1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationElectric and optical fibre cables Test methods for non-metallic materialsPart 502: Mechanical tests Shrinkage test for insulationsBS EN 60811-502:2012National forewordThis Britis
2、h Standard is the UK implementation of EN 60811-502:2012. It isidentical to IEC 60811-502:2012.In the UK, the relationship between the supersessions of BS EN 60811 seriescan be summarized as follows.Superseded standards are withdrawnThe UK participation in its preparation was entrusted by Technical
3、CommitteeGEL/20, Electric cables, to Subcommittee GEL/20/17, Electric Cables - Lowvoltage.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for
4、 its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 65324 7ICS 29.035.01; 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the Standard
5、sPolicy and Strategy Committee on 31 July 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60811-502:2012BS EN 60811-100 together with Supersedes - -201, -202, -203, -501 BS EN 60811-1-1:1995 -301, -302, -411, -601, -602, -603, -604 BS EN 60811-5-1:2000 -401,
6、-412 BS EN 60811-1-2:1995 -402, -502, -503, -606 BS EN 60811-1-3:1995 -403, -404, -507 BS EN 60811-2-1:1998 -405, -409 BS EN 60811-3-2:1995 -406, -511, -605, -607 BS EN 60811-4-1:2004 -407, -408, -410, -510, -512, -513 BS EN 60811-4-2:2004 -504, -505, -506 BS EN 60811-1-4:1995 -508, -509 BS EN 60811
7、-3-1:1995EUROPEAN STANDARD EN 60811-502 NORME EUROPENNE EUROPISCHE NORM June 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 20
8、12 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60811-502:2012 E ICS 29.035.01; 29.060.20 Supersedes EN 60811-1-3:1995 (partially) + A1:2001 (partially)English version Electric and optical fibre cables - Test methods for non-me
9、tallic materials - Part 502: Mechanical tests - Shrinkage test for insulations (IEC 60811-502:2012) Cbles lectriques et fibres optiques - Mthodes dessai pour les matriaux non-mtalliques - Partie 502: Essais mcaniques - Essai de rtraction des enveloppes isolantes (CEI 60811-502:2012) Kabel, isolierte
10、 Leitungen und Glasfaserkabel - Prfverfahren fr nichtmetallene Werkstoffe - Teil 502: Mechanische Prfungen Schrumpfungsprfung fr Isolierhllen (IEC 60811-502:2012) This European Standard was approved by CENELEC on 2012-04-17. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulatio
11、ns which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC membe
12、r. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions
13、. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Ro
14、mania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 60811-502:2012 - 2 - Foreword The text of document 20/1298/FDIS, future edition 1 of IEC 60811-502, prepared by IEC/TC 20 “Electric cables“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC
15、as EN 60811-502:2012. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-01-17 latest date by which the national standards conflicting with the document have to be with
16、drawn (dow) 2015-04-17 This document supersedes Clause 10 of EN 60811-1-3:1995 + A1:2001(partially). Full details of the replacements are shown in Annex A of EN 60811-100:2012. There are no technical changes with respect to EN 60811-1-3:1995, but see the Foreword to EN 60811-100. This standard is to
17、 be read in conjunction with EN 60811-100. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This standard covers the Principle Elements
18、 of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). Endorsement notice The text of the International Standard IEC 60811-502:2012 was approved by CENELEC as a European Standard without any modification. In the official version, for Bib
19、liography, the following note has to be added for the standard indicated : IEC 60811-1-3:1993 NOTE Harmonized as EN 60811-1-3:1995 (not modified). BS EN 60811-502:2012- 3 - EN 60811-502:2012 Annex ZA (normative) Normative references to international publications with their corresponding European pub
20、lications 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) applie
21、s. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60811-100 2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 100: General EN 60811-100 2012
22、BS EN 60811-502:2012 2 60811-502 IEC:2012 CONTENTS 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 BS EN 60
23、811-502:201260811-502 IEC:2012 5 INTRODUCTION The IEC 60811 series specifies the test methods to be used for testing non-metallic materials of all types of cables. These test methods are intended to be referenced in standards for cable construction and for cable materials. NOTE 1 Non-metallic materi
24、als are typically used for insulating, sheathing, bedding, filling or taping within cables. NOTE 2 These test methods are accepted as basic and fundamental and have been developed and used over many years principally for the materials in all energy cables. They have also been widely accepted and use
25、d for other cables, in particular optical fibre cables, communication and control cables and cables for ships and offshore applications. BS EN 60811-502:2012 6 60811-502 IEC:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 502: Mechanical tests Shrinkage test for i
26、nsulations 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, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition ci
27、ted applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60811-100:2012, Electric and optical fibre cables Test methods for non-metallic materials Part 100: General 3 Terms and definitions For the purposes of this document, the terms
28、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 equipment shall be as follows: an air oven, electrically heated, capable of maintaining the test temperature; a measuring device
29、 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 length. L is the length given in the relevant cable standard. 4.4 Preparation of test pieces All coverings, except adherent, extru
30、ded 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, 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 mea
31、sured to an accuracy of 0,5 mm. Each test piece shall then be BS EN 60811-502:201260811-502 IEC:2012 7 prepared by cutting and removing the insulation from both ends of each sample up to positions between 2 mm and 5 mm away from the marks. 4.5 Test procedure Each test piece shall be supported horizo
32、ntally 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 insulation. Each test piece should remain in the oven for the time specified in the cable standard. Each test
33、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 Expression of results The percentage shrinkage L is the difference between the distances between the marks before th
34、e 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 be in accordance with that given in IEC 60811-100. BS EN 60811-502:2012 8 60811-502 IEC:2012 Bibliography I
35、EC 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 (withdrawn) _ BS EN 60811-502:2012This page deliberately left blankBSI is the independent
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