BS-7540-1-2005.pdf
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1、BRITISH STANDARD BS 7540-1:2005 Incorporating Corrigendum No. 1 Electric cables Guide to use for cables with a rated voltage not exceeding 450/750 V Part 1: General guidance (Implementation of CENELEC HD 516 S2) ICS 29.060.20 ? Licensed Copy: London South Bank University, London South Bank Universit
2、y, Fri Dec 08 12:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7540-1:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 22 July 2005 BSI 26 January 2006 First published as BS 7540 January 1992 Second edition November 1994 Third editi
3、on as BS 7540-1 22 July 2005 The following BSI references relate to the work on this British Standard: Committee reference GEL/20/17 Draft for comment 03/303437 DC ISBN 0 580 45500 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical
4、Committee 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 Departmen
5、t of Trade 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 16211 Corrigendum No. 1 26 January 2006Correct
6、ion of heading rows and values in Table 1 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7540-1:2005 BSI 26 January 2006 i Contents Page Committees responsibleInside front cover Forewordii Introduction 1 1S
7、cope 1 2Normative references 1 3Terms and definitions 2 4Safety 2 5Limiting conditions 4 6Initial and periodic verifications 10 7Packaging, storage and handling/transportation 10 Annex A (informative) Relationship between cable product standards and BS 7540 11 Annex B (informative) Classes of extern
8、al influence (environmental conditions) 13 Annex C (informative) Types of usage 13 Annex D (informative) Classes of duty 14 Bibliography 15 Figure 1 Definition of internal bending radius 8 Table 1 Spacing of supports for non-armoured cables in accessible positions 3 Table 2 Minimum recommended bendi
9、ng radii at cable temperatures of (20 10) C 9 Table A.1 Cross-reference table 11 Table B.1 Classes of external influence (environmental conditions) 13 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7540-1:2
10、005 ii BSI 26 January 2006 Foreword This part of BS 7540 has been prepared by Subcommittee GEL/20/17. Together with BS 7540-2 and BS 7540-3 it supersedes 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 a
11、nd 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 Committee for Electrotechnical Standardization (CENELEC) Harmonization Document HD 516 S2. This part of BS 7540 should be read in conjunction with
12、 either BS 7540-2 or BS 7540-3 as appropriate for the cable type. BS 7540-2 gives guidance on those cable types that are specified in Harmonized Documents HD 21 and HD 22 as implemented in BS 638-4, BS 6004, BS 6007, BS 6500, BS 7211 and BS 7919. BS 7540-3 gives guidance on cables specific to the Un
13、ited Kingdom that are specified in these standards but not included in HD 21 or HD 22. 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, howeve
14、r, listed in BS 7540-2:2005, Annex A, with references to the relevant clauses in HD 21 and HD 22. Attention is drawn to the Electrical Equipment (Safety) Regulations 1994 1. Additional information on installation practice is given in BS 7671. This publication does not purport to include all the nece
15、ssary 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 This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 15 and a back cov
16、er. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7540-1:2005 BSI 26 January 2006 1 Introduction This Britis
17、h Standard provides guidance for equipment manufacturers, installers and end-users on the properties of low voltage electric cables, and the limitations that are deemed to be necessary in order to safeguard life, buildings and goods. The information is given in the form of limiting values and is ill
18、ustrated by examples, which are not exhaustive but which indicate ways by which safety can be obtained. 1 Scope This part of BS 7540 provides general guidance for the safe use of electric cables with a rated voltage not exceeding 450/750 V. It is applicable to those cables that are specified in BS 6
19、38-4, BS 6004, BS 6007, BS 6500, BS 7211 and BS 7919. NOTE 1 These British Standards specify requirements for two categories of cable type. For cable types specified in Harmonized Documents HD 21 and HD 22 as implemented in these British Standards, specific guidance is given in BS 7540-2. For cable
20、types specific to the United Kingdom that are specified in these standards but not included in HD 21 or HD 22, specific guidance is given in BS 7540-3. The guidance given in this part of BS 7540 can also be applicable to low-voltage cables of a similar type to those specified in BS 638-4, BS 6004, B
21、S 6007, BS 6500, BS 7211 and BS 7919 but not specifically mentioned in those standards. NOTE 2 In such cases it is advisable to seek additional advice from BSI or the cable manufacturer. 2 Normative references The following referenced documents are indispensable for the application of this document.
22、 For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. BS 638-4:1996, Arc welding power sources, equipment and accessories Specification for welding cables. BS 4727-2:Group 08, Glossary of Elect
23、rotechnical, power, telecommunication, electronics, lighting and colour terms Part 2: Terms particular to power engineering Group 08: Electric cable terminology. BS 6004:2000, Electric cables PVC insulated, non-armoured cables for voltages up to and including 450/750 V, for electric power, lighting
24、and internal wiring. BS 6007:2000, Electric cables Single core unsheathed heat resisting cables for voltages up to and including 450/750 V, for internal wiring. BS 6500:2000, Electric cables Flexible cords rated up to 300/500 V, for use with appliances and equipment intended for domestic, office and
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