Medium Voltage Cables 

Medium Voltage Cables to IEC 60502

Single Core Cables to IEC 60502

Single Core 21/35KV (Um=42KV) Dimensional Data

Nom.
Cross-
Section
Area

 

Unarmoured Cables

Aluminium Wire Armoured Cables

Nom.
Insulation
Thickness

Copper Tape Thickness

Copper
Wire
Screen
Area*

Nom.
Sheath
Thickness

Approx.
Overall
Diameter

Approx.
Weight

Nom.
Bedding
Thickness

Armour
Wire
Size

Nom.
Sheath
Thickness

Approx.
Overall
Diameter

Approx.
Weight

Cu

Al

Cu

Al

mm2

mm

mm

mm2

mm

mm

kg/km

mm

mm

mm

mm

kg/km

50

9.3

0.1

16

2.0

35.7

1526

1239

1.2

2.0

2.3

43.5

2331

2116

70

9.3

0.1

16

2.1

37.6

1809

1393

1.2

2.5

2.4

46.6

2680

2325

95

9.3

0.1

16

2.2

39.4

2123

1555

1.2

2.5

2.5

48.4

2981

2482

120

9.3

0.1

16

2.2

40.8

2405

1688

1.4

2.5

2.5

49.8

3487

2867

150

9.3

0.1

25

2.2

42.3

2733

1838

1.4

2.5

2.6

51.5

3870

3055

185

9.3

0.1

25

2.3

44.7

3216

2082

1.4

2.5

2.6

53.5

4420

3370

240

9.3

0.1

25

2.4

46.9

3766

2333

1.4

2.5

2.7

55.8

4981

3676

300

9.3

0.1

25

2.4

49.3

4408

2605

1.4

2.5

2.8

58.5

5661

3971

400

9.3

0.1

35

2.5

52.3

5473

3057

1.6

2.5

2.9

61.7

6865

4550

*Optional wire screen can be provided in combination of copper tapes. Nominal screen area, as stated in the table, can be supplied as standard.

Electrical Data

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 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

nH/m

µΩ/ m

µΩ/ m

50

387/641

494/822

6.8/4.4

130

0.89

2.6

1.1

156

220

495

700

511

834

527

844

70

268/443

343/568

9.8/6.3

144

0.98

2.6

1.1

150

204

475

650

364

583

386

597

95

193/320

248/410

13.3/8.5

159

1.06

2.6

1.2

142

198

455

630

272

427

300

446

120

153/253

196/325

17.2/11.0

171

1.18

2.6

1.2

137

191

435

610

225

345

257

367

150

124/206

159/265

21.2/13.5

180

1.26

4.3

1.3

131

185

415

590

193

287

229

313

185

99.1/164

128/211

26.6/17.0

193

1.34

4.3

1.3

125

185

400

590

165

237

206

267

240

75.4/125

98/161

34.9/22.3

210

1.45

4.3

1.4

123

179

390

570

140

191

185

226

300

60.1/100

80/130

43.8/28.0

228

1.57

4.3

1.5

116

176

370

560

126

163

174

203

400

47.0/77.8

64/102

57.3/36.6

249

1.74

5.8

1.6

110

166

350

530

113

141

164

184

* For capacitance & charging current values, multiply values shown by 1.2 for EPR insulated cables.