Ok, this is not a joke. A contractor called me and told me an inspector in a neighboring jurisdiction had told him EMT connector locknuts were no longer acceptable for grounding when using the conduit as an equipment ground. All locknuts have to be replaced with the grounding type locknut with the little screw.
The inspector said he was told this at a seminar and no other info was forthcoming. I checked the UL info on EMT fittings and there were no restrictions. The KO's were cut accurately and there were no concentric or eccentric KO's. Voltage was 480.
Anybody heard of anything regarding this?


Larry LeVoir
Inspector
City of Irvine, CA