Armoured Three Core Cable Conductor

Nominal cross sectional area

Nominal thickness of Instulation

Minimum thickness of Inner sheth

ARMOUR 

Nominal thickness of Outer Sheath

Approx overall diameter

Approx weight of cable

Max. DC conductor resistance at 20ºC

CURRENT RATINGS 

Main Sq.mm

Neutral Sq.mm

Main  mm

Neutral mm

mm

Galv. Flat steel strip Nominal thickness  mm

mm

mm

kg/mm

Main ohm/km

Neutral ohm/km

Direct in Ground Amps

In Duct Amps

In Air Amps

25

16

1.2

1.0

0.3

0.8

2.0

25.8

1048

1.20

1.91

76

63

70

35

16

1.2

1.0

0.3

0.8

2.0

28.1

1221

0.868

1.91

92

77

86

50

25

1.4

1.2

0.3

0.8

2.2

31.4

1529

0.641

1.20

100

95

105

70

35

1.4

1.2

0.4

0.8

2.2

35.2

1892

0.443

0.868

135

115

130

95

50

1.6

1.4

0.4

0.8

2.2

38.9

2349

0.320

0.641

165

140

155

120

70

1.6

1.4

0.4

0.8

2.4

42.7

2802

0.253

0.433

185

155

180

150

70

1.8

1.4

0.5

0.8

2.6

46.1

3276

0.206

0.433

210

175

205

185

95

2.0

1.6

0.5

0.8

2.6

49.6

3916

0.164

0.320

235

200

240

240

120

2.2

1.6

0.6

0.8

3.0

58.3

5045

0.125

0.253

275

235

280

300

150

2.4

1.8

0.6

0.8

3.2

64.2

6055

0.100

0.206

305

260

315

400

185

2.6

2.0

0.7

0.8

3.4

71.6

6574

0.0778

0.164

335

290

375

500

240

3.0

2.2

0.7

0.8

3.8

79.4

9380

0.0617

0.125

350

310

410

630

300

3.4

2.4

0.7

0.8

4.0

91.9

11747

0.0478

0.100

365

325

455