Medium voltage cables for distribution networks. They are suitable for laying indoor, tunnel, cables trench and underground, it is able to bear external mechanical forces, but unable to bear heavy pulling force, it widely used in transformer stations, electric power plants and industrial plants.
IEC 60228 Conductors of Insulated Cables.
IEC 60502-2 Power Cables with Extruded Insulation and Their Accessories for Rated Voltages from 1kV (Um=1.2kV) up to 30kV (Um=36kV)-Part 2: Cables for Rated Voltages from 6kV (Um=7.2kV) up to 30kV (Um=36kV).
| No.of Cores and Nominal Cross Section | Nominal Insulation Thickness | Nominal Steel Tape Thickness | Nominal Sheath Thickness | Approx. Overall Diameter | Approx.Weight | Max.D.C. Resistance of Conductor at 20℃ |
||
| Cu | Al | Cu | Al | |||||
| mm² | mm | mm | mm | mm | kg/km | kg/km | Ω/km | Ω/km |
| 1×25 | 3.4 | 0.20 | 1.7 | 22.4 | 830 | 678 | 0.727 | 1.2 |
| 1×35 | 3.4 | 0.20 | 1.7 | 23.4 | 955 | 743 | 0.524 | 0.868 |
| 1×50 | 3.4 | 0.20 | 1.8 | 24.7 | 1117 | 830 | 0.387 | 0.641 |
| 1×70 | 3.4 | 0.20 | 1.8 | 26.4 | 1368 | 954 | 0.268 | 0.443 |
| 1×95 | 3.4 | 0.20 | 1.9 | 28.4 | 1682 | 1108 | 0.193 | 0.32 |
| 1×120 | 3.4 | 0.20 | 1.9 | 29.6 | 1947 | 1221 | 0.153 | 0.253 |
| 1×150 | 3.4 | 0.20 | 2.0 | 31.3 | 2264 | 1366 | 0.124 | 0.206 |
| 1×185 | 3.4 | 0.20 | 2.0 | 33.0 | 2664 | 1534 | 0.0991 | 0.164 |
| 1×240 | 3.4 | 0.50 | 2.1 | 36.7 | 3608 | 2141 | 0.0754 | 0.125 |
| 1×300 | 3.4 | 0.50 | 2.2 | 39.1 | 4276 | 2437 | 0.0601 | 0.100 |
| 1×400 | 3.4 | 0.50 | 2.3 | 42.2 | 5214 | 2845 | 0.047 | 0.0778 |
| 1×500 | 3.4 | 0.50 | 2.4 | 45.8 | 6348 | 3341 | 0.0366 | 0.0605 |
| 1×630 | 3.4 | 0.50 | 2.5 | 49.9 | 7875 | 3970 | 0.0283 | 0.0469 |
