IEC 60670-21-2004 Boxes and enclosures for electrical accessories for household and similar fixed electrical installations - Part 21 Particular requirements for boxes and enclosure.pdf

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1、 NORME INTERNATIONALECEIIECINTERNATIONAL STANDARD 60670-21Premire ditionFirst edition2004-04Botes et enveloppes pour appareillage lectrique pour installations lectriques fixes pour usages domestiques et analogues Partie 21: Rgles particulires concernant les botes et enveloppes avec dispositifs de su

2、spension Boxes and enclosures for electrical accessories for household and similar fixed electrical installations Part 21: Particular requirements for boxes and enclosures with provision for suspension means Numro de rfrence Reference number CEI/IEC 60670-21:2004 Numrotation des publicationsDepuis l

3、e 1er janvier 1997, les publications de la CEIsont numrotes partir de 60000. Ainsi, la CEI 34-1devient la CEI 60034-1.Editions consolidesLes versions consolides de certaines publications de laCEI incorporant les amendements sont disponibles. Parexemple, les numros ddition 1.0, 1.1 et 1.2 indiquentre

4、spectivement la publication de base, la publication debase incorporant lamendement 1, et la publication debase incorporant les amendements 1 et 2.Informations supplmentairessur les publications de la CEILe contenu technique des publications de la CEI estconstamment revu par la CEI afin quil reflte l

5、tatactuel de la technique. Des renseignements relatifs cette publication, y compris sa validit, sont dispo-nibles dans le Catalogue des publications de la CEI(voir ci-dessous) en plus des nouvelles ditions,amendements et corrigenda. Des informations sur lessujets ltude et lavancement des travaux ent

6、reprispar le comit dtudes qui a labor cette publication,ainsi que la liste des publications parues, sontgalement disponibles par lintermdiaire de: Site web de la CEI (www.iec.ch) Catalogue des publications de la CEILe catalogue en ligne sur le site web de la CEI(http:/www.iec.ch/searchpub/cur_fut.ht

7、m) vous permetde faire des recherches en utilisant de nombreuxcritres, comprenant des recherches textuelles, parcomit dtudes ou date de publication. Desinformations en ligne sont galement disponibles surles nouvelles publications, les publications rempla-ces ou retires, ainsi que sur les corrigenda.

8、 IEC Just PublishedCe rsum des dernires publications parues(http:/www.iec.ch/online_news/justpub/jp_entry.htm)est aussi disponible par courrier lectronique.Veuillez prendre contact avec le Service client(voir ci-dessous) pour plus dinformations. Service clientsSi vous avez des questions au sujet de

9、cettepublication ou avez besoin de renseignementssupplmentaires, prenez contact avec le Serviceclients:Email: custserviec.chTl: +41 22 919 02 11Fax: +41 22 919 03 00Publication numberingAs from 1 January 1997 all IEC publications areissued with a designation in the 60000 series. Forexample, IEC 34-1

10、 is now referred to as IEC 60034-1.Consolidated editionsThe IEC is now publishing consolidated versions of itspublications. For example, edition numbers 1.0, 1.1and 1.2 refer, respectively, to the base publication,the base publication incorporating amendment 1 andthe base publication incorporating a

11、mendments 1and 2.Further information on IEC publicationsThe technical content of IEC publications is keptunder constant review by the IEC, thus ensuring thatthe content reflects current technology. Informationrelating to this publication, including its validity, isavailable in the IEC Catalogue of p

12、ublications(see below) in addition to new editions, amendmentsand corrigenda. Information on the subjects underconsideration and work in progress undertaken by thetechnical committee which has prepared thispublication, as well as the list of publications issued,is also available from the following:

13、IEC Web Site (www.iec.ch) Catalogue of IEC publicationsThe on-line catalogue on the IEC web site(http:/www.iec.ch/searchpub/cur_fut.htm) enablesyou to search by a variety of criteria including textsearches, technical committees and date ofpublication. On-line information is also availableon recently

14、 issued publications, withdrawn andreplaced publications, as well as corrigenda. IEC Just PublishedThis summary of recently issued publications(http:/www.iec.ch/online_news/justpub/jp_entry.htm)is also available by email. Please contact theCustomer Service Centre (see below) for furtherinformation.

