# 直径 截面积 公斤 /千米 欧姆 /千米 mm.G. AWG SWG mm sq.mm2 kg/km Ohms Per Kilomtr mil sq.in cir.mil 8 8.000 50.270 446.9 315.00 0.0779300 99,225 1 1 7.620 45.600 405.4 300.00 0.0706900 90,000 7.341 42.220 343.1 289.00 0.0656000 83,521 7.214 40.870 363.3 284.00 0.0633500 80,656 2 7.010 38.600 376.2 276.00 0.0598300 76,176 7 7.000 38.480 342.1 276.00 0.0598300 76,176 6.579 33.990 302.2 259.00 0.0526900 67,081 2