ptonsparky
Tom
- Occupation
- EC - retired
Background:
Two years ago we pulled 1/0 1/0 1/0 2 urd in 2" DB from a building that houses the Service Entrance equipment, Generator, 400A transfer switch and tranformers for a customer. The feeder goes to a small building that with a single 480v 30 hp VFD More than ample for an additional small 480v load.
Now. Add 30 HP motor 100' further out. Installed 200 amp disconnect at start of feeder, 150 A fusing and tap wires at that point. Install 200 Amp terminal box on outside of small building, and from this TB extend raceway another 100' to new load.
My intent was to use the same 1/0 that we had used before. For whatever reason they, my help, dropped the size to 2-2-2-4 from TB on out to new motor Pump Panel. I feel they violate the tap rules by doing it this way. My suggestion was that unless they can come up with a way around it, some Saturday of their choice, they pull in the 1/0. Outside Feeder is my only thought. Comments?
Two years ago we pulled 1/0 1/0 1/0 2 urd in 2" DB from a building that houses the Service Entrance equipment, Generator, 400A transfer switch and tranformers for a customer. The feeder goes to a small building that with a single 480v 30 hp VFD More than ample for an additional small 480v load.
Now. Add 30 HP motor 100' further out. Installed 200 amp disconnect at start of feeder, 150 A fusing and tap wires at that point. Install 200 Amp terminal box on outside of small building, and from this TB extend raceway another 100' to new load.
My intent was to use the same 1/0 that we had used before. For whatever reason they, my help, dropped the size to 2-2-2-4 from TB on out to new motor Pump Panel. I feel they violate the tap rules by doing it this way. My suggestion was that unless they can come up with a way around it, some Saturday of their choice, they pull in the 1/0. Outside Feeder is my only thought. Comments?
