It’s Subpanel Saturday! (or Sunday depending on when you’re reading this)
Thought this might be fun and also educational both for myself and those reading this.
How many problems can you find with this subpanel?
Disclaimer: If it matters, I am not charging anyone to fix or diagnose this panel. It will be fixed but the exercise is mainly for fun and education.
I know it has at least one major safety problem and several smaller “you should do it another way” kind of problems. Interested in what others think about it.
Here’s what I think is wrong with it:
The main thing I see is that the brand of circuit breakers are Challenger which are considered a fire hazard. This brand is no longer used and must be replaced for safety. As far as I’m aware they’re considered to be responsible for thousands of house fires. At least insurance companies would say so. In all fairness the label is pretty hard to see in these photos.
Things that I would think are less major:
The feeder lines look like they’re over-torqued & the lugs are bent. The key is not filled out and it covers part of the manufacturing label. I am not seeing a double groove on these breakers at the connection so it makes me think the double tapped breaker is not rated for that. The box is rusted up which could indicate moisture problem.
Things that don’t seem like a problem to me but someone may know better:
Someone has routed the feeder lines up through the knockout to a switch box on the left, then back into the box we are considering. Not sure if it’s against code or anything but it looks amateurish. There is a taped 6 gauge grounded conductor going to the neutral bus that is but I think that’s acceptable.