FIELD: electrical engineering; energy.
SUBSTANCE: invention can be used for prompt emergency shutdown of electrical equipment when exposed to high temperatures, for example, in case of fire, as well as arc fault. The proposed device, operating as a typical arc fault protection device (AFPD) for single or three-phase connections, includes a module with an aerosol-forming or gas-forming composition placed inside (AFC module), an electric igniter used with it, an initiating temperature sensitive device located in the zone of impact of heat generated during the operation of the AFC module, which turns off the temperature sensitive device, which are connected to each other in series; as well as a sensor for initiating an aerosol-forming and gas-forming composition and a smoke sensor.
EFFECT: increasing efficiency of primary fire extinguishing with an increase in the efficiency of preventing the spread of fire in a confined space, in particular, such as an electrical panel, while simultaneously protecting against arc fault
12 cl, 8 dwg
