Method and device for testing the tightness of at least a sealed feedthrough and corresponding sealed feedthrough

摘要

The covers (30, 31, 32, 33, 34) shield an arrangement of cables or pipes in order to protect them from leaking or damage. A hollow space between the cover (30, 31, 32, 33, 34) and the protected object is pressurized with air of a higher pressure level than the level of the environment. The pressure is constantly checked for a certain period and a radio signal (50) initiated when an upper or lower limit is exceeded. The unit comprises a pressure duct, at least one sensor element, at least one pressure comparison unit (45) and a control unit (48) connected to the outlet of the pressure comparison unit (45).