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Cable Losses |
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Voltage drop per. cable = Current in amps x cable factor x length in
metres |
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Area sq mm |
.078 |
.196 |
.22 |
.5 |
.75 |
1.0 |
1.5 |
2.5 |
4.0 |
6.0 |
10.0 |
16.0 |
25.0 |
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Cable Size |
10/.1 |
1/.5 |
7/.2 |
16/.2 |
24/.2 |
30/.25 |
30/.25 |
50/.25 |
56/.36 |
84/.3 |
80/.4 |
126/.4 |
196/.4 |
|
Cable factor |
.242 |
.096 |
.085 |
.037 |
.025 |
.0185 |
.0127 |
.0076 |
.0047 |
.0032 |
.0019 |
.0012 |
.0008 |
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. |
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Example : 30 amp transformer,
16sq mm cable, 20 metres long |
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Voltage drop in each cable = 30 x 0.0012 x 20 = 0.72 volts |
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