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.
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.
| SDO | ASTM: ASTM International |
| Document Number | A640 |
| Publication Date | April 10, 1997 |
| Language | en - English |
| Page Count | 3 |
| Revision Level | 97(2002) |
| Supercedes | |
| Committee | A05.12 |