Nom.
Cross-
Section
Area

Unarmoured Cables

Steel 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

25

4.5

16

2.4

48.4

3000

2420

4.4

1.4

2.5

2.6

55.2

5600

5100

35

4.5

16

2.5

50.4

3450

2670

4.7

1.4

2.5

2.7

57.6

6130

5440

50

4.5

16

2.6

53.7

4140

3190

4.9

1.5

2.5

2.8

61.1

7010

6060

70

4.5

16

2.7

57.2

4980

3640

5.3

1.5

2.5

2.9

64.6

8030

6700

95

4.5

16

2.8

60.6

5900

4050

5.7

1.6

2.5

3.0

68.2

9160

7330

120

4.5

16

2.9

63.9

6870

4560

6.1

1.7

2.5

3.1

71.7

10340

8030

150

4.5

25

3.0

67.9

8030

5230

6.4

1.7

2.5

3.2

75.4

11730

8930

185

4.5

25

3.1

71.1

9310

5770

6.8

1.8

3.15

3.4

80.6

14170

10570

240

4.5

25

3.3

76.9

11390

6680

7.4

1.9

3.15

3.6

86.6

16670

11810

300

4.5

25

3.5

81.6

13510

7790

7.9

2.0

3.15

3.7

91.3

19140

13340

400

4.5

35

3.7

89.9

17130

9340

8.5

2.1

3.15

4.0

100.0

23360

15410

Nom.
Cross-
Section
Area

Unarmoured  Cables

Steel Wire Armoured Cables

Current Ratings

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 Per Core
1 sec

Short Circuit Rating of Copper Tape Screen
Per Core
1 sec

Reac-
tance

Induc-
tance

Ground

Duct

Air

CU

AL

Cu

Al

Cu

Al

mm2

µΩ/m

µΩ/m

kA

pF/m

mA/m

kA

kA

µΩ/m

nH/m

A

A

A

25

727/1200

927/1538

3.6/2.3

176

0.48

2.6

0.6

138

410

140

115

125

95

145

115

35

524/868

668/1113

5.0/3.2

193

0.53

2.6

0.6

123

390

170

135

150

115

175

140

50

387/641

494/822

6.8/4.4

211

0.58

2.6

0.7

116

370

210

160

180

135

220

170

70

268/443

343/568

9.8/6.3

240

0.65

2.6

0.7

110

350

255

195

215

165

270

210

95

193/320

248/410

13.3/8.5

267

0.73

2.6

0.8

105

330

300

230

255

200

330

250

120

153/253

196//325

17.2/11.0

291

0.79

2.6

0.8

102

320

340

265

290

225

375

295

150

124/206

159/265

21.2/13.5

312

0.85

4.3

0.9

98

310

380

300

330

255

430

330

185

99.1/164

128/211

26.6/17.0

340

0.93

4.3

0.9

95

300

430

335

370

290

490

385

240

75.4/125

98/161

34.9/22.3

375

1.02

4.3

1.0

91

290

490

380

425

335

570

450

300

60.1/100

80/130

43.8/28.0

411

1.12

4.3

1.1

89

280

540

435

470

375

650

510

400

47.0/77.8

64/102

57.3/36.6

454

1.24

5.8

1.2

84

270

590

480

520

420

700

570