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

TABLE - 50

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

In Air

In Ground

I n Duct

“Approx Voltage drop of 3 Single core cables

Area

Single Core in Trefoil

Single Core in Trefoil

Single Core in Trefoil

Unarmoured Armoured

Armoured

Armoured

Trefoil

mm²

A

A

A

A

V/A/km

16

52

52

69

65

4.00

25

69

69

90

85

2.50

35

86

86

105

102

1.80

50

92

94

123

123

1.35

70

117

119

150

150

0.94

95

144

146

181

178

0.691

120

168

170

206

202

0.558

150

193

194

230

224

0.464

185

224

226

261

245

0.383

240

268

267

302

278

0.31

300

311

307

339

307

0.265

400

357

357

340

347

0.23

500

394

394

361

393

0.21

630

447

447

410

447

0.185

800

505

505

463

506

0.173

1000

568

568

520

567

0.163

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

43 MKK XXS002-02/01-12-2014

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