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

2x10

6

1.00

6.5x13.0

3.08

0.0067

0.67

1650

2x16

6

1.20

8.0x16.0

1.91

0.0065

0.65

2512

2x25

6

1.20

9.4x18.8

1.2

0.0054

0.54

3762

2x35

6

1.40

11.0x22.0

0.868

0.0054

0.54

5177

2x50

6

1.40

12.3x24.6

0.641

0.0046

0.46

7011

2x70

12

1.40

14.1x28.2

0.443

0.004

0.4

10354

2x95

15

1.60

16.5x33.0

0.32

0.0039

0.39

13727

2x120

15

1.60

18.1x36.2

0.252

0.0035

0.35

17339

2x150

15

1.80

20.2x40.4

0.206

0.0035

0.35

21033

2x185

30

2.00

22.5x45.0

0.164

0.0035

0.35

26732

2x240

30

2.20

25.6x51.2

0.125

0.0034

0.34

34679

4x10

6

1.00

6.5x26.0

3.08

0.0067

0.67

1650

4x16

6

1.20

8.0x32.0

1.91

0.0065

0.65

2512

4x25

6

1.20

9.4x37.6

1.2

0.0054

0.54

3762

4x35

6

1.40

11.0x44.0

0.868

0.0054

0.54

5177

4x50

6

1.40

12.3x49.2

0.641

0.0046

0.46

7011

4x70

12

1.40

14.1x56.4

0.443

0.004

0.4

10354

4x95

15

1.60

16.5x66.0

0.32

0.0039

0.39

13727

4x120

15

1.60

18.1x72.4

0.252

0.0035

0.35

17339

4x150

15

1.80

20.2x80.8

0.206

0.0035

0.35

21033

4x185

30

2.00

22.5x90.0

0.164

0.0035

0.35

26732

4x240

30

2.20

25.6x102.4

0.125

0.0034

0.34

34679