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How to calculate the size of the cable? for exp i want to
use the load of 10HP
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Answer Posted / santosh
Sqmm of cable depends upon the cable material.In thumb rule Cu cable can carry 10-12 times of its rated sqmm.For ex 10 sqmm cu cable carry 100-120 amps.Al cable carry 4 times current of its rated sqmm
For ur problem: 13A is rated current. 50-60 amp staring current,7-8 running cu.So u may need 4 sqmm Al cable or 2.5 sqmm cu cable.
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