SparksRfun
Electrical
Operating rooms typically use Line Isolation Monitor (LIM) panels for power because they are wet locations. I am working in an operating room that is definitely so, the nurses tell me it is routinely wet during procedures. It has a single LIM panel on critical branch power. They've outgrown the panel, because they have mulioutlet strips and cords running all over the place. a couple of the suites have been upgraded with a second LIM panel.
NEC 517.19(A) says that each patient BED location shall be supplied by one or more normal circuits and one or more emergency circuits. I don't think a surgery suite is a patient "Bed" location however the priciple is to give more reliability than just one source of power.
NFPA 99 4.3.2.2.1 (B)Critical Care Areas says that "These areas" shall have some emergency and some normal power or "a system originating form a second critical branch transfer switch."
Would it be better to have two LIM panels in an operating room, one on critical branch and one on normal branch power, or two LIMs both on critical branch power originating from separate transfer switches?
NEC 517.19(A) says that each patient BED location shall be supplied by one or more normal circuits and one or more emergency circuits. I don't think a surgery suite is a patient "Bed" location however the priciple is to give more reliability than just one source of power.
NFPA 99 4.3.2.2.1 (B)Critical Care Areas says that "These areas" shall have some emergency and some normal power or "a system originating form a second critical branch transfer switch."
Would it be better to have two LIM panels in an operating room, one on critical branch and one on normal branch power, or two LIMs both on critical branch power originating from separate transfer switches?