BS-4565-1990.pdf
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1、BRITISH STANDARD BS 4565:1990 Specification for Galvanized steel wire for aluminium conductors, steel-reinforced BS 4565:1990 This British Standard, having been prepared under the direction of the Iron and Steel Standards Policy Committee, was published under the authority of the Board of BSI and co
2、mes into effect on 28 September 1990 BSI 07-1999 First published February 1970 Second edition September 1990 The following BSI references relate to the work on this standard: Committee reference ISM/26 Draft for comment 88/40021 DC ISBN 0 580 18317 3 Committees responsible for this British Standard
3、The preparation of this British Standard was entrusted by the Iron and steel Standards Policy Committee (ISM/-) to Technical Committee ISM/26, upon which the following bodies were represented: Aluminium Federation Bicycle Association of Great Britain British Cable Makers Confederation British Rubber
4、 Manufacturers Association British Steel Industry Engineering Equipment and Materials Users Association Federation of wire Rope Manufacturers of Great Britain Forestry Commission Health and Safety Executive Sheffield Stainless Steel Manufactures Association Society of Chain Link Fencing Manufactures
5、 Society of Motor Manufactures and Traders Limited Spring Research and Manufacturers Association Stainless Steel Fabricators Association of Great Britain Stainless Steel Wire Export Group Welding Manufactures Association (BEAMA Ltd) Woven Wire Association Zinc Development Association Amendments issu
6、ed since publication Amd. No.Date of issueComments BS 4565:1990 BSI 07-1999i Contents Page Committees responsibleInside front cover Forewordii Section 1. General 1Scope1 2Information to be supplied by the purchaser1 3Manufacture1 4Inspection and testing1 5Selection of test pieces and number of tests
7、1 6Methods of testing1 7Retests2 8Identification2 Section 2. Specific requirements for standard strength wire 9Tolerance on nominal diameter3 10Tensile strength and stress at 1 % elongation3 11Torsion test3 12Elongation3 13Steel ductility wrap test3 14Galvanizing3 Section 3. Specific requirements fo
8、r high strength wire 15Tolerance on nominal diameter4 16Tensile strength and stress at 1 % elongation4 17Elongation4 18Torsion test4 19Steel ductility wrap test4 20Galvanizing4 Appendix A Conversions of tensile strength and stress at 1 % elongation6 Table 1 Initial stresses to be applied2 Table 2 Te
9、nsile strength and stress at 1 % elongation3 Table 3 Properties for high strength galvanized steel wire for aluminium conductors, steel-reinforced5 Table 4 Conversions of tensile strength and stress at 1 % elongation6 Publications referred toInside back cover BS 4565:1990 ii BSI 07-1999 Foreword Thi
10、s British Standard has been prepared under the direction of the Iron and Steel Standards Policy Committee and is a partial revision of BS 4565:1970, incorporating the amendment issued in 1972 together with a change which would have constituted a second amendment. The standard is classed as a partial
11、 revision because the Technical Committee has not reviewed it in great detail. The standard has been drafted in the same style as the 1970 text and changes to the text are indicated by lines in the margin. This edition replaces BS 4565:1970 which is withdrawn. In this revision, the minimum number of
12、 twists in the torsion test for standard strength wire has been changed to align with IEC 209, published by the International Electrotechnical Commission. Conversions from N/mm2 in terms of tonf/in2 are given in Appendix A. A British Standard does not purport to include all the necessary provisions
13、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 6, an insid
14、e 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. BS 4565:1990 BSI 07-19991 Section 1. General 1 Scope This British Standard specifies the requirements
15、for galvanized steel wire, as supplied by the wire manufacturer, for use in the manufacture of aluminium conductors, steel reinforced in accordance with BS 215-2. There are three sections. Section 1 deals with general requirements. Section 2 gives specific requirements for standard strength wire for
16、 all diameters from 1.18 mm to 5.0 mm. Section 3 gives specific requirements for high strength wire in three grades, identified by the specified minimum tensile strength in N/mm2, and in diameter ranges varying according to the tensile strength grade. NOTEThe titles of the publications referred to i
17、n this standard are listed on the inside back cover. 2 Information to be supplied by the purchaser When ordering steel wire complying with this standard, the following details should be stated on the enquiry and order: 1) The number of this British Standard, i.e. BS 4565. 2) The specified wire diame
18、ter. 3) The description, i.e. either “standard strength” or “high strength”. In the case of “high strength” wire, the specified tensile grade number in N/mm2 should also be included. 3 Manufacture 3.1 Steelmaking The wire shall be cold drawn from plain carbon basic steel, made by any process except
19、that the air, and mixed air-oxygen, bottom blown basic converter processes shall not be used. The cast analysis shall show not more than 0.050 % of sulphur, nor more than 0.050 % of phosphorous. 3.2 Galvanizing The wire shall be zinc coated by the hot dip or the electrolytic process. If the hot dip
20、process is used, the purity of the zinc fed into the bath shall be not less than Zn 3 of BS 3436. The galvanizing shall take place at any suitable stage during manufacture. Subject to agreement between the wiremaker and the conductor manufacturer, the wire shall be supplied either in the finally gal
21、vanized or the drawn galvanized conditions. 3.3 Freedom from defects The finished wire shall be clean, smooth and free from harmful defects. 3.4 Welds There shall be no joints in the finished wire, except welds which are in the base rod before or after patenting and prior to final drawing. The defin
22、ition of patenting shall be as given in BS 6562-1. 4 Inspection and testing Inspection and testing of the coils of wire shall be carried out by the wire manufacturer. 5 Selection of test pieces and number of tests 5.1 Test pieces shall be taken from the production coils for the number of tests given
23、 in 5.2. Where the conductor manufacturer requires the wire to be supplied split down into smaller weight coils, the test pieces shall be taken prior to the splitting of the production coil. 5.2 The following number of tests shall be carried out on each batch of coils. A diameter and tensile test sh
24、all be carried out on each coil of wire, while 1 in every 10 coils shall be tested for stress at 1 % elongation, torsion or elongation, the steel ductility wrap test and the galvanizing tests. 6 Methods of testing 6.1 General All tests shall be carried out on straight pieces of wire and any straight
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