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

TABLE - 51

CURRENT RATINGS & VOLTAGE DROP OF THE CABLES - 600/1000 V Two Core Aluminium, 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

16

50

52

73

60

4.60

25

64

66

94

77

2.89

35

78

80

114

92

2.09

50

96

97

134

110

1.55

70

121

124

167

136

1.08

95

149

152

200

163

0.786

120

172

172

219

191

0.628

150

197

197

251

211

0.520

185

226

226

287

242

0.425

240

267

267

334

277

0.339

300

299

299

371

307

0.287

400

344

344

402

351

0.243

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

44 MKK XXS002-02/01-12-2014

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