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CABLE TYPE
Al-XLPE/PVC self supported 10, 20 and 30 kV
Al-XLPE/PVC self supported 12/20
kV
CONSTRUCTION |
|
3 x 35 |
3 x 50 |
3 x 70 |
3 x 95 |
3 x 120 |
3 x 150 |
| PHASE CONDUCTOR |
Conductor area |
mm2 |
35 |
50 |
70 |
95 |
120 |
150 |
Conductor
diameter |
mm |
7.1 |
8.4 |
10.0 |
11.8 |
12.9 |
14.6 |
Insulation
thickness |
mm |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
Diameter over
isolation |
mm |
18.9 |
20.2 |
21.8 |
23.6 |
24.7 |
26.4 |
Metallic
screen area |
mm2 |
16 |
16 |
16 |
16 |
16 |
16 |
Outer sheath
thickness |
mm |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
| Cable diameter (approx. ) |
mm |
26 |
28 |
29 |
31 |
32 |
34 |
MESSENGER |
|
|
|
|
|
|
|
Conductor area |
mm2 |
50 |
50 |
50 |
50 |
50 |
50 |
Steel strand
diameter |
mm |
9.0 |
9.0 |
9.0 |
9.0 |
9.0 |
9.0 |
Outer sheath
thickness |
mm |
1.2 |
1.2 |
1.2 |
1.2 |
1.2 |
1.2 |
Messenger
diameter |
mm |
11.4 |
11.4 |
11.4 |
11.4 |
11.4 |
11.4 |
| OVERHEAD NETWORK CABLE |
| Overall diameter |
mm |
64 |
66 |
69 |
73 |
75 |
78 |
| Weight ( XHP ) |
kg/km |
2725 |
2950 |
3275 |
3635 |
3985 |
4360 |
| Weight ( XHE ) |
kg/km |
2520 |
2730 |
3040 |
3390 |
3730 |
4090 |
| ELECTRICAL PROPERTIES |
Conductor
resistance at 20°C (dc) |
Ohm/km |
0.868 |
0.641 |
0.443 |
0.320 |
0.253 |
0.206 |
Conductor
resistance at 90°C (ac) |
Ohm/km |
1.113 |
0.822 |
0.568 |
0.411 |
0.325 |
0.264 |
Capacitance of
cable |
mF/km |
0.147 |
0.162 |
0.182 |
0.204 |
0.217 |
0.237 |
Inductance of
cable |
mH/km |
0.448 |
0.422 |
0.402 |
0.382 |
0.370 |
0.352 |
| Current carrying capacity for
overhead network cable directly exposed to solar radiation ( 30 °C ) |
A |
150 |
179 |
220 |
267 |
305 |
345 |
| Short-circuit current (1 sec ) |
kA |
3.2 |
4.7 |
6.6 |
9.0 |
11.4 |
14.1 |
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