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1、AS/NZS 3863:2002Australian/New Zealand StandardGalvanized mild steel wire for armouring of cablesFirst published as AS 38631991.Jointly revised and designated AS/NZS 3863:2002.COPYRIGHT Standards Australia/Standards New ZealandAll rights are reserved. No part of this work may be reproduced or copied
2、 in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher.Jointly published by Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 60203ISBN 0 7337 4586 55A
3、S/NZS 3863:2002PREFACEThis Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee EL-003, Electric Wires and Cables to supersede AS 38631991, Galvanized mild steel wire for armouring cables.The objective of the Standard is to specify requirements for galvanized cold-d
4、rawn mild steel wire of round cross-section used for the armouring of electric and telecommunication cables.This Standard differs from the previous edition in the following significant ways: (a)The Standard is published as a Joint Australian/New Zealand Standard.(b)An additional wire size of nominal
5、 diameter 0.80 mm has been included. (c)An adhesion of coating test has been included.(d)The coating mass requirements have been aligned with the requirements ofAS/NZS 4534 Class W10.(e)The electrical resistance requirements have been based on a resistivity of 0.17 mW.m to align with AS 3607.(f)Appe
6、ndix B has been deleted.The term informative has been used in this Standard to define the application of the appendix to which it applies. An informative appendix is only for information and guidance.CONTENTSPage1SCOPE . 42REFERENCED DOCUMENTS . 43JOINTS . 44DIAMETER TOLERANCES . 45TENSILE TEST . 56
7、TORSION TEST . 67COATING MASS . 68ELECTRICAL RESISTANCE . 79ADHESION OF COATING . 810PACKING . 811MARKING. 812ROUNDING OF TEST RESULT NUMBERS . 8APPENDIX A PURCHASING GUIDELINES . 9STANDARDS AUSTRALIA/STANDARDS NEW ZEALANDAustralian/New Zealand StandardGalvanized mild steel wire for armouring of cab
8、les1 SCOPEThis Standard specifies requirements for cold-drawn mild steel wire of round cross-section, galvanized (zinc-coated) for the armouring of electric and telecommunication cables.NOTE: Advice and recommendations on information to be supplied by the purchaser at the time of enquiry or order ar
9、e contained in the purchasing guidelines set out in Appendix A.2 REFERENCED DOCUMENTSThe following documents are referred to in this Standard: AS1391Methods for tensile testing of metals2505Methods for bend and related testing of metals2505.5Part 5:Torsion and wrapping tests on wire2706Numerical val
10、uesRounding and interpretation of limiting valuesAS/NZS4534Zinc and zinc/aluminium-alloy coatings on steel wireIEC60468Method of measurement of resistivity of metallic materials3 JOINTSThe wire, as delivered, shall contain no joints other than welds.Joints shall be made with the ends essentially in
11、line and burrs removed.4 DIAMETER TOLERANCESDiameter shall be determined by taking two measurements at right angles to each other at three places along a length not less than 250 mm. The average of these six measurements shall be taken as the diameter.The diameter tolerances shall be in accordance w
12、ith Table 1.COPYRIGHTTABLE 1NOMINAL DIAMETERS AND TOLERANCES OF COATED WIRENominal wire diameterTolerance on diameter(plus or minus)mmmm0.300.020.450.020.710.030.800.040.900.051.250.051.600.052.000.072.500.073.150.084.000.105.000.105.600.135 TENSILE TESTWhen tested in accordance with AS 1391 immedia
13、tely after galvanizing, using the original gauge lengths specified in Table 2, the tensile strength shall be within the limits 340 MPa to500 MPa inclusive, and the percentage elongation after fracture shall be in accordance withthe following:(a)For nominal diameters of greater than 0.90 mm . 10% min
14、imum. (b)For nominal diameters less than or equal to 0.90 mm . 7.5% minimum.NOTES:1The test pieces should not contain welded joints.2Wire diameter measurements include the galvanized coating.3It should be noted that galvanized mild steel may undergo age-hardening over a period of weeks after final p
15、rocessing. This can cause an increase in the tensile strength of up to 10% and a reduction in the percentage elongation value of up to 20% of the values obtained immediately after final processing.9AS/NZS 3863:2002TABLE 2REQUIREMENTS FOR ORIGINAL GAUGE LENGTH FOR THE DETERMINATION OF PERCENTAGE ELON
16、GATIONNominal wire diameterOriginal gauge lengthmmmm0.30300.45450.71700.80800.90901.251251.601602.002002.502503.152504.002505.002505.602506 TORSION TESTWhen tested in accordance with AS 2505.5, on a test piece whose gauge length conforms with Table 3, the wire shall withstand not less than the minim
