BS EN 62004-2009 Thermal-resistant aluminium alloy wire for overhead line conductor《架空线路导线的耐热铝合金导线》.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Thermal-resistant aluminiumalloy wire for overhead lineconductorBS EN 62004:2009National forewordThis British Sta

2、ndard is the UK implementation of EN 62004:2009. It wasderived by CENELEC from IEC 62004:2007.The CENELEC common modifications have been implemented at the appropriate places in the text and are indicated by tags (e.g. )The UK participation in its preparation was entrusted to Technical CommitteeGEL/

3、7, Overhead electrical conductors.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2009 ISBN 978 0 580 55240

4、3 ICS 29.060.10; 29.240.20Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2009Amendments issued since publicationAmd. No. Date Text affectedBRITISH STA

5、NDARDBS EN 62004:2009EUROPEAN STANDARD EN 62004 NORME EUROPENNE EUROPISCHE NORM June 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 B

6、russels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62004:2009 E ICS 17.220.20; 29.240.20 English version Thermal-resistant aluminium alloy wire for overhead line conductor (IEC 62004:2007, modified) Fils en alliage dalum

7、inium rsistant la chaleur pour les conducteurs de lignes ariennes (CEI 62004:2007, modifie) Wrmebestndige Drhte aus Aluminiumlegierung fr Leiter von Freileitungen (IEC 62004:2007, modifiziert) This European Standard was approved by CENELEC on 2009-05-01. CENELEC members are bound to comply with the

8、CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a 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

9、to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version 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 officia

10、l versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, R

11、omania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 62004:2009EN 62004:2009 2 Foreword The text of the International Standard IEC 62004:2007, prepared by IEC TC 7, Overhead electrical conductors, together with common modifications prepared by CENELEC BTTF 129-1, Ther

12、mal-resistant aluminium alloy wire for overhead line conductor, was submitted to the formal vote and was approved by CENELEC as EN 62004 on 2009-05-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard

13、 or by endorsement (dop) 2010-05-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-05-01 This European Standard is a consolidated version consisting of the text of the International Standard IEC 62004:2007 plus the agreed common modifications, whi

14、ch are identified by a vertical line in the left margin of the text. _ BS EN 62004:2009 3 EN 62004:2009 Contents 1 Scope 4 2 Normative references . 4 3 Terms and definitions 4 4 Designation . 4 5 Values for thermal-resistant aluminium alloy wire . 5 6 Requirement . 5 6.1 Material . 5 6.2 Freedom fro

15、m defects . 5 6.3 Diameter and tolerance on diameter 5 6.4 Tensile stress 6 6.5 Elongation . 6 6.6 Electrical resistivity . 7 6.7 Thermal-resistant property 7 6.8 Length and tolerance on length . 7 6.9 Joints 7 6.10 Wrapping . 7 6.11 Sampling . 8 7 Tests . 8 7.1 Place of testing . 8 7.2 Classificati

16、on of tests 8 7.3 Test method 9 8 Acceptance and rejection . 10 Annex A (informative) Thermal-resistant property 11 Bibliography 13 Figure Figure A.1 Arrhenius plot (residual stress 90 %) 11 Tables Table 1 Values for thermal-resistant aluminium alloy wire 5 Table 2 Diameter and tolerance on diameter

17、 5 Table 3 Tensile stress and elongation of wires (before stranding) 6 Table 4 Electrical resistivity . 7 Table 5 Duration and temperature of heating to affirm thermal-resistant property . 7 BS EN 62004:2009EN 62004:2009 4 1 Scope This European Standard is applicable to thermal-resistant aluminium a

18、lloy wires before stranding for manufacture of stranded conductors for overhead lines. It specifies the mechanical, electrical and thermal-resistant properties of wires in the diameter range commercially available. 2 Normative references The following referenced documents are indispensable for the a

19、pplication of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 50183:2000, Conductors for overhead lines - Aluminium-magnesium-silicon alloy wires EN 60889:1997, Hard-draw

20、n aluminium wire for overhead line conductors (IEC 60889:1987) IEC 60468:1974, Method of measurement of resistivity of metallic materials ISO 7802, Metallic materials - Wire - Wrapping test 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 diam

