1、 IEC 60229Edition 3.0 2007-10INTERNATIONAL STANDARD NORME INTERNATIONALEElectric cables Tests on extruded oversheaths with a special protective function Cbles lectriques Essais sur les gaines extrieures extrudes avec fonction spciale de protection IEC60229:2007THIS PUBLICATION IS COPYRIGHT PROTECTED
2、 Copyright 2007 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 membe
3、r 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. Droits de reproduction r
4、servs. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de la CEI ou du Comit national de la CEI du pays du demandeu
5、r. Si vous avez des questions sur le copyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de la CEI de votre pays de rsidence. IEC Central Office 3, rue de Varemb CH-1211 Geneva 20 Switzerland Em
6、ail: 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 publ
7、ications 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
8、, 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 It also gives information on projects, withdrawn and replaced publications.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
9、 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 onlin
10、e. 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 A propos de la CEI La Commission Ele
11、ctrotechnique Internationale (CEI) est la premire organisation mondiale qui labore et publie des normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications CEI Le contenu technique des publications de la CEI est constamment revu
12、. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm Le Catalogue en-ligne de la CEI vous permet deffectuer des recherches en utilisant diffrents critres (numro de rf
13、rence, texte, comit dtudes,). Il donne aussi des informations sur les projets et les publications retires ou remplaces. Just Published CEI: www.iec.ch/online_news/justpub Restez inform sur les nouvelles publications de la CEI. Just Published dtaille deux fois par mois les nouvelles publications paru
14、es. Disponible en-ligne et aussi par email. Electropedia: www.electropedia.org Le premier dictionnaire en ligne au monde de termes lectroniques et lectriques. Il contient plus de 20 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans les langues additionnelles. Eg
15、alement appel Vocabulaire Electrotechnique International en ligne. Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch
16、 Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 60229Edition 3.0 2007-10INTERNATIONAL STANDARD NORME INTERNATIONALEElectric cables Tests on extruded oversheaths with a special protective function Cbles lectriques Essais sur les gaines extrieures extrudes avec fonction spciale de protection INTERNAT
17、IONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE LICS 29.060.20 PRICE CODECODE PRIXISBN 2-8318-9338-0 2 60229 IEC:2007 CONTENTS FOREWORD.3 1 Scope.5 2 Normative references .5 3 Routine tests 5 3.1 D.C. voltage test .6 3.2 Spark test6 4 Type tests 6 4.1 Abrasion test .6 4.
18、1.1 Purpose.6 4.1.2 Test procedure 6 4.1.3 Inspection8 4.1.4 Performance requirement 8 4.2 Corrosion spread (aluminium metallic screen only)8 4.2.1 General .8 4.2.2 Test procedure 8 4.2.3 Inspection9 4.2.4 Performance requirement 9 5 Electrical test after installation9 Annex A (normative) Applicatio
19、n of the abrasion test .10 Annex B (informative) Guidance on tests after installation .11 Figure 1 Abrasion test7 Table 1 Vertical force on steel angle 7 Table 2 Impulse test voltage 8 60229 IEC:2007 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRIC CABLES TESTS ON EXTRUDED OVERSHEATHS WITH A S
20、PECIAL PROTECTIVE FUNCTION 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 concer
21、ning 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
22、 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates clo
23、sely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relev
24、ant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the t
25、echnical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum
26、extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible fo
27、r any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical commit
28、tees and IEC National Committees for any personal injury, property damage 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 Publication
29、s. 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 elements of this IEC Publication may be the subject of patent
30、 rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60229 has been prepared by IEC technical committee 20: Electric cables. This third edition cancels and replaces the second edition published in 1982 and constitutes a technical revisi
31、on. The significant technical changes with respect to the previous edition are as follows: The text has been modified in order to consider the function of the oversheath, irrespective of the way the metallic sheath or screen of the cable is earthed because, in some cases, the oversheath is designed
