COPPER XLPE, UNARMOURED POWER CABLES 4 and 3 Core Cu. Cable Data Sheet in Air Size Current in air AC Resistance at 90deg Reactance 3C x 2.5 24 9.48 0.0985 3C x 4 36 5.9 0.0927 3C x 6 47 3.94 0.0884 3C x 10 39 3.7 0.1 3C x 16 50 2.29 0.097 3C x 25 63 1.44 0.097 3C x 35 77 1.04 0.097 3C x 50 95 0.77 0.094 3C x 70 115 0.53 0.09 3C x 95 140 0.38 0.09 3C x 120 155 0.3 0.087 3C x 150 175 0.25 0.087 3C x 185 200 0.2 0.087 3C x 240 235 0.15 0.087 3C x 300 280 0.12 0.086 3C x 400 290 0.09 0.086