21、eter mean of two measured values at right angles taken at the same cross section NOTE For non-round wires, the equivalent diameter of the round wire with the same section is used. 3.2 type thermal-resistant aluminium alloy wires defined as “AT1”, “AT2”, “AT3” and “AT4” 3.3 thermal-resistant aluminiu

22、m alloy wire all types of aluminium-zirconium alloy wire, used at operation temperature higher than that of conventional aluminium-magnesium-silicon alloy wire, as specified in EN 50183, or hard-drawn aluminium wire for overhead line conductors, as specified in EN 60889, with an allowable operating

23、temperature as described in Table 1. The operation temperature of conventional hard-drawn aluminium wires as well as conventional aluminium-magnesium-silicon alloy wires is limited with 80 C 4 Designation The wire designations included in this standard are as follows: thermal-resistant aluminium all

24、oy wire with maximum allowable continuous operating temperature of 150 C, designated AT1; extra high-strength, thermal-resistant aluminium alloy wire with maximum allowable continuous operating temperature of 150 C, designated AT2; super thermal-resistant aluminium alloy wire with maximum allowable

25、continuous operating temperature of 210 C, designated AT3; extra thermal-resistant aluminium alloy wire with maximum allowable continuous operating temperature of 230 C, designated AT4. BS EN 62004:2009 5 EN 62004:2009 5 Values for thermal-resistant aluminium alloy wire For calculation purposes, the

26、 values given in Table 1 shall be used for thermal-resistant aluminium alloy wire. Table 1 Values for thermal-resistant aluminium alloy wireType AT1 AT2 AT3 AT4 Density at 20 C (g/cm3) 2,703 2,703 2,703 2,703 Allowable continuous operating temperature (40 years) (C) 150 150 210 230 Allowable operati

27、ng temperature in 400 h (C) 180 180 240 310 Coefficient of linear expansion (/C) 23 10623 10623 10623 106Constant-mass temperature coefficient of resistance at 20 C (/C) 0,004 0 0,003 6 0,004 0 0,003 8 6 Requirement 6.1 Material The wires shall be of aluminium-zirconium alloy having a composition ap

28、propriate to the mechanical, electrical and thermal-resistant properties specified hereunder for type AT1, AT2, AT3 and AT4, respectively. The supplier should provide the purchaser on request with the analysis certificate of the raw material. 6.2 Freedom from defects The wires shall be smooth and fr

29、ee from all imperfections such as cracks, roughness, grooves, inclusions or other defects which may endanger the performance of the product. 6.3 Diameter and tolerance on diameter The nominal diameter of the wires shall be expressed in millimetres to two decimal places. Each measured value of wire d

30、iameter shall not depart from the nominal diameter by more than the amounts given in Table 2. For the purpose of checking compliance with the above requirement, the diameter shall be determined by the mean of the two measurements at right angles taken at the same cross-section. Table 2 Diameter and

31、tolerance on diameter Nominal diameter Tolerance Over mm Up to and including mm 3,00 3,00 0,03 mm 1 % BS EN 62004:2009EN 62004:2009 6 6.4 Tensile stress The wire shall comply with the requirements given in Table 3. The tensile stress of a single wire shall be computed by dividing the breaking load b

32、y the cross-sectional area. The cross-sectional area shall be determined using the measured diameter of the test specimen. For non-round wire, shaped before stranding, its equivalent diameter of the round wire with the same section shall be used and the calculation result of tensile stress shall com

33、ply with the requirements given in Table 3. The tensile stress of the non-round wire shaped during stranding may be measured after un-stranding, whose value shall be not less than 95 % of the applicable stress requirements given in Table 3. 6.5 Elongation Each measured value of wire elongation shall

34、 not be less than the amounts given in Table 3. Table 3 Tensile stress and elongation of wires (before stranding) Type Nominal diameter mm Tensile stress minimum MPa Minimum elongation at 250 mm % Over Up to and including AT1 2,00 a171 1,3 2,00 2,30 1,4 2,30 2,60 169 1,5 2,60 2,90 166 1,6 2,90 3,50

