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

3.4

16

7.23

1.4

2.5

2.7

59.2

7200

5870

95

3.4

16

7.91

1.5

2.5

2.8

63.2

8420

6550

120

3.4

16

8.64

1.6

2.5

3.0

67.0

9580

7190

150

3.4

25

9.19

1.6

2.5

3.1

70.3

10830

8030

185

3.4

25

9.88

1.7

2.5

3.2

73.9

12290

8720

240

3.4

25

10.96

1.8

3.15

3.4

81.2

15620

10790

300

3.4

25

11.84

1.9

3.15

3.6

86.1

18030

12240

400

3.4

35

12.92

2.0

3.15

3.8

95.0

22350

14350

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

Current Ratings

Reac- tance

Induc- tance

Ground

Duct

Air

Copper Wire

Copper Tape

CU

AL

CU

AL

CU

AL

mm²

µ Ω/m

µ Ω/m

kA

pF/m

mA/m

kA

µΩ/m

nH/m

A

A

A

70

268/443

343/568

9.8/6.3

298

0.60

1.96

1.05

103

330

255

195

215

165

270

210

95

193/320

248/410

13.3/8.5

334

0.67

1.96

1.16

99

310

300

230

255

200

330

250

120

153/253

196/325

17.2/11.0

365

0.73

1.96

1.26

96

310

340

265

290

225

375

295

150

124/206

159/265

21.2/13.5

392

0.78

3.06

1.34

93

300

380

295

330

255

430

330

185

99/164

128/211

26.6/17.0

430

0.86

3.06

1.44

90

290

430

335

370

290

490

385

240

75/125

98/161

34.9/22.3

476

0.95

3.06

1.60

87

280

490

380

425

335

570

450

300

60/100

80/130

43.8/28.0

524

1.05

3.06

1.73

85

270

540

435

470

375

650

510

400

47/78

64/102

57.3/36.6

580

1.16

4.29

1.89

81

260

590

480

520

420

700

570