IEC_TR_61901-2016.pdf

IEC TR 61901 Edition 2.0 2016-05 TECHNICAL REPORT Tests recommended on cables with a longitudinally applied metal foil for rated voltages above 30 kV(Um=36 kV)up to and including 500 kV(Um=550 kV)IEC TR 61901:2016-05(en)THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 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 Tel.:+41 22 919 02 11 3,rue de Varemb Fax:+41 22 919 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 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.IEC Catalogue-webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information 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by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,replaced and withdrawn publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications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 email.Electropedia-www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing 20 000 terms and definitions in English and French,with equivalent terms in 15 additional languages.Also known as the International Electrotechnical Vocabulary(IEV)online.IEC Glossary-std.iec.ch/glossary 65 000 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 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.IEC TR 61901 Edition 2.0 2016-05 TECHNICAL REPORT Tests recommended on cables with a longitudinally applied metal foil for rated voltages above 30 kV(Um=36 kV)up to and including 500 kV(Um=550 kV)INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 29.060.20 ISBN 978-2-8322-3386-3 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.2 IEC TR 61901:2016 IEC 2016 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Terms and definitions.7 3.1 Definitions concerning the tests.7 3.2 Definitions concerning cable design.8 3.3 Other definitions.8 4 Development tests.8 4.1 Tests on cables.8 4.1.1 Impact test.8 4.1.2 Abrasion test.10 4.1.3 Sidewall loading test.11 4.1.4 Long-term ageing of adhesive bonds of components of laminated covering.13 4.1.5 Mechanical properties of the weld(case of CD design).13 4.2 Tests on cable systems.14 4.2.1 General.14 4.2.2 Short-circuit test.15 4.2.3 Corrosion at the accessories.18 5 Type tests.18 5.1 Test on cables Bending test.18 5.2 Tests on cable system.19 6 Sample test on cables.19 6.1 Adhesion and peel strength of the laminated metal foil.19 6.2 Electrical properties and dimensions.21 7 Routine tests.21 8 After installation tests.21 Annex A(informative)Details on cable designs given in 3.2.22 A.1 Combined design(CD).22 A.2 Separate design(SD).22 A.3 Separate semi-conductive design(SscD).23 Bibliography.25 Figure 1 Test apparatus for the impact test.9 Figure 2 Positions of the points of impact.9 Figure 3 Deformation at the impact points to be examined.10 Figure 4 Test arrangement for the abrasion test.11 Figure 5 Sidewall loading test arrangements.12 Figure 6 Test arrangement for the measurement of the mechanical properties of the weld.14 Figure 7 Short-circuit test arrangement for three kinds of joints.16 Figure 8 Adhesion of metal foil.20 Figure 9 Example of overlapped metal foil.21 Figure 10 Peel strength of overlapped metal foil.21 IEC TR 61901:2016 IEC 2016 3 Figure A.1 Example of combined design 500 kV cable.22 Figure A.2 Example of separate design 400 kV cable.23 Figure A.3 Example of separate sem