H - Electricity – 02 – G
Patent
H - Electricity
02
G
340/102, 337/128
H02G 3/22 (2006.01)
Patent
CA 1252845
ABSTRACT OF THE DISCLOSURE The apparatus for detection of fire in a building includes at least one duct for at least one cable, particularly an electrical cable, through a wall opening in one of the walls of the building. The duct having two sealing members sealing the wall opening on both sides of the wall against the cable and the wall of the cable-feed passage is a fire retardant seal, by which the line of the cable is sent between different fire zones separated by the wall from each other while preventing the spread of fire between the fire zones. At least one electrical temperature sensor is mounted inside of the duct and at least one electrical connecting conductor connecting the temperature sensor and a detection device for direct detection of a sensor signal from the temperature sensor is guided from the interior of the duct to the wall and is fire protected in the wall. The duct with the sensors and the connecting conductors are embedded in the wall of the building during its manufacture. Additional sensors including smoke or gas detectors and a plurality of variously positioned temperature sensors can also be provided.
513528
Baker Harold C.
Hauff Werner
LandOfFree
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