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CABLE TYPE
Al-XLPE/PVC self supported 10, 20 and 30 kV
Al-XLPE/PVC self supported 20/35
kV
CONSTRUCTION |
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3 x 50 |
3 x 70 |
3 x 95 |
3 x 120 |
3 x 150 |
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PHASE
CONDUCTOR |
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Conductor area |
mm2 |
50 |
70 |
95 |
120 |
150 |
Conductor
diameter |
mm |
8.4 |
10.0 |
11.8 |
12.9 |
14.6 |
Insulation
thickness |
mm |
8.0 |
8.0 |
8.0 |
8.0 |
8.0 |
Diameter over
isolation |
mm |
25.2 |
26.8 |
28.6 |
29.7 |
31.4 |
Metallic
screen area |
mm2 |
16 |
16 |
16 |
16 |
16 |
Outer sheath
thickness |
mm |
2.0 |
2.0 |
2.2 |
2.2 |
2.2 |
| Cable diameter (approx. ) |
mm |
33 |
34 |
36 |
37 |
39 |
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MESSENGER |
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Conductor area |
mm2 |
50 |
50 |
50 |
50 |
50 |
Steel strand
diameter |
mm |
9.0 |
9.0 |
9.0 |
9.0 |
9.0 |
Outer sheath
thickness |
mm |
1.2 |
1.2 |
1.2 |
1.2 |
1.2 |
Messenger
diameter |
mm |
11.4 |
11.4 |
11.4 |
11.4 |
11.4 |
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| OVERHEAD NETWORK CABLE |
| Overall diameter |
mm |
76 |
79 |
84 |
86 |
89 |
| Weight ( XHP ) |
kg/km |
3645 |
4005 |
4505 |
4880 |
5295 |
| Weight ( XHE ) |
kg/km |
3385 |
3730 |
4190 |
4555 |
4955 |
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| ELECTRICAL PROPERTIES |
Conductor
resistance at 20°C (dc) |
Ohm/km |
0.641 |
0.443 |
0.320 |
0.253 |
0.206 |
Conductor
resistance at 90°C (ac) |
Ohm/km |
0.822 |
0.568 |
0.411 |
0.325 |
0.264 |
Capacitance of
cable |
mF/km |
0.118 |
0.131 |
0.144 |
0.153 |
0.165 |
Inductance of
cable |
mH/km |
0.474 |
0.445 |
0.423 |
0.410 |
0.395 |
| Current carrying capacity for
overhead network cable directly exposed to solar radiation ( 30 °C ) |
A |
179 |
220 |
267 |
305 |
345 |
| Short-circuit current (1 sec ) |
kA |
4.7 |
6.6 |
9.0 |
11.4 |
14.1 |
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