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1、BRITISH STANDARD BS AU 255-1: 1994 ISO 6722-3: 1993 Road vehicle unscreened low tension cables Part 1: Specification for conductor sizes and dimensions for thick walled insulated cables UDC 621.315.21:629.11 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:07:
2、24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 255-1:1994 This British Standard, having been prepared under the direction of the Automobile Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 March 1994 BSI 04-1999 The following BSI r
3、eferences relate to the work on this standard: Committee reference AUE/16 Draft for comment 91/70289 DC ISBN 0 580 22863 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Automobile Standards Policy Committee (AUE/-) to Technical Committ
4、ee AUE/16, upon which the following bodies were represented: Association of Trailer Manufacturers British Cable Makers Confederation Department of Transport Institution of Electrical Engineers Motor Industry Research Association National Caravan Council Society of Motor Manufacturers and Traders Coo
5、pted members Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:07:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 255-1:1994 BSI 04-1999i Contents Page Committees responsibleInside front cover Nationa
6、l forewordii 1Scope1 2Normative references1 3Cable colour identification1 4Dimensional requirements1 5Tests and performance requirements1 Annex A (informative) Cross-sectional areas and resistances for low-tension cables in current sizes2 Table 11 Table A.12 List of referencesInside back cover Licen
7、sed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:07:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 255-1:1994 ii BSI 04-1999 National foreword This Part of BS AU 255 has been prepared under the direction of the Automobile Standards Policy Committee. It is iden
8、tical with ISO 6722-3:1993 Road vehicles Unscreened low-tension cables Part 3: Conductor sizes and dimensions for thick-wall insulated cables, published by the International Organization for Standardization (ISO). Cross-references The Technical Committee has reviewed the provisions of ISO 6722-1:198
9、4 and ISO 6722-2:1985, to which normative reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their
10、 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 and 2, an inside back cover and a back cover. This standard has been updated (see
11、 copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:07:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 6722-3:1993(E) BSI 04-1999
12、1 1 Scope This part of ISO 6722 specifies the conductor sizes and dimensions of thick-wall insulated unscreened low-tension cables used in road vehicle applications. NOTE 1The French “paisseur normale” is the equivalent to “thick”. 2 Normative references The following standards contain provisions wh
13、ich, through reference in this text, constitute provisions of this part of ISO 6722. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 6722 are encouraged to investigate the possibility of applyin
14、g the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 6722-1:1984, Road vehicles Unscreened low-tension cables Part 1: General requirements and test methods. ISO 6722-2:1985, Road vehicles Unscreened low
15、-tension cables Part 2: Cable classes, applicable tests and special requirements. 3 Cable colour identification The preferred colours for road vehicle cable insulations are: black, white, blue, orange, brown, green, violet, red, yellow and grey. 4 Dimensional requirements Insulated cables covered by
16、 this part of ISO 6722 shall conform to the values specified in Table 1. For other requirements, different conductor constructions may be used providing they meet the nominal cross-sectional area and the conductor resistance requirement. For special applications for classes A, B and C, and certain m
17、aterials for class C (see ISO 6722-2 for the classes), the insulation thickness and maximum outside cable diameter may be increased as agreed with the user. Annex A indicates current cable sizes that differ from Table 1. 5 Tests and performance requirements The test methods and the performance requi
18、rements shall be as specified in ISO 6722-1 and ISO 6722-2. Table 1 Conductor Insulation thickness Outside cable diameter Nominal cross- sectional area No. of wires Diameter of wires Diameter Maximum resistance at 20 C m7/m max.max. Plain copper Tinned copper nom.min.amax. mm2approx.mmmmmmmmmm 0,516
19、 0,21 1,137,138,2 0,60,44 2,3 0,75241,324,725,42,5 1321,518,519,12,7 1,530 0,26 1,812,7133 2,5502,27,67,820,70,533,6 456 0,31 2,84,714,85 0,80,62 4,4 6843,43,143,235 1080 0,41 4,51,821,85 10,8 6,5 161266,31,161,188,3 251967,80,7430,757 1,31,07 10,4 3527690,5270,53811,6 5039610,50,3680,375 1,51,25 13
20、,5 70360 0,51 12,50,2590,26415,5 9547514,80,1960,2 1,61,34 18 12060816,50,1530,15619,7 a The minimum insulation thickness is calculated by using the formula: Minimum insulation thickness = Nominal insulation thickness 0,1 mm 10 % of the nominal insulation thickness. Licensed Copy: London South Bank
21、University, London South Bank University, Sat Dec 09 02:07:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 6722-3:1993(E) 2 BSI 04-1999 Annex A (informative) Cross-sectional areas and resistances for low-tension cables in current sizes Table A.1 summarizes various national sizes for low-tension ca
22、bles not shown in Table 1. Only the nominal cross-sectional area and the maximum resistance of the conductor are shown because of the variety of constructions currently employed. Table A.1 Nominal cross-sectional area of conductor Maximum conductor resistance at 20 C m7m mm2Plain copperTinned copper
23、 0,63333,7 0,6529,330,2 0,823,323,8 0,8520,821,2 1,2514,715 1,413,914,2 29,429,69 366,17 4,54,064,18 53,944,02 72,722,8 82,322,45 131,51,53 151,251,28 1911,02 200,991,02 300,610,68 320,570,58 400,460,47 600,30,31 620,290,3 750,250,26 810,220,224 850,210,214 1000,180,184 1030,170,173 Licensed Copy: L
24、ondon South Bank University, London South Bank University, Sat Dec 09 02:07:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 255-1:1994 BSI 04-1999 List of references See national foreword. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:07:24 GMT+00:00 20
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