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sundowner
06-11-2007, 01:29 AM
Ran into a strange situation the other day. Got a call to meet with one of the student artists. She says she needs to lamp a forty foot hallway with paintings hung on the wall. Ok I said, lets see what you have in mind to do it
with. Shows me a twenty pound transformer with a six foot cord--(no plate), aluminum track to accept some low voltage flat cable, and some mounting hardware for the twelve volt lights and the track to T bar grid.

Dumb questions first... why cant I remove the six foot cord from the xformer, install it above the ceiling, ( as hardwired in a suitable enclosure) and run the low voltage cabling down the wall in a "decorative" chase (like a stick of texture painted 700). Is this a violation of 110.3(B). Does 300.22(C)2 allow me to mount the device in a Hoffman box and take it from there. The space above the grid is'nt used for air handling anyway.

Whatcha think

Steve

mdshunk
06-11-2007, 01:41 AM
Dumb questions first... why cant I remove the six foot cord from the xformer, install it above the ceiling, ( as hardwired in a suitable enclosure) ....Why can't you? Probably because the UL didn't investigate the product to be used that way. Does the customer find the transformer objectionable, or are you trying to play hero?

sundowner
06-11-2007, 11:55 PM
No hero here, I was only thinking that I cant simply plug it in to a recep above a suspended ceiling. But maybe I could remove the cord set and hardwire the xformer to avoid my receptacle acessibility violation.

The deal is I don't want to plug the darn thing in at the wall recep and then run the low voltage wiring up the wall to the aluminum track. I'm hoping for a more hidden install. Maybe I'm SOL.

Thanks for the quick reply Marc, I've read some of your posts recently,very sharp fella.

Steve

danickstr
06-12-2007, 02:12 AM
what kind of a transformer is it? are the wire leads exposed? And is there a limit in size to how big a transformer can be to be stuffed in a (big) j-box?

Brady Electric
06-12-2007, 06:57 AM
I would try to get the customer to use more updated lighting. I don't like to put in used fixtures. New ones are smaller and don't usually require service calls later. I agree Marc is sharper than a two edge sword. Semper Fi. Buddy