Design & Construction
1.Conductor
2.Conductor screen
3.XLPE insulation
4.Insulation screen
5.Semiconducting tape
6.Lead 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
|
Direct buried in ground
|
[A]
|
527
|
597
|
681
|
776
|
884
|
994
|
1153
|
1242
|
1417
|
1556
|
Buried in duct
|
[A]
|
480
|
543
|
619
|
709
|
812
|
913
|
1063
|
1144
|
1310
|
1443
|
In free air
|
Trefoil formation
|
[A]
|
599
|
685
|
792
|
912
|
1051
|
1191
|
1420
|
1538
|
1771
|
1953
|
Flat formation
|
[A]
|
677
|
778
|
903
|
1046
|
1218
|
1396
|
1658
|
1806
|
2116
|
2379
|
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 lead sheath
|
Nominal Thickness of Outer sheath
|
Approx. Overall diameter of cable
|
Approx. Weight of cable
|
Maximum DC resistance at 20 C
|
Capacitance
|
mm²
|
|
mm
|
mm
|
mm
|
mm
|
mm
|
mm
|
mm
|
kg/m
|
Ω/km
|
µF/km
|
240
|
CC
|
18.1
|
1.0
|
11.0
|
1.0
|
1.6
|
3.5
|
61
|
7.3
|
0.0754
|
0.20
|
300
|
CC
|
20.4
|
1.0
|
11.0
|
1.0
|
1.6
|
3.5
|
64
|
8.1
|
0.0601
|
0.22
|
400
|
CC
|
23.2
|
1.0
|
11.0
|
1.0
|
1.6
|
3.5
|
66
|
9.1
|
0.0470
|
0.23
|
500
|
CC
|
26.3
|
1.0
|
11.0
|
1.0
|
1.6
|
4.0
|
71
|
10.6
|
0.0366
|
0.25
|
630
|
CC
|
30.2
|
1.0
|
11.0
|
1.0
|
1.6
|
4.0
|
74
|
12.3
|
0.0283
|
0.28
|
800
|
CC
|
34.0
|
1.0
|
11.0
|
1.0
|
1.7
|
4.0
|
78
|
14.6
|
0.0221
|
0.30
|
1000
|
4S
|
38.7
|
1.0
|
11.0
|
1.0
|
1.7
|
4.0
|
83
|
17.2
|
0.0176
|
0.33
|
1200
|
4S
|
41.8
|
1.0
|
11.0
|
1.0
|
1.8
|
4.5
|
87
|
19.4
|
0.0151
|
0.35
|
1600
|
4S
|
48.3
|
1.0
|
11.0
|
1.0
|
1.8
|
4.5
|
94
|
23.8
|
0.0113
|
0.39
|
2000
|
5S
|
54.3
|
1.0
|
11.0
|
1.0
|
1.9
|
4.5
|
100
|
28.5
|
0.0090
|
0.43
|
CC : Compact circular stranded 4S : Four-segment stranded (miliken) 5S : Five-segment stranded (miliken)