AS 1574-1996 Copper and copper alloys— Wire for electrical purposes.pdf

AS/NZS 1574:1996 Australian/New Zealand Standard Copper and copper alloys Wire for electrical purposes Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 12 Dec 2006 AS/NZS 1574:1996 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee MT/2, Copper and Copper Alloys. It was approved on behalf of the Council of Standards Australia on 5 February 1996 and on behalf of the Council of Standards New Zealand on 18 December 1995. It was published on 5 April 1996. The following interests are represented on Committee MT/2: AUSTAP Australian Foundry Institute Hunter Water Corporation, Australia Metal Trades Industry Association of Australia New Zealand Manufacturers Federation Welding Technology Institute of Australia Additional interests participating in preparation of Standard: Copper fabricators Manufacturers within the electrical industry Review of Standards. To keep abreast of progress in industry, Joint Australian/New Zealand Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions as necessary. It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto. Full details of all Joint Standards and related publications will be found in the Standards Australia and Standards New Zealand Catalogue of Publications; this information is supplemented each month by the magazines The Australian Standard andStandards New Zealand, which subscribing members receive, and which give details of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvements to Joint Standards, addressed to the head office of either StandardsAustralia orStandardsNew Zealand,are welcomed. Notificationof anyinaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should be made without delay in order that the matter may be investigated and appropriate action taken. This Standard was issued in draft form for comment as DR 95038. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 12 Dec 2006 AS/NZS 1574:1996 Australian/New Zealand Standard Copper and copper alloys Wire for electrical purposes PUBLISHED JOINTLY BY: STANDARDSAUSTRALIA 1 The Crescent, Homebush NSW 2140 Australia STANDARDSNEW ZEALAND Level 10, Standards House, 155 The Terrace, Wellington 6001 New Zealand ISBN 0 7337 0399 2 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 12 Dec 2006 AS /NZS 1574:19962 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee MT/2, Copper and Copper Alloys, to supersede AS 15741984. The objective of this Standard is to specify requirements for copper and copper alloy wire for the electrical industry. In this edition the copper and copper alloy designations of three of the four alloys have been changed from the three-digit system to the Unified Numbering System (UNS) comprising six characters commencing with the letter C. The copper-cadmium alloy (alloy 162 in the 1984 edition) has been replaced by a non-toxic tin-bearing copper alloy designated as alloy 149, because no equivalent UNS number is available at the present time. The Standard covers wires of all diameters but particular requirements are applicable to wires of up to 3 mm diameter. During the preparation of this Standard cognizance was taken of ISO 1638:1987, Wrought copper and copper alloy wireTechnical conditions of delivery. ISO 1638 was not considered to be an appropriate replacement for AS 1574 for the following reasons: 1 It covers wire for general engineering purposes and does not contain specific requirements for wire for electrical purposes. The mechanical properties specified do not cover copper wire of less than 3 mm diameter. 2 It refers to ISO 1337:1980, Wrought coppers (having minimum copper contents of 99.85%)Chemical composition and forms of wrought products, which gives chemical compositions for grades of pure copper and also requirements for electrical resistivity and conductivity. The copper designations used in ISO 1337 align with those in AS/NZS 1279, Copper refinery shapes. The policy of Committee MT/2 is to designate wrought copper and copper alloys in accordance with the Unified Numbering System. 3 It does not cover tin-coated copper wire, the hydrogen embrittlement test or requirements for new alloy 149. 4 ItreferstoISO 3492:1982,WroughtcopperandcopperalloysDrawnround wireTolerances on diameter, which does not give diameter tolerances for wires less than 0.5 mm in diameter. 5 The preference of Australian/New Zealand industry is to contain the requirements for copper and copper alloys for electrical purposes, in the one Standard. 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. CopyrightSTANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Users of Standards are reminded that copyright subsists in all Standards Australia and Standards New Zealand publications and software. 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Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 12 Dec 2006 3AS /NZS 1574:1996 CONTENTS Page FOREWORD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 SECTION 1 SCOPE AND GENERAL 1.1SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.2REFERENCED DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.3DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 1.4DESIGNATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 1.5ROUNDING OF TEST RESULT VALUES. . . . . . . . . . . . . . . . . . . . . . . .6 1.6PACKAGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 1.7MARKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 SECTION 2 SPECIFIC REQUIREMENTS 2.1SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 2.2CHEMICAL COMPOSITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 2.3TEMPER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 2.4MECHANICAL PROPERTIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 2.5MANUFACTURING TOLERANCES. . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2.6ELECTRICAL RESISTIVITY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2.7HYDROGEN EMBRITTLEMENT RESISTANCE (Applicable to C10100 and C10200 only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.8TINNING (Applicable to C11000 only) . