Power Cables 

Power Cables

BS 6622 Single Core Unarmoured (Copper Wire Screen) 22KV XLPE Stranded Copper Conductors

Construction

cross-sectional 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