I have been trying to get a firm grasp on when one should see plastic bushings vs when one should see grounding bushings.
I have been under the impression that one of the requirements is if there is a conductor coming through a concentric knockout but the entire knockout has not been removed, and there are still concentrics, then you should see a grounding bushing?
What if it is fed by metal conduit, ALWAYS grounding bushing?
I’m sure I am all wrong here I am having trouble grasping this. Thanks!!
This message was edited 2 times. Last update was at 02/24/2020 11:20 PM EST