Five-prevention audible and visual alarm device for switchgear

Abstract

A five-prevention audible and visual alarm device for switchgear includes: a power supply unit, a status indication unit, an audible warning unit, and a luminous warning unit. The power supply unit is configured to output low-voltage direct current (DC), providing operating voltage for other units. The audible warning unit and the luminous warning unit operate in coordination. The luminous warning unit includes a plurality of parallel detection branches, each detection branch corresponding to an operating compartment in the switchgear and having a signal light. When a door of a live operating compartment is opened, the signal light emits a luminous warning while triggering the audible warning unit to emit an audible warning. In the event of inadvertent entry into a live compartment when operation is prohibited, audible alarms and visual warning lights are triggered, improving equipment safety and reducing the likelihood of accidents.