BackCountry
Electrician
- Location
- Southern California
- Occupation
- Licensed Electrician and General Contractor
I want to make sure I have the outdoor feeder tap rule down correctly:
I’ve got an existing 400a panel with 60a, 100a and 200a OCPD’s feeding a house and a well. The 400a panel is outdoor on a panel board. The 200a and 100a panels are inside of a residence, with conduit coming up out of the slab directly into the panels, all of which have a main breaker. The 60a well panel is outdoors and has a main breaker also.
We are installing a BESS and PV with a transfer switch rated at 200a — if I’m reading this right, I believe I can simply intercept the existing 200a feeder, direct that to our transfer switch, and then the load side of the transfer switch can be Polaris tapped to all three loads (60, 100 and 200a) and no backup loads panel would be required.
Let me know if I’m reading that right. The outdoor tap rule requiring that the main breaker be as close as possible to the entrance is the only question, the conduit goes right into each panel stubbed out of the slab. And they’d all be downstream of the 200a OCPD, with only the 100a and 60a conductors being undersized.
I’ve got an existing 400a panel with 60a, 100a and 200a OCPD’s feeding a house and a well. The 400a panel is outdoor on a panel board. The 200a and 100a panels are inside of a residence, with conduit coming up out of the slab directly into the panels, all of which have a main breaker. The 60a well panel is outdoors and has a main breaker also.
We are installing a BESS and PV with a transfer switch rated at 200a — if I’m reading this right, I believe I can simply intercept the existing 200a feeder, direct that to our transfer switch, and then the load side of the transfer switch can be Polaris tapped to all three loads (60, 100 and 200a) and no backup loads panel would be required.
Let me know if I’m reading that right. The outdoor tap rule requiring that the main breaker be as close as possible to the entrance is the only question, the conduit goes right into each panel stubbed out of the slab. And they’d all be downstream of the 200a OCPD, with only the 100a and 60a conductors being undersized.