I want to wire up a recessed light in a finished closet ceiling, and link it up to a switch on one of the walls of the closet.
To reach the wall from the fixture, I need to cross two joists. There’s a 1/2" gap below the joists created by the steel/aluminum furring/strapping. The cable fits in that gap without pinching.
Is using NM cable ok for that, or does it need to be conduit/armored cable —- since it’s so close to the finished surface?
I was thinking I’d drill through the top plate (double wooden 2x4), bend a rounded 90°, and fish across, threading the cable between furring and joists. I think I can get away with not crossing over a metal furring rail (which you typically have to do if you’re going "diagonally" in the lattice).
I’m in Vancouver, BC, Canada
- Joists are wooden
- studs are wooden
- top plate is wooden
- just the furring is metal
Including the relevant section of my local code. This is Section 12 of the Canadian Electrical Code (although 2015). This section is specifically on non-metallic cable.
Unless there's a specific provision that I'm missing, it would seem that the cable needs to be protected if it runs across the face joists. It also says that it can also be fished if it's impractical to support the cable, but maybe not across joists, but it's not explicitly mentioned.