1、 IEC 61467 Edition 1.0 2008-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Insulators for overhead lines Insulator strings and sets for lines with a nominal voltage greater than 1 000 V AC power arc tests Isolateurs pour lignes ariennes Chanes disolateurs et chanes disolateurs quipes pour lignes de
2、tension nominale suprieure 1 000 V Essais darc de puissance en courant alternatif IEC 61467:2008 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or b
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16、 commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61467 Edition 1.0 2008-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Insulators for overhead lines Insulator strin
17、gs and sets for lines with a nominal voltage greater than 1 000 V AC power arc tests Isolateurs pour lignes ariennes Chanes disolateurs et chanes disolateurs quipes pour lignes de tension nominale suprieure 1 000 V Essais darc de puissance en courant alternatif INTERNATIONAL ELECTROTECHNICAL COMMISS
18、ION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 29.080.10; 29.240.20 PRICE CODE CODE PRIX ISBN 2-8318-9953-2 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61467 IEC:2008 CONTENTS FOREWORD.4 1 Scope and objec
19、t6 2 Normative references .6 3 Terms and definitions .6 4 Symbols and abbreviations.7 5 Characteristics of the test current.8 6 Supply and return circuit conditions9 7 Tests on insulator sets .11 7.1 General remarks11 7.2 Test arrangement11 7.3 Test current.11 7.4 Supply and return circuit condition
20、s.11 7.5 Arc initiation 12 7.6 Ambient conditions14 7.7 Test series and characteristics of the power arcs 14 8 Tests on short strings .14 8.1 General remark .14 8.2 Test arrangement15 8.3 Test current.15 8.4 Supply and return circuit conditions.15 8.5 Arc initiation 15 8.6 Ambient conditions15 8.7 T
21、est series and characteristics of the power arcs 16 9 Test report18 10 Evaluation of results.18 10.1 General remark .18 10.2 Visual examination 18 10.3 Porcelain or glass insulators18 10.4 Composite insulators.19 10.5 Acceptance criteria19 Annex A (normative) Examples of test arrangements and practi
22、cal methods of tower simulation (return circuit) 20 Annex B (normative) Determination of the r.m.s. value of the current.25 Annex C (informative) No-load voltage of the power source .27 Annex D (informative) Power arcs on insulator sets and their true simulation by appropriate positioning of fusible
23、 wires .28 Annex E (informative) Wind velocity during power arc tests .30 Annex F (informative) Variation of the fault current magnitude and reasons for the choice of the prescribed test parameters 31 Annex G (informative) Recommendations for the test report 33 Annex H (informative) Sample of a powe
24、r arc test report .37 Bibliography40 Figure 1 Illustration of supply and return currents 10 Figure 2 Arc initiation.13 61467 IEC:2008 3 Figure 3 Mounting arrangement for short strings17 Figure A.1 Test arrangement of vertical insulator set .21 Figure A.2 Test arrangement of vertical insulator set us
25、ing simplified tower steel structure .22 Figure A.3 Test arrangement of Vee insulator set located in the centre of the tower (for the simplified tower steel structure and return circuit, see Figures A.1 and A.2)23 Figure A.4 Test arrangement of horizontal insulator (for the simplified tower steel st
26、ructure and return circuit, see Figures A.1 and A.2) .24 Figure D.1 5 kA power arc test of a 145 kV string consisting of 7 cap and pin units.29 Figure F.1 Distribution of arc current (I) and its supply circuit components (I S1 , I S2 ) along a 100 km long, 145 kV line connecting busbars of 28 kA sho
27、rt-circuit current 32 Table 1 Supply and return conditions .9 Table 2 Test series for insulator sets .14 Table 3 Test series for short insulator strings.16 Table 4 Test assessment criteria .19 4 61467 IEC:2008 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INSULATORS FOR OVERHEAD LINES INSULATOR STRING
28、S AND SETS FOR LINES WITH A NOMINAL VOLTAGE GREATER THAN 1 000 V AC POWER ARC TESTS 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 p
29、romote 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 Guid
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37、ce upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. 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 ele
38、ments of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61467 has been prepared by subcommittee 36B: Insulators for overhead lines, of IEC technical committee 36: Insulators. This f
39、irst edition cancels and replaces IEC/TR 61467, which was published as a technical report in 1997. It constitutes a technical revision and now has the status of an International Standard. The text of this standard is based on the following documents: FDIS Report on voting 36B/277/FDIS 36B/280/RVD Fu
40、ll information on the voting for the approval of this standard 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. 61467 IEC:2008 5 The committee has decided that the contents of this publication will
41、 remain unchanged until the maintenance result date indicated on the IEC web site 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. 6 61467 IEC:2008 INSULATORS FOR OV
42、ERHEAD LINES INSULATOR STRINGS AND SETS FOR LINES WITH A NOMINAL VOLTAGE GREATER THAN 1 000 V AC POWER ARC TESTS 1 Scope and object This International Standard applies to insulator strings and sets comprising string insulator units of ceramic material, glass or composite material for use on a.c. ove
43、rhead lines and traction lines with a nominal voltage above 1 000 V and a frequency between 15 Hz and 100 Hz. This standard also applies to insulator strings or sets of similar design used in substations. This standard establishes a standard test procedure for power arc tests on insulator sets. It a
44、lso establishes a standard test procedure for power arc tests on short strings. This standard does not apply to insulator sets mounted on non-metallic poles or towers. This standard cannot be directly applied to line post insulators or sets, or to insulating structures such as braced line-posts, sin
45、ce their mounting arrangement cannot be reproduced by the standard arrangements as described herein. However, this standard can be used as a basis for agreement for tests on such insulators and arrangements. The object of this standard is to define the terms used, to prescribe a standard test proced
46、ure, to prescribe criteria to evaluate the results of the tests. Power arc tests are not an obligatory element of line insulator specifications. The standard test procedures and the evaluation criteria described in this standard are intended to provide testing guidance when power arc tests are felt
47、to be necessary. It is not the object of this standard to introduce a general obligation to execute these tests. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated referen
48、ces, the latest edition of the referenced document (including any amendments) applies. IEC 60797, Residual strength of string insulator units of glass or ceramic material for overhead lines after mechanical damage of the dielectric IEC 60826, Design criteria of overhead transmission lines 3 Terms an
49、d definitions For the purposes of this document, the following terms and definitions apply. NOTE Definitions of other terms used in this standard can be found in IEC 60050-471, IEC 60383-1 and IEC 60383-2. 61467 IEC:2008 7 3.1 test one application of the specified test current for the specified duration to the insulator string or set 3.2 test sequence three successive t
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