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) 33KV XLPE Stranded Copper Conductors

Construction

cross-sectional area mm2 Minimum average thickness of insulation mm Nominal diameter over insulation
mm 		Nominal area of copper wire screen
mm2		 Nominal average thickness of PVC oversheath
mm 		Nominal overall diameter of cable mm
50 8 27.1 16 2.0 34.5
70 8 28.9 16 2.0 36.5
95 8 30.6 16 2.1 38.4
120 8 32.1 16 2.1 39.9
150 8 33.4 16 2.2 41.2
185 8 35.2 16 2.2 13.2
240 8 37.4 25 2.3 15.7
300 8 39.7 25 2.4 18.2
400 8 42.4 35 2.5 51.1
500 8 45.3 35 2.6 54.0
630 8 48.7 35 2.7 57.8
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 1.5 1000 750 100
70 1.8 500 800 100
95 2.1 500 850 100
120 2.4 500 850 100
150 2.7 500 900 100
185 3.1 500 950 100
240 3.8 500 1000 100
300 4.5 500 1050 100
400 5.5 250 1100 100
500 6.6 250 1150 100
630 8.0 250 1250 100
800 Please refer to our technical department 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
50 387 494 152 516 138 0.83
70 268 343 143 371 154 0.92
95 193 248 135 281 169 1.01
120 153 196 130 235 183 1.10
150 124 159 126 202 194 1.16
185 99.1 128 122 176 210 1.26
240 75.4 98 117 152 229 1.37
300 60.1 80 113 138 249 1.49
400 47.0 64 109 126 273 1.64
500 36.6 51 105 116 298 1.79
630 28.3 42 102 110 327 1.96
800 Please refer to our technical department for further information
1000

Ratings

Cross-sectional area
mm2		 Current Ratings Short circuit ratings
Laid 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 6.0
630 850 780 1160 91.2 5.8
800 Please refer to our technical department for further information
1000