This question wasn't brought up in my recent post. I thought it would've been asked already so I didn't think it was needed to be brought up. I apologize if it's been already asked but my searches have all struck out on this forum.
Are there alternatives to a damage shield for exposed NM-B romex inside unfinished out buildings ? The shed will never have finished walls. I was able to find a post that Harper commented on that he cited NEC 334.15 Exposed Work (C) for unfinished basements and crawl spaces.
I'll be bringing likely THWN-2 Cu into the shed for a 120V 20A branch ckt from a 200A service panel at the house. The run will be 10 AWG 2-wire underground in PVC conduit buried 18" and enter the shed through schedule 80.
I'd prefer to transition to cable and not have to run conduit for damage protection throughout the shed. I want to say it's non compliant to run Romex in conduit but I don't know if that's accurate. An authority having jurisdiction of performing an inspection is very unlikely (extremely remote location). Nevertheless, we'd like to have the work performed to be code compliant.
The place where the Romex could get hit by a tool or whatever is entering and exiting the gang boxes and then it would run vertically up to the light fixtures where it won't have any likelihood of getting banged.
Is a junction box required to transition from THWN to cable ? Or is wiring NM-B sheathed cable within gang boxes compliant ?
Note: The switches and GFCI will likely be mounted horizontally and not vertically.