When the plans show....
- Thread starter 480sparky
- Start date
- Status
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Nice photo's, what's wrong with that. 
Fulthrotl
~Autocorrect is My Worst Enema.~
- Occupation
- E
he should have used a 4SD box, and notched it deep, and put a ring over
the top of it..... that's what i always do.....
curt swartz
Electrical Contractor - San Jose, CA
- Location
- San Jose, CA
- Occupation
- Electrical Contractor
Garvin actually makes a similar box.
https://www.garvinindustries.com/el...junction-boxes/2-1-8-in-deep-boxes/54171-tbar
https://www.garvinindustries.com/el...junction-boxes/2-1-8-in-deep-boxes/54171-tbar
MAC702
Senior Member
- Location
- Clark County, NV
Wow. I would have never guessed that was available.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Look at the second pic. The slots are removable KOs.And how would one close up the 'unused' openings?
romex jockey
Senior Member
- Location
- Vermont
- Occupation
- electrician
One of our jobs saw a set of plans, electrical = 1 centered smoke, hvac= 1 centered vent
nobody bothered to overlay them
~RJ~
nobody bothered to overlay them
~RJ~
Well, one is going to have to give by three feet!
romex jockey
Senior Member
- Location
- Vermont
- Occupation
- electrician
yes Gary
But that's all about convincing an archy ,some of which aren't very 'flexible'
~RJ~
Bond the grid to the box.
Did a hospital remodel when the "cloud" and angled ceilings rage started, the Arch. had a tapered ceiling that at about half way would require us to core the floor above to fit the fixtures. In the meeting just couldn't make them understand so just waited for the Carps to put up the grid and hung a couple fixtures below the grid tight to the upper deck, they got he idea then.
Did a hospital remodel when the "cloud" and angled ceilings rage started, the Arch. had a tapered ceiling that at about half way would require us to core the floor above to fit the fixtures. In the meeting just couldn't make them understand so just waited for the Carps to put up the grid and hung a couple fixtures below the grid tight to the upper deck, they got he idea then.
The code will rule here. You need to be at least three feet between a smoke detector and an AC vent if I remember correctly.
No way you should have voltage in this. Does somebody get killed because you lit the grid up? This is a no-no...
The idea is fantastic. But, the chances of the grid going live, and this is not an approved method is putting you in some big liability issues, IMHO. This box is already tight, so you have space issues with the wiring and scotch locks. Ok, someone will say, bond the grid. And how do we do that as an approved means? And Gavin Industries with their box clearly states this is a low voltage installation. They know they could never get this approved for voltages above 50.
MAC702
Senior Member
- Location
- Clark County, NV
How is the grid not already bonded to the same structure that the box is anyway?
A drop ceiling is floating in the breeze. No way it would be considered bonded if something like a hot wire touches and attempts to trip a breaker. I would think it could become hot and no ones know it until someone touches it and a better grounding source.
mopowr steve
Senior Member
- Location
- NW Ohio
- Occupation
- Electrical contractor
where did you see that it was for low voltage uses? I just seen on there site it was for light fixtures,fans,etc
When you go to the site URL that's posted, click on the video on the same page and listen to what he is saying as he installs it. It's around the .50 second mark. The guy clearly states it's for Fire alarm and Cameras. I went there looking for this. No way the drop ceiling could ever be bonded in a way that if there was a fault in this box could it be relied on to trip the breaker. At least the drop ceilings I have dealt with.
Please post where Galvin is saying it's for lighting, fans.
Thanks,
Gary
MAC702
Senior Member
- Location
- Clark County, NV
No, he doesn't. Don't paraphrase. He says it's not recommended for high voltage, and is usually for security and fire alarm. Significant difference that doesn't yet say not to do it.
That said, your point is valid and I could see it being an issue, but perhaps if one DOES have a bonded grid, it would be permissible.
Interestingly, one of the reviews that they have posted on that page is from someone that used it for track lighting.
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