Conductor Resistance

Resistance in plain copper wire conductor

Resistance in a single core copper conductor is indicated in the table below:

Cross Sectional Area (mm2)	Resistance (ohm/km)
0.5	36.0
0.75	24.5
1.0	18.1
1.5	12.1
2.5	7.4
4.0	4.6
6.0	3.1
10	1.8
16	1.2
25	0.73
35	0.52
50	0.39
70	0.27
95	0.19
120	0.15
150	0.12
185	0.099
240	0.075
300	0.60
400	0.047
500	0.037
630	0.028