Firestopping of conduit penetration through firewall
Does anybody know a specific code requirement of firestopping of conduit through a firewall? The item (conduit) in question is sealed around the annular space, is about 3/4 of an inch diameter with 2 small comm wires coming out of it. My belief is that the conduit should also have firestopping installed inside the pipe, but can't find a specific reference! Everything mentions the annular space, which is the area around the pipe!
And of course we're being challenged on this!