Conductor | Thicknessof insulation mm | Meanoveralldiameter(upper limit) mm | Approx.weight kg | Maximuminsulationresistance(at 70ºC) MΩ - km | Nominal crosssectionalarea mm2 | No. anddiameterof wires No./mm | 1.5 | 1/1.38 | 0.7 | 3.2 | 21 | 0.011 | 2.5 | 1/1.78 | 0.8 | 3.9 | 32 | 0.010 | 4 | 7/0.85 | 0.8 | 4.6 | 51 | 0.0082 | 6 | 7/1.04 | 0.8 | 5.2 | 72 | 0.0070 | 10 | 7/1.35 | 1.0 | 6.7 | 120 | 0.0067 | 16 | 7/1.7 | 1.0 | 7.8 | 180 | 0.0056 | 25 | 7/2.14 | 1.2 | 9.7 | 275 | 0.0053 | 35 | 7/2.52 | 1.2 | 10.9 | 375 | 0.0046 | 50 | 19/1.78 | 1.4 | 12.8 | 510 | 0.0046 | 70 | 19/2.14 | 1.4 | 14.6 | 715 | 0.0040 | 95 | 19/2.52 | 1.6 | 17.1 | 990 | 0.0039 | 120 | 37/2.03 | 1.6 | 18.8 | 1,230 | 0.0035 | 150 | 37/2.25 | 1.8 | 20.9 | 1,510 | 0.0035 | 185 | 37/2.52 | 2.0 | 23.3 | 1,900 | 0.0035 | 240 | 61/2.25 | 2.2 | 26.6 | 2,480 | 0.0034 | 300 | 61/2.52 | 2.4 | 29.6 | 3,100 | 0.0033 | 400 | 61/2.85 | 2.6 | 33.2 | 3,940 | 0.0031 | 500 | 61/3.2 | 2.8 | 36.9 | 4,920 | 0.0030 | 630 | 127/2.52 | 2.8 | 41.1 | 6,280 | 0.0027 |
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