Medium Voltage Cables to BS 6622

Nom. Cross- Section Area

Nom. Insulation Thickness

Copper Wire Screen Area

Copper Tape Screen Area

Nom.Bedding Thickness

Nom. Armour Wire Diameter

Nom. Sheath Thickness

Approx. Overall Diameter

Approx. Weight

CU

AL

mm²

mm

mm²

mm²

mm

mm

mm

mm

kg/km

70

8.0

16

10.5

1.8

3.15

3.5

82.5

11840

10440

95

8.0

16

11.2

1.9

3.15

3.6

86.4

13200

11350

120

8.0

16

12.0

2.0

3.15

3.7

89.9

14520

12190

150

8.0

25

12.5

2.0

3.15

3.8

93.6

16070

13280

185

8.0

25

13.2

2.1

3.15

3.9

97.3

17710

14090

240

8.0

25

14.3

2.2

3.15

4.1

103.2

20370

15460

300

8.0

25

15.2

2.3

3.15

4.3

108.2

22980

17210

400

8.0

35

16.2

2.4

3.15

4.5

116.8

27480

19450

Nom. Cross- Section Area

D C
Resistance CU / AL

A C
Resistance CU / AL

Short Circuit Rating of Conductor CU / AL
1 sec

Capaci- tance

Charging Current

Short Circuit Rating of Screen 1 sec

Reac- tance

Induc- tance

Current Ratings

Ground

Duct

Air

Copper Wire

Copper Tape

CU

AL

CU

AL

CU

AL

mm²

µΩ/m

µΩ/m

kA

pF/m

mA/m

kA

µΩ/m

nH/m

A

A

A

70

268/443

343/568

9.8/6.3

159

0.95

1.96

1.54

127

400

255

195

225

170

275

215

95

193/320

248/410

13.3/8.5

175

1.05

1.96

1.64

121

390

295

230

260

205

330

260

120

153/253

196/325

17.2/11.0

189

1.13

1.96

1.75

117

370

335

260

300

235

380

300

150

124/206

159/265

21.2/13.5

201

1.21

3.06

1.83

113

360

375

290

335

265

430

335

185

99/164

128/211

26.6/17.0

217

1.30

3.06

1.93

109

350

420

330

380

300

490

390

240

75/125

98/161

34.9/22.3

237

1.42

3.06

2.09

104

330

480

380

430

345

570

460

300

60/100

80/130

43.8/28.0

258

1.55

3.06

2.21

101

320

530

425

480

385

650

520

400

47/78

64/102

57.3/36.6

282

1.69

4.29

2.37

96

290

590

480

520

420

700

570