1、BRITISH STANDARD BS EN 60889:1997 IEC 889:1987 Hard drawn aluminium wire for overhead line conductors The European Standard EN 60889:1997 has the status of a British Standard ICS 29.060.10; 29.240.20BSEN 60889:1997 This British Standard, having been prepared under the direction of the Electrotechnic
2、al Sector Board, was published under the authority of the Standards Board and comes intoeffect on 15 May 1997 BSI 02-1999 The following BSI references relate to the work on this standard: Committee reference GEL/7 Draft for comment 84/42336 DC ISBN 0 580 27421 7 Committees responsible for this Briti
3、sh Standard The preparation of this British Standard was entrusted by Technical Committee GEL/7, Wrought aluminium for electrical purposes, upon which the following bodies were represented: Aluminium Federation British Cable Makers Confederation Electricity Association International Wire and Machine
4、ry Association Amendments issued since publication Amd. No. Date CommentsBSEN 60889:1997 BSI 02-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Values for hard-drawn aluminium wire 3 3 Material 3 4 Freedom from defects 3 5 Diameter and toler
5、ance on diameter 3 6 Length and tolerance on length 3 7 Joints 3 8 Sampling 3 9 Place of testing 3 10 Mechanical tests 3 11 Resistivity test 4 12 Certificate of compliance 4 Annex ZA (normative) Normative references to international publicationswiththeir corresponding European publications 5 Table 1
6、 Mechanical properties of hard-drawn aluminium wire 4 List of references Inside back coverBSEN 60889:1997 ii BSI 02-1999 National foreword This British Standard has been prepared by Technical Committee GEL/7, and is the English language version of EN60889:1997, Hard drawn aluminium wire for overhead
7、 line conductors, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC889:1987, published by the International Electrotechnical Commission (IEC). It supersedes BS7365:1990 which is withdrawn. A British Standard does not purport to include all t
8、he 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. Cross-references Publication referred to Corresponding British Standard IEC 468:1974 BS 5714:
9、1979 Method of measurement of resistivity of metallic materials EN 10002-1:1990 (ISO 6892:1984) BS EN 10002 Tensile testing of metallic materials Part 1:1990 Method of test at ambient temperature Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ti
10、tle page, pages2 to6, 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.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN60889 January1997 UDC
11、 621.315.1-034.715 ICS29.060.10 Supersedes HD532 S1:1989 Descriptors: Electric overhead line, electric conductor, electric wire, aluminium, property, test English version Hard-drawn aluminium wire for overhead line conductors (IEC 889:1987) Fil daluminium croui dur pour conducteurs de lignes arienne
12、s (CEI 889:1987) Hartgezogene Aluminiumdrhte fr Freileitungsseile (IEC 889:1987) This European Standard was approved by CENELEC on1996-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a
13、 national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A vers
14、ion in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, F
15、rance, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung
16、Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN60889:1997 EEN60889:1997 BSI 02-1999 2 Foreword The text of the International Standard IEC889:1987, prepared by IEC TC7, Ba
17、re aluminium conductors, was approved by CENELEC as HD532 S1 on1989-06-12. This Harmonization Document was submitted to the formal vote for conversion into a European Standard and was approved by CENELEC as EN60889 on1996-10-01. The following date was fixed: Annexes designated “normative” are part o
18、f the body of the standard. In this standard,Annex ZA is normative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International Standard IEC889:1987 was approved by CENELEC as a European Standard without any modification. latest date by which the EN has to be implemented at
19、national level by publication of an identical national standard or by endorsement (dop) 1997-09-01EN60889:1997 BSI 02-1999 3 1 Scope This standard is applicable to hard-drawn aluminium wires for the manufacture of stranded conductors for overhead power transmission purposes. It specifics the mechani
20、cal and electrical properties of wires in the diameter range1.25mm to5.00mm. 2 Values for hard-drawn aluminium wire For calculation purposes the following values for hard-drawn aluminium wire shall be used. 3 Material The wires shall be of aluminium of the requisite purity to achieve the mechanical
