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sir,
how to select the cable size, what is the parameters use
ang what is the formulas use for this cable size
calculations. please tell me.
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Answer Posted / amarnath
To select the cable size we need to know the ampere rating
of the load and normally 1 sq.mm of Aluminium cable can
carry upto 1.2Amp and 1 sq.mm of Copper cable can carry
4.3Amp of Current but we should also consider the voltage
drop when the load is far away using the formula
VD=2KIL/cable size in CM
where VD is Voltage drop, K is the losses normally 12 for
copper and 19 for aluminium, L is the length from the
source to the load and CM is centimiles 1sq.mm in centimil
is 1943.5252.
| Is This Answer Correct ? | 25 Yes | 1 No |
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