Answer Posted / rajkumar mohan

For simple easy remembering...

Make ur own excel sheet as per below
(its strictly not a technical way)

for Eg:for breakers 10-100 dive the breaker value with 4.5 you will get some value go to thte next cable size

10A

10/4.5 =2.2sq.mm
go to 2.5 sq.mm
--------------------------

you can use this formula till you are familiar with the cable sizes (Y)

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