Cables | Cables used in mining industry

Power Cables for Mines
1

3.8/6.6 kV

 
 
1

Application
This specification covers the construction and test procedures of PVC insulated, steel wire armoured and PVC material used for inner and outer jacket providing flame - retardant property.

General Structure
Steel armouring is used for mechanical protection and also as grounding wire in cable.

Construction
1.Stranded copper conductor
2. PVC insulation
3. Semi-conductive tape
4. Copper tape screen
5. Filler
6. Inner sheath
7. Separation tape
8. Galvanized round steel wire
9. Separation sheath
10. Galvanized round steel wire
11. Galvanized steel binding tape
12. PVC outer sheath
Three Cores Double Layer Armoured Conductive Sheated 3800/6600 V Cables
Conductor Cross - Section
Inner Sheath Thickness
Overall Diameter of Inner Sheath
Diameter of Armour Wire
Number of Copper Armour Wire
Thickness of Sheath
App. Overall Diameter
Current Capacity
Rezistence of Armour

mm 2

mm

mm

mm

mm

mm
Amp
ohm

16

1.4

31.0

1.6

-

2.1

44.0

94

1.530

25

1.8

35.0

2.0

-

2.2

49.4

125

0.969

35

1.8

37.5

2.0

-

2.3

52.3

150

0.699

50

1.8

36.0

2.0

-

2.4

51.2

175

0.516

70

1.8

39.5

2.0

2

2.5

54.5

220

0.357

95

2.2

43.5

2.5

2

2.6

60.8

265

0.257

120

2.2

46.0

2.5

5

2.7

63.7

305

0.204

150

2.2

49.0

2.5

9

2.8

66.6

345

0.165

185

2.6

53.0

2.5

15

2.9

70.8

390

0.132

Three Cores Single Layer Armoured Conductive Sheated 3800/6600 V Cables
Conductor Cross - Section
Inner Sheath Thickness
Overall Diameter of Inner Sheath
Diameter of Armour Wire
Number of Copper Armour Wire
Thickness of Sheath
App. Overall Diameter
Current Capacity
Rezistence of Armour

mm 2

mm

mm

mm

mm

mm
Amp
ohm

16

1.4

31.0

1.6

0

2.0

39.6

94

1.920

25

1.8

35.0

2.0

0

2.1

44.2

125

1.210

35

1.8

37.5

2.0

0

2.2

47.1

150

0.873

50

1.8

36.0

2.0

3

2.2

45.8

175

0.645

70

1.8

39.5

2.0

7

2.3

49.1

220

0.447

95

2.2

43.5

2.5

7

2.5

54.6

265

0.322

120

2.2

46.0

2.5

10

2.6

57.5

305

0.255

150

2.2

49.0

2.5

13

2.7

60.2

345

0.207

185

2.6

53.0

2.5

18

2.8

64.6

390

0.165