Abstract
It is important to study on the outbreak of fires in order to protect large cities in Japan against fires caused by earthquakes. In this papers, the spread of fires in the inside of building is discussed. And next, it is explicated how the building-factors have effects on the spread of fires in the inside of building. For analysis, statistics of usual-fires are used and processed statistically. Through the discussion, the identity and difference between usual-fires and earthquake-fires are considered. And in order to obtain the valid information for earthquake-fires from usual-fires statistics we fixed our eyes upon the stage of sprayed-fires with water hoses.
