| 摘要 |
PROBLEM TO BE SOLVED: To obtain a fire fighting system for a medium or high building by which the amount of water discharged is reduced to eliminate the loss of water and by which a sprayed foam is switched to be optimal form according to the situation of a fire to perform effective fire fighting, by performing foam spray containing inactive gas by adding the inactive gas to water, spraying spray in the state of fog made by the inactive gas or a snow-like spray blown off by the inactive gas. SOLUTION: The system is provided with a gas pipe 3 for feeding the inactive gas and a water feeding pipe 4 for feeding water piped from the upper floor of the medium or high building 1 to the lower floor, and housing boxes 5 which are installed at respective floors and respectively house a stop valve for a gas discharging port, a stop valve for a water discharging port, hoses extended from these gas discharging port and water discharging port in a wound state and a nozzle provided at the tips of the hoses. COPYRIGHT: (C)2003,JPO
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