Fire Extinguishers
Fire extinguishers – the most common method of protection from fire. By way of action and composition active substances recommended for the individual use of the device are divided into powder (OP), carbon dioxide (DU) and air-foam (AFP). Each has its advantages and disadvantages. Thus, powder superfine powder fire extinguishers are charged the total (for fire classes A, B, and C (see Table 1)) or special purpose (for fires, Class E), and pumped the gas (air, nitrogen, carbon dioxide) to a pressure of 16 atm. op operated at -40 (may be kept in unheated rooms) to +50 C.
These shortcomings include the fact that during the fighting remain in the air suspension can easily penetrate into the audio, video and tv equipment, leading to its damage. In addition, the powder eventually be compressed and the cylinder should definitely vstryahivat several times a year. Time in 5 years need a mandatory reload. Table 1. Classification of fires, depending on the type of burning substances and materials (data log "Ideas For Your Home"). Class Description Class Division Fire Division A Burning Characteristics of solids A1 combustion of solids, followed by decay (eg wood, paper, straw, coal, textiles) A2 burning solids which are not accompanied by decay (eg, plastics) in combustion of liquid substances B1 burning liquid substances insoluble in water (eg, gasoline, ether, petroleum-based fuels), and also condensable solids (eg paraffin) B2 burning liquids, soluble in water (eg alcohols, methanol, glycerol) with the burning of gaseous substances (eg, domestic gas, hydrogen, propane) D Burning lungs (D1), alkaline (D2) of metals or metal-containing compounds (D3) E burning electric live up to 1000 (including appliances) Carbon dioxide fire extinguisher, which is an efficient means of carbon dioxide under pressure (it is in liquid form) can be used almost without restrictions. .
