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    IEC 60079-5-2015 Explosive atmospheres - Part 5 Equipment protection by powder filling q 《爆炸性环境.第5部分 粉末填充 q 类型的设备防护》.pdf

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    IEC 60079-5-2015 Explosive atmospheres - Part 5 Equipment protection by powder filling q 《爆炸性环境.第5部分 粉末填充 q 类型的设备防护》.pdf

    1、 IEC 60079-5 Edition 4.0 2015-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Explosive atmospheres Part 5: Equipment protection by powder filling “q” Atmosphres explosives Partie 5: Protection du matriel par remplissage pulvrulent “q” IEC 60079-5:2015-02(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTE

    2、D Copyright 2015 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, including photocopying and microfilm, without permission in writing from either IEC or IECs memb

    3、er 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 below or your local IEC member National Committee for further information. Droits de reproduction

    4、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 et les microfilms, sans laccord crit de lIEC ou du Comit national de lIEC du pays du demandeur.

    5、Si vous avez des questions sur le copyright de lIEC ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de lIEC de votre pays de rsidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919

    6、03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The techn

    7、ical 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. IEC Catalogue - webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical inform

    8、ation on IEC International Standards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria (reference number, t

    9、ext, technical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications released. Available online and also once a month by emai

    10、l. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in 15 additional languages. Also known as the International Electrotechnical Vocabulary (IEV)

    11、online. IEC Glossary - std.iec.ch/glossary More than 60 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC

    12、 Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. A propos de lIEC La Commission Electrotechnique Internationale (IEC) est la premire organisation mondiale qui lab

    13、ore et publie des Normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications IEC Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou am

    14、endement peut avoir t publi. Catalogue IEC - webstore.iec.ch/catalogue Application autonome pour consulter tous les renseignements bibliographiques sur les Normes internationales, Spcifications techniques, Rapports techniques et autres documents de lIEC. Disponible pour PC, Mac OS, tablettes Android

    15、 et iPad. Recherche de publications IEC - www.iec.ch/searchpub La recherche avance permet de trouver des publications IEC en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informations sur les projets et les publications remplaces ou retires. IEC Just Publ

    16、ished - webstore.iec.ch/justpublished Restez inform sur les nouvelles publications IEC. Just Published dtaille les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.electropedia.org Le premier dictionnaire en ligne de termes lectroniques et l

    17、ectriques. Il contient plus de 30 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans 15 langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (IEV) en ligne. Glossaire IEC - std.iec.ch/glossary Plus de 60 000 entres terminologiques le

    18、ctrotechniques, en anglais et en franais, extraites des articles Termes et Dfinitions des publications IEC parues depuis 2002. Plus certaines entres antrieures extraites des publications des CE 37, 77, 86 et CISPR de lIEC. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commenta

    19、ires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60079-5 Edition 4.0 2015-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Explosive atmospheres Part 5: Equipment protection by powder filling “q” Atmosphres explosives Partie 5: Protection du matriel par remplissa

    20、ge pulvrulent “q” INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.260.20 ISBN 978-2-8322-2249-2 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you

    21、obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 60079-5:2015 IEC 2015 CONTENTS FOREWORD . 4 1 Scope 6 2 Normative references. 6 3 Terms and definitions 7 4 Constructional requirements 7 4

    22、.1 Containers 7 4.1.1 Closing and sealing 7 4.1.2 Pressure test of container 8 4.1.3 Degree of protection of the container 8 4.1.4 Filling procedure 8 4.1.5 Containers that are not external enclosures 8 4.2 Filling material 9 4.2.1 Material specification . 9 4.2.2 Documentation . 9 4.2.3 Testing 9 4

    23、.3 Distances 9 4.3.1 Distances through filling material 9 4.3.2 Distances surrounding free space . 11 4.4 Connections 12 4.4.1 Equipment . 12 4.4.2 Ex Components . 12 4.5 Capacitors 12 4.6 Cells and batteries 12 4.7 Temperature limitations under overload conditions . 12 4.8 Temperature limitations u

