Operating Room Lights

[scubad3932]

Not 100% sure on Health care installs but can an OR light be installed using Hospital grade MC.

The OR is going from a single head light to a duel head light and I need to add a new switch.. Wasn't sure from what I can read in the code book it says a metal raceway or a metal sheath that can be counted as a ground.

Since its an OR that is up and running adding pipe down a wall to a new switch is impossible with out having to cut the wall open.

 

[chris kennedy]

Not 100% sure on Health care installs but can an OR light be installed using Hospital grade MC.

I like it.

517.13 Grounding of Receptacles and Fixed Electrical Equipment in Patient Care Areas.
Wiring in patient care areas shall comply with 517.13(A) and (B).
(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.
(B) Insulated Equipment Grounding Conductor. The grounding terminals of all receptacles and all non?current-carrying conductive surfaces of fixed electrical equipment likely to become energized that are subject to personal contact, operating at over 100 volts, shall be connected to an insulated copper equipment grounding conductor. The equipment grounding conductor shall be sized in accordance with Table 250.122 and installed in metal raceways or as a part of listed cables having a metallic armor or sheath assembly with the branch-circuit conductors supplying these receptacles or fixed equipment.
Exception No. 1: Metal faceplates shall be permitted to be connected to the equipment grounding conductor by means of a metal mounting screw(s) securing the faceplate to a grounded outlet box or grounded wiring device.
Exception No. 2: Luminaires more than 2.3 m (7? ft) above the floor and switches located outside of the patient care vicinity shall be permitted to be connected to an equipment grounding return path complying with 517.13(A).