General Order 64
Appendix B
Mechanical And Loading Data For Conductors.
Table 18
Mechanical Characteristics Of Galvanized Steel Strands
Diameter Inches |
No. of Wires |
Diameter of Single Wire – In. |
Area of Strand Sq. In. |
Weight per Ft. Lb. |
Ultimate Tension |
Allowable Tension |
||||
Siemens – Martin Lb. |
High Strength Lb. |
Extra High Strength Lb. |
Siemens – Martin Lb. |
High Strength Lb. |
Extra High Strength Lb. |
|||||
5/8" |
7 |
0.220 |
0.2660 |
0.800 |
19,000 |
25,000 |
42,500 |
9,500 |
12,500 |
21,250 |
9/16" |
7 |
.203 |
.2268 |
.650 |
14,500 |
21,000 |
34,500 |
7,250 |
10,550 |
17,250 |
1/2" |
7 |
.165 |
.1500 |
.510 |
11,000 |
18,000 |
27,000 |
5,500 |
9,000 |
13,500 |
7/16" |
7 |
.148 |
.1204 |
.415 |
9,000 |
15,000 |
22,500 |
4,500 |
7,500 |
11,250 |
3/8" |
7 |
.120 |
.0792 |
.295 |
6,800 |
11,500 |
17,250 |
3,400 |
5,750 |
8,675 |
5/16" |
7 |
.109 |
.0654 |
.210 |
4,860 |
8,100 |
12,100 |
2,430 |
4,050 |
6,050 |
9/32" |
7 |
.095 |
.0496 |
.160 |
4,380 |
7,300 |
10,900 |
2,190 |
3,650 |
5,450 |
1/4" |
7 |
.083 |
.0379 |
.125 |
3,060 |
5,100 |
7,600 |
1,530 |
2,550 |
3,800 |
3/16" |
7 |
.065 |
.0232 |
.075 |
2,000 |
3,300 |
4,900 |
1,000 |
1,650 |
2,450 |
1/8" |
7 |
.042 |
.0097 |
.032 |
900 |
1,500 |
2,250 |
450 |
750 |
1,125 |