General Order 64
Appendix C
Conductor Sags
Signal Conductor
Recommended minimum sags for signal conductors are given in the table below:
TABLE 19 Minimum Sags For Signal Conductors |
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Span - Feet |
Sag for No. 8 B.W.G. or No. 12 N.B.S. Copper Wire and No. 8 B.W.G. or No. 12 B.W.G. Galvanized Steel (or B.B.) Wire or Larger |
Sag for No. 14 N.B.S. Copper Wire and No. 14 B.W.G. Galvanized Steel (or B.B.) Wire |
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Temperature – Deg. Fahr. |
Temperature – Deg. Fahr. |
|||||||||
0 |
25 |
60 |
80 |
130 |
0 |
25 |
60 |
80 |
130 |
|
Sag in Inches |
Sag in Inches |
|||||||||
90 |
2 ½ |
3 |
4 |
4 ½ |
10 ½ |
4 |
4 ½ |
5 ½ |
6 ½ |
12 |
100 |
3 |
3 ½ |
4 ½ |
5 ½ |
11 ½ |
5 |
5 ½ |
6 ½ |
7 ½ |
13 ½ |
110 |
3 ½ |
4 |
5 |
6 ½ |
13 |
5 ½ |
6 |
7 ½ |
8 ½ |
15 |
120 |
4 |
4 ½ |
6 |
7 ½ |
14 ½ |
6 |
6 ½ |
8 |
9 ½ |
16 ½ |
130 |
4 ½ |
5 |
7 |
8 ½ |
16 |
6 ½ |
7 |
9 |
10 ½ |
18 |
150 |
6 |
7 |
9 ½ |
11 ½ |
20 |
8 |
9 |
11 ½ |
13 |
21 ½ |
175 |
8 |
9 ½ |
12 ½ |
14 ½ |
24 ½ |
10 ½ |
11 ½ |
14 ½ |
17 |
26 ½ |
200 |
10 ½ |
11 ½ |
16 |
19 |
29 ½ |
12 ½ |
13 ½ |
18 |
21 |
31 |
250 |
18 ½ |
20 ½ |
27 |
31 ½ |
45 ½ |
20 |
22 ½ |
29 |
33 ½ |
46 |
300 |
29 ½ |
32 |
42 ½ |
48 ½ |
64 ½ |
31 ½ |
34 ½ |
44 |
50 ½ |
66 |