Overhead Copper wire
This wire is used on relatively short spans, particularly low & medium voltage
distribution line, in more severe weather conditions.
Standard: BS 7884
| Nominal Area (mm²) | Construction Conductor (No-mm) | Overall Diameter (mm) | Approx. Conductor Weight (mm) | Conductor Resistance At 20°C (Ω/km) | Minimum Breaking (kN) |
|---|---|---|---|---|---|
| 10 | 7 x 1.35 | 4.05 | 90 | 1.806 | 4.1 |
| 16 | 7 x 1.70 | 5.1 | 143 | 1.1385 | 6.5 |
| 25 | 7 x 2.10 | 6.3 | 219 | 0.7461 | 9.9 |
| 35 | 7 x 2.50 | 7.5 | 310 | 0.5264 | 14 |
| 50 | 7 x 3.0 | 9 | 447 | 0.3656 | 20.2 |
| 50 | 19 x 1.78 | 8.9 | 438 | 0.3759 | 19.8 |
| 70 | 19 x 2.10 | 10.5 | 597 | 0.2762 | 26.9 |
| 95 | 20 x 2.50 | 12.5 | 846 | 0.1949 | 38.1 |
| 120 | 20 x 2.80 | 14 | 1061 | 0.1554 | 47.8 |
| 150 | 37 x 2.25 | 15.7 | 1337 | 0.1238 | 60.1 |
| 185 | 37 x 2.50 | 17.5 | 1651 | 0.1003 | 74.2 |
| 240 | 61 x 2.25 | 20.2 | 2208 | 0.0753 | 99.1 |