35、162 1,7 3,50 3,80 1,8 3,80 4,00 159 1,9 4,00 4,50a2,0 AT2 2,60a248 1,5 2,60 2,90 245 1,6 2,90 3,50 241 1,7 3,50 3,80 1,8 3,80 4,00 238 1,9 4,00 4,50a225 2,0 AT3 2,30a176 1,5 2,30 2,60 169 2,60 2,90 166 1,6 2,90 3,50 162 1,7 3,50 3,80 1,8 3,80 4,00 159 1,9 4,00 4,50a2,0 AT4 2,60a169 1,5 2,60 2,90 165

36、 1,6 2,90 3,50 162 1,7 3,50 3,80 1,8 3,80 4,00 159 1,9 4,00 4,50a2,0 aFor nominal diameters below the smallest and diameters above the biggest, the requirements have to be agreed between purchaser and supplier. BS EN 62004:2009 7 EN 62004:2009 6.6 Electrical resistivity The electrical resistivity at

37、 20 C shall not be greater than the value given in Table 4. Table 4 Electrical resistivity Type AT1 AT2 AT3 AT4 Resistivity at 20 C, max. (nm) (conductivity, corresponding to IACS) 28,735 (60,0 %) 31,347 (55,0 %) 28,735 (60,0 %) 29,726 (58,0 %) NOTE IACS stands for the International Annealed Copper

38、Standard (see IEC 60028). 6.7 Thermal-resistant property The residual ratio of the tensile stress after heating the wire for the designated duration and temperature given in Table 5 shall not be individually less than 85 % and average of 90 % at room temperature compared with the initial measured va

39、lue before heating. Table 5 Duration and temperature of heating to affirm thermal-resistant property Duration h Temperature C AT1 AT2 AT3 AT4 1 Temperature of heating 230 230 280 400 Tolerance in temperature + 5 3 + 5 3 + 5 3 + 10 6 400 Temperature of heating 180 180 240 310 Tolerance in temperature

40、 + 10 6 + 10 6 + 10 6 + 10 6 6.8 Length and tolerance on length The nominal length of each coil or reel of wire and the tolerance on length shall be subject to an agreement between the purchaser and the manufacturer. 6.9 Joints Joints may be made prior to final drawing. A joint shall be made by elec

41、tric butt welding, butt cold upset welding, cold pressure welding or other approved methods. Those joints shall be made in accordance with good commercial practice. A joint could be made in the finished wire, provided that a) the coil is 500 kg or heavier, b) there is not more than one joint in such

42、 coils, c) not more than 10 % 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 than 130 MPa, e) coils containing a joint made in the finished wire shall be clearly identified. 6.10 Wra

43、pping The wire shall not be broken in the test according to 7.3.7. BS EN 62004:2009EN 62004:2009 8 6.11 Sampling Specimen for tests specified in Clause 7 shall be taken by the manufacturer from 10 % of the individual length of wire included in any one consignment. Where the numbers of wire specimens

44、 are large in quantity, they may be reduced, by agreement between the purchaser and the manufacturer, when the manufacturer has demonstrated capability of meeting or exceeding the requirements. 7 Tests 7.1 Place of testing Unless otherwise agreed between the purchaser and the manufacturer at the tim

45、e of ordering, all tests shall be carried out at the manufacturers works. 7.2 Classification of tests Test requirements are as follows and shall be made on each sample before stranding. 7.2.1 Type tests Type tests shall be made only once for the following test items, before supplying a type of wire

46、covered by this standard to demonstrate satisfactory performance characteristics for meeting its intended application. Type tests shall only be carried out on a wire which also meets the requirements of the relevant factory acceptance tests described in 7.2.2. These tests are of such a nature that,

47、after they have been completed, they do not need to be repeated unless significant changes are made to the wire material, design or type of manufacturing process, which might change the performance characteristics: thermal-resistant property in 400 h; thermal-resistant property in 1 h. 7.2.2 Factory

48、 acceptance tests Tests shall be made, if required in the presence of the purchasers representative, for the following test items, using sample wires taken from the finished products to verify that they meet design specifications. The sampling of the factory acceptance tests shall be agreed between

49、the purchaser and the manufacturer: a) appearance; b) diameter; c) tensile stress; d) elongation; e) electrical resistivity; f) thermal-resistant property in 1 h (based on Arrhenius rule, see Annex A, thermal-resistant property in 1 h is sufficient to characterize the material); g) wrapping resistant property. Failure of a test specimen to comply with any one of the requirements of this standard shall co