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

TABLE - 46

CURRENT RATINGS & VOLTAGE DROP OF THE CABLES - 600/1000 V 3 and 4 Core, Aluminium, XLPE 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

63

63

78

64

4.25

25

79

83

100

82

2.67

35

97

101

120

97

1.93

50

118

122

142

116

1.43

70

150

154

175

144

0.994

95

185

190

210

173

0.723

120

216

221

239

198

0.578

150

247

253

267

223

0.476

185

287

293

304

253

0.388

240

342

346

352

294

0.308

300

395

396

396

332

0.258

400

420

420

428

357

0.216

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

39 MKK XXS002-02/01-12-2014

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