CONDUCTOR resistance

Nominal Cross Sectional Area (Sq.mm)
ALUMINUM
COPPER
Max. D.C. Resistance at 20°C
Ohm/Km
Approx. A.C. Resistance of Operating Temp 700°C
Ohm/Km
Max. D.C. Resistance at 20°C Ohm/Km
Approx. A.C. Resistance of Operating Temp 700°C Ohm/Km
1.5
19.7
20.5
12.1
14.5
2.5
11.9
12.8
7.41
8.87
4.0
7.41
8.90
4.61
5.52
6.0
4.61
5.54
3.08
3.69
10.0
3.08
3.70
1.83
2.19
16
1.91
2.30
1.15
1.38
25
1.20
1.44
0.727
0.870
35
0.868
1.04
0.524
0.627
50
0.641
0.770
0.387
0.463
70
0.443
0.532
0.268
0.321
95
0.320
0.385
0.193
0.231
120
0.253
0.305
0.153
0.184
150
0.206
0.249
0.124
0.149
185
0.164
0.198
0.0991
0.120
240
0.125
0.152
0.0754
0.0912
300
0.100
0.123
0.0601
0.0739
400
0.0778
0.0975
0.0470
0.0592
500
0.0605
0.0767
0.0366
0.0468
630
0.0469
0.0614
0.0283
0.0379