ASTM B258-02

    Historical Standard: ASTM B258-02 Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors

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    ASTM B258

    1. Scope

    1.1 This specification prescribes standard nominal diameters and cross-sectional areas of American Wire Gage (AWG) sizes of solid round wires, used as electrical conductors, and gives equations and rules for the calculation of standard nominal mass and lengths, resistances, and breaking strengths of such wires (Explanatory Note 1).

    1.2 The values stated in inch-pound or SI units are to be regarded separately as standard. Each system shall be used independently of the other. Combining values of the two systems may result in nonconformance with the specification. For conductor sizes designated by AWG or kcmil sizes, the requirements in SI units have been numerically converted from the corresponding values stated or derived, in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.

    1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.


    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

    A111 Specification for Zinc-Coated (Galvanized) Iron Telephone and Telegraph Line Wire

    A326 Specification for Zinc-Coated (Galvanized) High Tensile Steel Telephone and Telegraph Line Wire

    B1 Specification for Hard-Drawn Copper Wire

    B2 Specification for Medium-Hard-Drawn Copper Wire

    B3 Specification for Soft or Annealed Copper Wire

    B9 Specification for Bronze Trolley Wire

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

    B47 Specification for Copper Trolley Wire

    B105 Specification for Hard-Drawn Copper Alloy Wires for Electric Conductors

    B189 Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes

    B193 Test Method for Resistivity of Electrical Conductor Materials

    B227 Specification for Hard-Drawn Copper-Clad Steel Wire

    B230/B230M Specification for Aluminum 1350-H19 Wire for Electrical Purposes

    B314 Specification for Aluminum 1350 Wire for Communication Cable

    B396 Specification for Aluminum-Alloy 5005-H19 Wire for Electrical Purposes

    B398/B398M Specification for Aluminum-Alloy 6201-T81 Wire for Electrical Purposes

    B415 Specification for Hard-Drawn Aluminum-Clad Steel Wire

    B609/B609M Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes

    B800 Specification for 8000 Series Aluminum Alloy Wire for Electrical Purposes--Annealed and Intermediate Tempers

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    F205 Test Method for Measuring Diameter of Fine Wire by Weighing


    ICS Code

    ICS Number Code 29.060.10 (Wires)

    UNSPSC Code

    UNSPSC Code 26121500(Electrical wire)


    DOI: 10.1520/B0258-02

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