dentist office design

[quinn77]

doing a design on my first ever healthcare facility. its a small dentist office that will contain 4 patient rooms with nitrous and oxygen, with a small storage room for both gases. art 517.60 tells me that the entire volume of each patient room up to 5 foot is class 1 div 1; however, ive seen these rooms roughed in as other than hazordous locations. am I misinterpreting this article?

 

[raider1]

517.60(A)(1) applies to hazardous (Flammable) anesthetics.

Nitrous Oxide is not a flammable anesthetic so you don't have a Class 1 location in a Dentists office.

Chris

 

[quinn77]

517.60(A)(1) applies to hazardous (Flammable) anesthetics.

Nitrous Oxide is not a flammable anesthetic so you don't have a Class 1 location in a Dentists office.

Chris

Thanks Chris, that makes sense. I was thinking about nitrous in a race car...toooootally different.:grin:

 

[raider1]

Thanks Chris, that makes sense. I was thinking about nitrous in a race car...toooootally different.:grin:

Actually they are the same thing.

Nitrous Oxide is an oxidiser which means that it adds oxygen when added to a flammable liquid or gas.

Chris

 

[quinn77]

ahah.i stand corrected.

 

[raider1]

ahah.i stand corrected.

I use to think the same thing until I was corrected.

Chris

 

[KWH]

Motorized Chair Wiring

Motorized Chair Wiring

If you have anything in the slab@ grade level in the patient care area's do not use pvc.

 

[Joe Villani]

quinn77,


Don't forget "hospital grade" receptacles as per 517.61(C)(2) and

Battery powered emergency lights as per 517.63(A), 700.12(F)

Joe

 

[quinn77]

If you have anything in the slab@ grade level in the patient care area's do not use pvc.

code ref please

 

[quinn77]

quinn77,


Don't forget "hospital grade" receptacles as per 517.61(C)(2) and

Battery powered emergency lights as per 517.63(A), 700.12(F)

Joe

got the e lights and spec'd plugs, thanx anyway for the references.

 

[chris kennedy]

If you have anything in the slab@ grade level in the patient care area's do not use pvc.

code ref please

517.13(A) Wiring Methods. All branch circuits serving patient care areas shall be provided with an effective ground-fault current path by installation in a metal raceway system, or a cable having a metallic armor or sheath assembly. The metal raceway system, or metallic cable armor, or sheath assembly shall itself qualify as an equipment grounding conductor in accordance with 250.118.

...........