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.

Yes you can use metallic or non metallic conduit but it must be electrical conduit. Can anyone point me to the proper place in the 2011 book. Bring all of the wire up into the attic. If you choose to run pvc for protection above the rafters then thhn wire is the correct product to use inside the pvc.

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. Now i am being asked for a code reference stating thhn can not be run inside residential walls without protection. 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. Yes you can tie pvc conduit into a metallic box.

No you cannot run thhn open the same as you would nm cable. Other types of wire have a sticky rubber sheathing that makes them almost impossible to pull. 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. A where run across the top of floor joists.

Thhn thermoplastic high heat resistant nylon coated is the best wire for pulling through pvc conduit. 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.