I am pretty much done converting my shop to vintage machinery of which almost all is three phase. I will be running a 20HP RPC, with the three phase output feeding a load center. I wired the existing shop...installed the meter pedestal, load center, branch circuits, etc. I will be doing this work also.
I will be running THWN/THHN in surface mounted EMT.
Questions I have that I would like confirmed:
1. Are conduit fill rules the same for 3 phase?
2. Are ampacity ratings the same also?
3. Black red blue wire with 3 phase?
My machines:
Machine HP Amps @ 220V Oliver 88-DX 5 13 Woods Jointer 7.5 21 Oliver 399 Planer 3 8.6 Greenlee Mortiser 1.5 4.2 Fay & Egan 345 5 14.2 State OSS 1/2 2.2 Delta 12' Disc Sander ? ? Blount Lathe 2 ?
So just the Woods jointer needs #10 AWG, the rest 12. I was thinking of running the the bigger machines (jointer, Oliver 88, and F&E 345) off a 30A circuit, and the rest off a 20A circuit. My 3 phase load center is 125A and has four curcuits, so I will have some expansion if needed.
Thanks1