I am running two 2-wire and one 3-wire Romex cables from the panel in the basement to another part of the basement. For most of the run I have access to the ceiling joists, but I need to cross a 2.5 meter section which is closed off and contains lots of ducts and pipes.
Here's the obstruction. I am thinking of fishing cable between the joists on the top right of the picture:
This means that I can't support the cable every 1.5 meters, but Rule 12-520 in CEC says:
Where the cable is used in concealed wiring and it is impracticable to provide the supports required by Rule 12-510, and where metal sheeting or cladding, metal joists, metal top or bottom plates, or metal studs are not used, the cable shall be permitted to be fished.
So I just want to make sure that I understood this correctly. Can I fish the cable through, despite the fact that there are some metal ducts in the space?