ASTM B226-95

    Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors

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    1. Scope

    1.1 This specification covers cored, annular, concentric-lay-stranded conductors made from round soft copper wires, either uncoated or coated with tin, lead, or lead alloy for use as electrical conductors (Explanatory Notes 1 and 2).

    1.2 The constructions prescribed herein are suitable for bare conductors, or for conductors to be covered with weather-resistant (weather-proof) material, or for conductors to be insulated with rubber, varnished cloth, or impregnated paper, except types such as "oil-filled" or "gas-filled" (Explanatory Note 3).

    1.3 Cored, annular conductor constructions not included in this specification shall be specifically agreed upon between the manufacturer and the purchaser when placing the order.

    1.4 These constructions are not recommended for use as electric furnace leads where great flexibility is required and special conductor designs are indicated in consideration of the particular service requirements.

    1.5 The SI values for density are regarded as the standard. For all other properties the inch-pound values are to be regarded as standard and the SI units may be approximate.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    B3 Specification for Soft or Annealed Copper Wire

    B8 Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft

    B33 Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes

    B172 Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors

    B173 Specification for Rope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members, for Electrical Conductors

    B174 Specification for Bunch-Stranded Copper Conductors for Electrical Conductors

    B263 Test Method for Determination of Cross-Sectional Area of Stranded Conductors

    B354 Terminology Relating to Uninsulated Metallic Electrical Conductors

    B496 Specification for Compact Round Concentric-Lay-Stranded Copper Conductors

    B784 Specification for Modified Concentric-Lay-Stranded Copper Conductors for Use in Insulated Electrical Cables

    B787/B787M Specification for 19 Wire Combination Unilay-Stranded Copper Conductors for Subsequent Insulation

    B835 Specification for Compact Round Stranded Copper Conductors Using Single Input Wire Construction

    B902 Specification for Compressed Round Stranded Copper Conductors, Hard, Medium-Hard, or Soft Using Single Input Wire Construction

    American National Standard

    IEEEStandard100 The Authoritative Dictionary of IEEE Standards Terms Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.


    ICS Code

    ICS Number Code 29.060.20 (Cables)

    UNSPSC Code

    UNSPSC Code 26121517(Copper wire)


    DOI: 10.1520/B0226-95

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