When I had our breaker box rewired, I had the electrician run a few extra lines (disconnected in the panel into the attic). I now need to run one of them downstairs through a wall.
1) I need a junction box, as the line I have in the attic isn't nearly long enough. It's an old house, I'm planning to have cellulose insulation blown in eventually. How can I properly mount the junction box for visibility, since I know the joists will be covered with a thick layer of insulation?
2) Since I don't have a way to tie the romex down to a stud as it goes through the wall, do I need to run it in grey plastic conduit down through the wall?