抄録
The objective of this study is to identify the rate of reduction in radiated heat by fire protection equipment using a water curtain such as drencher system. A fire test was conducted while assuming the fully developed fire. Test equipment consisting of a heating furnace and a drencher was used. Data were obtained on the relationship between the intensity of radiated heat and the temperature in the furnace while the drencher was active. The test results were used to identify the rates of reduction in radiated heat for respective water curtains created by different water shooting system, the relationship between the quantity of discharged water and the radiated heat reduction rate, and the methods for applying the radiated heat reduction rates in building fire safety design