ASTM_B_524_-_B_524M_-_99_2016.pdf

Designation:B524/B524M99(Reapproved 2016)Standard Specification forConcentric-Lay-Stranded Aluminum Conductors,Aluminum-Alloy Reinforced(ACAR,1350/6201)1This standard is issued under the fixed designation B524/B524M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers concentric-lay-stranded con-ductors made from round aluminum 1350-H19(extra hard)wires and round aluminum-alloy 6201-T81(hard:solution heattreated,cold worked,and then artificially aged)core wires foruse as overhead electrical conductors(Explanatory Note 1).NOTE1The aluminum,alloy,and temper designations conform toANSI H35.1/ANSI H35.1M.Aluminum 1350 and Alloy 6201 corre-spond to unified numbering system A91350 and A96201,respectively,inaccordance with Practice E527.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.2.1 For density,resistivity and temperature,the valuesstated in SI units are to be regarded as standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 The following documents of the issue in effect on dateof material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:2B230/B230M Specification for Aluminum 1350H19 Wirefor Electrical PurposesB263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB354 Terminology Relating to Uninsulated Metallic Electri-cal ConductorsB398/B398M Specification for Aluminum-Alloy 6201-T81and 6201-T83 Wire for Electrical PurposesB682 Specification for Metric Sizes of Electrical ConductorsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)2.3 ANSI Standard:ANSI H35.1 American National Standard for Alloy andTemper Designation Systems for Aluminum3ANSI H35.1M American National Standard for Alloy andTemper Designation Systems for Aluminum32.4 NIST Document:NBS Handbook 100 Copper Wire Tables43.Ordering Information3.1 Orders for material under this specification shall includethe following information:3.1.1 Quantity of each size and stranding;3.1.2 Conductor size(see 7.1);3.1.3 Total number of wires,aluminum 1350 and aluminumalloy 6201(Table 1 or Table 2);3.1.4 Direction of lay of outer layer of wires if other thanright-hand(see 6.2);3.1.5 Special tension test,if required(see 8.2);3.1.6 Place of inspection(see 14.1);3.1.7 Package size and type(see 16.1);3.1.8 Heavy wood lagging,if required(Section 16);and3.1.9 Special package marking,if required(Section 15).4.Requirement for Wires4.1 Before stranding,the 1350-H19 wire used shall meet therequirements of Specification B230/B230M.4.2 Before stranding,the 6201-T81 wire used shall meet therequirements of Specification B398/B398M.1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommittee B01.07 onConductors of Light Metals.Current edition approved Oct.1,2016.Published October 2016.Originallyapproved in 1970.Last previous edition approved in 2011 as B0524/B524M 99(2011).DOI:10.1520/B0524_B0524M-99R16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.4Available from National Institute of Standards and Technology(NIST),100Bureau Dr.,Stop 1070,Gaithersburg,MD 20899-1070,http:/www.nist.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 TABLE 1 Construction Requirements of Concentric-Lay-Stranded Aluminum Conductors,Aluminum Alloy ReinforcedConductor SizeRequired ConstructionRecommended Package SizesANumberof WiresBDiameterof WiresNominalOutsideDiameterReelDesignationApproximateLength of EachPieceApproximateMass of EachLengthCcmilAWGmm2in.mmin.mmftmlbkg3 000 0001520910.18164.6131.99850.74RMT 90.453 2009759 10041302 750 0001393910.17384.4151.91248.56RMT 90.453 49010659 10041302 500 0001267910.16574.2091.82346.30RMT 90.453 84011709 10041302 493 0001263910.16554.2041.820746.25RMT 96.606 500198115 40069702 338 0001185610.19584.9731.762044.75RMT 96.607 50