ASTM_B_400_-_B_400M_-_14.pdf

Designation:B400/B400M14Standard Specification forCompact Round Concentric-Lay-Stranded Aluminum 1350Conductors1This standard is issued under the fixed designation B400/B400M;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 aluminum 1350-H19(extrahard),1350-H16 or-H26(n hard),1350-H14 or-H24(12hard)and 1350-H142 or-H242(12hard)bare compact-roundconcentric-lay-stranded conductors made from round or shapedwires for use as uninsulated electrical conductors or in coveredor insulated electrical conductors.These conductors shall becomposed of a central core surrounded by one or more roller ordie compacted layers of helically applied wires(ExplanatoryNote 1 and Note 2).1.2 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.NOTE1Prior to 1975,aluminum 1350 was designated as ECaluminum.NOTE2The aluminum and temper designations conform to ANSIStandard H35.1.Aluminum 1350 corresponds to Unified NumberingSystem A91350 in accordance with Practice E527.2.Referenced Documents2.1 ASTM Standards:2B230/B230M Specification for Aluminum 1350H19 Wirefor Electrical PurposesB231/B231M Specification for Concentric-Lay-StrandedAluminum 1350 ConductorsB263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB354 Terminology Relating to Uninsulated Metallic Electri-cal ConductorsB609/B609M Specification for Aluminum 1350 RoundWire,Annealed and Intermediate Tempers,for ElectricalPurposesE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)2.2 Other Documents:ANSI H35.1/H35.1(M)Alloy and Temper Designation Sys-tems for Aluminum3NBS Handbook 100-Copper Wire Tables,of the NationalBureau of Standards43.Classification3.1 For the purpose of this specification,conductors areclassified as follows:3.1.1 Class AAFor bare conductors usually used in over-head lines.3.1.2 Class AFor conductors to be covered with weather-resistant materials,and for bare conductors where greaterflexibility than is afforded by ClassAAis required.Conductorsindicated for further fabrication into tree wire or to be insulatedand laid helically with or around aluminum or ACSRmessengers,shall be regarded as Class A conductors withrespect to direction of lay only(see 6.3).3.1.3 Class BFor conductors to be insulated with variousmaterials such as rubber,paper,varnished cloth,and so forth,and for the conductors indicated under Class A where greaterflexibility is required.4.Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Quantity of each size and class(Table 1),4.1.2 Conductor size;circular-mil area or AWG(Section 7),4.1.3 Class(Section 3),4.1.4 Temper(Section 13),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 Jan.1,2014.Published January 2014.Originallyapproved in 1963.Last previous edition approved in 2008 as B400/B400M 081.DOI:10.1520/B0400_B0400M-14.2For 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 Technical Information Service(NTIS),5285 PortRoyal Rd.,Springfield,VA 22161,http:/www.ntis.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.1.5 Lay direction if nonstandard(see 6.3 and 6.4),re-versed or unidirectional(see 6.4)or special(see 6.5),4.1.6 Special tension test,if required(see 17.2),4.1.7 Place of inspection(Section 18),and4.1.8 Packaging and Package Marking(Section 19).5.Joints5.1 1350-H19 Conductors for Use in Bare Overhead Lines:5.1.1 Joints may be made in the six outer wires of seven-strand conductors by cold-pressure welding or by electric-butt,cold-upset welding,but not by electric-butt welding.Joints arenot permitted in the finished center wire of seven-strandedconductors.5.1.2 Joints may be made in any of the wires in conductorsof 18 or more wires by electric-butt welding,cold-pressurewelding,or electric butt,cold-upset welding.5.1.3 The minimum distance between a wire joint andanoth