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
|
Direct buried in ground
|
[A]
|
524
|
592
|
671
|
762
|
878
|
965
|
1119
|
1198
|
1357
|
1475
|
Buried in duct
|
[A]
|
491
|
556
|
631
|
714
|
808
|
928
|
1075
|
1146
|
1352
|
1468
|
In free air
|
Trefoil formation
|
[A]
|
598
|
682
|
781
|
894
|
1023
|
1150
|
1361
|
1460
|
1654
|
1800
|
Flat formation
|
[A]
|
671
|
770
|
888
|
1025
|
1187
|
1355
|
1615
|
1745
|
2030
|
2273
|
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
|
1.0
|
11.0
|
1.0
|
1.6
|
3.5
|
69
|
5.5
|
0.0754
|
0.20
|
300
|
CC
|
20.4
|
1.0
|
11.0
|
1.0
|
1.6
|
3.5
|
72
|
6.3
|
0.0601
|
0.22
|
400
|
CC
|
23.2
|
1.0
|
11.0
|
1.0
|
1.7
|
3.5
|
75
|
7.2
|
0.0470
|
0.23
|
500
|
CC
|
26.3
|
1.0
|
11.0
|
1.0
|
1.8
|
4.0
|
79
|
8.6
|
0.0366
|
0.25
|
630
|
CC
|
30.2
|
1.0
|
11.0
|
1.0
|
1.8
|
4.0
|
83
|
10.1
|
0.0283
|
0.28
|
800
|
CC
|
34.0
|
1.0
|
11.0
|
1.0
|
1.9
|
4.0
|
87
|
12.0
|
0.0221
|
0.30
|
1000
|
4S
|
38.7
|
1.0
|
11.0
|
1.0
|
2.0
|
4.0
|
92
|
14.4
|
0.0176
|
0.33
|
1200
|
4S
|
41.8
|
1.0
|
11.0
|
1.0
|
2.1
|
4.5
|
98
|
16.7
|
0.0151
|
0.35
|
1600
|
4S
|
48.3
|
1.0
|
11.0
|
1.0
|
2.2
|
4.5
|
105
|
20.9
|
0.0113
|
0.39
|
2000
|
5S
|
54.3
|
1.0
|
11.0
|
1.0
|
2.4
|
4.5
|
112
|
25.4
|
0.0090
|
0.43
|
CC : Compact circular stranded 4S : Four-segment stranded (miliken) 5S : Five-segment stranded (miliken)