Fire Safety Engineering (FSE) in Czech Republic Rudolf KAISER – Petr KUČERA Fire rescue service of Czech Republic & VSB - Technical University of Ostrava Introduction Worldwide trend in projection of fire safety construction tends to promote complex and economical design by means of fire safety engineering. Fire safety engineering is basically an analysis of some space in object. EU vs. Czech Republic Centre of Technical Standartization for Fire Safety Commission ISO/TC92 Fire Safety (around 70 countries) Technical standartization Commision TNK 27 SC1 Design of Fire Protection of Building SC4 Fire Safety Engineering SC2 Fire testing and classification of construction SC1 Fire Initiation and growth SC4 Fire Safety Engineering SC2 Fire Containment SC3 Integrity of Fire Safety Devices SC3 Fire Threat to People and Environment Fire scenario In the fire safety engineering is commonly used process of creation fire scenarios and probability calculation. Number of these scenarios would be practically limitless, because there are many variations of factors influencing diffusion of the fire. Procedure After the determination of certain number of scenarios are all particular steps analysed. After the evaluation of selected scenarios, a classification of hazard is assessed in terms of the number of affected persons and probability of the scenario Event tree The first situation in event tree is a fire initiation. Fire can be initiate in three single sectors. So every sector gets its probability (P1, P2, P3) and scenarios are S1 - n. Single steps that designer should follow are: Outputs of Fire Models Publication of FSE Template for calculation of solved examples in CD Utilization In practice it is very important to know where fire can originate, what probability of initiation in specific place it can have and what will be its impact on occupants in the object.