I am planning to install some convenience receptacles in the deck area. I will use a PVC conduit, and it will run at the bottom/side of the joist and beams. I am not sure if I will use THHN or Romex inside the conduit. The total number of single boxes with dual receptacles will be 6 or 7. One of them will be used for a 4CF outside refrigerator which, the manufacturer specs for 1 Amp normal operation. I am planning to use a 20 Amps breaker.
I suppose to make holes in the Junction box to accommodate IN/OUT. Is there a code for how many holes the box can have? For example, if 2 or more holes can be made on the same side of the junction box, what will be the minimum distance between each other?
If I decide to use the THHN wire, once the PVC conduit reaches the inside of the house, can I transition to Romex, or do I need to continue to use PVC up to the breaker box? And how will I be doing the transition? A junction box?
Metal boxes require to use of a wire clamp. Do I need to use a "CLAMP" with PVC no matter the wire I am using?
BTW, I am planning to have the work inspected.