mally
Mechanical
- Apr 25, 2002
- 2
This will be a bit basic to some I know, but here goes.
Using ohms law in calculating single phase, I would do the following:
I=P/V
eg = I=2000/240 = 8.3 amps,
However in three phase do you do the same ie.
I=P/V
eg I = 5000/415 = 12 amps
When sizing a circuit breaker for the last calc would you use the 12 amps in total or 12 amps per phase, totalling to a 36 amp figure to size with?
Thanks in advance
Mal
Using ohms law in calculating single phase, I would do the following:
I=P/V
eg = I=2000/240 = 8.3 amps,
However in three phase do you do the same ie.
I=P/V
eg I = 5000/415 = 12 amps
When sizing a circuit breaker for the last calc would you use the 12 amps in total or 12 amps per phase, totalling to a 36 amp figure to size with?
Thanks in advance
Mal