ASTM B401 - 12

    Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced (ACSR/COMP)

    Active Standard ASTM B401 | Developed by Subcommittee: B01.07

    Book of Standards Volume: 02.03


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    Abstract

    This specification covers compact round concentric-lay stranded conductors made from aluminum 1350-H19 (extra hard) wires and round zinc-coated, aluminum-coated, or aluminum-clad steel core wires usually used in overhead lines. Compact ACSR covered by this specification has five types of steel core wire which are designated by ACSR/GA/COMP, ACSR/GB/COMP, ACSR/GC/COMP, ACSR/AZ/COMP, ACSR/AW/COMP. Electric-butt welds, electric-butt, cold-upset welds, or cold-pressure welds in the individual round-drawn or shaped aluminum wires shall be made during the stranding process. The preferred lay of the aluminum wires of aluminum conductors, steel-reinforced, having a single wire steel core and one layer of aluminum wires shall be 14 times the outside diameter of the conductor but the lay shall be not less than 13 nor more than 16 times that diameter. The diameter of the steel core wire, the number of aluminum wires, the aluminum cross-sectional area, the diameter and weight of the compact round concentric-lay-stranded aluminum conductors, steel-reinforced, shall conform to the construction requirements. The rated strength of a completed conductor shall be taken as the aggregate strength of the aluminum and steel components, and shall be calculated according to the prescribed computation. The mass and electrical resistance of a unit length of stranded conductor shall be a function of the length of lay. Tests for mechanical and electrical properties of aluminum wires composing the conductors shall be made before stranding.

    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 compact round concentric-lay-stranded conductors made from aluminum 1350-H19 (extra hard) wires and round zinc-coated, aluminum-coated, or aluminum-clad steel core wires usually used in overhead lines. These conductors shall be constructed with one steel core wire surrounded by one or more layers of helically-laid compacted or otherwise shaped aluminum wires (Explanatory Note 1 and Note 2).

    1.2  Compact ACSR covered by this specification has five types of steel core wire which are designated by abbreviations as follows (Explanatory Note 2 and Note 7).

    1.2.1 ACSR/GA2/COMP—Compact ACSR using Class A zinc-coated steel wire,

    1.2.2 ACSR/GC2/COMP—Compact ACSR using Class C zinc-coated steel wire,

    1.2.3 ACSR/AW2/COMP—Compact ACSR using aluminum-clad steel wire, AW2 (Normal Strength).

    1.2.4 ACSR/AW3/COMP—Compact ACSR using aluminum-clad steel wire, AW3 (High Strength).

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

    Note 1Prior to 1975, aluminum 1350 was designated as EC aluminum.
    Note 2The aluminum and temper designations conform to ANSI H35.1. Aluminum 1350 corresponds to Unified Numbering System A91350 in accordance with Practice E527.


    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

    B193 Test Method for Resistivity of Electrical Conductor Materials

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

    B232/B232M Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR)

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

    B341/B341M Specification for Aluminum-Coated (Aluminized) Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AZ)

    B354 Terminology Relating to Uninsulated Metallic Electrical Conductors

    B498/B498M Specification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors

    B502 Specification for Aluminum-Clad Steel Core Wire for Use in Overhead Electrical Aluminum Conductors

    B802M Specification for Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR)[Metric](Discontinued 1998-Replaced by B 802/B802M)

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

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    Other Documents

    NBS Handbook 100--Copper Wire Tables of the National Bureau of Standards Available from National Technical Information Service (NTIS), U.S. Department of Commerce, 5285 Port Royal Rd., Springfield, VA 22161.


    ICS Code

    ICS Number Code 29.060.20 (Cables)

    UNSPSC Code

    UNSPSC Code 26121500(Electrical wire)


    Referencing This Standard

    DOI: 10.1520/B0401-12

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM B401-12, Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced (ACSR/COMP), ASTM International, West Conshohocken, PA, 2012, www.astm.org

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