Parameter
- Physical Properties
| Physical properties | |||||||||
| Power cores | |||||||||
| Conductor sizes (mm2) | 25 | 35 | 50 | 70 | 95 | 120 | 150 | 185 | 240 |
| Maximum wire diameter (mm) | 0.41 | 0.41 | 0.41 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 |
| Approximate conductor diameter (mm) | 6.8 | 8.5 | 10.3 | 11.9 | 13.5 | 15.5 | 17.3 | 20.2 | 22.9 |
| Maximum screen wire diameter (mm) | 0.31 | 0.31 | 0.31 | 0.31 | 0.31 | 0.31 | 0.31 | 0.31 | 0.31 |
| Braided screen filling factor (%) | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| Approximate summarized screen cross-section for power cores - weighing method (mm2) |
28 | 29 | 32 | 35 | 39 | 41 | 44 | 47 | 50 |
| Pilot cores | |||||||||
| Conductor sizes (mm2) | 10 | 10 | 10 | 16 | 16 | 16 | 25 | 25 | 25 |
| Maximum wire diameter (mm) | 0.41 | 0.41 | 0.41 | 0.41 | 0.41 | 0.41 | 0.41 | 0.41 | 0.41 |
| Approximate conductor diameter (mm) | 4.2 | 4.2 | 4.2 | 5.3 | 5.3 | 5.3 | 6.8 | 6.8 | 6.8 |
| ECC size (if applicable) (mm2) | 16 | 25 | 25 | 35 | 50 | 70 | 95 | 95 | 120 |
| ECC maximum wire diameter (if applicable) (mm) | 0.41 | 0.41 | 0.41 | 0.41 | 0.41 | 0.51 | 0.51 | 0.51 | 0.51 |
| Lay ratio (maximum) (x PCD) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Approxiamte cable diameter * (mm) | 50.1 | 51.7 | 55.3 | 59.8 | 64.6 | 68.8 | 73.1 | 77.8 | 83.1 |
| Cable mass (approximate) | |||||||||
| Type 66 (kg/m) | 3.8 | 4.2 | 5.1 | 6.2 | 7.4 | 8.7 | 10.2 | 11.7 | 14.1 |
| Type 66 ECC (kg/m) | 3.9 | 4.4 | 5.5 | 6.4 | 7.6 | 8.9 | 10.5 | 11.9 | 14.5 |
| Minimum bending radius (mm) | 430 | 450 | 480 | 520 | 550 | 590 | 650 | 670 | 740 |
| Maximum recommended tension (kN) | 1.1 | 1.6 | 2.3 | 3.2 | 4.3 | 5.4 | 6.8 | 8.3 | 10.8 |
| * Tolerance - +/- 5 of approximate value | |||||||||
Electrical Properties
| Electrical properties | |||||||||
| Power cores | |||||||||
| Maximum cond. DC resistance at 200C (Ω/km) | 0.795 | 0.565 | 0.393 | 0.277 | 0.210 | 0.164 | 0.132 | 0.108 | 0.0817 |
| Maximum cond. DC resistance at 900C (Ω/km) | 1.05 | 0.749 | 0.521 | 0.368 | 0.279 | 0.218 | 0.176 | 0.145 | 0.110 |
| Reactance (Ω/km) | 0.124 | 0.116 | 0.109 | 0.105 | 0.101 | 0.096 | 0.092 | 0.091 | 0.087 |
| Impedance (Z) at 900C (Ω/km) | 1.06 | 0.758 | 0.532 | 0.383 | 0.297 | 0.238 | 0.199 | 0.171 | 0.140 |
| Minimum combined screen resistance at 230C (Ω/km) | 1.6 | 1.2 | 0.8 | 0.7 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| Minimum combined screen & ECC resistance (Ω/km) | 0.7 | 0.5 | 0.5 | 0.4 | 0.3 | 0.23 | 0.18 | 0.18 | 0.15 |
| Sustained current rating at 300C ambient | |||||||||
| Laid out straight (A) | 105 | 130 | 160 | 195 | 230 | 260 | 300 | 340 | 400 |
| Short circuit rating | |||||||||
| Symmetrical fault current (kA for 1 sec) | 3.1 | 4.3 | 6.1 | 8.5 | 11.6 | 14.6 | 18.3 | 23 | 29 |
| Earth fault current - screens (kA for 1 sec) | 1.6 | 2.1 | 3.1 | 3.5 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 |
| Earth fault current - ECC + screens (kA for 1 sec) | 3.6 | 5.0 | 5.0 | 7.5 | 9.0 | 11.5 | 14.0 | 14.0 | 17.0 |