Un equipo interruptor, caracterizado porque comprende: una envolvente que tiene una base, al menos una pared y un techo, dicha envolvente aloja al menos un dispositivo eléctrico; y un sistema de ventilacion para la expulsion de los gases procedentes de dicha envolvente, dicho sistema de ventilacion tiene: al menos una chimenea teniendo una o más paredes.

摘要

A ventilation system for switchgear has at least one chimney mounted to the roof of the switchgear enclosure. The at least one chimney has a flap mounted thereon for relieving pressure, hot gases, and particulate matter generated during an arc flash. The chimneys have grates in opposing side walls for ventilation of the switchgear. Under certain conditions, the grates allow the release of pressure below the threshold for raising the flaps. The flaps elevate when gases travel between the enclosure and an internal volume of said at least one chimney.