1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS 7655-1.3:2000 ICS 29.0
2、35.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Specification for Insulating and sheathing materials for cables Part 1: Cross-linked elastomeric insulating compounds Section 1.3: XLPE IMPORTANT NOTE This section of BS 7655 is to be read in conjunction with BS 7655-0.This
3、 British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 November 2000 BSI 11-2000 First published April 1993 Second edition November 2000 The following BSI reference
4、s relate to the work on this standard: Committee reference GEL/20/3 Draft for comment 99/240495 DC ISBN 0 580 33188 1 BS 7655-1.3:2000 Amendments issued since publication Amd. No. Date Comments Committees responsible for this British Standard The preparation of this British Standard was entrusted by
5、 Technical Committee GEL/20, Electric cables, to Subcommittee GEL/20/3, Insulation and sheath, upon which the following bodies were represented: Association of Consulting Engineers British Approvals Service for Cables British Cables Association British Plastics Federation British Rubber Manufacturer
6、s Association Ltd. Department of Trade and Industry (Consumer Safety Unit, CA Division) Electricity Association ERA Technology Ltd. GAMBICA (BEAMA Ltd.) Institute of Fire Prevention Officers London Underground Ltd. Ministry of Defence Queen Mary and Westfield College Railtrack Warrington Fire Resear
7、ch CentreBS 7655-1.3:2000 BSI 11-2000 i Contents Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Normative references 1 3 Definitions 1 4 Requirements 1 Bibliography 3ii BSI 11-2000 BS 7655-1.3:2000 Foreword This section of BS 7655 has been prepared by Subcommittee GEL/20/3. I
8、t supersedes BS 7655-1.3:1993 which is withdrawn. It specifies the requirements for the cross-linked insulation compound, GP 8. This revision brings this section of BS 7655 fully into line with BS 7655-0:1997, including amendment 1:2000. Test methods are specified in this section of BS 7655 by refer
9、ence to the latest edition of standards in which they appear. A dated reference to the most recent edition of the relevant standard for each test method is given in BS 7655-0, which is to be read in conjunction with this section. A British Standard does not purport to include all the necessary provi
10、sions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 3 and
11、 a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.BS 7655-1.3:2000 BSI 11-2000 1 1 Scope This section of BS 7655 specifies the requirements for the cross-linked insulating compound listed in Table 1. The relevant test methods are given in
12、BS EN 60811 and BS 6469. This section is to be read in conjunction with BS 7655-0, which contains essential provisions for the application of this section of BS 7655. Table 1 Type of cross-linked insulation Type Maximum material operating temperature General application 8C GP 8 90 Ordinary duty XLPE
13、 2 Normative references For the purposes of this section of BS 7655, the requirements of BS 7655-0, 2.1 apply with regard to normative references. The latest editions of the standards giving test methods are listed in the most recent edition of BS 7655-0. 3 Definitions For the purposes of this secti
14、on of BS 7655 the definitions given in BS 7655-0, clause 3 apply. 4 Requirements The requirements specified for the compound listed in Table 2 shall be met when the compound is tested using the test methods listed against each particular requirement. NOTE For cross-references to the latest editions
15、of the test method standards see BS 7655-0, Table 2.2 BSI 11-2000 BS 7655-1.3:2000 Table 2 Test requirements Test Test method in accordance with BS EN 60811 unless otherwise stated Requirements for compound type GP 8 Section Clause Properties in the state as manufactured 1-1 9.1 Minimum tensile stre
16、ngth (N/mm 2 ) 12.5 Minimum elongation at break (%) 200 Properties after ageing in air oven 1-2 8.1 Temperature (8C) 135 2 Duration (h) 73 24 Maximum variation for tensile strength (%) 25 Maximum variation for elongation at break (%) 25 Water absorption (gravimetric) 1-3 9.2 Temperature (8C) 85 2 Du
17、ration (h) 143 24 Maximum variation in mass (mg/cm 2 )1 Hot set test 2-1 9 Temperature (8C) 200 3 Duration (min) 15 Mechanical stress (N/mm 2 ) 0.2 Requirements Maximum elongation under load (%) 175 Maximum elongation after unloading (%) 15 Insulation resistance constant BS 6469-99.2, clause 8 Tempe
18、rature (8C) 90 2 Minimum K value (MV km) 3.67 BSI 11-2000 3 BS 7655-1.3:2000 Bibliography See BS 7655-0, 2.2.BS 7655-1.3:2000 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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