A separate branch circuit shall supply elevator machine room/machinery space lighting and receptacle(s). The required lighting shall not be connected to the load side of a(n) _____.
a) local subpanel
b) SWD type circuit breaker
c) HID type circuit breaker
See answer and applicable Code reference
The correct answer is: d) GFCI
Article 620 covers the installation of electrical equipment and wiring used for elevators, dumbwaiters, escalators, moving walks, platform lifts and stairway chair lifts. Branch circuit wiring requirements for machine room or control room/machinery space or control space lighting and receptacles are outlined in Sec. 620.23. As per the second sentence in 620.23(A), "Required lighting shall not be connected to the load side of a ground-fault circuit interrupter."