1、Designation:B524/B524M18Standard 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 cas
2、e 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(
3、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 co
4、rre-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 consi
5、dered 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-pria
6、te safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopmen
7、t of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.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 here
8、in:2.2 ASTM Standards:2B193 Test Method for Resistivity of Electrical ConductorMaterialsB230/B230M Specification for Aluminum 1350H19 Wirefor Electrical PurposesB263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB354 Terminology Relating to Uninsulated Metallic Electri-c
9、al ConductorsB398/B398M Specification for Aluminum-Alloy 6201-T81and 6201-T83 Wire for Electrical PurposesB682 Specification for Standard Metric Sizes of ElectricalConductorsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE527 Practice for Numbering
10、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
11、 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
12、 outer layer of wires if other thanright-hand(see 6.2);3.1.5 Special tension test,if required(see 8.2);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 appr
13、oved March 1,2018.Published March 2018.Originallyapproved in 1970.Last previous edition approved in 2015 as B0524/B524M 99(2015).DOI:10.1520/B0524_B0524M-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMSt
14、andards 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
15、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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Deci
16、sion on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 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 0