The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Topic Options
Rate This Topic
#123240 - 03/10/06 03:36 AM Access to box
electure Offline


Registered: 12/24/00
Posts: 4226
Loc: Fullerton, CA USA
The pictures show the factory 1 1/2" KO, the ceiling box it is to be mounted to and a recut 2" KO (badly, I am ashamed to say) with a plastic snap in bushing.
My question, Is that code compliant access to the box?


Tools for Electricians:
#123241 - 03/10/06 07:02 AM Re: Access to box
renosteinke Offline
Cat Servant

Registered: 01/22/05
Posts: 5305
Loc: Blue Collar Country
I think that covering the box with the fixture is so common a practice that it would be "allowed by tradition."
Putting a bushing in the opening, though, is something almost never done- yet it should!

One little detail I add whenI mount a fixture this way: I add a small hole to the side of the bushing. This alows me to make my first support of the fixture by running a screw into the box. Then I can line up the light, and sink additional anchors.

#123242 - 03/10/06 10:29 AM Re: Access to box
ghost307 Offline

Registered: 05/09/05
Posts: 883
Loc: Chicago Illinois USA
That gigantic hole, if properly bushed, is the requirement. Check out NEC 410.14B.

#123243 - 03/10/06 02:20 PM Re: Access to box
BigJohn Offline

Registered: 03/06/04
Posts: 352
Loc: Boston, MA
If you're in a pinch where you need a hole to access the box, and don't have any sort of bushings here's a trick I use:

Figure out where your box is gonna in relation to your fixture. Drill a hole in the fixture that marks the center of the box. Use tin-snips to cut an "X" in the in the fixture, the hole you drilled should be at the center of the "X". Then fold back each of the triangles formed by the "X", and press them flat with your kleins or a hand-seamer. It leaves you with a square opening in the fixture, and the rounded edges won't knick your wires.


#123244 - 03/10/06 05:22 PM Re: Access to box
ShockMe77 Offline

Registered: 06/11/05
Posts: 823
Loc: Rahway, New Jersey
"allowed by tradition"

That's pretty funny!

#123245 - 03/12/06 09:05 AM Re: Access to box
Lostazhell Offline

Registered: 02/21/04
Posts: 1248
Loc: Bakersfield, CA (Originally Or...
I carry heatshrink in the truck in case I need to make a bushing for some odd size punchout... slit the heatshrink down the center and bend backwards to slip into the punched out hole. works well with 3" and 4" holes like these..


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals