Power Cables
PVC Insulated & Sheathed Unarmoured XLPE Insulated PVC/LSOH Sheathed LSOH Insulated Conduit Wires Fire Resistant Medium Voltage

Power Cables

BS 6622 Single Core Unarmoured (Copper Wire Screened) 6.6kV XLPE Stranded Copper Conductors

Construction

cross-sectional area mm2 Minimum average thickness of insulation mm Nominal diameter over insulation
mm  		 Nominal area of copperwire screen mm2 Nominal average thickness of PVC oversheath
mm 		Nominal overall diameter of cable mm
50 2.5 15.0 16.0 1.6 21.7
70 2.5 16.8 16.0 1.7 23.5
95 2.5 18.5 16.0 1.7 25.4
120 2.5 20.0 16.0 1.8 26.9
150 2.5 21.3 16.0 1.8 28.5
185 2.5 23.1 16.0 1.9 30.3
240 2.6 25.5 25.0 1.9 32.9
300 2.8 28.3 25.0 2.0 35.9
400 3.0 31.4 35.0 2.2 39.2
500 3.2 34.7 35.0 2.3 42.8
630 3.2 38.1 35.0 2.4 46.5
800 Please refer to our technical department for further information
1000

Installation

cross-sectional area mm2 Approximate cable weight kg/m Nominal drum length
m 		Minimum bending radius mm Nominal internal diameter of ducts mm
50 0.9 1000 350 100
70 1.1 1000 400 100
95 1.4 1000 400 100
120 1.7 1000 450 100
150 2.0 500 450 100
185 2.4 500 500 100
240 3.0 500 500 100
300 3.6 500 550 100
400 4.5 500 600 100
500 5.6 500 650 100
630 6.9 300 700 100
800 Please refer to our technical departmen for further information
1000

Electrical Performance

cross-sectional area mm2 Maximum DC resistance of conductor at 20 ℃ uohms/m Maximum AC resistance of conductor at 90 ℃ uohms/m Reactance at 50Hz
uohms/m 		Impedance at 50Hz uohms/m Maximum Capacitace PF/m Maximum charging current at normal voltage and frequency mA/m
50 387 494 123.0 508.0 321.0 0.39
70 268 343 115.0 361.0 371.0 0.45
95 193 248 109.0 270.0 417.0 0.50
120 153 196 105.0 222.0 459.0 0.55
150 124 159 103.0 189.0 494.0 0.59
185 99.1 128 99.5 162.0 543.0 0.65
240 75.4 98 96.6 138.0 583.0 0.70
300 60.1 80 94.7 124.0 602.0 0.72
400 47.0 64 92.5 112.0 627.0 0.75
500 36.6 51 90.7 104.0 654.0 0.79
630 38.3 42 88.0 97.1 726.0 0.87
800 Please refer to our technical department for further information
1000

Ratings

Cross-sectional area
mm2		 Current Ratings Short circuit ratings
Laid direct in ground
Amps 		Drawn into ducts
Amps 		Laid in air
Amps 		One second short circuit rating of conductor
KA 		One second short circuit rating of copper per core
KA
50 220 225 250 6.8 2.6
70 270 270 310 9.8 2.6
95 320 320 375 13.3 2.6
120 360 360 430 17.2 2.6
150 410 400 490 21.2 2.6
185 460 440 560 26.6 2.6
240 530 505 660 34.9 4.3
300 600 560 760 43.8 4.3
400 680 610 880 57.3 5.8
500 750 680 1000 72.3 5.8
630 830 750 1140 91.2 5.8
800 Please refer to our technical department for further information
1000