Conductor Resistance

Electrical Resistance of Copper Conductors(mm2)

Nominal Section (mm2)	Min.No.of Wires Class 2	Max.Wire Dia. Class 5(mm)	Max.Wire Dia. Class 6(mm)	Max.Conductor Resistance (Ohm/km at 20℃) Class 2 Class 5 and Class 6
				Copper	Copper
0.5 0.75 1.0 1.5 2.5 4 6 10 16 25 35 50 70 95 120 150	7 7 7 7 7 7 7 7 7 7 7 19 19 19 37 37	0.21 0.21 0.21 0.26 0.26 0.31 0.31 0.41 0.41 0.41 0.41 0.41 0.51 0.51 0.51 0.51	0.16 0.16 0.16 0.16 0.16 0.16 0.21 0.21 0.21 0.21 0.21 0.31 0.31 0.31 0.31 0.31	36 24.5 18.1 12.1 7.41 4.61 3.08 1.83 1.15 0.73 0.52 0.39 0.27 0.19 0.15 0.12	39 26 19.5 13.3 7.98 4.95 3.3 1.91 1.21 0.78 0.55 0.38 0.27 0.20 0.16 0.13

Electrical Resistance of Copper Conductors(AWG)

Section (AWG)	Section (mm2)	Conductor		Max. Conductor Resistance (Ohm at 20℃)
Section (AWG)	Section (mm2)	No.of Wires	Single Wire (mm) Dia.	Copper
0 0 1 1 2 2 2 4 4 6 6 8 10 10 10 12 12 12 12 14 14 14 16 16 16 18 18 18 18 20 20 20 20 22 22 22 24 24 24 26 26 26	52.95 53.116 41.397 42.112 33.696 33.201 34.416 21.231 21.625 13.611 13.764 8.604 5.317 4.74 5.26 3.293 2.98 3.08 3.31 2.078 1.854 2.08 1.317 1.229 1.31 0.963 0.811 0.897 0.827 0.615 0.507 0.562 0.519 0.382 0.355 0.324 0.241 0.227 0.205 0.155 0.141 0.128	1045 259 817 259 665 259 133 418 133 266 133 133 105 37 1 65 37 19 1 41 19 1 26 19 1 19 16 7 1 19 10 7 1 19 7 1 19 7 1 19 7 1	0.254 0.510 0.254 0.455 0.254 0.404 0.574 0.255 0.455 0.254 0.363 0.287 0.254 0.404 2.588 0.254 0.321 0.455 2.052 0.254 0.361 1.628 0.254 0.287 1.291 0.254 0.254 0.404 1.023 0.203 0.254 0.320 0.813 0.160 0.254 0.643 0.127 0.203 0.511 0.102 0.160 0.404	0.35 0.38 0.40 0.45 0.5 0.6 0.5 0.8 0.9 1.5 1.5 2.0 3.2 3.6 3.4 5.7 6.8 4.8 5.4 8.3 8.9 8.6 13.1 14.1 13.7 17.9 21.3 19.2 21.8 28.3 33.9 33.8 34.6 45.1 48.4 55.3 69.2 76.4 89.4 113.0 122.0 138.8