Traditional Culture Encyclopedia - Hotel accommodation - 65m high hotel, the corridor is 2m wide and 50m long. If smoke detectors are used, how many should be installed at least? ( )

65m high hotel, the corridor is 2m wide and 50m long. If smoke detectors are used, how many should be installed at least? ( )

Answer: b

According to Article 6.2.4 of Code for Design of Automatic Fire Alarm System (GB 50113), when the point detector is installed on the ceiling of an inner walkway with a width less than 3m, it should be arranged in the center. The installation spacing of temperature-sensitive fire detectors should not exceed 10m, the installation spacing of smoke detectors should not exceed 15m, and the distance from detectors to end walls should not exceed half of the installation spacing of detectors.

There are three smoke detectors, with a spacing of ***45m in the middle and 2.5m on both sides, which meets the requirements.