| 摘要 |
<p>A drive apparatus (1) for a fire damper (2) comprises an electric drive (10), which holds the fire damper in the normal position when power is supplied and moves it into a safety position when no power is supplied. In addition to a thermal contact breaker (12), which interrupts the power supply to the drive (10) at a melt temperature, the drive apparatus (1) also comprises a temperature sensor (13) for measuring the air temperature value (T), a gas sensor (14) for measuring the content (G) of fumes in the air, and a switch module (15), which interrupts the power supply depending on the air temperature value (T) and the content (G) of fumes in the air. In the event of a fire, the fire damper can thus be moved into a safety position not only when the temperature in the region of the thermal contact breaker (12) is high, but already when smoke or gas develops as a result of the fire.</p> |
