1、NORME?CEIINTERNATIONALE?IECINTERNATIONAL?60621-2STANDARDDeuxime ditionSecond edition1987Installations lectriques pour chantiers extrieurssoumis des conditions svres(y comprismines ciel ouvert et carrires)Deuxime partie:Prescriptions gnrales de protectionElectrical installations for outdoor sites und
2、erheavy conditions(including open-cast minesand quarries)Part 2:General protection requirementsIECNumro de rfrenceReference numberCEI/IEC 60621-2:1987LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Numros des publicationsLes publicatio
3、ns de la CEI sont numrotes partir de60000 ds le ter janvier 1997.Publications consolidesLes versions consolides de certaines publications dela CEI incorporant amendements sont disponibles.Parexemple,les numros ddition 1.0,1.1 et 1.2indiquent respectivement la publication de base,lapublication de bas
4、e incorporant 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 dereconfirmation de l
5、a publication sont disponibles dansle Catalogue de la CEI.Les renseignements relatifs ces rvisions,ltablis-sement des ditions rvises et aux amendementspeuvent tre obtenus auprs des Comits nationaux dela CEI et dans les documents ci-dessous:Bulletin de la CEIAnnuaire de la CEIAccs en ligne*Catalogue
6、des publications de la CEIPubli annuellement et mis jour rgulirement(Accs en ligne)*Terminologie,symboles graphiqueset littrauxEn ce qui concerne la terminologie gnrale,le lecteurse reportera la CEI 60050:Vocabulaire Electro-technique International(VEI).Pour les symboles graphiques,les symboles litt
7、rauxet 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,relev etcompilation des feuilles individuelles,et la CEI 60617:Symboles graphiques pour schmas.Publicati
8、ons de la CEI tablies parle mme 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.*Voir adresse site web sur la page de titre.NumberingAs from the 1st Ja
9、nuary 1997 all IEC publications areissued 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 publicationincorpo
10、rating amendment 1 and the base publicationincorporating amendments 1 and 2.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 reconfirmation o
11、fthe publication is available in the IEC catalogue.Information on the revision work,the issue of revisededitions and amendments may be obtained from IECNational Committees and from the following IECsources:IEC BulletinIEC YearbookOn-line access*Catalogue of IEC publicationsPublished yearly with regu
12、lar updates(On-line access)*Terminology,graphical and lettersymbolsFor general terminology,readers are referred to IEC60050: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.IEC publications prepared by the sametechnical committeeThe attention of readers is drawn to the end page
14、s ofthis publication which list the IEC publications issuedby the technical committee which has prepared thepresent publication.*See web site address on title page.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IECNORMEINTERNATIONALEI
15、NTERNATIONALSTAN DARDCEIIEC60621-2Deuxime ditionSecond edition1987Installations lectriques pour chantiers extrieurssoumis des conditions svres(y comprismines ciel ouvert et carrires)Deuxime partie:Prescriptions gnrales de protectionElectrical installations for outdoor sites underheavy conditions(inc
16、luding open-cast minesand quarries)Part 2:General protection requirements IEC 1987 Droits de reproduction rservs Copyright-all rights reservedAucune partie de cette publication ne peut tre reproduite ni?No part of this publication may be reproduced or utilized inutilise sous quelque forme que ce soit et par aucun?any form or by any means,electronic or mechanical,procd,lectronique ou mcanique,y compris la photo-?including photocopying and microfilm,without permission incopie et les microfilms,san
