My current day job requires me to remove deadfronts annually and do an “inspection”. That means to my current employer “make sure nothing is or has been on fire”
Applying my new training, I am now going beyond to help me when I transition to inspections for a living.
Pictures are of a service disconnect rated at 400 amps. Service is overhead to the end of the building, then approximately 60’ underground through RSC to this point. Second picture is the listing tag for the lugs.
Phases A and B are 500 MCM feeders, with a #2 in the same lug to feed another 100A main in a subpanel. Phase C has a #3 feeder and a #2 for the third phase in the subpanel.
Based on what I know so far, I would write up these defects:
“SEC for Phase C is undersized” - I can’t see any circumstances where a #3 can carry 500 amps - especially underground in conduit with 2 other ungrounded conductors.
“Improper connection of two conductors to breaker lugs” - see listing label. I don’t see where the combination of a 500 MCM and a #2 is allowed, nor a #2 and a #3. One of the conductors is doubled over on itself to provide enough for the setscrew to grip onto.
Please correct me where needed.