ASTM_B_226_-_11_2016.pdf

Designation:B22611(Reapproved 2016)Standard Specification forCored,Annular,Concentric-Lay-Stranded CopperConductors1This standard is issued under the fixed designation B226;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers cored,annular,concentric-lay-stranded conductors made from round soft copper wires,eitheruncoated or coated with tin for use as electrical conductors(Explanatory Note 1 and Note 2).1.2 The constructions prescribed herein are suitable for bareconductors,or for conductors to be covered with weather-resistant(weather-proof)material,or for conductors to beinsulated with rubber,varnished cloth,or impregnated paper,except types such as“oil-filled”or“gas-filled”(ExplanatoryNote 3).1.3 Cored,annular conductor constructions not included inthis specification shall be specifically agreed upon between themanufacturer and the purchaser when placing the order.1.4 These constructions are not recommended for use aselectric furnace leads where great flexibility is required andspecial conductor designs are indicated in consideration of theparticular service requirements.1.5 The SI values for density are regarded as the standard.For all other properties the inch-pound values are to beregarded as standard and the SI units may be approximate.2.Referenced Documents2.1 The following documents in effect at the time ofreference form a part of these methods to the extent referencedherein:2.2 ASTM Standards:2B3 Specification for Soft or Annealed Copper WireB8 Specification for Concentric-Lay-Stranded CopperConductors,Hard,Medium-Hard,or SoftB33 Specification for Tin-Coated Soft or Annealed CopperWire for Electrical PurposesB172 Specification for Rope-Lay-Stranded Copper Conduc-tors Having Bunch-Stranded Members,for Electrical Con-ductorsB173 Specification for Rope-Lay-Stranded Copper Conduc-tors Having Concentric-Stranded Members,for ElectricalConductorsB174 Specification for Bunch-Stranded Copper Conductorsfor Electrical ConductorsB263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB354 Terminology Relating to Uninsulated Metallic Electri-cal ConductorsB496 Specification for Compact Round Concentric-Lay-Stranded Copper ConductorsB784 Specification for Modified Concentric-Lay-StrandedCopper Conductors for Use in Insulated Electrical CablesB787/B787M Specification for 19 Wire CombinationUnilay-Stranded Copper Conductors for Subsequent Insu-lationB835 Specification for Compact Round Stranded CopperConductors Using Single Input Wire ConstructionB902 Specification for Compressed Round Stranded CopperConductors,Hard,Medium-Hard,or Soft Using SingleInput Wire Construction2.3 American National Standard:IEEE Standard 100 The Authoritative Dictionary of IEEEStandards Terms32.4 NIST:NBS Handbook 100Copper Wire Tables43.Ordering Information3.1 Orders for material under this specification shall includethe following information:3.1.1 Quantity of each size,3.1.2 Conductor size:circular-mil area(Section 7 and Table1),1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommittee B01.04 onConductors of Copper and Copper Alloys.Current edition approved Oct.1,2016.Published October 2016.Originallyapproved in 1948.Last previous edition approved in 2011 as B226 11.DOI:10.1520/B0226-11R16.2For 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),5301 ShawneeRd.,Alexandria,VA 22312,http:/www.ntis.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.3 Whether coated or uncoated;if coated,a tin coatingonly(Section 11),3.1.4 Specific kind and treatment of core material(Section4),3.1.5 Details of special-purpose lays,if required(see 6.1and 6.2 and Explanatory Note 3),3.1.6 Package size(Section 14),3.1.7 Lagging,if required(see 14.2),3.1.8 Special package marking,if required(Section 14.3),and3.1.9 Place of inspection(Section 13).4.Core4.1 The core may be of any material or materials suitable forthe purpose as agreed upon by the manufacturer and thepurchaser when placing the order.4.2 The size of the core and its surface firmness as a base forthe overlaid wires shall be adequate to prevent the forcing ordropping of any wire out of its layer position(ExplanatoryNote 4).4.3 If a specific kind of fibrous core is required by thepurchaser(such as manila