IEC 60724 AMD 1-2008 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) Amendment 1《额定电压为1kV(.pdf

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1、 IEC 60724Edition 3.0 2008-09INTERNATIONAL STANDARD NORME INTERNATIONALEShort-circuit temperature limits of electric cables with rated voltages of 1 kV (Um= 1,2 kV) and 3 kV (Um= 3,6 kV) Limites de temprature de court-circuit des cbles lectriques de tensions assignes de 1 kV (Um= 1,2 kV) et 3 kV (Um

2、= 3,6 kV) IEC60724:2000/A1:2008 AMENDMENT 1 AMENDEMENT 1 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, i

3、ncluding photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address bel

4、ow or your local IEC member National Committee for further information. Droits de reproduction rservs. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie e

5、t les microfilms, sans laccord crit de la CEI ou du Comit national de la CEI du pays du demandeur. Si vous avez des questions sur le copyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de la CEI

6、 de votre pays de rsidence. IEC Central Office 3, rue de Varemb CH-1211 Geneva 20 Switzerland Email: inmailiec.ch Web: www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrica

7、l, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. Catalogue of IEC publications: www.iec.ch/sear

8、chpub The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, withdrawn and replaced publications. IEC Just Published: www.iec.ch/online_news/justpub Stay up to date on all new IEC publications. J

9、ust Published details twice a month all new publications released. Available on-line and also by email. Electropedia: www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French, with equivalent

10、terms in additional languages. Also known as the International Electrotechnical Vocabulary online. Customer Service Centre: www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Em

11、ail: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 A propos de la CEI La Commission Electrotechnique Internationale (CEI) est la premire organisation mondiale qui labore et publie des normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A

12、propos des publications CEI Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm Le Catalogue en-l

13、igne de la CEI vous permet deffectuer des recherches en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Il donne aussi des informations sur les projets et les publications retires ou remplaces. Just Published CEI: www.iec.ch/online_news/justpub Restez inform sur les nouvelles p

14、ublications de la CEI. Just Published dtaille deux fois par mois les nouvelles publications parues. Disponible en-ligne et aussi par email. Electropedia: www.electropedia.org Le premier dictionnaire en ligne au monde de termes lectroniques et lectriques. Il contient plus de 20 000 termes et dfinitio

15、ns en anglais et en franais, ainsi que les termes quivalents dans les langues additionnelles. Egalement appel Vocabulaire Electrotechnique International en ligne. Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm Si vous dsirez nous donner des commentaires sur cette publication ou s

16、i vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 60724Edition 3.0 2008-09INTERNATIONAL STANDARD NORME INTERNATIONALEShort-circuit temperature limits of electric cables with rated voltages of 1 kV (Um= 1,2

17、 kV) and 3 kV (Um= 3,6 kV) Limites de temprature de court-circuit des cbles lectriques de tensions assignes de 1 kV (Um= 1,2 kV) et 3 kV (Um= 3,6 kV) INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE CICS 29.060.20 PRICE CODECODE PRIXISBN 2-8318-1001-0AMENDMENT 1 A

18、MENDEMENT 1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 60724 Amend. 1 IEC:2008 FOREWORD This amendment has been prepared by IEC technical committee 20:Electric cables. The text of this amendment is based on th

19、e following documents: FDIS Report on voting 20/951/FDIS 20/974/RVD Full information on the voting for the approval of this amendment can be found in the report on voting indicated in the above table. The committee has decided that the contents of this amendment and the base publication will remain

20、unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. _ Page 11 3.3 Accessories Replace the seco

21、nd sentence of item a) by the following: Conductor stresses as high as 50 N/mm2can easily occur. Replace the last sentence of item b) by the following: A minimum conductor stress of 40 N/mm2should be used for design purposes. Page 15 4.2 Oversheath and bedding materials where there are no electrical

22、 or other requirements Replace subclause 4.2, including Tables 2 and 3, by the following: The screen/metallic sheath/armour temperature limits, when in contact with, or embedded in the oversheath materials, but thermally separated from the insulation by layers of suitable material and sufficient thi

