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3 Core Low Voltage Cable Ampacity

Below is 3 Core Low Voltage (LV) cable ampacity table which can be used to select cable size.

Cross Section
(sqmm)
In Air
(A)
Underground
(A)
3C x 2.53139
3C x 44249
3C x 65362
3C x 107483
3C x 1699108
3C x 25126137
3C x 35156166
3C x 50190196
3C x 70244241
3C x 95295289
3C x 120343329
3C x 150395368
3C x 185451415
3C x 240532480

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 3C cable,
  • Underground Installation: Direct Buried,
  • Manufacturer: LS cable

See also: Electrical Cable StandardsCable constructionVoltage 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