Nominal Area Stranding and wire diameter Actual Area Overall diameter Approx. mass Calculated breaking load Max. d.c. resistance @20°C
mm2 mm mm2 mm kg/km kN Ohm/km
25 7/2.34 30.1 7.02 82 8.44 1.094
30 7/2.54 35.47 7.62 97 9.94 0.9281
40 7/2.95 47.84 8.85 131 13.4 0.688
50 7/3.30 59.87 9.9 164 16.8 0.5498
100 7/4.65 118.9 13.95 325 33.3 0.2769
150 19/3.48 180.7 17.4 497 50.65 0.183
175 19/3.76 211 18.8 580 59.1 0.1568
300 37/3.53 362.1 24.71 997 101.5 0.09155