Design & Construction
1.Conductor
2.Conductor screen
3.XLPE insulation
4.Insulation screen
5.Semiconducting tape
6.Aluminum corrugated 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
|
667
|
758
|
860
|
961
|
1109
|
1187
|
1338
|
1458
|
1538 |
Buried in duct
|
[A]
|
491
|
550
|
639
|
725
|
821
|
915
|
1057
|
1180
|
1332
|
1447
|
1526 |
In free air
|
Trefoil formation
|
[A]
|
592
|
677
|
775
|
889
|
1020
|
1147
|
1346
|
1451
|
1635
|
1787
|
1885 |
Flat formation
|
[A]
|
657
|
755
|
873
|
1006
|
1169
|
1333
|
1581
|
1717
|
1995
|
2236
|
2358 |
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
|
1.7
|
3.5
|
76
|
6.3
|
0.0754
|
0.17
|
300
|
CC
|
20.4
|
1.2
|
14.0
|
1.0
|
1.8
|
3.5
|
78
|
7.0
|
0.0601
|
0.18
|
400
|
CC
|
23.2
|
1.2
|
14.0
|
1.0
|
1.8
|
3.5
|
81
|
8.0
|
0.0470
|
0.20
|
500
|
CC
|
26.3
|
1.2
|
14.0
|
1.0
|
1.9
|
4.0
|
86
|
9.3
|
0.0366
|
0.21
|
630
|
CC
|
30.2
|
1.2
|
14.0
|
1.0
|
2.0
|
4.0
|
90
|
11.0
|
0.0283
|
0.23
|
800
|
CC
|
34.0
|
1.2
|
14.0
|
1.0
|
2.0
|
4.0
|
94
|
12.9
|
0.0221
|
0.25
|
1000
|
4S
|
38.7
|
1.2
|
14.0
|
1.0
|
2.1
|
4.0
|
99
|
15.4
|
0.0176
|
0.28
|
1200
|
4S
|
41.8
|
1.2
|
14.0
|
1.0
|
2.2
|
4.5
|
104
|
17.7
|
0.0151
|
0.30
|
1600
|
4S
|
48.3
|
1.2
|
14.0
|
1.0
|
2.4
|
4.5
|
111
|
22.1
|
0.0113
|
0.33
|
2000
|
5S
|
54.3
|
1.2
|
14.0
|
1.0
|
2.5
|
4.5
|
118
|
26.5
|
0.0090
|
0.36
|
2500
|
5S
|
62.0
|
1.2
|
14.0
|
1.0
|
2.6
|
4.5
|
128
|
33.0
|
0.0072
|
0.40
|
CC : Compact circular stranded 4S : Four-segment stranded (miliken) 5S : Five-segment stranded (miliken)