32、to act not only as a protection against corrosion, but also to reduce the risk of degradation of the cable insulation system. This requirement may be independent of the nature of the insulation and independent of the rated voltage of the cable. More precise wording has been introduced regarding the
33、application of some tests (if the sheaths or foils are bonded to the oversheath or not). The test requirements have been revised in order to be in line with the standards published after the second edition. 4 60229 IEC:2007 The pressure test at high temperature has been deleted as the requirement is
34、 specified in the relevant cable standards. A “Guidance on tests after installation” (Annex B) has been included. The text of this standard is based on the following documents: FDIS Report on voting 20/901/FDIS 20/908/RVD Full information on the voting for the approval of this standard can be found
35、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 maintenance result date indicated on the IEC web site under “http
36、:/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. 60229 IEC:2007 5 ELECTRIC CABLES TESTS ON EXTRUDED OVERSHEATHS WITH A SPECIAL PROTECTIVE FUNCTION 1 Scope This International St
37、andard provides a range of tests which may be required for electric cables which have an extruded oversheath and where that oversheath performs a special protective function. NOTE 1 The need for the special functions may be independent of the nature of the insulation type or independent of the rated
38、 voltage of the cable. The standard covers cables for use in insulated systems and in uninsulated systems. The tests are categorized for use as a) routine tests, b) type tests, c) tests after installation. These tests comprise: electrical routine tests on cable oversheath used in insulated or uninsu
39、lated systems, abrasion and corrosion spread type tests, electrical test on cable oversheath after installation. Routine tests and tests after installation, as specified in the relevant cable standards, are applicable for all situations. Type tests depend upon the nature of the system and the constr
40、uction of the cable and do not have to be carried out for normal conditions of use. The application of the abrasion test is given in Annex A. NOTE 2 Guidance on tests after installation is given in Annex B. 2 Normative references The following referenced documents are indispensable for the applicati
41、on of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60230, Impulse tests on cables and their accessories IEC 62230, Electric cables Spark test method 3 Routine tests T
42、he electrical integrity of the oversheath shall be tested using either a d.c. voltage test (3.1) or a spark test (3.2). 6 60229 IEC:2007 NOTE The spark test method is not applicable when a conducting layer is already applied to the oversheath. In such cases only the test according to 3.1 may be used
43、. Testing is applicable in all cases. 3.1 D.C. voltage test A d.c. voltage of 8 kV per millimetre of the specified nominal thickness of the extruded oversheath shall be applied for 1 min between the underlying metal layer at negative polarity and the outer conducting layer, subject to a maximum volt
44、age of 25 kV. No breakdown of the oversheath shall occur during the test. NOTE The outer conducting layer may consist of a conductive layer applied to the extruded oversheath or obtained by immersion in water for the duration of the test. 3.2 Spark test A spark test according to the method given in
45、IEC 62230 shall be carried out by earthing the underlying metallic layer for an a.c. test or connecting it to the negative pole in the case of a d.c. supply. The voltages shall be 6 kV a.c. per millimetre or 9 kV d.c. per millimetre of the specified nominal thickness of the extruded oversheath, subj
46、ect to maximum values of 15 kV a.c. and 25 kV d.c., respectively. The dwell time of the cable in the region of test shall be of sufficient duration to detect any defect. No faults shall be detected during the test. 4 Type tests 4.1 Abrasion test 4.1.1 Purpose The purpose of this test is to demonstra
47、te that the extruded oversheath will withstand abrasion during the laying operation. The abrasion test shall be carried out if the oversheath material is not of type ST1, ST2, ST3 or ST7 compound and if the thickness does not comply with the particular IEC cable standard. 4.1.2 Test procedure A samp
48、le of the cable, of sufficient length, shall be submitted to the bending operation given in the bending test, as specified in the particular IEC cable standard. After bending, the procedure specified in 4.1.2.1 shall be carried out at a temperature of (20 5) C for cases a) and b), as described in An
49、nex A. This shall be followed by the electrical test in 4.1.2.2 for case a) only. 4.1.2.1 Abrasion The sample of cable shall be laid out straight and horizontal on a firm base, with the plane of the previous bending operation in the horizontal plane. In the middle of the sample and perpendicular to it, a length of mild steel angle shall be placed horizontally, at right angles to the cable, with its angle ed
