1、 IEC 60811-502 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 502: Mechanical tests Shrinkage test for insulations Cbles lectriques et fibres optiques Mthodes dessai pour les matriaux non-mtalliques Parti
2、e 502: Essais mcaniques Essai de rtraction des enveloppes isolantes IEC60811-502:2012 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 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
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16、ns contactez-nous: csciec.ch. IEC 60811-502 Edition 1.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Electric and optical fibre cables Test methods for non-metallic materials Part 502: Mechanical tests Shrinkage test for insulations Cbles lectriques et fibres optiques Mthodes dessai pour les
17、matriaux non-mtalliques Partie 502: Essais mcaniques Essai de rtraction des enveloppes isolantes INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE H ICS 29.035.01; 29.060.20 PRICE CODE CODE PRIX ISBN 978-2-88912-976-8 Registered trademark of the International Elect
18、rotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 60811-502 IEC:2012 CONTENTS FO
19、REWORD . 3 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Test method . 6 4.1 General . 6 4.2 Test equipment . 6 4.3 Sampling . 6 4.4 Preparation of test pieces 6 4.5 Test procedure 7 4.6 Expression of results . 7 5 Test report 7 60811-502 IEC:2012 3 INTERNATIONAL ELECTROTECHNI
20、CAL COMMISSION _ ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 502: Mechanical tests Shrinkage test for insulations FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnica
21、l 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, Te
22、chnical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, govern
23、mental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or
24、 agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international
25、 use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical 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 p
26、romote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly in
27、dicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies.
28、 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 committees and IEC National Committees for any personal injury, property da
29、mage 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 pu
30、blication. 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
31、 such patent rights. International Standard IEC 60811-502 has been prepared by IEC technical committee 20: Electric cables. This Part 502 of IEC 60811 cancels and replaces Clause 10 of IEC 60811-1-3:1993, which is withdrawn. Full details of the replacements are shown in Annex A of IEC 60811-100:2012
32、. There are no specific technical changes with respect to the previous edition, but see the Foreword to IEC 60811-100:2012. 4 60811-502 IEC:2012 The text of this standard is based on the following documents: FDIS Report on voting 20/1298/FDIS 20/1347/RVD Full information on the voting for the approv
33、al 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. This part of IEC 60811 shall be used in conjunction with IEC 60811-100. A list of all the parts in the IEC 60811 series, publish
34、ed under the general title Electric and optical fibre cables Test methods for non-metallic materials, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.ie
35、c.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. 60811-502 IEC:2012 5 INTRODUCTION The IEC 60811 series specifies the test methods to be used for testing non-metallic materials of all types
36、 of cables. These test methods are intended to be referenced in standards for cable construction and for cable materials. NOTE 1 Non-metallic materials are typically used for insulating, sheathing, bedding, filling or taping within cables. NOTE 2 These test methods are accepted as basic and fundamen
37、tal and have been developed and used over many years principally for the materials in all energy cables. They have also been widely accepted and used for other cables, in particular optical fibre cables, communication and control cables and cables for ships and offshore applications. 6 60811-502 IEC
38、:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 502: Mechanical tests Shrinkage test for insulations 1 Scope This Part 502 of IEC 60811 gives the test method for the shrinkage for insulations. 2 Normative references The following documents, in whole or in part, a
39、re 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. IEC 60811-100:2012, Electric and optical fibre cables
40、Test methods for non-metallic materials Part 100: General 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60811-100 apply. 4 Test method 4.1 General This part of IEC 60811 shall be used in conjunction with IEC 60811-100. 4.2 Test equipment The test e
41、quipment shall be as follows: an air oven, electrically heated, capable of maintaining the test temperature; a measuring device with a scale division of 0,5 mm. 4.3 Sampling One sample about 1,5 L mm in length of each core to be tested shall be taken at least 0,5 m away from the end of the cable len
42、gth. L is the length given in the relevant cable standard. 4.4 Preparation of test pieces All coverings, except adherent, extruded semi-conducting screens, if any, shall be removed from the samples of insulated conductor. Within an interval of not more than 5 min from the time of cutting the samples
43、, a test length of L 5 mm shall be marked on the middle part of each piece of core. The distance between the marks shall be measured to an accuracy of 0,5 mm. Each test piece shall then be 60811-502 IEC:2012 7 prepared by cutting and removing the insulation from both ends of each sample up to positi
44、ons between 2 mm and 5 mm away from the marks. 4.5 Test procedure Each test piece shall be supported horizontally in the air oven preheated to the temperature specified in the cable standard by the bare ends of conductors or on the surface of a preheated talc bath, to permit free movement of the ins
45、ulation. Each test piece should remain in the oven for the time specified in the cable standard. Each test piece shall then be removed from the oven and allowed to cool in air to room temperature and the distance between the two marks on each piece measured again to the nearest 0,5 mm. 4.6 Expressio
46、n of results The percentage shrinkage L is the difference between the distances between the marks before the heat treatment (L1) and after the heating and cooling (L2), recorded as a percentage of the distance between the marks before the treatment: L = %100121LLL5 Test report The test report shall
47、be in accordance with that given in IEC 60811-100. 8 60811-502 IEC:2012 Bibliography IEC 60811-1-3:1993, Insulating and sheathing materials of electric cables - Common test methods Part 1: General application v Section 3: Methods for determining the density Water absorption tests Shrinkage test (wit
48、hdrawn) _ 10 60811-502 CEI:2012 SOMMAIRE AVANT-PROPOS 11 1 Domaine dapplication 14 2 Rfrences normatives . 14 3 Termes et dfinitions 14 4 Mthode dessai . 14 4.1 Gnralits 14 4.2 Equipement dessai . 14 4.3 Echantillon 14 4.4 Prparation des prouvettes 14 4.5 Mode opratoire 15 4.6 Expression des rsultat
49、s . 15 5 Rapport dessai 15 60811-502 CEI:2012 11 COMMISSION LECTROTECHNIQUE INTERNATIONALE _ CBLES LECTRIQUES ET FIBRES OPTIQUES MTHODES DESSAI POUR LES MATRIAUX NON-MTALLIQUES Partie 502: Essais mcaniques Essai de rtraction des enveloppes isolantes AVANT-PROPOS 1) La Commission Electrotechnique Internationale (CEI)
