What is the purpose of the escalator's emergency power supply?

The purpose of an escalator's emergency power supply is to ensure the escalator can still operate during power outages or emergencies. This system is vital for maintaining safety and accessibility in situations where the main power supply is disrupted. By allowing the escalator to function even without regular electricity, it helps facilitate an orderly evacuation during emergencies and ensures that passengers can access the escalator safely without being stranded.

This capability of the emergency power supply enhances overall safety protocols in buildings with escalators, especially in crowded spaces like shopping malls or transit stations, where quick and safe movement is crucial during emergencies. The emergency power also typically ensures that critical safety features, such as emergency stop buttons and communication systems, remain operational.