NEC 620.24(A) says that "A separate branch circuit shall supply the hoistway pit lighting and receptacles. Required lighting shall not be connected to the load side of a ground-fault circuit interrupter."
In our office, three electrical engineers have the each differenct interpretations.
Those are following.
A)Elevator pit lighting circuit is independent. so don't connect to any other lightings installed at near space out of pit. Elevator pit receptacles circuit is likewise. In addition to that, don't connect also between pit lighting and receptacle.
B)Elevator pit lighting doesn't need dedicated circuit. It can be connected to any other lightings at near space out of pit. However it shall not be connected to receptacles in elevator pit. Receptacles in pit are likewise.
C)Elevator pit lighting and receptacles are included in one circuit. No other lighting and receptacles of outside of pit excluded for that pit circuit.
What do you think which one is right?
I'll expect your considerable insight. Would you enlighten me on this question? Thank you all for your sincere opinion in ahead.
