Design & Construction
1.Conductor
2.Conductor screen
3.XLPE insulation
4.Insulation screen
5.Semiconducting tape
6.Smooth aluminum sheath
7.PE or PVC outer sheath (Graphite coating or extruded semiconducting)
Application
Used for underground power transmission lines; laid on cable ladder, tray, buried direct in the ground or in duct in the ground

CURRENT RATING, SINGLE CIRCUIT
Nominal area
|
[mm²]
|
240
|
300
|
400
|
500
|
630
|
800
|
1000
|
1200
|
1600
|
2000
|
2500 |
Direct buried in ground
|
[A]
|
520
|
587
|
668
|
759
|
861
|
963
|
1106
|
1185
|
1333
|
1447
|
1556 |
Buried in duct
|
[A]
|
479
|
540
|
616
|
700
|
796
|
894
|
1025
|
1102
|
1243
|
1353
|
1458 |
In free air
|
Trefoil formation
|
[A]
|
585
|
665
|
763
|
871
|
992
|
1109
|
1287
|
1337
|
1541
|
1663
|
1781 |
Flat formation
|
[A]
|
659
|
755
|
874
|
1010
|
1170
|
1336
|
1573
|
1707
|
1981
|
2208
|
2456 |
TECHNICAL DATA
Nominal cross- sectional area
|
Shape of conductor
|
Nominal Diameter of conductor
|
Nominal Thickness of conductor screen
|
Nominal Thickness of Insulation
|
Nominal Thickness of Insulation screen
|
Nominal Thickness of aluminum sheath
|
Nominal Thickness of Outer sheath
|
Approx. Overall diameter of cable
|
Approx. Weight of cable
|
Maximum DC resistance at 20oC
|
Capacitance
|
mm²
|
|
mm
|
mm
|
mm
|
mm
|
mm
|
mm
|
mm
|
kg/m
|
Ω/km
|
µF/km
|
240
|
CC
|
18.1
|
1.2
|
14.0
|
1.0
|
1.3
|
3.5
|
62
|
5.0
|
0.0754
|
0.17
|
300
|
CC
|
20.4
|
1.2
|
14.0
|
1.0
|
1.3
|
3.5
|
64
|
5.7
|
0.0601
|
0.18
|
400
|
CC
|
23.2
|
1.2
|
14.0
|
1.0
|
1.3
|
3.5
|
67
|
6.6
|
0.0470
|
0.20
|
500
|
CC
|
26.3
|
1.2
|
14.0
|
1.0
|
1.3
|
4.0
|
71
|
8.0
|
0.0366
|
0.21
|
630
|
CC
|
30.2
|
1.2
|
14.0
|
1.0
|
1.3
|
4.0
|
75
|
9.5
|
0.0283
|
0.23
|
800
|
CC
|
34.0
|
1.2
|
14.0
|
1.0
|
1.3
|
4.0
|
79
|
11.4
|
0.0221
|
0.25
|
1000
|
4S
|
38.7
|
1.2
|
14.0
|
1.0
|
1.3
|
4.0
|
83
|
13.6
|
0.0176
|
0.28
|
1200
|
4S
|
41.8
|
1.2
|
14.0
|
1.0
|
1.3
|
4.5
|
87
|
15.5
|
0.0151
|
0.30
|
1600
|
4S
|
48.3
|
1.2
|
14.0
|
1.0
|
1.3
|
4.5
|
94
|
19.6
|
0.0113
|
0.33
|
2000
|
5S
|
54.3
|
1.2
|
14.0
|
1.0
|
1.3
|
4.5
|
100
|
23.7
|
0.0090
|
0.36
|
2500
|
5S |
62.0 |
1.2 |
14.0 |
1.0 |
1.3 |
4.5 |
114 |
29.5 |
0.0072 |
0.40 |
CC : Compact circular stranded 4S : Four-segment stranded (miliken) 5S : Five-segment stranded (miliken)