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Participate in multiple overseas projects

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Extensive experience in overseas project submission

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Special cable customization service
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BS 6622 Three Core Armoured 11kV XLPE Stranded Aluminium Conductors

 

Construction

cross-sectional area mmsq 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
70 3.4 18.8 1.4 54/2.5 2.7 57.1
95 3.4 20.5 1.5 59/2.5 2.8 61.2
120 3.4 22.0 1.6 62/2.5 3.0 65.0
150 3.4 23.3 1.6 65/2.5 3.1 68.0
185 3.4 25.1 1.7 70/2.5 3.2 72.3
240 3.4 27.3 1.8 61/3.15 3.4 79.0
300 3.4 29.6 1.9 65/3.15 3.6 84.5
400 3.4 32.3 2.0 70/3.15 3.8 90.9

Installation

cross-sectional area mmsq Approximate cable weight kg/m Nominal drum length m Minimum bending radius mm Nominal internal diameter of ducts mm
70 5.1 500 700 100
95 5.7 500 750 100
120 6.4 500 800 100
150 6.9 500 850 125
185 7.3 500 900 125
240 9.7 500 950 125
300 10.9 450 1050 125
400 12.5 400 1100 125

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
70 443 568 108 578 298 0.62
95 320 410 102 422 334 0.67
120 253 325 98.8 340 365 0.73
150 206 265 96.2 282 392 0.78
185 164 211 93.1 231 430 0.86
240 125 161 90.0 184 476 0.95
300 100 130 87.4 157 524 1.05
400 77.8 102 84.9 133 580 1.16

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
70 195 165 210 6.3 Typically less than 1kA
95 230 200 250 8.5
120 265 225 295 11.0
150 295 255 330 13.5
185 335 290 385 17.0
240 380 335 450 22.3
300 435 375 510 28.0
400 480 420 570 36.6