FIELD: overtemperature protection of switching devices and threaded contact joints of current-carrying parts in power supply circuits.
SUBSTANCE: proposed device designed to check up contacting current-carrying parts has substrate-mounted temperature sensor holding material capable of transfer from solid to liquid phase upon inadmissible temperature rise; in addition it is provided with spring-contact power unit and audio alarm unit; temperature sensor is provided with contacts and thermoprobe; temperature sensor contacts are installed in substrate on its one end and spaced apart by mentioned material; thermoprobe is installed on other end of substrate; one of temperature sensor contacts is directly connected to spring-loaded contact of power unit and its other contact, to second spring-loaded contact of power unit through audio alarm unit.
EFFECT: ability of on-line supply of reliable information about thermal condition of zones most liable to inflammation.
2 cl, 4 dwg
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