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 Armoured 33KV XLPE Stranded Copper Conductors

Construction

cross-sectional area mm2 Minimum average thickness of insulation mm Nominal diameter over insulation
mm 		Nominal thickness of PVC bedding
mm 		Nominal number and diameter of armoured wires no./mm Nominal thickness of PVC oversheath
mm 		Nominal overall diameter of cable mm
50 8 27.1 1.2 46/2.0 2.2 39.4
70 8 28.9 1.2 48/2.0 2.2 41.4
95 8 30.6 1.2 51/2.0 2.3 43.3
120 8 32.1 1.2 53/2.0 2.3 44.8
150 8 33.4 1.3 44/2.5 2.4 47.5
185 8 35.2 1.3 46/2.5 2.5 49.5
240 8 37.4 1.3 49/2.5 2.5 51.7
300 8 39.7 1.4 52/2.5 2.6 54.4
400 8 42.4 1.4 55/2.5 2.7 57.3
500 8 45.3 1.5 58/2.5 2.8 60.6
630 8 48.7 1.5 62/2.5 2.9 64.2
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 2.1 1000 850 100
70 2.4 500 900 100
95 2.7 500 950 100
120 3.1 500 950 100
150 3.6 500 1000 100
185 4.0 500 1050 100
240 4.7 500 1100 100
300 5.5 500 1150 100
400 6.4 250 1250 100
500 7.6 250 1300 125
630 9.1 250 1350 125
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
50 387 494 160 578 138 0.83
70 268 343 151 374 154 0.92
95 193 248 143 285 169 1.01
120 153 196 137 239 183 1.10
150 124 159 135 207 194 1.16
185 99.1 128 130 181 210 1.26
240 75.4 98 125 158 229 1.37
300 60.1 80 121 144 249 1.49
400 47.0 64 116 132 273 1.64
500 36.6 51 113 123 298 1.79
630 28.3 42 108 115 327 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
50 220 210 260 6.8 Typically less then 1kA
70 270 260 320 9.8
95 320 300 380 13.3
120 360 340 440 17.2
150 410 370 490 21.2
185 450 400 560 26.6
240 510 450 650 34.9
300 570 490 730 43.8
400 640 530 830 57.3
500 700 570 940 72.3
630 760 610 1050 91.2
800 Please refer to our technical department for further information
1000