    24、nder malfunction conditions 12 4.8.1 General . 12 4.8.2 Fuse 12 4.8.3 Malfunction exclusions . 13 4.8.4 Protective devices for temperature limitation . 16 4.8.5 Power supply prospective short-circuit current 16 5 Verifications and tests . 16 5.1 Type verifications and tests . 16 5.1.1 Pressure type

    25、test of container . 16 5.1.2 Verification of the degree of protection of the enclosure 17 5.1.3 Dielectric strength test of the filling material . 17 5.1.4 Maximum temperatures 17 5.2 Routine verifications and tests . 18 5.2.1 Routine pressure test of container 18 5.2.2 Dielectric strength test of t

    26、he filling material . 18 6 Marking . 19 7 Instructions 20 Bibliography . 21 IEC 60079-5:2015 IEC 2015 3 Figure 1 Distances through filling material 11 Figure 2 Test arrangement for the dielectric strength test of the filling material . 19 Table 1 Distances through the filling material 10 Table 2 Cre

    27、epage distances and distances through filling material 15 4 IEC 60079-5:2015 IEC 2015 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ EXPLOSIVE ATMOSPHERES Part 5: Equipment protection by powder filling “q” FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for s

    28、tandardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes

    29、 International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may parti

    30、cipate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement be

    31、tween 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 subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publicat

    32、ions 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 content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for

    33、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 possible in their national and regional publications. Any divergence between any IEC Publication and the correspondi

    34、ng national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any se

    35、rvices carried out by independent certification bodies. 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 IEC N

    36、ational 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) Attentio

    37、n 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 possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC s

    38、hall not be held responsible for identifying any or all such patent rights. International Standard IEC 60079-5 has been prepared by IEC technical committee 31: Equipment for explosive atmospheres. This fourth edition cancels and replaces the third edition, published in 2007, and constitutes a techni

    39、cal revision. This edition includes the following significant technical changes with respect to the previous edition: NOTE The technical changes referred to include the significant technical changes in the revised IEC standard, but they do not form an exhaustive list of all modifications from the pr

    40、evious edition. More guidance may be found by referring to the redline version of the IEC standard, if available. IEC 60079-5:2015 IEC 2015 5 Type Significant changes Clause/subclause Minor and editorial changes Extension Major technical changes Specific references to IEC 60079-0 have been reworded

    41、so the references to IEC 60079-0 can be non-dated references 4.1.3 4.8 4.8.3 X The “housing” surrounding the powder filled equipment or Ex Component has been redefined as a “container” to avoid confusion with the “enclosure” requirements of IEC 60079-0 4.1 X A relaxation has been introduced to permi

    42、t reduced distances through filling material for instances where there is no adjacent gap in the container 4.3.1 X A relaxation has been introduced to permit the use of creepage dimensions per IEC 60079-7 where CTI is better than 175 4.8.3 X An evaluation of joints employed when the reduced distance

    43、s according to Table 1 are applied, has been added. 5.1.1 X Text for determination of maximum temperature clarified with respect to overloads and malfunctions 5.1.4 X A batch routine test has been introduced 5.2.1 X The text of this standard is based on the following documents: FDIS Report on voting

    44、 31/1156/FDIS 31/1171/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The list of all parts of IEC 60079 series, under the gene

    45、ral title Explosive atmospheres, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, t

    46、he publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 IEC 60079-5:2015 IEC 2015 EXPLOSIVE ATMOSPHERES Part 5: Equipment protection by powder filling “q” 1 Scope This part of IEC 60079 contains specific requirements for the construction, testing and marking of el

    47、ectrical equipment, parts of electrical equipment and Ex components in the type of protection powder filling “q”, intended for use in explosive gas atmospheres. NOTE 1 Electrical equipment and Ex components protected by powder filling “q” can contain electronic circuits, transformers, protection fus

    48、es, relays, intrinsically safe electrical apparatus, associated electrical apparatus, switches, etc. NOTE 2 Type of protection powder filling “q” provides Equipment Protection Level (EPL) Gb or Mb. This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of

    49、 this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard takes precedence. This standard applies to electrical equipment, parts of electrical equipment and Ex components with: a rated supply current less than or equal to 16 A; a rated supply voltage less than or equal to 1 000 V; a rated power consumption less than or equal to 1 000 W. 2 Normative references The following documents, in who


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