Type

&

voltage

Nominal cross section of conductor (mm2)

Number/

diameter of core

(mm)

Average upper limit of O.D.

(mm)

Conductor resistance

at 20ºC(Ω/km)

aluminium

Copper

60227 IEC 01 (BV)

450/750V

GB/T5023.3-2008

&

BLV

450/50V

JB/T8734.2-2016

1.5

1/1.38

3.2

*

12.1

2.5

1/1.78

3.9

11.80

7.4

4

1/2.25

4.4

7.39

4.61

6

1/2.76

5.0

4.91

3.08

10

7/1.35

6.7

3.08

1.83

16

7/1.70

7.8

1.91

1.15

25

7/2.14

9.7

1.20

0.727

35

7/2.52

10.9

0.868

0.524

50

19/1.78

12.8

0.641

0.387

70

19/2.14

14.6

0.443

0.268

95

19/2.52

17.1

0.320

0.193

120

37/2.03

18.8

0.253

0.153

150

37/2.25

20.9

0.206

0.124

185

37/2.52

23.3

0.164

0.0991