bkludecke
Senior Member
- Location
- Big Bear Lake, CA
- Occupation
- Retired Electrical Contractor
Here's the situation. I've got a 200amp 3pole 480volt 3phase CB feeding a 112.5kva xfrmr. Out of the xfrmr is a set of 500kcmil thhn cu conductors landing in a 350amp 3pole CB on the 208volt panel board. What I want to do is tap the line side of the 350amp CB (very convenient) with a set of 4/0 landing them in a 225amp main CB new panel board using the 25' tap rule.
What I'm not sure about is, is this tapping a tap? Or is it NEC compliant?
What I'm not sure about is, is this tapping a tap? Or is it NEC compliant?