John Morris
Lifetime Supporting Member
So Good Morning to all
480 volts/60/ 3 phase, referencing one phase of three phase system but applies to all three. This particular system has a theoretical I of 95 amps
Being in industry for 30 some odd years my experience tells me that if you take two 6 awg (75 amps each) wires ( together equalling the cross section of a 3 awg ) that you can apply the amperage of a 3 awg (110 amps @ a T of 90C) safely to the system.
My genius mechanical engineer has nothing better to do on a Sunday than argue with me on this.
But just to error on the side of cautious arrogance, Please advise me how far off I am on my calculations.
Your time and consideration are greatly appreciated
Thank you
480 volts/60/ 3 phase, referencing one phase of three phase system but applies to all three. This particular system has a theoretical I of 95 amps
Being in industry for 30 some odd years my experience tells me that if you take two 6 awg (75 amps each) wires ( together equalling the cross section of a 3 awg ) that you can apply the amperage of a 3 awg (110 amps @ a T of 90C) safely to the system.
My genius mechanical engineer has nothing better to do on a Sunday than argue with me on this.
But just to error on the side of cautious arrogance, Please advise me how far off I am on my calculations.
Your time and consideration are greatly appreciated
Thank you