General Order 95
Appendix C
Conductor Sags
Table 25: Stringing Sags, In Inches, for Communication
Conductors In Grade F Construction
|
Span Length, Feet |
Light Loading |
Heavy Loading * |
|||||||||
|
Temperature, Degrees Fahrenheit |
Temperature, Degrees Fahrenheit |
||||||||||
|
100 |
80 |
60 |
40 |
20 |
100 |
80 |
60 |
40 |
20 |
0 |
|
|
100 |
7 |
6 |
4.5 |
4 |
3.5 |
9.5 |
7.5 |
6 |
5 |
4 |
3.5 |
|
120 |
10.5 |
8.5 |
7 |
5.5 |
5 |
13.5 |
10.5 |
8.5 |
7 |
5.5 |
4.5 |
|
140 |
14 |
11 |
9 |
7.5 |
6.5 |
18.5 |
14.5 |
11.5 |
9.5 |
7.5 |
6.5 |
|
160 |
18 |
15 |
12 |
10 |
8.5 |
21 |
18 |
15 |
12.5 |
10.5 |
9 |
|
180 |
22 |
18.5 |
15.5 |
13 |
11 |
26.5 |
23 |
19 |
15.5 |
13 |
11 |
|
200 |
27 |
23 |
19 |
16.5 |
13.5 |
- |
- |
- |
- |
- |
- |
|
220 |
32.5 |
27.5 |
23 |
20 |
16.5 |
- |
- |
- |
- |
- |
- |
|
240 |
36 |
31.5 |
27 |
23.5 |
20.5 |
- |
- |
- |
- |
- |
- |
|
260 |
42 |
37 |
32 |
27.5 |
24 |
- |
- |
- |
- |
- |
- |
|
280 |
49 |
42.5 |
37 |
32 |
27.5 |
- |
- |
- |
- |
- |
- |
|
300 |
56 |
49 |
42.5 |
36.5 |
32 |
- |
- |
- |
- |
- |
- |
* In heavy loading districts, sags of the given values
are inadequate for the following conductors and must be increased to meet
the safety factor requirements:
|
Hard–drawn copper,, No. 12 AWG in spans greater than 130 feet. |
Galvanized iron BB, No. 10 BWG in spans greater than 170 feet. |
|
Galvanized iron, EBB, No. 9 BWG in spans greater than 170 feet. |
Galvanized iron, BB, No. 12 BWG in spans greater than 115 feet. |
|
Galvanized iron, EBB, No 10 BWG in spans greater than 140 feet. |
Galvanized iron, BB, No. 14 BWG in spans of any length. |
|
Galvanized iron, EBB, No. 12 and No 14 BWG in spans of any length. |
|