Fixture Boxes

augie47 said:
Seemingly these new fixtures do not take NEC requirements into account.
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I agree. Even the old work fixtures has a way to mount the box. The old Lightolier fixtures had pins that fastened the box and the frame to the Sheetrock. With wafer lights no one, especially the manufacturer's seem to care.
 
augie47 said:
Correct and often there is no framing member close enough (considering the short 'output' cord) to fasten the box.
On the old can lights the box was part of the can light assembly and mounted to it.
Seemingly these new fixtures do not take NEC requirements into account.
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The ones I used had 13.3” cords. If a joist can’t be reached, it’s on the installer to scab on a 2x4 for mounting.

But I agree, almost no one bothers to secure the box.
 
infinity said:
How is the junction box accessible is there an access door?




Nope. There should be an exception for these wafer lights.
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Not an access door Rob. It's a flange kit for troffers. You either frame it or give the framers dimensions at rough-in and they cut out the hard lid at finish. You install the trim kit (flange kit). If your j box is directly over or close to the 2' x 4' hole, you can always get a ladder in there to access it.
 
Rick 0920 said:
Not an access door Rob. It's a flange kit for troffers. You either frame it or give the framers dimensions at rough-in and they cut out the hard lid at finish. You install the trim kit (flange kit). If your j box is directly over or close to the 2' x 4' hole, you can always get a ladder in there to access it.
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We did this for decades but this is no longer permitted per 410.118.
 
Rick 0920 said:
Well damn! I just got educated today! :) I did not know that they made addition to the Code. Thanks.
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I'm not a fan of this code change. If it's broken why fix it? With Sheetrock or plaster ceilings a box above the fixture was the way it was done for 100 years. Not sure what the logic is for this code change.
 
If by hung ceiling they also mean sheetrock ceilings then yes if would not be permitted if the only acces is removing the fixture. This is a newer code requirement maybe they're not aware of it.
 
infinity said:
That's one way of doing it but with a sheetrock ceiling it's no longer code compliant to have to remove the fixture to access the box. Needless to say that the way it was done for 120 years.
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Sorry, know I'm repeating. What code cycle did that change? What code section? So essentially a sheetrock ceiling will not contain any boxes above the ceiling and you would have to wire directly into each fixture? A box not being allowed above sheetrock ceiling with no access door would go for a fixture box, homerun box, pull box et.?
 
Alwayslearningelec said:
Sorry, know I'm repeating. What code cycle did that change? What code section? So essentially a sheetrock ceiling will not contain any boxes above the ceiling and you would have to wire directly into each fixture? A box not being allowed above sheetrock ceiling with no access door would go for a fixture box, homerun box, pull box et.?
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It was mentioned earlier in this thread. 410.118. Boxes are permitted above sheetrock ceilings they would require access without removing a fixture like through an access door.
 
Alwayslearningelec said:
Sorry, know I'm repeating. What code cycle did that change? What code section? So essentially a sheetrock ceiling will not contain any boxes above the ceiling and you would have to wire directly into each fixture? A box not being allowed above sheetrock ceiling with no access door would go for a fixture box, homerun box, pull box et.?
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The change was made in the 2020 NEC
 
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