Oman Low-Voltage-Power-and-Control-Cables

TABLE - 48

CURRENT RATINGS & VOLTAGE DROP OF THE CABLES - 600/1000 V Two Core Copper, PVC insulated Armoured/Unarmoured Cables.

In Air

In Ground

I n Duct

Approx Voltage Drop (1 Phase System)

Area

Two Core

Two Core

Two Core

Unarmoured Armoured

Armoured

Armoured

Trefoil

mm²

A

A

A

A

V/A/km

1.5

16

16

26

21

28.96

2.5

22

22

33

27

17.74

4

29

29

44

36

11.04

6

37

38

55

46

7.38

10

48

52

74

61

4.38

16

65

68

95

78

2.77

25

87

91

126

103

1.75

35

107

111

152

123

1.26

50

130

135

180

146

0.94

70

163

169

222

180

0.662

95

202

209

266

217

0.488

120

235

241

302

247

0.40

150

269

274

338

277

0.337

185

311

317

382

314

0.284

240

370

374

441

364

0.239

300

426

426

493

408

0.213

400

495

488

554

459

0.192

Operating Conditions Ambient air temp.

50 °C 35 °C

Ground temp. Depth of Laying

0.50 m

Thermal resistivity of Soil

1.2 K.m/W

41 MKK XXS002-02/01-12-2014

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