Cross Section of Conductor 
(mm2)

Min.Nos. of Wires for Conductor
(mm)

Insulation Thickness
(mm)

Average Max. O.D.per Single-core 
(mm)

Max.Conductor Resistance at 20ºC 
(Ω/km)

Min Insulated Resistance at Rated Working Temperature
(MΩ.km)

Cable Tensile Breaking Force

2×10

6

1.00

6.5×13.0

3.08

0.0067

0.67

1650

2×16

6

1.20

8.0×16.0

1.91

0.0065

0.65

2512

2×25

6

1.20

9.4×18.8

1.2

0.0054

0.54

3762

2×35

6

1.40

11.0×22.0

0.868

0.0054

0.54

5177

2×50

6

1.40

12.3×24.6

0.641

0.0046

0.46

7011

2×70

12

1.40

14.1×28.2

0.443

0.004

0.4

10354

2×95

15

1.60

16.5×33.0

0.32

0.0039

0.39

13727

2×120

15

1.60

18.1×36.2

0.252

0.0035

0.35

17339

2×150

15

1.80

20.2×40.4

0.206

0.0035

0.35

21033

2×185

30

2.00

22.5×45.0

0.164

0.0035

0.35

26732

2×240

30

2.20

25.6×51.2

0.125

0.0034

0.34

34679

4×10

6

1.00

6.5×26.0

3.08

0.0067

0.67

1650

4×16

6

1.20

8.0×32.0

1.91

0.0065

0.65

2512

4×25

6

1.20

9.4×37.6

1.2

0.0054

0.54

3762

4×35

6

1.40

11.0×44.0

0.868

0.0054

0.54

5177

4×50

6

1.40

12.3×49.2

0.641

0.0046

0.46

7011

4×70

12

1.40

14.1×56.4

0.443

0.004

0.4

10354

4×95

15

1.60

16.5×66.0

0.32

0.0039

0.39

13727

4×120

15

1.60

18.1×72.4

0.252

0.0035

0.35

17339

4×150

15

1.80

20.2×80.8

0.206

0.0035

0.35

21033

4×185

30

2.00

22.5×90.0

0.164

0.0035

0.35

26732

4×240

30

2.20

25.6×102.4

0.125

0.0034

0.34

34679