ASTM B978 / B978M - 14

    Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Composite Reinforced (ACCR)

    Active Standard ASTM B978 / B978M | Developed by Subcommittee: B01.07

    Book of Standards Volume: 02.03


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    Abstract

    This specification applies to concentric-lay-stranded conductors made from round aluminum-zirconium alloy wires and an aluminum matrix composite (AMC) core wire(s) for use as overhead electrical conductors. It covers ordering information, requirements for wires, joints and lay, construction requirements, rated strength of conductor, density, mass per unit length and electrical resistance, and cross-sectional area. The standard also addresses workmanship, finish, and appearance, together with mechanical as well as electrical and dimensional tests, tests and retests, inspection, and packaging and package marking.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers concentric-lay-stranded conductors made from round aluminum-zirconium alloy wires and an aluminum matrix composite (AMC) core wire(s) for use as overhead electrical conductors (Explanatory Note 1 and Explanatory Note 2).

    1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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

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

    B354 Terminology Relating to Uninsulated Metallic Electrical Conductors

    B682 Specification for Metric Sizes of Electrical Conductors

    B941 Specification for Heat Resistant Aluminum-Zirconium Alloy Wire for Electrical Purposes

    B976 Specification for Fiber Reinforced Aluminum Matrix Composite (AMC) Core Wire for Aluminum Conductors, Composite Reinforced (ACCR)

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

    Aluminum Association Documents

    Aluminum Association A Method of Stress-Strain Testing of Aluminum Conductors and ACSR and a Test Method for Determining the Long Time Creep of Aluminum Conductors in Overhead Lines

    Publication 50 Code Words for Overhead Aluminum Electrical Conductors

    NIST Document

    NBS Handbook 100 --Copper Wire Tables


    ICS Code

    ICS Number Code 29.060.10 (Wires)

    UNSPSC Code

    UNSPSC Code 11172000(Aluminum based alloys); 60124403(Aluminum wire)


    DOI: 10.1520/B0978_B0978M

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