ASTM WK67582

    Revision of B502 / B502M - 10(2017) Standard Specification for Aluminum-Clad Steel Core Wire for Use in Overhead Electrical Aluminum Conductors

    (What is a Work Item?)

    Active Standard: B502 / B502M - 19

    Developed by Subcommittee: B01.06 | Committee B01 | Contact Staff Manager



    aluminum-clad steel core wire for aluminum conductors; aluminum-clad steel reinforced; aluminum-clad steel supported; ACSR; ACSR/TW; ACSS; ACSS/TW; clad steel core wire;;


    Rationale:Currently, the finished conductor RBS calculation and the RBS of the Core wire or Strand are not harmonized. As such, a finished conductor using AW2/AW3 core could be in compliance with the wire standards, but could fail the minimum RBS requirements of the conductor standards. This is particularly true and relevant for ACSS conductors where no rating factor is used for the core strand. As discussed during Oct 2018 B01.06 subcommittee meeting, this standard will be changed to incude a minimum breaking strength requirement based on the minimum tensile and nominal wire diameter for ACSS conductors.

    Citing ASTM Standards
    Back to Top
    Work Item Status

    Date Initiated:

    Technical Contact:
    Apollo Arce


    B01 (19-02)

    Ballot Item Approved as B502/B502M-2019 and Pending Publication