BS-7655-1.6-1993.pdf
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1、BRITISH STANDARD BS 7655-1.6: 1993 Incorporating Amendment No. 1 Specification for Insulating and sheathing materials for cables Part 1: Elastomeric insulating compounds Section 1.6 Coil end lead types Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:55:03 GMT
2、+00:00 2006, Uncontrolled Copy, (c) BSI BS 7655-1.6:1993 This British Standard, having been prepared under the direction of the Cables and Insulation Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 April 1993 BSI 02-1999 The following
3、BSI references relate to the work on this standard: Committee reference CIL/20 Draft for comment 92/25662 DC ISBN 0 580 22012 5 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Cables and Insulation Standards Policy Committee (CIL/-) to T
4、echnical Committee CIL/20, upon which the following bodies were represented: Aluminium Federation Association of Consulting Engineers Association of Manufacturers of Domestic Electrical Appliances British Approvals Service for Cables British Cable Makers Confederation British Plastics Federation Bri
5、tish Steel Industy Department of the Environment (Property Services Agency) Department of Trade and Industry (Consumer Safety Unit, CA Division) Electricity Association Engineering Equipment and Materials Users Association Institution of Electrical Engineers London Regional Transport The following b
6、odies were also represented in the drafting of the standard, through subcommittees and panels: British Railways Board British Rubber Manufacturers Association Ltd. British Telecommunications plc ERA Technology Ltd. GAMBICA (BEAMA Ltd.) Institution of Incorporated Executive Engineers London Undergrou
7、nd Ltd. Queen Mary and Westfield College Telecommunications Cables Group of BCMC Warrington Fire Research Centre Amendments issued since publication Amd. No.DateComments 8344March 1995Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank University, Fri
8、 Dec 08 11:55:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7655-1.6:1993 BSI 02-1999i Contents Page Committees responsibleInside front Cover Forewordii 1Scope1 2Normative references1 3Definitions1 4Test requirements for physical properties1 Table 1 Types of coil end lead insulation1 Table 2 Test
9、 methods1 Table 3 Test requirements2 Table 4 Tolerances on temperature values2 List of referencesInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:55:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7655-1.6:1993 ii BSI 02-1999 Foreword This S
10、ection of BS 7655 has been prepared under the direction of the Cables and Insulation Standards Policy Committee. This Section specifies the physical properties of elastomeric insulating compounds CL 1 and CL 2. For a general introduction to the BS 7655 series and a list of Parts and Sections, Part 0
11、 should be consulted. A British Standard does not purport to include all the necessary provisions 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 Th
12、is document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Lic
13、ensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:55:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7655-1.6:1993 BSI 02-19991 1 Scope This Section of BS 7655 specifies the physical properties of the elastomeric insulating compounds given in Table 1. The relevan
14、t test methods for verification of conformity are given in BS 6469. These compounds are specifically for use on coil end leads conforming to BS 6195. This Section is to be used in conjunction with BS 7655-0. Table 1 Types of coil end lead insulation 2 Normative references This Section of BS 7655 inc
15、orporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed on the inside back page. For a dated reference, only the edition cited applies; any subsequent amendments to or revi
16、sions of the publication apply to this British Standard only when incorporated in the reference by amendment or revision. For undated references, any amendment to, or the latest edition of, the cited publication applies. 3 Definitions For the purposes of this Section of BS 7655, the definitions give
17、n in BS 1755-1, BS 1755-2, BS 3558 and BS 4727-2:Group 08 apply, together with the following. 3.1 variation the difference between the median value after ageing and the median value without ageing expressed as a percentage of the latter 3.2 median value when several test results have been obtained a
18、nd ordered in an increasing or decreasing succession, the median is the middle value if the number of available values is odd and is the mean of the two middle values if the number is even 4 Test requirements for physical properties 4.1 General 4.1.1 The test methods shall be as specified in Table 2
19、 and the methods of sampling and pre-conditioning shall be as described in 4.2 and 4.3. The temperatures used for the test methods shall conform to the conditions specified in 4.4. Table 2 Test methods (in accordance with BS 6469 unless otherwise stated) 4.1.2 When tested by the methods specified in
20、 4.1.1, the properties shall be in accordance with the requirements given in Table 3 for the particular type of material. 4.2 Sampling Unless otherwise stated in the British Standard for the particular cable, the tests on insulation shall be made on samples from each core if the cable has one, two o
21、r three cores and on samples from three cores (of differing colours if any) if the cable has more than three cores. 4.3 Pre-conditioning The tests shall be carried out not less than 16 h after extrusion and cross-linking. 4.4 Temperatures for test methods 4.4.1 Ambient temperature Tests shall be mad
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