EN 60811-509-2012 en Electric and optical fibre cables - Test methods for nonmetallic materials - Part 509 Mechanical tests - Test for resistance of insulations and sheaths to crac.pdf

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 509: Mechanical tests Test for resistance of insulations and sheaths to cracking (heat shock test)BS

2、 EN 60811-509:2012National forewordThis British Standard is the UK implementation of EN 60811-509:2012. It isidentical to IEC 60811-509:2012.In the UK, the relationship between the supersessions of BS EN 60811 seriescan be summarized as follows.Superseded standards are withdrawnThe UK participation

3、in its preparation was entrusted by Technical 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 prov

4、isions of acontract. Users are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 65333 9ICS 29.035.01; 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was

5、 published under the authority of the StandardsPolicy and Strategy Committee on 31 July 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60811-509:2012BS EN 60811-100 together with Supersedes - -201, -202, -203, -501 BS EN 60811-1-1:1995 -301, -302, -411, -601

6、, -602, -603, -604 BS EN 60811-5-1:2000 -401, -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, -5

7、06 BS EN 60811-1-4:1995 -508, -509 BS EN 60811-3-1:1995EUROPEAN STANDARD EN 60811-509 NORME EUROPENNE EUROPISCHE NORM June 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management

8、Centre: Avenue Marnix 17, B - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60811-509:2012 E ICS 29.035.01; 29.060.20 Supersedes EN 60811-3-1:1995 (partially) + A1:1996 (partially) + A2:2001 (partially)English

9、 version Electric and optical fibre cables - Test methods for non-metallic materials - Part 509: Mechanical tests - Test for resistance of insulations and sheaths to cracking (heat shock test) (IEC 60811-509:2012) Cbles lectriques et fibres optiques - Mthodes dessai pour les matriaux non-mtalliques

10、- Partie 509: Essais mcaniques - Essai de rsistance la fissuration des enveloppes isolantes et des gaines (essai de choc thermique) (CEI 60811-509:2012) Kabel, isolierte Leitungen und Glasfaserkabel - Prfverfahren fr nichtmetallene Werkstoffe - Teil 509: Mechanische Prfungen - Prfung der Rissbestndi

11、gkeit von Isolierhllen und Mnteln (IEC 60811-509:2012) This European Standard was approved by CENELEC on 2012-04-17. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard withou

12、t 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 member. This European Standard exists in three official versions (English, French, German). A version in any othe

13、r 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. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cypru

14、s, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 60811-509:2012 - 2

15、- Foreword The text of document 20/1305/FDIS, future edition 1 of IEC 60811-509, prepared by IEC/TC 20 “Electric cables“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60811-509:2012. The following dates are fixed: latest date by which the document has to be implemented

16、 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 withdrawn (dow) 2015-04-17 This document supersedes Clause 9 of EN 60811-3-1:1995 + A1:1996 + A2:2001 (partially

17、). Full details of the replacements are shown in Annex A of EN 60811-100:2012. There are no specific technical changes with respect to EN 60811-3-1:1995, but see the Foreword to EN 60811-100:2012. This standard is to be read in conjunction with EN 60811-100. Attention is drawn to the possibility tha

18、t 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 of the Safety Objectives for Electrical Equipment Designed for Use within Certain V

19、oltage Limits (LVD - 2006/95/EC). Endorsement notice The text of the International Standard IEC 60811-509:2012 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated : IEC 60811

20、-3-1:1985 NOTE Harmonized as EN 60811-3-1:1995 (not modified). BS EN 60811-509:2012- 3 - EN 60811-509:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced i

21、n 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. NOTE When an international publication has been modified by common modifications,

22、 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 BS EN 60811-509:2012 2 60811-509 IEC:2012 CONTENTS INTRODUCTION . 5 1 Scope . 6 2 No

23、rmative references . 6 3 Terms and definitions . 6 4 Test method . 6 4.1 General . 6 4.2 Apparatus 6 4.3 Sample and test piece preparation for insulations 7 4.3.1 General . 7 4.3.2 Procedure 7 4.3.3 Expression of results . 8 4.4 Sample and test piece preparation for sheaths 8 4.4.1 General . 8 4.4.2

24、 Procedure 8 4.4.3 Measurements . 9 4.4.4 Expression of the results . 9 5 Test report 9 Annex A (informative) Recommended performance requirement 10 Bibliography 11 Table 1 Diameter of mandrel and number of turns for cores with overall diameter not exceeding 12,5 mm . 7 Table 2 Diameter of mandrel a

25、nd number of turns for cores with overall diameter exceeding 12,5 mm . 8 BS EN 60811-509:201260811-509 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 sta

26、ndards 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 fundamental and have been developed and used over many years principally fo

27、r 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. BS EN 60811-509:2012 6 60811-509 IEC:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST M

28、ETHODS FOR NON-METALLIC MATERIALS Part 509: Mechanical tests Test for resistance of insulations and sheaths to cracking (heat shock test) 1 Scope This Part 509 of IEC 60811 gives the procedure for the test for resistance of insulations and sheaths to cracking at an elevated temperature. 2 Normative

29、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 cited applies. For undated references, the latest edition of the referenced document (including any amendments) appli

30、es. 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 and definitions given in IEC 60811-100 apply. 4 Test method 4.1 General This part of IEC 60811 shall be used in con

31、junction with IEC 60811-100. All the tests shall be carried out not less than 16 h after the extrusion of the insulating or sheathing compounds Unless otherwise specified, tests shall be carried out at room temperature. NOTE In the absence of any requirement in the relevant cable standard, Annex A i

32、n this standard gives a recommendation for the test conditions and test requirements. 4.2 Apparatus The apparatus consists of the following parts: a) an air oven capable of maintaining the temperature and tolerance specified; b) mandrels of sufficient length made of metal or other suitable material.

