ASTM B47 - 95a(2012)

    Standard Specification for Copper Trolley Wire

    Active Standard ASTM B47 | Developed by Subcommittee: B01.04

    Book of Standards Volume: 02.03


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    Abstract

    This specification covers round and grooved hard-drawn copper- and silver-bearing copper trolley wires. Copper materials shall be of such quality and purity that the finished product shall have the properties and characteristics prescribed herein. All wires shall conform to the following physical properties: tensile strength, elongation, dimensions, density, and electrical resistivity. Three twist tests shall be made on round wires between the holders of the testing machine for the purpose of determining developing defects that may be prejudicial to the life of the trolley wire. Wires that do not withstand at least nine twists without breaking shall not be considered satisfactory. The twist test shall be omitted for grooved wires. All wires shall be of uniform size, shape, and quality throughout, and shall be free from all scale, flaws, splits, and scratches not consistent with the best commercial practice.

    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.

    Significance and Use

    1. Scope

    1.1 This specification covers round and grooved hard-drawn copper and silver-bearing copper trolley wire.

    1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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

    B49 Specification for Copper Rod Drawing Stock for Electrical Purposes

    B193 Test Method for Resistivity of Electrical Conductor Materials


    ICS Code

    ICS Number Code 29.280 (Electric traction equipment)

    UNSPSC Code

    UNSPSC Code 26121510(Trolley wire)


    DOI: 10.1520/B0047-95AR12

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