The article is devoted to the identification and analysis of the physical characteristics and thermal effects of a fire in an emergency situation. The main purpose of the work is to study the influence of physical damaging factors on the degree of danger of a potentially hazardous object. The article considers a deterministic method for assessing the effects of the action of a physical damaging factor (intensity of thermal radiation). The study is an effort to analyze the physical damaging factors of the fire, because it is the physical basis for an objective assessment of the danger and risk of an accident at the researched object.

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