How well do you know the Code? Think you can spot violations the original installer either ignored or couldn't identify? Here's your chance to moonlight as an electrical inspector and second-guess someone else's work from the safety of your living room or office. Joe Tedesco, who has a knack for finding shoddy electrical work, did the dirty work and found this mess. Now it's your turn to identify the violation.
If you look closely, you’ll see that some fool used a folded-in-half fender washer to help fill in the extra space at the C-phase feeder conductor termination in this overcurrent protection device. In fact, even though you can’t see them, the other two phases are terminated in the same fashion. This isn’t a recognized method of installation and creates a serious hazard. At minimum, this installation violates the rules in 110.14, which states conductors of dissimilar metals can’t be intermixed in a terminal or splicing connector.