Nominal cross

sectional area of conductor

(mm2)

Insulation

Thickness

(mm)

Sheath

Thickness

(mm)

Approx.

Overall

Diameter of

Cable(mm)

Approx.

weight

Of cable

(kg/km)

Cu

D.C resistance of

Conductor

(Ω/km)

Cu

Testing

Voltage

A.     C

(kV/5min)

Current

Rating

In air

Cu

Direct in soil

Cu

4*4

4*6

0.7

0.7

1.5

1.5

13

14

253

337

≤4.61

≤3.08

3.5

3.5

34

43

45

57

4*10

4*16

0.7

0.7

1.5

2.0

16

19

501

778

≤1.83

≤1.15

3.5

3.5

60

83

77

105

4*25

4*35

0.7

0.9

2.0

2.0

22

25

1160

1554

≤0.727

≤0.524

3.5

3.5

105

125

125

155

4*50

4*70

1.0

1.1

2.0

2.0

28

32

2148

2928

≤0.387

≤0.268

3.5

3.5

160

200

185

225

4*95

4*120

1.1

1.2

2.5

2.5

37

42

3954

4925

≤0.193

≤0.153

3.5

3.5

245

285

270

310

4*150

4*185

1.4

1.6

3.0

3.0

46

51

6238

7562

≤0.124

≤0.0991

3.5

3.5

325

375

345

390

4*240

4*300

1.7

1.8

3.0

3.0

57

59

9836

12550

≤0.0754

≤0.0601

3.5

3.5

440

505

450

515