Power Cables 

Power Cables

BS 6622 Single Core Armoured 22KV XLPE Stranded Copper 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

50

5.5

21.6

1.2

47/1.6

2

32.7

70

5.5

23.4

1.2

40/2.0

2

35.3

95

5.5

25.1

1.2

43/2.0

2.1

37.2

120

5.5

26.6

1.2

45/2.0

2.1

38.7

150

5.5

27.9

1.2

47/2.0

2.2

40.4

185

5.5

29.7

1.2

49/2.0

2.2

42.2

240

5.5

31.9

1.2

52/2.0

2.3

44.6

300

5.5

34.2

1.3

45/2.5

2.4

48.3

400

5.5

36.9

1.3

48/2.5

2.5

51.2

500

5.5

39.8

1.4

52/2.5

2.6

54.5

630

5.5

43.2

1.4

55/2.5

2.8

58.3

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

1.6

1000

600

100

70

1.9

500

650

100

95

2.3

500

700

100

120

2.6

500

700

100

150

2.9

500

750

100

185

3.4

500

800

100

240

4.0

500

850

100

300

4.9

500

900

100

400

5.8

250

950

100

500

7.0

250

1000

100

630

8.4

250

1050

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

149

515

177

0.71

70

268

343

141

370

200

0.80

95

193

248

133

281

222

0.89

120

153

196

128

234

241

0.96

150

124

159

125

201

257

1.03

185

99.1

128

120

174

280

1.12

240

75.4

98

116

151

307

1.23

300

60.1

80

113

137

336

1.34

400

47

64

109

125

370

1.48

500

36.6

51

106

117

406

1.62

630

28.3

42

102

110

449

1.8

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

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