Ceiling can lights
- Thread starter wk
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bphgravity
Senior Member
- Location
- Florida
Re: Ceiling can lights
If you mean a whip of FMC, then you are okay per 348.20(2)(c) and 410.67(C). As far as junction boxes go, it depends on how spaced the luminaires will be. The whips cannot be longer than 6 feet.
If you mean a whip of FMC, then you are okay per 348.20(2)(c) and 410.67(C). As far as junction boxes go, it depends on how spaced the luminaires will be. The whips cannot be longer than 6 feet.
russ
Senior Member
- Location
- Burbank IL
Re: Ceiling can lights
410.67
Type AC or MC or suitable raceway atleast 18inchs long, but not more than 60inchs. The box has to be at least 1 foot away.
Russ
410.67
Type AC or MC or suitable raceway atleast 18inchs long, but not more than 60inchs. The box has to be at least 1 foot away.
Russ
electricmanscott
Senior Member
- Location
- Boston, MA
Re: Ceiling can lights
Should you really be doing this?
Should you really be doing this?
Re: Ceiling can lights
bphgravity & russ, Thanks for the information.
electricmanscott, That's a very good question. The first Electrician I worked with, my uncle 45 years ago, told me that I should ask that very question each time I did an electrical job. I'm still asking it! Thanks.
wk
bphgravity & russ, Thanks for the information.
electricmanscott, That's a very good question. The first Electrician I worked with, my uncle 45 years ago, told me that I should ask that very question each time I did an electrical job. I'm still asking it! Thanks.
wk
russ
Senior Member
- Location
- Burbank IL
Re: Ceiling can lights
Prewired cans have their own J box and a whip from the box to the can. At one time it was common to use the non prewired type, I don't see any installed now, but I guess they must still be around.
Russ
Prewired cans have their own J box and a whip from the box to the can. At one time it was common to use the non prewired type, I don't see any installed now, but I guess they must still be around.
Russ
Re: Ceiling can lights
WK
I am wondering how you install 8 recessed cans in a skylight? are they in the ceiling above it? or around it? Are you actually cutting holes in the skylight? Are these cans being installed in an insulated area? These recessed cans that you are installing are not IC rated. so they must be kept 3" away from Insulation. They must be at least 1/2 inch away from combustable wood.
Greg
WK
I am wondering how you install 8 recessed cans in a skylight? are they in the ceiling above it? or around it? Are you actually cutting holes in the skylight? Are these cans being installed in an insulated area? These recessed cans that you are installing are not IC rated. so they must be kept 3" away from Insulation. They must be at least 1/2 inch away from combustable wood.
Greg
Re: Ceiling can lights
Greg,
The skylight itself is about 2 feet square. From there it steps down to a 4 foot square hole in the ceiling.
The lights are pointing down in the step. Insulation was kept back away from the lights at least 3 inches and the lights are at least 1 inch from any wood. Some air does come down from the cans but the owner likes the lights.
At first he was going to put in 8 cans with 100w spots in each. He changed to 8, 50w halogens on a dimmer. There's lots of light but most is straight down. With the dimmer it looks kind of nice at night.
wk
Greg,
The skylight itself is about 2 feet square. From there it steps down to a 4 foot square hole in the ceiling.
The lights are pointing down in the step. Insulation was kept back away from the lights at least 3 inches and the lights are at least 1 inch from any wood. Some air does come down from the cans but the owner likes the lights.
At first he was going to put in 8 cans with 100w spots in each. He changed to 8, 50w halogens on a dimmer. There's lots of light but most is straight down. With the dimmer it looks kind of nice at night.
wk
luke warmwater
Senior Member
Re: Ceiling can lights
I like BPH's answer, but would like to add that it would also depend on how many conductors would be in each j-box. How will these j-boxes be accessed if need be?
There are some really cool products on the market that you could also suggest, like the fiber optic pin spots
I like BPH's answer, but would like to add that it would also depend on how many conductors would be in each j-box. How will these j-boxes be accessed if need be?
There are some really cool products on the market that you could also suggest, like the fiber optic pin spots
electricmanscott
Senior Member
- Location
- Boston, MA
Re: Ceiling can lights
Installing non ic recessed lights in an insulated ceiling is very poor workmanship. In some states it is also not legal due to energy codes.
Installing non ic recessed lights in an insulated ceiling is very poor workmanship. In some states it is also not legal due to energy codes.
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