17、um number of turns specified in Table 3 without breaking or showing splits or other defects.TABLE 3REQUIREMENTS FOR TORSION TESTNominal wire diameter mmGauge length mmMinimum number of turns to cause failure0.300.450.710.800.901.251.602.002.503.154.005.005.6050757575757515015015015015015015067674238
18、3324373024191512117 COATING MASSWhen tested in accordance with one of the methods specified in AS/NZS 4534, the zinc coating shall comply with Table 4. In cases of dispute, the gravimetric method described in AS/NZS 4534 shall be the reference method for determining the coating mass.TABLE 4COATING M
19、ASS REQUIREMENTSSpecified nominal diameterof coated wireMinimumcoating massmmg/m20.30450.45750.711200.801300.901401.251701.602002.002152.502303.152404.002605.002755.602908 ELECTRICAL RESISTANCEWhere required, the d.c. resistance of the galvanized wire shall be determined by the routine method given
20、in IEC 60468. The determination shall be performed at room temperature, and the result corrected to 20C using a resistance-temperature coefficient of0.005/K. The resistance shall not exceed the appropriate value given in Table 5.TABLE 5ELECTRICAL RESISTANCE REQUIREMENTSNominal wire diameterMaximum d
21、.c. resistance at20CmmW/km*0.300.450.710.800.901.25241010704303402651401.6084.62.0054.12.5034.63.1521.84.0013.55.008.665.606.90* Based on a resistivity of 0.17 mW.m measured at 20C.9 ADHESION OF COATINGThe adhesion of the zinc coating shall be tested by wrapping the wire at least six close turns aro
22、und a cylindrical mandrel. The ratio of mandrel diameter to nominal wire diameter (d) shall be in accordance with Table 6.The zinc coating shall remain firmly adherent to the steel and shall not crack or flake to such an extent that any flakes of zinc can be removed by rubbing with bare fingers.TABL
23、E 6RATIO OF MANDREL DIAMETER TO NOMINAL WIRE DIAMETERNominal wire diameter(d)mmMandrel diameter 3.84d 3.85d10 PACKINGThe wire manufacturer shall ensure that every coil is securely tied with not less than three binders of suitable material, approximately evenly spaced. For material supplied other tha
24、n in coils, each packing unit shall be secured such that the material does not unroll.11 MARKINGEach packing unit shall be marked or tagged with a label with clear and durable marking, to enable it to be identified, and to enable test results to be related to that particular packing unit.NOTE: Manuf
25、acturers making a statement of compliance with this Australian/New Zealand Standard on a product or on packaging or promotional material related to that product are advised to ensure that such compliance is capable of being verified.12 ROUNDING OF TEST RESULT NUMBERS12.1 GeneralWith the exception of
26、 the tensile test and coating mass results, the observed or calculated values shall be rounded to the same number of figures as in the specified values and then compared with the specified values (see also AS 2706).12.2 Tensile strength valueThe determined value of tensile strength shall be rounded
27、off to the nearest 10 MPa.12.3 Coating mass valueThe determined value of coating mass shall be rounded off to the nearest 5 g/m2 in accordance with AS/NZS 4534.APPENDIX APURCHASING GUIDELINES(Informative)A1 GENERALAustralian/New Zealand Standards are intended to include the technical requirements fo
28、r relevant products, but do not purport to comprise all the necessary provisions of a contract. This Appendix contains advice and recommendations on the information to be supplied by the purchaser at the time of enquiry or order.A2 INFORMATION TO BE SUPPLIED BY THE PURCHASERThe purchaser should supp
29、ly the following information at the time of enquiry and order after making due reference to the advice contained in this Appendix:(a)Quantity and delivery instructions (dates, schedules, delivery point). (b)Nominal diameter of wire.(c)Any limitations in regard to packing unit mass and dimensions.NOT
30、E: Purchasers should ensure that their equipment can handle the packing units ordered, and if any limitations exist in respect of packing unit mass or dimensions, this should be stated at the time of enquiry or order.(d)Whether a certificate covering any tests is required.(e)Any special or supplemen
31、tary requirements, e.g. special finishing, packing or handling.(f)Whether it is the intention of the purchaser to inspect the wire at the manufacturers works.(g)Any information concerning processing or end use that the purchaser considers would assist the manufacturer.(h)Whether electrical resistance measurement is required.国内外标准大全豆丁网国内外标准下载地址 http:/