China 10 12 15 16 Pair Outdoor Underground Telephone Cable Supplier, Find details about China Telephone Cable, Copper Cable from 10 12 15 16 Pair Outdoor Underground Telephone Cable Supplier
| Class 2 stranded conductors for single-core and multi-core cables | |||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Nominal crosssectional area | Minimum number of wires in the conductor | Maximum resistance of conductor at 20ºC | |||||||
| Circular | Circular compacted | Shaped | Annealed copper conductor | Aluminium or aluminium alloy conductor | |||||
| Cu | Al | Cu | Al | Cu | Al | Plain wires | Metal-coated wires | ||
| mm2 | Ω/KM | Ω/KM | Ω/KM | ||||||
| 0.5 | 7 | 36 | 36.7 | ||||||
| 0.75 | 7 | 24.5 | 24.8 | ||||||
| 1 | 7 | 18.1 | 18.2 | ||||||
| 1.5 | 7 | 6 | 12.1 | 12.2 | |||||
| 2.5 | 7 | 6 | 7.41 | 7.58 | |||||
| 4 | 7 | 6 | 4.61 | 4.7 | |||||
| 6 | 7 | 6 | 3.08 | 3.11 | |||||
| 10 | 7 | 7 | 6 | 6 | 1.83 | 1.84 | 3.08 | ||
| 16 | 7 | 7 | 6 | 6 | 1.15 | 1.16 | 1.91 | ||
| 25 | 7 | 7 | 6 | 6 | 6 | 6 | 0.727 | 0.734 | 1.2 |
| 35 | 7 | 7 | 6 | 6 | 6 | 6 | 0.524 | 0.529 | 0.868 |
| 50 | 19 | 19 | 6 | 6 | 6 | 6 | 0.387 | 0.391 | 0.641 |
| 70 | 19 | 19 | 12 | 12 | 12 | 12 | 0.268 | 0.27 | 0.443 |
| 95 | 19 | 19 | 15 | 15 | 15 | 15 | 0.193 | 0.195 | 0.32 |
| 120 | 37 | 37 | 18 | 15 | 18 | 15 | 0.153 | 0.154 | 0.253 |
| 150 | 37 | 37 | 18 | 15 | 18 | 15 | 0.124 | 0.126 | 0.206 |
| 185 | 37 | 37 | 30 | 30 | 30 | 30 | 0.0991 | 0.1 | 0.164 |
| 240 | 37 | 37 | 34 | 30 | 34 | 30 | 0.0754 | 0.0762 | 0.125 |
| 300 | 61 | 61 | 34 | 30 | 34 | 30 | 0.0601 | 0.0607 | 0.1 |
| 400 | 61 | 61 | 53 | 53 | 53 | 53 | 0.047 | 0.0475 | 0.0778 |
| 500 | 61 | 61 | 53 | 53 | 53 | 53 | 0.0368 | 0.0369 | 0.0605 |
| 630 | 91 | 91 | 53 | 53 | 53 | 53 | 0.0283 | 0.0286 | 0.0469 |
| 800 | 91 | 91 | 53 | 53 | 0.0221 | 0.0224 | 0.0367 | ||
| 1000 | 91 | 91 | 53 | 53 | 0.0176 | 0.0177 | 0.0291 | ||