Medium Voltage Cables 

Medium Voltage Cables to BS 6622

Single Core Cables to BS 6622

Single Core 19/33KV (Um=36kV) Dimensional Data

Nom.
Cross-
Section
Area

 

Unarmoured Cables

Aluminium Wire Armoured Cables

Nom.Insulation Thickness

Copper Wire Screen Area

Nom.Sheath
Thickness

Approx. Overall Diameter

Approx. Weight

Copper Tape
Screen
Area

Nom.Bedding
Thickness

Nom. Armour Wire Diameter

Nom.
Sheath Thickness

Approx. Overall Diameter

Approx.
Weight

CU

AL

CU

AL

mm2

mm

mm2

mm

mm

kg/km

mm2

mm

mm

mm

mm

kg/km

50

8.0

16

2.0

34.2

1580

1270

6.7

1.2

2.0

2.2

41.0

2300

1980

70

8.0

16

2.0

35.8

1820

1380

7.1

1.2

2.0

2.2

42.6

2560

2120

95

8.0

16

2.1

37.6

2120

1510

7.5

1.2

2.0

2.3

44.4

2890

2290

120

8.0

16

2.1

39.0

2400

1630

7.9

1.2

2.0

2.3

45.8

3200

2430

150

8.0

25

2.2

40.9

2740

1810

8.2

1.3

2.5

2.4

48.9

3760

2830

185

8.0

25

2.2

42.4

3110

1950

8.6

1.3

2.5

2.5

50.6

4180

3010

240

8.0

25

2.3

45.1

3720

2180

9.2

1.3

2.5

2.5

53.1

4830

3270

300

8.0

25

2.4

47.3

4350

2460

9.7

1.4

2.5

2.6

55.5

5540

3630

400

8.0

35

2.5

51.2

5410

2880

10.3

1.4

2.5

2.7

59.4

6680

4130

500

8.0

35

2.6

53.8

6420

3320

11.0

1.5

2.5

2.8

62.2

7790

4690

630

8.0

35

2.7

59.0

7800

3780

11.8

1.5

2.5

2.9

67.4

9290

5220

Electrical Data

Nom.
Cross-
Section
Area

 

Unarmoured Cables

Aluminium Wire Armoured Cables

 

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 Copper
Wire
Screen
1 sec

Short Circuit Rating of Copper Tape Screen
1 sec

Reactance

Inductance

Impedance

Trefoil

Flat Spaced

Trefoil

Flat Spaced

Trefoil

Flat Spaced

CU

AL

CU

AL

mm2

µΩ/m

µΩ/m

kA

pF/m

mA/m

kA

kA

µΩ/m

µΩ/m

nH/m

nH/m

µΩ/m

µΩ/m

50

387/641

494/822

6.8/4.4

138

0.83

2.6

1.0

151

214

480

680

511

834

527

844

70

268/443

343/568

9.8/6.3

154

0.92

2.6

1.0

144

201

460

640

364

583

386

597

95

193/320

248/410

13.3/8.5

169

1.01

2.6

1.1

138

195

440

620

272

427

300

446

120

153/253

196/325

17.2/11.0

183

1.10

2.6

1.1

132

188

420

600

225

345

257

367

150

124/206

159/265

21.2/13.5

194

1.16

4.3

1.2

126

182

400

580

193

287

229

313

185

99.1/164

128/211

26.6/17.0

210

1.26

4.3

1.2

122

182

390

580

165

237

206

267

240

75.4/125

98/161

34.9/22.3

229

1.37

4.3

1.3

119

176

380

560

140

191

185

226

300

60.1/100

80/130

43.8/28.0

249

1.49

4.3

1.4

113

173

360

550

126

163

174

203

400

47/77.8

64/102

57.3/36.6

273

1.64

5.8

1.5

107

163

340

520

113

141

164

184

500

36.6/60.5

51/81

72.3/46.2

298

1.79

5.8

1.6

104

163

330

520

105

124

158

171

630

28.3/46.9

42/64

91.2/58.3

327

1.96

5.8

1.7

100

160

320

510

97

110

151

160