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

TABLE - 52

CURRENT RATINGS & VOLTAGE DROP OF THE CABLES - 600/1000 V 3 and 4 Core, Aluminium, PVC insulated Armoured/Unarmoured Cables.

Approx Voltage Drop (3 Phase System)

Area

In Air

In Ground

I n Duct

Unarmoured Armoured

Armoured

Armoured

Trefoil

mm²

A

A

A

A

V/A/km

16

42

44

62

50

4.0

25

56

57

80

65

2.5

35

68

70

96

78

1.8

50

83

86

114

93

1.3

70

106

108

141

115

0.934

95

131

134

170

139

0.681

120

151

155

194

159

0.544

150

174

177

218

178

0.450

185

200

205

247

203

0.368

240

239

245

288

238

0.294

300

276

282

326

270

0.249

400

308

308

353

286

0.210

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

45 MKK XXS002-02/01-12-2014

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