APPENDIX H
Resistance of Copper Wire, Ohms per Mile, 25o C (77o F)
Size, cir.mils or AWG
Number of wires
Outside Diameter,
mils
Ohm per mile
STRANDED
1,000,000
750,000
500,000
450,000
400,000
350,000
300,000
61
61
37
37
37
37
37
1.152
0.998
814
772
728
681
630
0.0571
0.0760
0.1130
0.1267
0.1426
0.1626
0.1900
250,000
0000
000
00
0
37
19
19
19
19
575
528
470
418
373
0.2278
0.2690
0.339
0.428
0.538
1
2
3
4
19
7
7
7
332
292
260
232
0.681
0.856
1.083
1.367
0000
000
00
0
460
410
365
325
0.264
0.333
0.420
0.528
1
2
3
4
For more detailed Vol. L.
289
258
229
204
0.665
0.839
1.061
1.335
SOLID
APPENDIX I
Properties of Aluminum Cable Steel-reinforced
(ACSR)
Aluminum Company of America
Cir mils or
AWG
Alum.
Copper
equiv.
No. of
wires
Al
.
Outs
ide
diam
eter
inch
St.
Cross section
Sq. in.
Al.
Total
lb.
per
mile
Total
Ohms per mile of single conductor at
25oC
0 amp
d.c.
200 amp
600 amp
1,590,000
1,431,000
1,272,000
1,192,500
1,113,000
1,000,000
900,000
800,000
750,000
700,000
54
54
54
54
54
19
19
19
19
19
1.545
1.465
1.382
1.338
1.293
1.249
1.124
0.9990
0.93666
0.8741
1.4071
1.2664
1.1256
1.0553
0.9850
10,735
9,662
8,588
8,055
7,517
0.0587
0.0652
0.0734
0.783
0.839
25
cycles
0.0589
0.0654
0.0736
0.0785
0.0841
1,033,500
650,000
54
7
1.246
0.8117
0.9170
7,022
0.0903
0.0906
0.0913
0.0908
0.0922
954,000
874,500
795,000
715,500
600,000
550,000
500,000
450,000
54
54
26
54
7
7
7
7
1.196
1.146
1.108
1.036
0.7493
0.6868
0.6244
0.5620
0.8464
0.7759
0.7261
0.6348
6,481
5,942
5,776
4,860
0.0979
0.107
0.117
0.131
0.0980
0.107
0.117
0.131
0.0985
0.108
0.117
0.133
0.0983
0.107
0.117
0.131
0.0997
0.109
0.117
0.133
636,000
556,500
477,000
397,500
336,400
400,000
350,000
300,000
250,000
0000
54
26
26
26
26
7
7
7
7
7
0.977
0.927
0.858
0.783
0.721
0.4995
0.4371
0.3746
0.3122
0.2642
0.5642
0.5083
0.4357
0.3630
0.3070
4,321
4,044
3,467
2,887
2,445
0.147
0.168
0.196
0.235
0.278
0.147
0.168
0.196
0.235
0.278
0.149
0.168
0.196
0.235
0.278
0.147
0.168
0.196
0.235
0.278
0.149
0.168
0.196
0.235
0.278
266,000
0000
000
00
0
000
00
0
1
2
26
6
6
6
6
7
1
1
1
1
0.633
0.563
0.502
0.447
0.398
0.2095
0.1662
0.1318
0.1045
0.0829
0.2367
0.1939
0.1537
0.1219
0.0967
1,813
1,549
1,227
974
773
0.350
0.441
0.556
0.702
0.885
0.350
0.443
0.557
0.703
0.885
0.350
0.446
0.561
0.707
0.889
0.350
0.447
0.562
0.706
0.887
0.350
0.464
0.579
0.718
0.893
1
2
3
4
3
4
5
6
6
6
6
6
1
1
1
1
0.355
0.316
0.281
0.250
0.0657
0.0521
0.0413
0.0328
0.0767
0.0608
0.0482
0.0383
614
486
386
306
1.12
1.41
1.78
2.24
1.12
1.41
1.78
2.24
1.12
1.41
1.78
2.24
1.12
1.41
1.78
2.24
1.12
1.41
1.78
2.24
SUBMITTED BY: Mel Francis T. Cadavedo
BSEE-V
60
cycles
0.0594
0.0659
0.0742
0.0791
0.0848
25
cycles
0.0592
0.0657
0.0738
0.0787
0.0843
60
cycles
0.0607
0.0671
0.0752
0.0801
0.0857