Original 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, EBB, No. 9 BWG in spans greater than 170 feet.
Galvanized iron, EBB, No 10 BWG in spans greater than 140 feet.
Galvanized iron, EBB, No. 12 and No 14 BWG in spans of any length.
Galvanized iron BB, No. 10 BWG in spans greater than 170 feet.
Galvanized iron, BB, No. 12 BWG in spans greater than 115 feet.
Galvanized iron, BB, No. 14 BWG in spans of any length.