on the voting for the approval of this standard can be found in the report onvoting indicated in the above table.This publication has been drafted in

44、 accordance with the ISO/IEC Directives, Part 3.The committee has decided that the contents of this publication will remain unchanged until2007. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended.Copyright International Electrotechnical Commission

45、 Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,- 6 60724 CEI:2000INTRODUCTIONCette troisime dition de la CEI 60724 parat conjointement avec la CEI 60986, deuximedition, et la CEI 61443, premire dition.Les quatre aspects suivants

46、 peuvent tre considrs lorsquon dfinit le rgime de court-circuitdun rseau de cbles:a) les limites maximales admissibles de temprature des constituants du cble (par exempleme, enveloppe isolante, cran ou gaine mtallique, bourrage, armure et gaine externe).En pratique, lnergie qui provoque llvation de

47、temprature est habituellement exprimepar une valeur quivalente (I2t) afin que, pour un courant de court-circuit donn, la duremaximale admissible puisse tre calcule;b) la valeur maximale de courant qui ne provoquera pas de dfaut mcanique (par exempleun clatement) d aux efforts lectromagntiques. Indpe

48、ndamment de toute limitation detemprature, cette valeur dtermine un courant maximal quil convient de ne pas dpasser;c) la tenue thermique des jonctions et des extrmits aux valeurs limites de courant et dedure spcifies pour le cble associ. Il convient que les accessoires prsententgalement une rsistance aux efforts thermomcaniques et lectromagntiques provoquspar le courant de cou

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