Below is 2 Core Low Voltage (LV) cable ampacity table which can be used to select cable size.
| Cross Section (sqmm) | In Air (A) | Underground (A) |
|---|---|---|
| 2C x 2.5 | 35 | 45 |
| 2C x 4 | 49 | 59 |
| 2C x 6 | 63 | 74 |
| 2C x 10 | 85 | 99 |
| 2C x 16 | 114 | 128 |
| 2C x 25 | 148 | 166 |
| 2C x 35 | 183 | 199 |
| 2C x 50 | 223 | 234 |
| 2C x 70 | 286 | 288 |
| 2C x 95 | 348 | 345 |
| 2C x 120 | 406 | 391 |
| 2C x 150 | 468 | 439 |
| 2C x 185 | 536 | 496 |
| 2C x 240 | 634 | 573 |
In order to properly apply ampacity data, cable construction shall be as below:
- Standards: IEC 60502,
- System voltage 0,6/1(1,2) kV, 50Hz,
- Cable designation: Cu/XLPE/PVC/SWA 2C cable,
- Underground Installation: Direct Buried,
- Manufacturer: LS cable
See also: Electrical Cable Standards • Cable construction • Voltage Drop Calculator
In addition, ambient conditions of cable installation shall be:
- Ground temperature: 20°C
- Ambient air temperature: 30°C
- Ground thermal resistivity: 150°C x cm/W
- Burial depth: 0.8 m