IEC_pas_60099-7ed1.0en.pdf

PUBLICLY AVAILABLE SPECIFICATION IEC PAS 60099-7 First edition2004-04 Surge arresters Part 7:Glossary of terms and definitions from IEC publications 60099-1,60099-4,60099-6,61643-1,61643-12,61643-21,61643-311,61643-321,61643-331 and 61643-341 Reference number IEC/PAS 60099-7:2004(E)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committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also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.chTel:+41 22 919 02 11 Fax:+41 22 919 03 00 PUBLICLY AVAILABLE SPECIFICATIONIEC PAS 60099-7 First edition2004-04 Surge arresters Part 7:Glossary of terms and definitions from IEC publications 60099-1,60099-4,60099-6,61643-1,61643-12,61643-21,61643-311,61643-321,61643-331 and 61643-341 PRICE CODE IEC 2004 Copyright-all rights reserved 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 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 XA For price,see current catalogue Commission Electrotechnique InternationaleInternational Electrotechnical Commission 2 PAS 60099-7 IEC:2004(E)CONTENTS FOREWORD.3 1 Scope.4 2 Surge arresters Non-linear resistor type gapped surge arresters for a.c.systems(IEC 60099-1:1991+A1:1999).4 3 Surge arresters Metal-oxide surge arresters without gaps for a.c.systems(IEC 60099-4:1991+A1:1998+A2:2001).9 4 Surge protective devices connected to low-voltage power distribution systems Performance requirements and testing methods(IEC 61643-1:1998+A1:2001).16 5 Low-voltage surge protective devices Surge protective devices connected to telecommunications and signalling networks Performance requirements and testing methods(IEC 61643-21:2000).21 6 Components for low-voltage surge protective devices Specification for gas discharge tubes(GDT)(IEC 61643-311:2001).24 7 Components for low-voltage surge protective devices Specifications for avalanche breakdown diode(ABD)(IEC 61643-321:2001).26 8 Components for low-voltage surge protective devices Specification for metal oxide varistors(MOV)(IEC 61643-331:2001).28 9 Components for low-voltage surge protective devices Specification for thyristor surge suppressors(TSS)(IEC 61643-341:2003).30 10 Low-voltage surge protective devices Surge protective devices connected to low-voltage power distribution systems Selection and application prin-ciples(IEC 61643-12:2002).40 11 Surge arresters Surge arresters containing both series and parallel gapped structures Rated 52 kV and less(IEC 60099-6:2002).46 PAS 60099-7 IEC:2004(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ SURGE ARRESTERS Part 7:Glossary of terms and definitions from IEC publications 60099-1,60099-4,60099-6,61643-1,61643-12,61643-21,61643-311,61643-321,61643-331 and 61643-341 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 standardization in the electrical and electronic fields.To this end and in addition to other activities,IEC publishes International Standards,Technical Specifications,Technical Report