I am going to be installing a subpanel in an unfinished detached garage, and would like to install receptacles in each corner of the building.
Since the garage is unfinished (cinderblock walls), I'm going to place all of the cable ( as Romex) in Schedule 40 PVC conduit for the vertical runs from the receptacles to the rafters. To run the Romex between the building corners, I plan to run it stapled across the rafters more than 7 feet up.
At the top of each vertical conduit run, do I have to install a terminal adapter the end of the conduit electrical box & splice it to a Romex that's clamped to the box? Or is there some kind of bushing or strain relief connector that I can use on the end of the conduit, so the same piece of Romex can be run from one corner to the next?