Emergency lights in a dental treatment area

[DanZ]

I'm new here, so I'll start with an introduction. I'm Dan, I'm a drafter / designer / Guy who does everything but stamps the drawings for a design build firm in Reynoldsburg, OH that specializes in dental offices. I've been doing this for about 2 1/2 years.

I recently got a correction letter on a job stating "NEC 517.25 requires that emergency lighting for each patient treatment location"

This is on a level 3 dental treatment facility (where they don't use nitrous or oxygen, or otherwise incapacitate patients to be unable to care for themselves)

I don't see anything specifically not requiring emergency lights, but I do remember seeing it before (perhaps in the 2005 NEC).

Do you guys have any ideas where I can find something saying we don't have to have it?

 

[lpelectric]

I'm new here, so I'll start with an introduction. I'm Dan, I'm a drafter / designer / Guy who does everything but stamps the drawings for a design build firm in Reynoldsburg, OH that specializes in dental offices. I've been doing this for about 2 1/2 years.

I recently got a correction letter on a job stating "NEC 517.25 requires that emergency lighting for each patient treatment location"

This is on a level 3 dental treatment facility (where they don't use nitrous or oxygen, or otherwise incapacitate patients to be unable to care for themselves)

I don't see anything specifically not requiring emergency lights, but I do remember seeing it before (perhaps in the 2005 NEC).

Do you guys have any ideas where I can find something saying we don't have to have it?

I looked in the IBC and at Section 1006 a dental office is not exempted from the requirements of having emergency power for Means of Egress Illumination. Take a look at 1006.1 exceptions and 1006.3.

 

[DanZ]

Thanks lpelectric, but...

Thanks lpelectric, but...

lpelectric, thanks for the quick response. I guess I forgot to mention, there's already emergency head / exit light combos spec'd for the means of egress. Just not in the treatment rooms themselves. It's kinda like not having exit lights in offices or rest rooms or other spaces, just on the path of egress (corridor or hall) from those spaces.