UDC 608.2
The article considers the possibility of compensating for the shortage of forces and resources of the regular fire protection units of the Russian Emergencies Ministry by using the available resources of the civil defense units of the Russian Emergencies Ministry. Due to objective reasons (remoteness of fire and rescue units, unsatisfactory condition of the road surface, high wear of equipment), the time of arrival of the first units to the site of a fire in rural areas often exceeds the standard. The use of degassing and decontamination equipment, which are in service with the civil defense units of the Russian Emergencies Ministry, as fire extinguishing agents will increase the tactical capabilities of the arriving units at the initial stage of the fire development. This work is devoted to the study of fire-technical characteristics of aqueous solutions of degassing and decontamination agents. A comparative assessment of the penetrating ability of water and aqueous solutions of calcium hypochlorite, lime chloride, citric acid, sulfonol and chloramine is given. The statistical significance of the obtained results is determined using Fisher's F-criterion. It is established that aqueous solutions of sodium hypochlorite and sulfonol at concentrations of active substances of 1 and 0.3% by weight, respectively, have greater penetrating ability compared to water. Full-scale fire tests were conducted to extinguish an experimental Class A fire using solutions of chloramine, sulfonol and calcium hypochlorite. It was found that an aqueous solution of calcium hypochlorite, when supplied as a finely atomized stream, has a fire-extinguishing capacity that exceeds that of water by 16%. Aqueous solutions of chloramine and sulfonol, under similar supply conditions, have a fire-extinguishing capacity that is approximately 2 times higher than that of water
penetrating ability, a-class fire source, fire extinguishing agent, extinguishing with fine water spray
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