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ASTM B47-95a(2012)

Historical Reaffirmation

Standard Specification for Copper Trolley Wire

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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.


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.


SDO ASTM: ASTM International
Document Number B47
Publication Date Oct. 15, 2012
Language en - English
Page Count 5
Revision Level 95a(2012)
Supercedes
Committee B01.04
Publish Date Document Id Type View
Jan. 1, 2001 B0047-95A Revision
Oct. 1, 2024 B0047-95AR24 Reaffirmation
April 1, 2017 B0047-95AR17 Reaffirmation
Oct. 15, 2012 B0047-95AR12 Reaffirmation
March 15, 2007 B0047-95AR07 Reaffirmation
Jan. 1, 2001 B0047-95AR01 Reaffirmation