crossman
Senior Member
- Location
- Southeast Texas
One of the EGC threads spurred my interest, and I am trying to gain a better understanding of the following:
We have a large AC 60hz source, 480Y/277. (In the diagram, I am showing only one phase and the neutral.)
We have 400 feet of 500 kcmil copper wire, in the first diagram, it is run for 200 feet in PVC, then it loops back and connects to the neutral terminal. This is a direct short from phase to neutral.
In the second diagram, same thing, but the neutral side of the wire is not in the conduit, and is routed completely away from the PVC. Any thoughts on "in the ballpark" current levels for the two arrangements? Would there be any differences in the current from diagram 1 to diagram 2?
We have a large AC 60hz source, 480Y/277. (In the diagram, I am showing only one phase and the neutral.)
We have 400 feet of 500 kcmil copper wire, in the first diagram, it is run for 200 feet in PVC, then it loops back and connects to the neutral terminal. This is a direct short from phase to neutral.
In the second diagram, same thing, but the neutral side of the wire is not in the conduit, and is routed completely away from the PVC. Any thoughts on "in the ballpark" current levels for the two arrangements? Would there be any differences in the current from diagram 1 to diagram 2?