Ceiling octagonal box small knockouts, how to seal.
#1
04-21-15, 11:37 PM
Ceiling octagonal box small knockouts, how to seal.
How does one seal the small, 3/8th inch knockouts in metal octagonal ceiling fixture boxes (the ones that have the clamps)? I've looked for seals and the smallest is 1/2inch trade size, which is actually close to an inch and is too large for the smaller knockout. Are the internal Romex wire clamps, if tightened without a wire in them, considered adequate to seal the knockout?
#3
04-22-15, 04:22 AM
The hickeys inside the box have an occlusive tab, that when tightened will serve as a closure for the hole. If the hole is independent, then they will be larger and a normal plug can be inserted.
#4
04-22-15, 12:25 PM
Is the internal clamp the hickey? It has a tab as you described which covers the hole when the screw is tightened, though the hole isn't covered completely, but it sounds like tightening the screw would provide adequate coverage.
