IEC TR 61901-2016 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 (U.pdf

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1、 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 (U m= 36 kV) up to and including 500 kV (U m= 550 kV) IEC TR 61901:2016-05(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC, Geneva, Sw

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4、emb 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 pu

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8、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 Vocabul

9、ary (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

10、 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

11、 foil for rated voltages above 30 kV (U m= 36 kV) up to and including 500 kV (U m= 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 a

12、n 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 o

13、n 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-c

14、ircuit 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 Afte

15、r 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

16、. 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

17、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

18、Figure A.3 Example of separate semi-conductive design 275 kV cable 24 Table 1 Impact test requirements . 9 Table 2 Maximum acceptable sidewall loadings 11 Table 3 Minimum acceptable adhesion or peel strength forces 19 4 IEC TR 61901:2016 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ TESTS REC

19、OMMENDED ON CABLES WITH A LONGITUDINALLY APPLIED METAL FOIL FOR RATED VOLTAGES ABOVE 30 kV (U m= 36 kV) UP TO AND INCLUDING 500 kV (U m= 550 kV) FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical co

20、mmittees (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, Techni

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28、e 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) Attention is drawn to the Normative references cited in this publi

29、cation. 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 shall not be held responsible for identifying any or all su

30、ch patent rights. The main task of IEC technical committees is to prepare International Standards. However, a technical committee may propose the publication of a Technical Report when it has collected data of a different kind from that which is normally published as an International Standard, for e

31、xample “state of the art“. IEC TR 61901, which is a Technical Report, has been prepared by IEC technical committee 20: Electric cables. This second edition cancels and replaces the first edition, published in 2005. This edition constitutes a technical revision. This edition includes the following si

32、gnificant technical changes with respect to the previous edition: a) Recommendations on the tests to be performed at the different stages of the cable and cable system qualification (development tests, type tests, sample tests, routine tests, after installation tests) have been provided. IEC TR 6190

33、1:2016 IEC 2016 5 b) The performance level of the tests related to the longitudinally applied metal foil which depends on the cable design has been detailed. c) Three cable designs that represent the world production of cables with longitudinally applied metal foil have been detailed. d) A test on t

34、he weld design has been included, following the appearance of a new cable design with smooth and longitudinally welded aluminium foil (referred to in this document as combined design). e) An examination of the cable at the end of the type test has been included. f) The cable system approach (cable w

35、ith installed accessories) has been considered and a short circuit test with accessories has been introduced. The text of this Technical Report is based on the following documents: Enquiry draft Report on voting 20/1551/DTR 20/1621/RVC Full information on the voting for the approval of this Technica

36、l Report 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 committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website

37、 under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. 6 IEC TR 61901:2016 IEC 2016 INTRODUCTION Nu

38、merous technical improvements have appeared on laminated coverings since 1992 and the publication of CIGRE Electra 1411 1 , in parallel with service experience. In 2006, CIGRE requested an upgrade of Electra 141 which was issued in February 2011 as Technical Brochure 4462. This new data was analysed

39、 and resulted in the revision of the first edition of IEC TR 61901. _ 1Numbers in brackets refer to the Bibliography. IEC TR 61901:2016 IEC 2016 7 TESTS RECOMMENDED ON CABLES WITH A LONGITUDINALLY APPLIED METAL FOIL FOR RATED VOLTAGES ABOVE 30 kV (U m= 36 kV) UP TO AND INCLUDING 500 kV (U m= 550 kV)

40、 1 Scope IEC TR 61901, which is a Technical Report, specifies test methods and requirements for power cable systems, cables with extruded insulation and their accessories for fixed installations, for rated voltages above 30 kV (U m= 36 kV) up to and including 500 kV (U m= 550 kV). The requirements a

41、pply to single-core cables and to their accessories for usual conditions of installation and operation, but not to special cables and their accessories, such as submarine cables, for which modifications to the tests may be necessary or special test conditions may need to be devised. 2 Normative refe

42、rences The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

43、There are no normative references in this document. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 Definitions concerning the tests 3.1.1 routine test test made by the manufacturer on each manufactured component (length of cable or accessory

44、) to check that the component meets the specified requirements 3.1.2 sample test test made by the manufacturer on samples of complete cable or components taken from a complete cable or accessory, at a specified frequency, so as to verify that the finished product meets the specified requirements 3.1

45、.3 development test test made during the development of the cable system 3.1.4 type test test made before supplying on a general commercial basis a type of cable system in order to demonstrate satisfactory performance characteristics to meet the intended application 8 IEC TR 61901:2016 IEC 2016 Note

46、 1 to entry: Once successfully completed, these tests need not be repeated, unless changes are made in the cable or accessory materials, or design or manufacturing process which might change the performance characteristics. 3.1.5 prequalification test test made before supplying on a general commerci

47、al basis a type of cable system in order to demonstrate satisfactory long term performance of the complete cable system 3.1.6 electrical test after installation test made to demonstrate the integrity of the cable system as installed 3.2 Definitions concerning cable design NOTE The following explanat

48、ions are definitions of general designs types and not related to any specific construction specified in any IEC standard. Technological advances may lead to developments of these examples. 3.2.1 combined design CD metal screen that combines radial watertightness and electrical properties Note 1 to e

49、ntry: More details are given in Clause A.1. 3.2.2 separate design SD design with radial watertightness and electrical properties, managed by different metal components Note 1 to entry: More details are given in Clause A.2. 3.2.3 separate semi-conductive design SscD design with separated electrical and radial watertightness properties with semi-conductive plastic coated foil Note 1 to entry: More details are given in Clause A.3. 3.3 Other definitions 3.3.1 cable system cab