I've run into a challenge on one project that I am currently working on:
Existing building has vertical conduits runs (+/- 20 ea. 1" conduits) through expansion joint between 2 buildings. Vertical conduit runs span several floors, and it presents a problem from fire-stopping perspective, as we have not been able to find a firestopping manufacturer (i.e. 3M, Hilti, etc.) who would provide a detail with 2-hr firerating for conduits running through the expansion joint.
Electrical contractor should have cored his own holes in concrete slab to get the conduit from one floor to the next, but instead he elected to run conduits right through the expansion joint for his convenience. (At each floor, there is a 2-hr stairwell shaftwall on one side of the expansion joint, and 5" drywall partition on another.)
I have been trying to find if there is any code (NEC, UBC, etc.) that states that expansion joints cannot be used as a "chase" for conduits. If anyone is aware of a code that addresses this issue of conduit installation, would you please site chapter and verse of the code?
I am trying to find out if existing installation is code-compliant. If it is NOT, then conduits would have to be relocated and installed between the floors through new cores in existing concrete slab.
Existing building has vertical conduits runs (+/- 20 ea. 1" conduits) through expansion joint between 2 buildings. Vertical conduit runs span several floors, and it presents a problem from fire-stopping perspective, as we have not been able to find a firestopping manufacturer (i.e. 3M, Hilti, etc.) who would provide a detail with 2-hr firerating for conduits running through the expansion joint.
Electrical contractor should have cored his own holes in concrete slab to get the conduit from one floor to the next, but instead he elected to run conduits right through the expansion joint for his convenience. (At each floor, there is a 2-hr stairwell shaftwall on one side of the expansion joint, and 5" drywall partition on another.)
I have been trying to find if there is any code (NEC, UBC, etc.) that states that expansion joints cannot be used as a "chase" for conduits. If anyone is aware of a code that addresses this issue of conduit installation, would you please site chapter and verse of the code?
I am trying to find out if existing installation is code-compliant. If it is NOT, then conduits would have to be relocated and installed between the floors through new cores in existing concrete slab.