Standard Historical Last Updated: Dec 31, 2010 Track Document
ASTM A640-97(2002)e1

Standard Specification for Zinc-Coated Steel Strand for Messenger Support of Figure 8 Cable

Standard Specification for Zinc-Coated Steel Strand for Messenger Support of Figure 8 Cable A0640-97R02E01 ASTM|A0640-97R02E01|en-US Standard Specification for Zinc-Coated Steel Strand for Messenger Support of Figure 8 Cable Standard new BOS Vol. 01.06 Committee A05
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Abstract

This specification covers two sizes of extra-high-strength grade of concentric-lay steel wire strand, composed of seven, zinc-coated steel wires, specifically intended for use as the supporting messenger in Figure 8-type communication and electrical cables. Steel wires shall be manufactured by the open-hearth, basic-oxygen, or electric-furnace process. Materials shall adhere to specified mechanical and physical requirements such as breaking strength, elongation, ductility, nominal diameter, and coating weight and adherence. Zinc coatings shall be continuous and of reasonably uniform thickness, and wires shall be free from imperfections not consistent with good commercial practice.

Scope

1.1 This specification covers two sizes of extra-high-strength grade of concentric-lay steel wire strand, composed of seven, zinc-coated steel wires, specifically intended for use as the supporting messenger in Figure 8-type communication and electrical cables.

1.2 The values stated in inch-pound units are to be regarded as the standard.

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Details
Book of Standards Volume: 01.06
Developed by Subcommittee: A05.12
Pages: 3
DOI: 10.1520/A0640-97R02E01
ICS Code: 77.140.65