Technical Information Power And Control Cables Power Appendixes General Electrical Data of Cables PVC Insulated Page PVC Insulated
Electrical (AC Resistance , Reactance , Capacitance ) of MV Cables
PVC Insulated , 1.8/3 kV
|
Conductor size (mm2) |
Single-core cables 1) |
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|
AC resistance @ 90oC |
Reactance (50 Hz) |
Capacitance 1) |
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|
Copper |
Aluminium |
Trefoil |
Flat 2) |
Copper |
Aluminium |
|
|
(Ohm/km) |
(Ohm/km) |
(Ohm/km) |
(Ohm/km) |
(microF/km) |
(microF/km) |
|
|
50 |
0.464 |
0.771 |
0.115 |
0.173 |
0.86 |
0.77 |
|
70 |
0.321 |
0.533 |
0.109 |
0.167 |
1.00 |
0.89 |
|
95 |
0.232 |
0.385 |
0.107 |
0.165 |
1.08 |
0.96 |
|
120 |
0.185 |
0.305 |
0.102 |
0.160 |
1.20 |
1.05 |
|
150 |
0.149 |
0.248 |
0.099 |
0.157 |
1.30 |
1.15 |
|
185 |
0.120 |
0.198 |
0.096 |
0.154 |
1.44 |
1.26 |
|
240 |
0.0929 |
0.152 |
0.093 |
0.151 |
1.62 |
1.41 |
|
300 |
0.0752 |
0.122 |
0.091 |
0.149 |
1.69 |
1.48 |
|
400 |
0.0600 |
|
0.091 |
0.149 |
1.71 |
|
|
500 |
0.0484 |
|
0.089 |
0.147 |
1.81 |
|
|
630 |
0.0398 |
|
0.086 |
0.144 |
2.03 |
|
|
800 |
0.0334 |
|
0.086 |
0.137 |
2.17 |
|
|
1000 |
0.0290 |
|
0.084 |
0.142 |
2.32 |
|
Note (1) : Not applicable to non armoured cables
Note (2) : Twice cable diameter spacing between cores
|
Conductor size (mm2) |
3-core cables |
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|
AC resistance @ 90oC |
Reactance |
Capacitance |
|||
|
Copper |
Aluminium |
(50 Hz) |
Copper |
Aluminium |
|
|
(Ohm/km) |
(Ohm/km) |
(Ohm/km) |
(microF/km) |
(microF/km) |
|
|
16 |
1.380 |
2.29 |
0.107 |
0.54 |
0.50 |
|
25 |
0.870 |
1.44 |
0.097 |
0.65 |
0.57 |
|
35 |
0.627 |
1.04 |
0.094 |
0.71 |
0.64 |
|
50 |
0.464 |
0.770 |
0.090 |
0.78 |
0.70 |
|
70 |
0.321 |
0.533 |
0.086 |
0.90 |
0.80 |
|
95 |
0.232 |
0.385 |
0.082 |
1.01 |
0.91 |
|
120 |
0.184 |
0.305 |
0.080 |
1.10 |
0.97 |
|
150 |
0.150 |
0.248 |
0.079 |
1.20 |
1.06 |
|
185 |
0.121 |
0.198 |
0.077 |
1.32 |
1.16 |
|
240 |
0.0929 |
0.152 |
0.075 |
1.45 |
1.27 |
|
300 |
0.0752 |
0.122 |
0.075 |
1.50 |
1.32 |
|
400 |
0.0604 |
|
0.074 |
1.58 |
|
