A/A Fuel GTX
Senior Member
- Location
- WI & AZ
- Occupation
- Electrician
You are replacing an old sub panel in a residence that has a three wire feeder contained in a severly rusted underground rigid conduit. The replacement requires the installation of a metallic junction box in place of the old panel and a new panel about 6' away. The question: do you bond the new junction box and panel to the grounded conductor or rely on the rusted rigid conduit as the grounding path and keep the grounded conductor isolated? 250.24(A) (5) seems to prohibit this but given the condition of the raceway, I would not feel comfortable relying on it to clear any faults.