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Conductor Construction & D.C Conductor Resistance

Conductor				Maximum D.C resistance of condctor at 20'c
Nominal Cross Sectional Area (mm)	Maximum Number of wires in the conductor		Approx. Outer Diameter (mm)	Copper conductor (Class2)	Aluminium conductor (Class2)
	Cu	Al
1.5	7	-	1.59	12.1	-
2.5	7	-	2.01	7.14	-
4	7	7	2.55	4.61	7.41
6	7	7	3.12	3.08	4.16
10	7	7	4.05	1.83	3.08
16	6	6	4.7	1.15	1.91
25	6	6	5.9	0.727	1.2
35	6	6	7.0	0.524	0.868
50	6	6	8.2	0.387	0.641
70	12	12	9.9	0.268	0.443
95	15	15	11.5	0.193	0.320
120	18	15	13.0	0.153	0.253
150	18	15	14.5	0.124	0.203
185	30	30	16.1	0.0991	0.164
240	34	30	18.6	0.0754	0.125
300	34	30	20.6	0.0601	0.100
400	53	53	23.8	0.0470	0.0778
500	53	53	26.9	0.0366	0.0605
630	53	53	30.4	0.0283	0.0469
800	-	-	34.0	0.0221	0.0367
1,000	-	-	38.0	0.0176	0.0291
10 sqmm and less:	Circular non-compacted.
16 sqmm to 630 sqmm:	Circular compacted.
800 sqmm and above:	Circular segment compacted.