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 Screen) 22KV XLPE Stranded Copper Conductors

Construction

cross-ectional area mmsq Minimum average thickness of insulation mm Nominal diameter over insulation
mm 		Nominal area of copper wire screen
mm 		Nominal average thickness of PVC oversheath
mm 		Nominal overall diameter of cable mm
50 5.5 21.6 16 1.8 28.8
70 5.5 23.4 16 1.9 30.6
95 5.5 25.1 16 1.9 32.5
120 5.5 26.6 16 2.0 34.0
150 5.5 27.9 16 2.0 35.5
185 5.5 29.7 16 2.1 37.3
240 5.5 31.9 25 2.2 39.7
300 5.5 34.2 25 2.2 42.2
400 5.5 36.9 35 2.3 45.2
500 5.5 39.8 35 2.4 48.3
630 5.5 43.2 35 2.5 51.9
800 Please refer to our technical department for further information
1000

Installation

cross-sectional area mmsq Approximate cable weight kg/m Nominal drum length
m 		Minimum bending radius mm Nominal internal diameter of ducts mm
50 1.2 1000 550 100
70 1.5 1000 600 100
95 1.8 1000 600 100
120 2 500 650 100
150 2.4 500 650 100
185 2.7 500 700 100
240 3.4 500 750 100
300 4.1 500 800 100
400 5 500 850 100
500 6.1 500 900 100
630 7.4 250 950 100
800 Please refer to our technical department for further information
1000

Electrical Performance

cross-sectional area mmsq 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
50 387 494 141 573 177 0.71
70 268 343 132 367 200 0.80
95 193 248 125 277 222 0.89
120 153 196 120 230 241 0.96
150 124 159 117 197 257 1.03
185 99.1 128 112 169 280 1.12
240 75.4 98 108 145 307 1.23
300 60.1 80 105 131 336 1.34
400 47 64 101 119 370 1.48
500 36.6 57 98.3 110 406 1.62
630 28.3 42 94.9 103 449 1.80
800 Please refer to our technical department for further information
1000

Ratings

Cross-sectional area
mmsq		 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
50 220 225 260 6.8 2.6
70 270 270 320 9.8 2.6
95 320 320 390 13.3 2.6
120 360 360 445 17.2 2.6
150 410 405 510 21.2 2.6
185 460 445 580 26.6 2.6
240 530 520 680 34.9 4.3
300 600 570 770 43.8 4.3
400 690 630 890 57.3 5.8
500 760 700 1020 72.3 5.8
630 850 780 1160 91.2 5.8
800 Please refer to our technical department for further information
1000