ASTM_B_232_-_B_232M_-_11.pdf

Designation:B232/B232M11Standard Specification forConcentric-Lay-Stranded Aluminum Conductors,Coated-Steel Reinforced(ACSR)1This standard is issued under the fixed designation B232/B232M;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,coated steel core wire(s)for use as overheadelectrical conductors(Explanatory Note 1 and ExplanatoryNote 2).1.2 ACSR covered by this specification has nine types ofcoated steel core wire which are designated by abbreviations asfollows(Explanatory Note 2):1.2.1 ACSR/GA or ACSR/GA2ACSR using Class A zinc-coated steel wire,1.2.2 ACSR/GC or ACSR/GC2ACSR using Class C zinc-coated steel wire,1.2.3 ACSR/MA or ACSR/MA2ACSR using Class A Zn-5A1-MM coated steel wire,1.2.4 ACSR/HS or ACSR/GA3ACSR using Class A zinc-coated high-strength steel wires,1.2.5 ACSR/MS or ACSR/MA3ACSR using Class A Zn-5A1-MM coated high-strength steel wires,1.2.6 ACSR/GA4ACSR using Class A zinc-coated extra-high-strength steel wires,1.2.7 ACSR/MA4ACSR using Class A Zn-5A1-MMcoated extra-high-strength steel wires,1.2.8 ACSR/GA5ACSR using Class A zinc-coated ultra-high-strength steel wires,1.2.9 ACSR/MA5ACSR using ClassAZn-5Al-MM coatedultra-high-strength steel wires.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.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 ConductorsB498/B498M Specification for Zinc-Coated(Galvanized)Steel Core Wire for Use in Overhead Electrical Conduc-torsB500/B500M Specification for Metallic Coated or Alumi-num Clad Stranded Steel Core for Use in OverheadElectrical ConductorsB606 Specification for High-Strength Zinc-Coated(Galva-nized)Steel Core Wire for Aluminum and Aluminum-Alloy Conductors,Steel ReinforcedB802/B802M Specification for Zinc5%Aluminum-Mischmetal Alloy-Coated Steel Core Wire for AluminumConductors,Steel Reinforced(ACSR)B803 Specification for High-Strength Zinc5%Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use inOverhead Electrical ConductorsB957 Specification for Extra-High-Strength and Ultra-High-Strength Zinc-Coated(Galvanized)Steel Core Wire forOverhead Electrical ConductorsB958 Specification for Extra-High-Strength and Ultra-High-Strength Class A Zinc5%Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead ElectricalConductorsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)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.1,2011.Published November 2011.Originallyapproved in 1948.Last previous edition approved in 2009 as B232/B232M 09.DOI:10.1520/B0232_B0232M-11.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2.3 ANSI Documents:ANSI H35.1 American National Standard Alloy and TemperDesignation Systems for Aluminum3ANSI H35.1M American National Standard for Alloy andTemper Designations Systems for Aluminum Metric32.4 NIST Document:NBS Handbook 100Copper Wire Tables42.5 Aluminum Association Document:Publication 50,Code Words for Overhead Aluminum Elec-trical Conductors53.Terminology3.1 Definitions:3.1.1 Galvanizedzinc coated.3.1.2 Aluminizedaluminum coated.3.2 Abbreviations:3.2.1 Zn-5A1-MMzinc-5%aluminum-mischmetal alloy.3.2.2 ACSRaluminum conductor,steel reinforced.3.2.3 ACSR/GA or ACSR/GA2reinforced with galvanizedsteel core wire,coating Class A in accordance with Specifica-tion B498/B498M.3.2.4 ACSR/GC or ACSR/GC2reinforced with galvanizedsteel core wire,coating Class C in accordance with Specifica-tion B498/B498M.3.2.5 ACSR/HS or ACSR/GA3reinforced with high-strength galvanized steel core wire in accor