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

10

2.5

0.1

16

1.8

16

320

260

1.2

1.6

1.8

22

610

550

16

2.5

0.1

16

1.8

16

390

290

1.2

1.6

1.8

22

680

580

25

2.5

0.1

16

1.8

18

500

340

1.2

1.6

1.8

23

810

660

35

2.5

0.1

16

1.8

19

610

400

1.2

1.6

1.8

24

940

730

50

2.5

0.1

16

1.8

20

750

450

1.2

1.6

1.8

26

1100

810

70

2.5

0.1

16

1.8

22

970

550

1.2

1.6

1.8

27

1350

930

95

2.5

0.1

16

1.8

23

1250

660

1.2

1.6

1.9

29

1670

1080

120

2.5

0.1

16

1.8

25

1500

760

1.2

1.6

1.9

31

1950

1200

150

2.5

0.1

25

1.8

26

1790

860

1.2

1.6

2.0

32

2270

1350

185

2.5

0.1

25

1.8

28

2150

1000

1.2

2.0

2.1

35

2770

1620

240

2.6

0.1

25

1.9

31

2770

1250

1.2

2.0

2.2

38

3440

1930

300

2.8

0.1

25

2.0

34

3400

1500

1.2

2.0

2.2

41

4120

2210

400

3.0

0.1

35

2.1

38

4280

1850

1.3

2.5

2.4

46

5250

2820

500

3.2

0.1

35

2.1

41.5

5325

2240

1.4

2.5

2.6

50

6520

3520

630

3.2

0.1

35

2.2

45.3

6745

2750

1.5

2.5

2.7

56

7960

4020

800

3.2

0.1

50

2.4

49.9

8290

3310

1.5

2.5

2.8

59

9660

4820

1000

3.2

0.1

50

2.5

54.2

10255

3990

1.6

2.5

3.0

63

11690

5540

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

µΩm

kA

pF/m

mA/m

kA

kA

µΩ/m

nH/m

µΩ/ m

µΩ/m

10

1830/3080

2330/3920

1.4/0.9

202

0.26

2.6

0.4

160

214

420

610

2332

3846

2345

3840

16

1150/1910

1460/2420

2.2/1.4

232

0.29

2.6

0.4

152

205

410

600

1462

2411

1478

2421

25

727/1200

927/1538

3.6/2.3

262

0.32

2.6

0.4

142

196

400

590

936

1544

952

1554

35

524/868

668/1113

5.0/3.2

291

0.35

2.6

0.5

133

187

390

580

679

1121

695

1131

50

387/641

494/822

6.8/4.4

321

0.39

2.6

0.5

121

179

380

570

511

834

527

844

70

268/443

343/568

9.8/6.3

371

0.45

2.6

0.6

115

173

370

550

364

583

386

597

95

193/320

248/410

13.3/8.5

417

0.50

2.6

0.6

110

168

350

540

272

427

300

446

120

153/253

196/325

17.2/11.0

459

0.55

2.6

0.7

107

165

340

520

225

345

257

367

150

124/206

159/265

21.2/13.5

494

0.59

4.3

0.7

103

161

330

510

193

287

229

313

185

99.1/164

128/211

26.6/17.0

543

0.65

4.3

0.8

100

158

320

500

165

237

206

267

240

75.4/125

98/161

34.9/22.3

583

0.70

4.3

0.9

97

155

310

490

140

191

185

226

300

60.1/100

80/130

43.8/28.0

602

0.72

4.3

1.0

95

153

300

490

126

163

174

203

400

47.0/77.8

64/102

57.3/36.6

627

0.75

5.8

1.1

92

150

290

480

113

141

164

184

500

36.6/60.5

51/81

72.3/46.2

654

0.79

5.8

1.2

90

147

290

470

105

124

158

171

630

28.3/46.9

42/64

91.2/58.3

726

0.87

5.8

1.3

87

145

280

460

97

110

151

160

800

22.1/36.7

35/55

114.4/75.0

786

0.91

8.2

1.4

85

143

270

460

92

101

147

153

1000

17.6/29.1

30/46

143.0/94.0

856

0.99

8.2

1.5

83

141

260

450

88

95

144

148