21、and electrical properties specified hereinafter. The aluminium content shall be not less than99.5%. 4 Freedom from defects The wires shall be smooth and free from all imperfections not consistent with good commercial practice. 5 Diameter and tolerance on diameter The nominal diameter of the wires sh
22、all be expressed in millimetres to two decimal places. Each measurement of wire diameter shall not depart from the nominal diameter by more than the following amounts: For the purpose of checking compliance with the above requirement, the diameter shall be determined by two measurements at right ang
23、les taken at the same cross-section. 6 Length and tolerance on length The nominal length of each coil or reel of wire and the tolerance on length shall be the subject of agreement between manufacturer and purchaser. 7 Joints Joints may be made prior to final drawing. A joint could also be made in th
24、e finished wire, provided that: a) the coil is 500kg or heavier, b) there is not more than one joint in such coils, c) not more than10% of such coils shall contain a joint, d) when requested by the purchaser, the manufacturer shall provide evidence that the joints have a tensile strength of not less
25、 than130MPa. The coils containing a joint made in the finished wire shall be clearly identified. 8 Sampling Samples for the tests specified in Clauses10 and11 shall be taken by the manufacturer from10% of the individual lengths of wire included in any one consignment. Alternatively, or when a qualit
26、y assessment procedure is operated, the sampling rate shall be the subject of agreement between manufacturer and purchaser. 9 Place of testing Unless otherwise agreed between purchaser and manufacturer at the time of ordering, all tests shall be carried out at the manufacturers works. 10 Mechanical
27、tests 10.1 Tensile test One specimen cut from each of the samples taken under Clause8 shall be subjected to a tensile test in accordance with ISO Standard6892. The rate of separation of the jaws of the testing machine shall be not less than25mm/min and not greater than100mm/min. The tensile strength
28、 shall be not less than the appropriate value given inTable 1. Resistivity at 20C, maximum: 28.264 nWm (corresponding to61.0% IACS) a Density at 20C: 2.703 kg/dm 3 Coefficient of linear expansion: 23 10 -6per degree Celsius Constant-mass temperature coefficient of resistance at 20C: 0.004 03 per deg
29、ree Celsius a International Annealed Copper Standards. Nominal diameter Tolerance Over (mm) Up to and including (mm) 3.00 3.00 0.03mm 1%EN60889:1997 4 BSI 02-1999 10.2 Wrapping test One specimen cut from each of the samples taken under Clause8 shall be subjected to a wrapping test in accordance with
30、 ISO Standard7802. Eight turns shall be wrapped round a mandrel of diameter equal to the wire diameter at a speed not exceeding60rev/min. Six turns shall then be unwrapped and again closely wrapped. The wire shall not break. 11 Resistivity test The electrical resistivity of one specimen cut from eac
31、h of the samples taken under Clause8 shall be determined by the routine method specified in IECPublication468: Method of Measurement of Resistivity of Metallic Materials. The resistivity at20C shall be not greater than28.264 nWm. 12 Certificate of compliance The manufacturer shall, if requested, sup
32、ply the purchaser with a certificate giving the results of all the tests carried out on the samples. Table I Mechanical properties of hard-drawn aluminium wire Nominal diameter Minimum tensile strength (MPa) Over (mm) Up to and including (mm) 1.25 1.50 1.75 2.00 2.25 2.50 3.00 3.50 1.25 1.50 1.75 2.
33、00 2.25 2.50 3.00 3.50 5.00 200 195 190 185 180 175 170 165 160EN60889:1997 BSI 02-1999 5 Annex ZA (normative) Normative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other pu
34、blications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revi
35、sion. For undated references the latest edition of the publication referred to applies (including amendments). NOTEWhen an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC468 1974 Method of meas
36、urement of resistivity of metallic materials ISO6892 1984 Metallic materials Tensile testing a ISO7802 1983 Metallic materials Wire Wrapping test a This subject was harmonized by CEN as EN10000-2-1:1990.6 blankBSEN 60889:1997 BSI 02-1999 List of references See national foreword.BSI 389 Chiswick High
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