We have a new bank that is opening in our city. Inside the bank most of the offices are all glass with aluminium frames. the aluminium frame was used as a chase, but was cut enough to mount a switch in it with out a box. To me this is not legal, but the general contractor said they do this all over the state, and the blue prints are stamp and noted to do this by the engineer. Is this legal by code??
Switches mounted in aluminium frame windows
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jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: Switches mounted in aluminium frame windows
It is not a listed raceway,and sure isnt a listed box.Where do they put the ground screw ?
Seen it done yes,legal no
It is not a listed raceway,and sure isnt a listed box.Where do they put the ground screw ?
Seen it done yes,legal no
Re: Switches mounted in aluminium frame windows
:roll:
Call him on it...invite the AHJ down to the job site for his "opinion".
When I did banks (as an employee) years ago, we would mount a wiremold box on the mullions to accommodate the switching, keypads, etc.
What else did the contractor say?
:roll:
Call him on it...invite the AHJ down to the job site for his "opinion".
When I did banks (as an employee) years ago, we would mount a wiremold box on the mullions to accommodate the switching, keypads, etc.
izak
Senior Member
- Location
- Springfield, MO
Re: Switches mounted in aluminium frame windows
can you not install a device without a box if it is listed for that application?
i think you can
mobile home manufacturers have been doing it for years
can you not install a device without a box if it is listed for that application?
i think you can
mobile home manufacturers have been doing it for years
- Location
- Windsor, CO NEC: 2017
- Occupation
- Hospital Master Electrician
Re: Switches mounted in aluminium frame windows
As Jim mentioned, I believe the ground screw would stick out when you drilled and tapped your own through the pillar.
See 404.3(A), and 406.4. If the aluminum frame is "listed for the use", it's ok. I seriously doubt it is.
As Jim mentioned, I believe the ground screw would stick out when you drilled and tapped your own through the pillar.
paul
Senior Member
- Location
- Snohomish, WA
Re: Switches mounted in aluminium frame windows
But first I, too, would like to see a listing for reaceway if they're dropping single conductors down. Is it not possible to fish MC down and cut in a box?
Who says ya gotta use a ground screw?Originally posted by georgestolz:
See 404.3(A), and 406.4. If the aluminum frame is "listed for the use", it's ok. I seriously doubt it is.
As Jim mentioned, I believe the ground screw would stick out when you drilled and tapped your own through the pillar.
But first I, too, would like to see a listing for reaceway if they're dropping single conductors down. Is it not possible to fish MC down and cut in a box?
jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: Switches mounted in aluminium frame windows
They are trying to use the frame as a power pole.While i dont see any real hazard if it was capped at top and used a box there it is still not a listed item.
They are trying to use the frame as a power pole.While i dont see any real hazard if it was capped at top and used a box there it is still not a listed item.
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