My current employer says he got dinged by the inspector for running more than 3 romex's through holes (regardless of the size of hole or situation).
Under my previous employer we used to drill 1 1/2" holes through the middle section of a laminated wood structural engineered I-beam floor joist's (the 1/2" thick OSB portion) for running romex's through, sometimes it was interconnects, sometimes it was home runs to the panel. We would try to limit the amount of cables through these holes to about 6-7, depending on the type and size of cable. That inspector never had issues.
The only thing I can find in the code book and in MH's books is 334.80, where if more than 3 cables are run through a hole that is to be sealed or caulked you have to derate the cable based on 310.15B3a.
Am I missing something?
Thanks,
Sky
Under my previous employer we used to drill 1 1/2" holes through the middle section of a laminated wood structural engineered I-beam floor joist's (the 1/2" thick OSB portion) for running romex's through, sometimes it was interconnects, sometimes it was home runs to the panel. We would try to limit the amount of cables through these holes to about 6-7, depending on the type and size of cable. That inspector never had issues.
The only thing I can find in the code book and in MH's books is 334.80, where if more than 3 cables are run through a hole that is to be sealed or caulked you have to derate the cable based on 310.15B3a.
Am I missing something?
Thanks,
Sky