I'd like to convert my existing 100-A panelboard to a junction box (a new 200-A panelboard is being installed about 15' from the existing panel). My naive question: are there any particular rules to follow for making the specific junctions within the new panel? Do I simply use wire nuts to join each individual circuit together, and put a cover on the front like one would do for a simple junction box (like, say, extending a branch circuit)?
I guess my thought was: converting a panelboard to a junction box must make for a bowl-of-spaghetti-looking panel, no?
Can I use the existing panelboard cover as my junction box cover (with the now blank circuit breaker knockouts filled in)?
I'm located in Seattle, USA.
Best Answer
Assuming it's not prohibited by your local codes and the existing panel is not violating any current codes like overfill, working space clearance, there's nothing code-wise that says "No this is prohibited".
However, a better solution if possible, since you have to run new wires anyway, is to install a 12x12 or larger junction box in the attic and crawl space and be done with it.
Now it would be wise to consult you Building and Planning Department first as most of the time the Power Co. will not reinstate power unless the work is permitted. Also, not sure about your local jurisdiction but around here they make us install hard-wired smoke alarms in every bedroom and in every hall near a bedroom if a panel is upgraded.