Nominal Cross Sectional Area

Circular conductors no. / Diameter of Wires

Shaped/Compacted conductors Minimum No. of wires

Maximum Dc resistance at 20^o C ohm/Km

Flexible Conductors

COPPER

ALUMINUM

No./ Diameter of wires

Max Dc resistance at 20^oC

Nominal Weight /Km of Conductor

Nominal Weight /Km of Conductor

(mm²)

mm

CU

AL

CU

AL

CU

Ohm/km

Kg

Kg

0.50

1/0.80

-

-

36.0

-

16/0.20

3.90

4.47

-

0.50

7/0.31

-

-

36.0

-

4.79

-

0.75

1/0.97

-

-

24.5

-

24/0.20

2.60

6.57

-

0.75

7/0.37

-

-

24.5

-

6.82

-

1

1/1.13

-

-

18.1

-

32/0.20

1.95

9.0

-

1

7/0.44

-

-

18.1

-

8.0

-

1.5

1/1.38

-

-

12.1

-

30/0.25

1.33

13.3

-

1.5

7/0.53

-

-

12.1

-

12.5

-

2.5

1/1.77

-

-

7.41

-

50/0.25

7.98

22.2

-

2.5

7/0.67

-

-

7.41

-

22.4

-

4

7/0.85

-

-

4.61

7.41

56/0.30

4.95

35.4

10.7

6

7/1.04

-

-

3.08

4.61

 84/0.30

3.30

53.2

16.4

10

7/1.35

-

-

1.83

3.08

80/0.40

1.91

89.0

27.4

16

7/1.70

6

6

1.15

1.91

126/0.40

1.21

142

43.9

25

7/2.14

6

6

0.727

1.20

190/0.40

0.780

229

69.5

35

7/2.52

6

6

0.524

0.868

276/0.40

0.554

317

96.4

50

19/1.78

6

6

0.387

0.641

396/0.40

0.386

429

131

70

19/2.14

12

12

0.268

0.443

360/0.50

0.272

620

189

95

19/2.52

15

15

0.193

0.320

475/0.50

0.206

860

262

120

37/2.03

18

15

0.153

0.253

608/0.50

0.161

1086

331

150

37/2.25

18

15

0.124

0.206

756/0.50

0.129

1334

406

185

37/2.52

30

30

0.0991

0.164

925/0.50

0.106

1673

509

240

61/2.25

34

30

0.0754

0.125

1221/0.50

0.0801

2199

669

300

61/2.52

34

30

0.0601

0.100

1525/0.50

0.0641

2759

839

400

61/2.85

53

53

0.0470

0.0778

2013/0.50

0.0486

3528

1073

500

61/3.20

53

53

0.0366

0.0605

1769/0.60

0.0384

4448

1353

630

91/2.97

53

53

0.0283

0.0469

2257/0.60

0.0287

5744

1746

800

91/3.35

-

-

0.0221

0.0367

-

-

7346

2233

1000

91/3.74

-

-

0.0176

0.0291

-

-

9260

2816