I have a situation where 2" PVC provides a conduit from basement to attic via outside of the house. As such if that classifies as a wet or damp location and NM-B wire cannot be used in that section of conduit, then what choice is there currently other than UF-B ?
Just one run needed for 240 volt 3-wire (red/black/neutral/ground) either 12 gauge or 10-gauge, currently on 20 amp breaker, do not foresee need to ever go above 30 amp need, this is for AC air handler in attic.
The conduit is 2", and wish to keep the ends of conduit open so runs of RG-6 coax or CAT-6 cabling can be done to reach attic then down to second floor rooms. Only the one run of 12/3 or 10/3 is needed from basement up to attic through exterior 2" conduit to reach AC air handler in attic. Only possible space issue is at one 2" LB conduit body.
From exit of top of load center to entrance of 2" conduit in basement ceiling the wire would not be in conduit. And in attic from conduit exit to Jbox on AC unit wire would not be in conduit