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How to calculat size of copper & aluminium ?

Answer Posted / rvg

For calculating cable size,for a specific load current,
following facts to be considered:

1.Maximum load current.
2.under ground or overhead laying
3.max. temperature withstanding capability of cable insulation.
4.max. voltage stress withstanding capability of cable
insulation.
5. distance of load from the power supply
6. AC/DC supply and frequency .

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