BS-7540-2-2005.pdf
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1、BRITISH STANDARD BS 7540-2:2005 Electric cables Guide to use for cables with a rated voltage not exceeding 450/750 V Part 2: Harmonized cable types from HD 21 and HD 22 (Implementation of CENELEC HD 516 S2) ICS: 29.060.20 Licensed Copy: London South Bank University, London South Bank University, Fri
2、 Dec 08 12:11:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7540-2:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 22 July 2005 BSI 22 July 2005 First published as BS 7540 January 1992 Second edition November 1994 Third edition as BS
3、7540-2 22 July 2005 The following BSI references relate to the work on this British Standard: Committee reference GEL/20/17 Draft for comment DC 03/303438 ISBN 0 580 45501 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee
4、 GEL/20, Electric cables, to Subcommittee GEL/20/17, Low voltage cables, upon which the following bodies were represented: BEAMA Installation Ltd. British Approvals Service for Cables British Cables Association British Plastics Federation Chartered Institution of Building Services Department of Trad
5、e and Industry Consumer Safety Unit Electricity Association Energy Industries Council Engineering Industries Association ERA Technology Ltd. Ministry of Defence UK Defence Standardization Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London Sou
6、th Bank University, Fri Dec 08 12:11:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7540-2:2005 BSI 22 July 2005 i Contents Page Forewordiii Introduction1 1Scope 1 2Normative references 1 3Terms and definitions 2 4Specific cable types 2 Annex A (informative) Harmonized cable types from HD 21 and H
7、D 22 not implemented in a British Standard 51 Annex B (informative) Relationship between cable product standards and this part of BS 7540 53 Annex C (normative) Duty cycles, current ratings and voltage drop for arc welding cables (copper conductors) 54 Bibliography 57 Table 1A Cables conforming to H
8、D 21.3 Constructional details, method of installation and temperature 3 Table 1B Cables conforming to HD 21.3 Guide to use 4 Table 2A Cables conforming to HD 21.5 Constructional details, method of installation and temperature 5 Table 2B Cables conforming to HD 21.5 Guide to use 7 Table 3A Cables con
9、forming to HD 21.7 Constructional details, method of installation and temperature 8 Table 3B Cables conforming to HD 21.7 Guide to use 9 Table 4A Cables conforming to HD 21.9 Constructional details, method of installation and temperature 10 Table 4B Cables conforming to HD 21.9 Guide to use 11 Table
10、 5A Cables conforming to HD 21.10 Constructional details, method of installation and temperature 12 Table 5B Cables conforming to HD 21.10 Guide to use 14 Table 6A Cables conforming to HD 21.12 Constructional details, method of installation and temperature 15 Table 6B Cables conforming to HD 21.12 G
11、uide to use 17 Table 7A Cables conforming to HD 21.13 Constructional details, method of installation and temperature 18 Table 7B Cables conforming to HD 21.13 Guide to use 20 Table 8A Cables conforming to HD 22.3 Constructional details, method of installation and temperature 21 Table 8B Cables confo
12、rming to HD 22.3 Guide to use 22 Table 9A Cables conforming to HD 22.4 Constructional details, method of installation and temperature 23 Table 9B Cables conforming to HD 22.4 Guide to use 25 Table 10A Cables conforming to HD 22.6 Constructional details, method of installation and temperature 26 Tabl
13、e 10B Cables conforming to HD 22.6 Guide to use 27 Table 11A Cables conforming to HD 22.7 Constructional details, method of installation and temperature 28 Table 11B Cables conforming to HD 22.7 Guide to use 29 Table 12A Cables conforming to HD 22.9 Constructional details, method of installation and
14、 temperature 30 Table 12B Cables conforming to HD 22.9 Guide to use 31 Table 13A Cables conforming to HD 22.10 Constructional details, method of installation and temperature 32 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:11:18 GMT+00:00 2006, Uncontrolled
15、 Copy, (c) BSI BS 7540-2:2005 ii BSI 22 July 2005 Page Table 13B Cables conforming to HD 22.10 Guide to use 34 Table 14A Cables conforming to HD 22.11 Constructional details, method of installation and temperature 35 Table 14B Cables conforming to HD 22.11 Guide to use 37 Table 15A Cables conforming
16、 to HD 22.12 Constructional details, method of installation and temperature 38 Table 15B Cables conforming to HD 22.12 Guide to use 40 Table 16A Cables conforming to HD 22.13 Constructional details, method of installation and temperature 42 Table 16B Cables conforming to HD 22.13 Guide to use 44 Tab
17、le 17A Cables conforming to HD 22.15 Constructional details, method of installation and temperature 45 Table 17B Cables conforming to HD 22.15 Guide to use 47 Table 18A Cables conforming to HD 22.16 Constructional details, method of installation and temperature 48 Table 18B Cables conforming to HD 2
18、2.16 Guide to use 50 Table A.1 Harmonized cable types from HD 21 not implemented in a British Standard 51 Table A.2 Harmonized cable types from HD 22 not implemented in a British Standard 52 Table B.1 Cross-reference table 53 Table C.1 Ambient temperature correction factors 54 Table C.2 Current rati
19、ng for single cycle operation over a maximum period of 5 min 55 Table C.3 Current rating for repeat cycle operation based on a 5 min repeat period 55 Table C.4 Current rating for repeat cycle operation based on a 10 min repeat period 55 Table C.5 Voltage drop at normal and elevated temperatures 56 L
20、icensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:11:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7540-2:2005 BSI 22 July 2005 iii Foreword This part of BS 7540 has been prepared by Subcommittee GEL/20/17. Together with BS 7540-1 and BS 7540-3 it supersedes
21、BS 7540:1994, which is withdrawn. BS 7540 is published in three parts: a) Part 1: General guidance; b) Part 2: Harmonized cable types from HD 21 and HD 22; c) Part 3: National standard cables not included in HD 21 or HD 22. BS 7540-1 and BS 7540-2 together form the UK implementation of the European
22、Committee for Electrotechnical Standardization (CENELEC) Harmonization Document HD 516 S2. NOTE BS 7540 is applicable only to cable types that are specified in British Standards, so the parts of HD 516 that cover non-BS cables are not included in the main body of BS 7540. These non-BS cables are, ho
23、wever, listed in Annex A, with references to the relevant clauses in HD 21 and HD 22. This part of BS 7540 should be read in conjunction with BS 7540-1, which gives general recommendations and guidance. Attention is drawn to the Electrical Equipment (Safety) Regulations 1994 1. Additional informatio
24、n on installation practice is given in BS 7671. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages T
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