|
|
|
|
|
Amps |
| AWG |
Diameter(inch) |
kcmil |
Lbs/kft |
Ohms/kft |
Copper |
Alum |
| 14 |
0.064 |
4.106 |
12.43 |
3.072 |
20 |
|
| 12 |
0.081 |
6.529 |
19.77 |
1.932 |
25 |
20 |
| 10 |
0.102 |
10.383 |
31.43 |
1.215 |
35 |
30 |
| 8 |
0.128 |
16.509 |
49.98 |
0.764 |
50 |
40 |
| 6 |
0.162 |
26.251 |
79.46 |
0.481 |
65 |
50 |
| 4 |
0.204 |
41.741 |
126.35 |
0.302 |
85 |
65 |
| 2 |
0.258 |
66.371 |
200.91 |
0.190 |
115 |
90 |
| 1 |
0.289 |
83.692 |
253.34 |
0.151 |
130 |
100 |
| 1/0 |
0.325 |
105.534 |
319.46 |
0.120 |
150 |
120 |
| 2/0 |
0.365 |
133.076 |
402.83 |
0.095 |
175 |
135 |
| 3/0 |
0.410 |
167.806 |
507.96 |
0.075 |
200 |
155 |
| 4/0 |
0.460 |
211.600 |
640.53 |
0.060 |
230 |
180 |
|
|
250 |
|
|
255 |
205 |
|
|
300 |
|
|
285 |
230 |
|
|
350 |
|
|
310 |
250 |
|
|
400 |
|
|
335 |
270 |
|
|
500 |
|
|
380 |
310 |
Amps are for conductors rated to 90C (194F).
Not more than three current carrying conductors per raceway/conduit/trench.
Assuming 30C (86F) ambient temperature.
Derate x0.96 for 31-35C (87-95F) ambient temperature
Derate x0.91 for 36-40C (96-104F) ambient temperature
Derate x0.87 for 41-45C (105-113F) ambient temperature
Derate x0.92 for 46-50C (114-122F) ambient temperature