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.9FREEDOM FROM DEFECTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.10 JOINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 SECTION 3 TEST METHODS 3.1SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.2SELECTION AND PREPARATION OF TEST SAMPLES . . . . . . . . . . . . . .11 3.3CHEMICAL ANALYSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3.4MECHANICAL TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3.5ELECTRICAL RESISTIVITY TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3.6HYDROGEN EMBRITTLEMENT TEST (Applicable to C10100 and C10200 only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.7TINNING TEST (Applicable to C11000 only). . . . . . . . . . . . . . . . . . . . . .11 3.8TEST REPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 APPENDICES APURCHASING GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 BRELATED COMPOSITION SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . .15 CSUPPLEMENTARY TESTING INFORMATION . . . . . . . . . . . . . . . . . . . . . .16 Originated in Australia as AS 15741975. Previous edition AS 15741984. Jointly revised and designated AS/NZS 1574:1996. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 12 Dec 2006 AS /NZS 1574:19964 FOREWORD Copper wire used in the electrical industry may be plain or tinned. Copper alloy wires referred to in this Standard are generally used as feed material for the production of conductors. Tinned wire is produced by hot-dip tinning of drawn wires or electrodeposition prior to final drawing and typically has a tin coating of less than 2 µm. This is insufficient to ensure the high solderability required in many applications in the electrical and electronic industries, particularly where automated soldering methods are employed. For these applications, heavier coatings of tin (or tin-lead alloy) may be specified. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 12 Dec 2006 5AS/NZS 1574:1996 STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Copper and copper alloysWire for electrical purposes S E C T I O N1S C O P EA N DG E N E R A L 1.1SCOPEThis Standard specifiesrequirements for wires for general electrical purposes supplied in forms other than straight lengths and manufactured from materials of the following alloy designations, tempers and finish: MaterialTemperFinish Oxygen-free electronic copper (C10100) annealed hard plain plain Oxygen-free copper (C10200)annealed hard plain plain Electrolytic tough pitch copper (C11000) annealed hard plain or tinned plain or tinned Tin-bearing copper (149)hardplain This Standard applies to wires which may be used in the production of insulated wires and cables and for other electrical applications. It does not apply to wires intended for special applications such as those requiring enamelling or textile covering nor does it apply to wires taken from stranded conductors, either bare or covered, or from insulated cables and flexible cords. The type of tin coating specified in this Standard is not intended as an assurance of solderability; its purpose is to provide corrosion resistance. NOTES: 1Advice and recommendations on information to be supplied by the purchaser at the time of enquiry or order are contained in Appendix A. 2Related composition specifications are given in Appendix B. 1.2REFERENCED DOCUMENTSThe following documents are referred to in this Standard: AS 1391Methods for tensile testing of metals 2614Copper and copper alloysSampling for chemical analysis and electrical resistivity 2706Numerical valuesRounding and interpretation of limiting values K208Methods for the analysis of unalloyed copper K208.1Method for the electrolytic determination of copper in unalloyed copper containing not less than 99.85 percent copper IEC 28International standard of resistance for copper ISO 2626CopperHydrogen embrittlement test COPYRIGHT Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 12 Dec 2006 AS/NZS 1574:19966 ASTM E 53Test methods for chemical analysis of copper BS 125Specification for hard-drawn copper and copper-cadmium conductors for overhead power transmission purposes 5714Method of measurement of resistivity of metallic materials 1.3DEFINITIONSFor the purpose of this Standard the definitions below apply. 1.3.1Mean diameterthe average of two diameter measurements made at right angles to one another at the same cross-section at any position along the length. 1.3.2Ovality the difference between maximum and minimum diameter measurements taken at the same cross-section. 1.3.3Wirea solid product, other than strip or foil, of round cross-section, supplied in coils or on spools, reels or drums. 1.4DESIGNATION 1.4.1GeneralThe wire designation shall comprise the number of this Australian/New Zealand Standard, i.e. AS/NZS 1574, followed by a slash and characters to indicate the alloy and temper designations, in accordance with Clauses 1.4.2 and 1.4.3 respectively. 1.4.2Alloy designationThe alloy designation shall comprise six characters commencing with the letter C, in accordance with the Unified Numbering System (UNS) or, when a UNS number is not available, by a three-digit number. 1.4.3Temper designationThe temper designation shall comprise one of the following letters, as appropriate: O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . annealed. H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . hard. Example of complete designation: AS/NZS 1574/C11000-H 1.5ROUNDING OF TEST RESULT VALUES 1.5.1GeneralWith the exception of tensile test 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. For example, for specified maximum or minimum values of 2.5, 2.50 and 2.500, the observed or calculated value would be rounded respectively to the nearest 0.1, 0.01 and 0.001 (see also AS 2706). 1.5.2Tensile test resultsThe determined value of tensile strength shall be rounded to the nearest 10 MPa. 1.6PACKAGINGThe method of packaging shall be such as to ensure protection of the product during transit and to facilitate handling by the purchaser. 1.7MARKINGEach package shall be legibly and durably marked or tagged to indicate the follo