IEC_61196-1-108-2011.pdf

IEC 61196-1-108 Edition 2.0 2011-11 INTERNATIONAL STANDARD Coaxial communication cables Part 1-108:Electrical test methods Test for characteristic impedance,phase and group delay,electrical length and propagation velocity IEC 61196-1-108:2011(E)colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2011 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 member 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.IEC Central Office 3,rue de Varemb CH-1211 Geneva 20 Switzerland Email:inmailiec.ch Web: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 technical 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.Catalogue of IEC publications:www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,withdrawn and replaced publications.IEC Just Published:www.iec.ch/online_news/justpub Stay up to date on all new IEC publications.Just Published details twice a month all new publications released.Available on-line and also by email.Electropedia:www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French,with equivalent terms in additional languages.Also known as the International Electrotechnical Vocabulary online.Customer Service Centre:www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC 61196-1-108 Edition 2.0 2011-11 INTERNATIONAL STANDARD Coaxial communication cables Part 1-108:Electrical test methods Test for characteristic impedance,phase and group delay,electrical length and propagation velocity INTERNATIONAL ELECTROTECHNICAL COMMISSION N ICS 33.120.10 PRICE CODE ISBN 978-2-88912-786-3 Registered trademark of the International Electrotechnical Commission colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 61196-1-108 IEC:2011(E)CONTENTS FOREWORD.3 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Parameters.5 5 Test method.6 5.1 Equipment.6 5.2 Test sample.6 5.3 Procedure.7 6 Expression of test results.7 6.1 Phase constant.7 6.2 Phase and group delay.8 6.3 Velocity of propagation.8 6.4 Electrical length.8 6.5 Characteristic impedance.9 7 Test report.9 8 Requirements.9 Annex A(normative)Phase dispersion measurement of coaxial cables.10 Bibliography.14 Figure 1 Phase shift expanded.7 Figure A.1 Phase dispersion of 1/2 cable with deeply corrugated outer conductor.13 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.61196-1-108 IEC:2011(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ COAXIAL COMMUNICATION CABLES Part 1-108:Electrical test methods Test for characteristic impedance,phase and group delay,electrical length and propagation velocity 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 Reports,Publicly Available Specifications(PAS)and Guides(hereafter referred to as“IEC Publication(s)”).Their preparation is entrusted to technical committees;any IEC National