I’ve just started my training and I’m going through the electrical inspections course with limited electrical experience. I’ll likely need to do some extra work to gain the experience I need in this area, which I’m actually looking forward to… For now, I have a question regarding my service panel. This is a 125 amp Federal Pioneer Stab Lok panel with service lateral and I see that they’re listed as a typical problem panel for safety reasons. However, right now I’m wondering about the 3-wire system leading to the main breaker: two ungrounded conductors and what I’m assuming is the neutral, but shouldn’t it be insulated? Is a bare neutral permitted? Or have I completely missed the mark here?
Thanks for any feedback!
Jaime St. Louis