Is there any thumb rule for cable selection for any current rating ?

Is there any thumb rule for cable selection for any current
rating ?

Question Posted / aeibal

Is there any thumb rule for cable selection for any current rating ?..

Answer / subhendu

Normally by thumb rule we can take, for Al cable it is 1.5 times(Amp) of its sq mm size, and in copper cable it is 2.5 times .

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