I am installing a subpanel in my attached garage and thought I had covered all the bases when running PVC conduit horizontally through the wall between the house and the garage. The wall has 5/8 fire code drywall on the garage side. The PVC conduit actually is run through the rim joist from the basement. So I recently saw some items that may apply to my situation.
The 1-1/2” PVC sch 40 conduit is running perpendicular through the first-floor rim joist, I saw some discussions that this needed to be PVC sch 80 conduit for conduit running in a garage? Does that apply to the conduit running above the subpanel up the garage wall and along the ceiling?
It is coming through the wall approx 4 inches off the concrete garage floor, is this an issue? Is there a height requirement? There really isn’t any horizontal conduit in the garage, since it goes immediately into an LB, and up the garage wall 54 inches into the bottom of the subpanel.
Suggestions for how to maintain the firewall fire integrity around the PVC conduit, the hole drilled for the conduit is exactly the same as the OD of the conduit, and there is no gap. Should I still try to fire caulk around the conduit where it comes into the garage?