15、Customer Service CentreIf you have any questions regarding thispublication or need further assistance, pleasecontact the Customer Service Centre:Email: custserviec.chTel: +41 22 919 02 11Fax: +41 22 919 03 00.NORME INTERNATIONALECEIIECINTERNATIONAL STANDARD 60670-21Premire ditionFirst edition2004-04

16、Botes et enveloppes pour appareillage lectrique pour installations lectriques fixes pour usages domestiques et analogues Partie 21: Rgles particulires concernant les botes et enveloppes avec dispositifs de suspension Boxes and enclosures for electrical accessories for household and similar fixed ele

17、ctrical installations Part 21: Particular requirements for boxes and enclosures with provision for suspension means Pour prix, voir catalogue en vigueur For price, see current catalogue IEC 2004 Droits de reproduction rservs Copyright - all rights reserved Aucune partie de cette publication ne peut

18、tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de lditeur. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including ph

19、otocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch CODE PRIX PRICE CODE L Commiss

20、ion Electrotechnique InternationaleInternational Electrotechnical Commission 2 60670-21 CEI:2004 SOMMAIRE AVANT-PROPOS4 1 Domaine dapplication 8 2 Rfrences normatives.8 3 Dfinitions 8 4 Rgles gnrales .8 5 Notes gnrales sur les essais .8 6 Caractristiques assignes.8 7 Classification10 8 Marquage .10

21、9 Dimensions 10 10 Protection contre les chocs lectriques.10 11 Dispositions de mise la terre10 12 Construction.12 13 Rsistance au vieillissement, protection contre la pntration de corps solides et contre la pntration nuisible de leau 12 14 Rsistance disolement et rigidit dilectrique 12 15 Rsistance

22、 mcanique .12 16 Rsistance la chaleur 16 17 Lignes de fuite, distances disolement dans lair et distances travers le matriau dtanchit16 18 Rsistance du matriau isolant la chaleur anormale et au feu16 19 Rsistance au cheminement.16 20 Rsistance la corrosion .16 21 Compatibilit lectromagntique (CEM)16

23、Figure 101 Exemples de dispositifs de suspensions .18 Figure 102 Essai sur plafond inclin .20 60670-21 IEC:2004 3 CONTENTS FOREWORD.5 1 Scope.9 2 Normative references .9 3 Definitions 9 4 General requirements.9 5 General notes on tests .9 6 Ratings.9 7 Classification11 8 Marking 11 9 Dimensions 11 1

24、0 Protection against electric shock 11 11 Provision for earthing .11 12 Construction.13 13 Resistance to ageing, protection against ingress of solid objects and against harmful ingress of water .13 14 Insulation resistance and electric strength 13 15 Mechanical strength .13 16 Resistance to heat17 1

25、7 Creepage distances, clearances and distances through sealing compound 17 18 Resistance of insulating material to abnormal heat and to fire 17 19 Resistance to tracking 17 20 Resistance to corrosion 17 21 Electromagnetic compatibility .17 Figure 101 Examples of suspension means .19 Figure 102 Incli

26、ned ceiling test 21 4 60670-21 CEI:2004 COMMISSION LECTROTECHNIQUE INTERNATIONALE _ BOTES ET ENVELOPPES POUR APPAREILLAGE LECTRIQUE POUR INSTALLATIONS LECTRIQUES FIXES POUR USAGES DOMESTIQUES ET ANALOGUES Partie 21: Rgles particulires concernant les botes et enveloppes avec dispositifs de suspension

