Analysis of Fire in Building Based Three Type of Dangerous Source Theory

Fire is a disaster to human social.Two kind's duality principles of fire and fire dynamics are analyzed.There are combustible material,fire protection defect,organization defect and human mistakes in building system.Three type of dangerous source of fire in building system are identified and classified.The unsafe behavior and organizational errors are studied,distinguishing fire mechanism.One hotel fire case is researched,and the linked mechanism of accident is presented.Conclusion is illustrated that three type of dangerous source theory is a mean for fire analysis and danger identification.The system safe principle which is called as"5 overall 2 zeros means" is presented.