33、 BS EN 60811-509:201260811-509 IEC:2012 7 4.3 Sample and test piece preparation for insulations 4.3.1 General Each core to be tested shall be represented by two samples of suitable length taken from two places separated by at least 1 m. External coverings, if any, shall be removed from the insulatio

34、n. The test pieces shall be prepared in one of the three following ways: a) For cores with an overall diameter not exceeding 12,5 mm, each test piece shall consist of a piece of core. b) For cores with an overall diameter exceeding 12,5 mm and having an insulation thickness not exceeding 5 mm, and f

35、or all sector-shaped cores, each test piece shall consist of a strip taken from the insulation whose width shall be at least 1,5 times its thickness, but not less than 4 mm. The strip shall be cut in the direction of the axis of the conductor. In the case of sector-shaped cores, it shall be cut out

36、of the “back” of the core. c) For cores with an overall diameter exceeding 12,5 mm and a wall thickness exceeding 5,0 mm, each test piece shall consist of a strip cut in accordance with item b) and then ground or cut (avoiding heating) on the outer surface, to a thickness between 4,0 mm and 5,0 mm.

37、This thickness shall be measured on the thicker part of the strip, whose width shall be at least 1,5 times the thickness. 4.3.2 Procedure Each test piece shall be tautly wound and fixed, at ambient temperature, on a mandrel to form a close helix, as given below: a) For test pieces prepared in accord

38、ance with 4.3.1 a), and for flat cables, the diameter of the mandrel and the number of turns shall be as given below in Table 1. The mandrel diameter shall be based on the minor dimension of the core which is wound on with its minor axis perpendicular to the mandrel. Table 1 Diameter of mandrel and

39、number of turns for cores with overall diameter not exceeding 12,5 mm External diameter of test piece mm Mandrel diameter (maximum) mm Number of turns Up to and including 2,5 Over 2,5 up to and including 4,5 Over 4,5 up to and including 6,5 Over 6,5 up to and including 9,5 Over 9,5 up to and includi

40、ng 12,5 5 9 13 19 40 6 6 6 4 2 b) For test pieces prepared in accordance with 4.3.1 b) and c), the diameter of the mandrel and the number of turns shall be as given below in Table 2. In this case, the inner surface of the test piece shall be in contact with the mandrel. BS EN 60811-509:2012 8 60811-

41、509 IEC:2012 Table 2 Diameter of mandrel and number of turns for cores with overall diameter exceeding 12,5 mm Thickness of test piece mm Mandrel diameter (maximum) mm Number of turns Up to and including 1 Over 1 up to and including 2 Over 2 up to and including 3 Over 3 up to and including 4 Over 4

42、up to and including 5 2 4 6 8 10 6 6 6 4 2 For the application of Tables 1 and 2, the diameter or thickness of each test piece shall be measured by means of callipers or any other suitable measuring instrument. Each test piece, on its mandrel, shall be placed in the oven, pre-heated to the temperatu

43、re specified in the relevant cable standard or, if no other is specified in the cable standard, to that given in Annex A of this standard. The test pieces shall be removed from the oven and allowed to attain approximately ambient temperature. They shall then be examined while still on the mandrel. 4

44、.3.3 Expression of results The test pieces shall show no cracks when examined with normal or corrected vision without magnification. Cracks at the fixing points shall not be recorded as a fault. A crack is considered to be a crack if it goes through the whole insulation and/or sample thickness. 4.4

45、Sample and test piece preparation for sheaths 4.4.1 General Each sheath to be tested shall be represented by two samples of cable of suitable length taken from two places, separated by at least 1 m. Any external coverings shall be removed. a) For sheaths with an overall diameter not exceeding 12,5 m

46、m, each test piece shall consist of a piece of cable, except for polyethylene-insulated PVC sheathed cables. b) For sheaths with an overall diameter exceeding 12,5 mm and with a wall thickness not exceeding 5,0 mm, and for sheaths of polyethylene-insulated cables, each test piece shall consist of a

47、strip taken from the sheath, whose width shall be at least 1,5 times its thickness but not less than 4 mm; the strip shall be cut in the direction of the axis of the cable. c) For sheaths with an overall diameter exceeding 12,5 mm and a wall thickness exceeding 5,0 mm, each test piece shall consist

48、of a strip cut in accordance with item b) and then ground or cut (avoiding heating) on the outer surface, to a thickness between 4,0 mm and 5,0 mm. This thickness shall be measured on the thicker part of the strip, whose width shall be at least 1,5 times the thickness. d) For flat cables, if the wid

49、th of the cable does not exceed 12,5 mm, each test piece shall be a piece of complete cable. If the width of the cable exceeds 12,5 mm, each test piece shall consist of a strip taken from the sheath as specified in item b). 4.4.2 Procedure Each test piece shall be tautly wound and fixed, at ambient temperature, on a mandrel to form a close helix, as given below: BS EN 60811-509:201260811-509 IEC:2012 9 a) For test pieces prepared in accordance with 4.3.1 a), and flat cables of width no