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

TABLE - 44

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

In Air

In Ground

I n Duct

Approx Voltage drop of 3 Single core cables (3 Phase System)

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

72

72

84

79

4.25

25

94

94

109

103

2.68

35

118

118

127

123

1.93

50

129

135

152

153

1.44

70

165

172

187

186

1.00

95

204

211

224

219

0.733

120

237

245

255

248

0.587

150

274

282

285

271

0.490

185

319

325

322

301

0.402

240

381

385

372

341

0.324

300

442

441

418

377

0.276

400

535

526

481

415

0.236

500

619

595

534

451

0.209

630

713

672

589

485

0.188

800

833

760

649

520

0.175

1000

956

843

706

559

0.166

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

37 MKK XXS002-02/01-12-2014

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