27、 AVANT-PROPOS 1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation compose de lensemble des comits lectrotechniques nationaux (Comits nationaux de la CEI). La CEI a pour objet de favoriser la coopration internationale pour toutes les questions de norm

28、alisation dans les domaines de llectricit et de llectronique. A cet effet, la CEI entre autres activits publie des Normes internationales, des Spcifications techniques, des Rapports techniques, des Spcifications accessibles au public (PAS) et des Guides (ci-aprs dnomms “Publication(s) de la CEI“). L

29、eur laboration est confie des comits dtudes, aux travaux desquels tout Comit national intress par le sujet trait peut participer. Les organisations internationales, gouvernementales et non gouvernementales, en liaison avec la CEI, participent galement aux travaux. La CEI collabore troitement avec lO

30、rganisation Internationale de Normalisation (ISO), selon des conditions fixes par accord entre les deux organisations. 2) Les dcisions ou accords officiels de la CEI concernant les questions techniques reprsentent, dans la mesure du possible, un accord international sur les sujets tudis, tant donn q

31、ue les Comits nationaux de la CEI intresss sont reprsents dans chaque comit dtudes. 3) Les Publications de la CEI se prsentent sous la forme de recommandations internationales et sont agres comme telles par les Comits nationaux de la CEI. Tous les efforts raisonnables sont entrepris afin que la CEI

32、sassure de lexactitude du contenu technique de ses publications; la CEI ne peut pas tre tenue responsable de lventuelle mauvaise utilisation ou interprtation qui en est faite par un quelconque utilisateur final. 4) Dans le but dencourager luniformit internationale, les Comits nationaux de la CEI sen

33、gagent, dans toute la mesure possible, appliquer de faon transparente les Publications de la CEI dans leurs publications nationales et rgionales. Toutes divergences entre toutes Publications de la CEI et toutes publications nationales ou rgionales correspondantes doivent tre indiques en termes clair

34、s dans ces dernires. 5) La CEI na prvu aucune procdure de marquage valant indication dapprobation et nengage pas sa responsabilit pour les quipements dclars conformes une de ses Publications. 6) Tous les utilisateurs doivent sassurer quils sont en possession de la dernire dition de cette publication

35、. 7) Aucune responsabilit ne doit tre impute la CEI, ses administrateurs, employs, auxiliaires ou mandataires, y compris ses experts particuliers et les membres de ses comits dtudes et des Comits nationaux de la CEI, pour tout prjudice caus en cas de dommages corporels et matriels, ou de tout autre

36、dommage de quelque nature que ce soit, directe ou indirecte, ou pour supporter les cots (y compris les frais de justice) et les dpenses dcoulant de la publication ou de lutilisation de cette Publication de la CEI ou de toute autre Publication de la CEI, ou au crdit qui lui est accord. 8) Lattention

37、est attire sur les rfrences normatives cites dans cette publication. Lutilisation de publications rfrences est obligatoire pour une application correcte de la prsente publication. 9) Lattention est attire sur le fait que certains des lments de la prsente Publication de la CEI peuvent faire lobjet de

38、 droits de proprit intellectuelle ou de droits analogues. La CEI ne saurait tre tenue pour responsable de ne pas avoir identifi de tels droits de proprit et de ne pas avoir signal leur existence. La Norme internationale CEI 60670-21 a t tablie par le sous-comit 23B: Prises de courant et interrupteur

39、s, du comit dtudes 23 de la CEI: Petit appareillage. 60670-21 IEC:2004 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ BOXES AND ENCLOSURES FOR ELECTRICAL ACCESSORIES FOR HOUSEHOLD AND SIMILAR FIXED ELECTRICAL INSTALLATIONS Part 21: Particular requirements for boxes and enclosures with provision for s

40、uspension means FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standa

41、rdization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparatio

42、n is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with t

43、he International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subject

44、s since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical co

45、ntent of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent poss

46、ible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equip

47、ment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IE

48、C National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the pos

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