IEC_61634ed1.0en-1995.pdf

High-voltage switchgear and controlgear Use and handling of sulphur hexafluoride(SF6)in high-voltage switchgear and controlgearReference numberIEC/TR 61634:1995(E)TECHNICALREPORTIECTR 61634First edition1995-04This English-language version is derived from the originalbilingual publication by leaving out all French-languagepages.Missing page numbers correspond to the French-language pages.Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editions The IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication,as well as the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publications The on-line catalogue on the IEC web site(www.iec.ch/searchpub)enables you to search by a variety of criteria including text searches,technical committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 High-voltage switchgear and controlgear Use and handling of sulphur hexafluoride(SF6)in high-voltage switchgear and controlgearFor price,see current catalogue IEC 1995 Copyright-all rights reservedNo 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 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.chTECHNICALREPORTIECTR 61634First edition1995-04XCCommission Electrotechnique InternationaleInternational Electrotechnical Commission PRICE CODE Standards SurveyThe IEC would like to offer you the best quality standards possible.To make sure that wecontinue to meet your needs,your feedback is essential.Would you please take a minuteto answer the questions overleaf and fax them to us at+41 22 919 03 00 or mail them tothe address below.Thank you!Customer Service Centre(CSC)International Electrotechnical Commission3,rue de Varemb1211 Genve 20SwitzerlandorFax to:IEC/CSC at+41 22 919 03 00Thank you for your contribution to the standards-making process.Non affrancareNo stamp requiredNicht frankierenNe pas affranchir A PrioritaireRPONSE PAYESUISSECustomer Service Centre(CSC)International Electrotechnical Commission3,rue de Varemb1211 GENEVA 20SwitzerlandQ1Please report on ONE STANDARD andONE STANDARD ONLY.Enter the exactnumber of the standard:(e.g.60601-1-1).Q2Please tell us in what capacity(ies)youbought the standard(tick all that apply).I am the/a:purchasing agent?librarian?researcher?design engineer?safety engineer?testing engineer?marketing specialist?other.Q3I work for/in/as a:(tick all that apply)manufacturing?consultant?government?test/certification facility?public utility?education?military?other.Q4 This standard will be used for:(tick all that apply)general reference?product research?product design/development?specifications?tenders?quality assessment?certification?technical documentation?thesis?manufacturing?other.Q5This standard meets my needs:(tick one)not at all?nearly?fairly well?exactly?Q6If you ticked NOT AT ALL in Question 5the reason is:(tick all that apply)standard is out of date?standard is incomplete?standard is too academic?standard is too superficial?title is misleading?I made the wrong choice?other.Q7Please assess the standard in thefollowing categories,usingthe numbers:(1)unacceptable,(2)below average,(3)average,(4)above average,(5)exceptional,(6)not applicable timeliness.quality of writing.technical contents.logic of arrangement of contents.tables,charts,graphs,figures.other.Q8I read/use the:(tick one)French text only?English text only?both English and French texts?Q9Ple