| 摘要 |
PROBLEM TO BE SOLVED: To provide sprinkler fire extinguishing equipment in an apartment house, which can sufficiently ensure fire extinguishing water when a fire is generated even if the water supply main pipe is cut off. SOLUTION: This sprinkler fire extinguishing equipment uses tap water which is fed from a water receiving tank 2 as daily life water and fire extinguishing water. In such sprinkler fire extinguishing equipment, a water level sensor 6 which detects that the water amount in the water receiving tank 2 has decreased to a water amount required for fire extinction is provided. When the water level sensor 6 detects the reduction of the water amount, a water supply pump 8 is stopped.
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