23、ckness, are given in Table 2. If thermal separation is not provided, the temperature limit of the insulation should be used if it is lower than that of the oversheath. 60724 Amend. 1 IEC:2008 3 Table 2 Temperature limits for oversheath materials Material 1)Temperature 2), C Polyvinyl chloride (ST1an

24、d ST2) 200 Polyethylene (ST3)150 (ST7)180 Polychloroprene, chlorosulphonated polyethylene or similar polymers (SE1) 200 1) Materials and designations according to IEC 60502-1. 2) Higher temperatures may be allowed, provided experimental data are available to demonstrate their use. Page 17 4.3 Conduc

25、tor/metallic sheath/screen/armour materials and methods of connection Replace the first sentence of subclause 4.3 by the following: Temperature limits of current-carrying components are given in Table 3. Renumber Table 4 as Table 3. _ 4 60724 Amend. 1 CEI:2008 AVANT-PROPOS Le prsent amendement a t t

26、abli par le comit dtudes 20 de la CEI: Cbles lectriques. Le texte de cet amendement est issu des documents suivants: FDIS Rapport de vote20/951/FDIS 20/974/RVD Le rapport de vote indiqu dans le tableau ci-dessus donne toute information sur le vote ayant abouti lapprobation de cet amendement. Le comi

27、t a dcid que le contenu de cet amendement et de la publication de base ne sera pas modifi avant la date de maintenance indique sur le site web de la CEI sous “http:/webstore.iec.ch“ dans les donnes relatives la publication recherche. A cette date, la publication sera reconduite; supprime; remplace p

28、ar une dition rvise, ou amende. _ Page 10 3.3 Accessoires Remplacer la seconde phrase du point a) par ce qui suit: On peut facilement rencontrer des efforts sur lme pouvant atteindre 50 N/mm2. Remplacer la dernire phrase du point b) par ce qui suit: Au niveau de la conception, il convient dutiliser

29、un effort minimal sur lme de 40 N/mm2. Page 14 4.2 Matriaux de gainage et de bourrage, en labsence de prescriptions lectriques ou autres Remplacer le paragraphe 4.2, y compris les Tableaux 2 et 3, par ce qui suit: Le Tableau 2 donne les tempratures limites de lcran, de la gaine mtallique, de larmure

30、, lorsque ceux-ci sont en contact avec ou sont enrobs dans les matriaux de la gaine extrieure, mais sont thermiquement spars de lenveloppe isolante par des couches de matriaux appropris et dune paisseur suffisante. Si une telle sparation thermique nest pas prvue, il convient dutiliser la temprature

31、limite de lenveloppe isolante si elle est infrieure celle de la gaine extrieure. 60724 Amend. 1 CEI:2008 5 Tableau 2 Tempratures limites pour matriaux de gaine extrieure Materiau 1)Temprature 2), C Polychlorure de vinyle (ST1et ST2) 200 Polythylne (ST3)150 (ST7)180 Polychloroprne, polythylne chlroro

32、sulphon ou polymres similaires (SE1) 200 1) Matriaux et dsignations conformes la CEI 60502-1. 2) Des tempratures plus leves peuvent tre autorises sous rserve de fournir des donnes exprimentales dmontrant leur usage. Page 16 4.3 Matriaux dme, dcran ou de gaine mtallique, darmure, et mthodes de raccor

33、dement Remplacer la premire phrase du paragraphe 4.3 par ce qui suit: Les tempratures limites des constituants qui coulent le courant figurent au Tableau 3. Re-numroter le Tableau 4 en Tableau 3: _ INTERNATIONAL ELECTROTECHNICAL COMMISSION 3, rue de Varemb PO Box 131 CH-1211 Geneva 20 Switzerland Tel: + 41 22 919 02 11 Fax: + 41 22 919 03 00 infoiec.ch www.iec.ch

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