ECN Forum Forums General Topics of the Trade General Discussion Area Have you ever had one of those jobs.....

A case of the EMT doing the 'n' job!

I had a 120 volt circuit that had only one (1) THHN conductor. On the cb, and on the receptacle, the 'n' of the receptacle was bonded to the 4 sq box, the EMT to the panel. Worked fine for a while until the loose setscrew couplings started arcing!! Could have been the cause of a fire, as the EMT was on wall behind clothing racks.