Run Thhn Through Attic

Ok as an electrician i have always believed thhn wire could not be run in walls etc.
Run thhn through attic. Now i am being asked for a code reference stating thhn can not be run inside residential walls without protection. Yes you can tie pvc conduit into a metallic box. Personally to do what you propose i think once you are done doing it all in conduit you ll wish you had spent the 100 on romex. Stranded thhn is used on most commercial jobs it s more flexible than solid wire which makes it easier to pull and it doesn t spring back when.
Where run across the top of floor joists or within 2 1 m 7 ft of floor or floor joists across the face of rafters or studding in attics and roof. If you choose to run pvc for protection above the rafters then thhn wire is the correct product to use inside the pvc. Other types of wire have a sticky rubber sheathing that makes them almost impossible to pull. Can anyone point me to the proper place in the 2011 book.
While one person holds the flashlight the other person should use a staple gun to run the wire along the rafters from one entry hole to the other. The staple gun should be loaded with wire staples designed for holding the size and type of wire you are running. A where run across the top of floor joists. Running feed across attic and down side of house to a doing a remodel that requires the meter to move to opposite doing a remodel that requires the meter to move to opposite side of house so new meter socket feeding qo 200 amp 8 space 16 circuit outdoor read more.
No you cannot run thhn open the same as you would nm cable. Put an lb behind the panel to make the turn into the panel and use sweep 90 s for the turns from vertical to horizontal at the rafters.