I own a Toronto condo, and as a result of a bedroom wall being added after the initial construction, light switches for the living room are inside the bedroom (like that when I bought the unit). I want to add switches at an appropriate place on that separating wall, and thus have to go from the old switch box around a wall corner and a door frame. The construction is metal studs.
I have consulted the CEC, but I'm unsure: what types of wiring are allowed in my case?
I'm moving 3 switches, so at minimum I'll need 7 conductors (not counting bonding). CEC rule 12-106 says: "Where multi-conductor cable is used, all conductors of a circuit shall be contained in the same multi-conductor cable". Does that mean I can't run 3 parallel cables for example? I doubt I can find a 7-conductor cable, so my other option would be single wires in a conduit? The current switch box receives 1" non-metallic tubing, but that seems more difficult to install and the path I had in mind would have 5 90-degree bends, while the maximum is 4 when running wires through it.
Finally, are these condo towers still considered residential or are there different rules to consider?