Where must a light switch be mounted in an elevator machine room?

The requirement for a light switch to be mounted within 18 inches of the door in an elevator machine room is designed for safety and accessibility. This specific placement ensures that personnel can easily access the switch when entering or exiting the room, thereby enhancing the safety of anyone working in or around the area.

Having the switch located within this proximity also minimizes the risk of accidents by allowing workers to quickly turn on the lights before entering the room, where visibility may be limited. Furthermore, this standard is in line with safety codes that emphasize the importance of having essential controls within easy reach in potentially hazardous environments like elevator machine rooms.

Mounting the switch within this specified distance ensures compliance with regulations that aim to protect workers and maintain operational safety.