In addition, conventional fire safety assessment relies upon the presence of mitigation measures and fire related operational procedures. Conventional fire hazard analysis is based on the hypothesis of the presence of combustible materials in the buildings and limited number of contemporaneous sources of fire. In fact, all nuclear facilities are designed in relation to accidental fires even so, they need to be assessed in relation to sabotage induced fire scenarios due to the special characteristics of such scenarios, not addressed by the current engineering practice for the design of nuclear installations. While the former effect may be addressed by available analytical tools developed for accidental scenarios, the latter deserves a new, specific engineering effort. The analyses of sabotage scenarios carried out in recent years identified two major damaging mechanisms associated with such scenarios, namely: the mechanical interaction of solid bodies or pressure waves with the installations and the fire-related effects from burning substances. International Nuclear Information System (INIS)Ĭontri, P. Large fire scenarios in relation to sabotage of nuclear installations
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