AS TO THE SUBSTANTIATION OF TECHNIQUE OF FIGHTING FIRES INVOLVING ELECTRIC VEHICLES

It was found that today there were no scientifically substantiated requirements for fire-fighting systems of construction works with the presence of electric vehicles as well as fighting fires involving electric vehicles with the use of mobile fire fighting equipment. It was shown that the greatest problem associated with the elimination of the fire involving an electric vehicle was the quenching of the lithium-ion battery. The previously formulated requirements were identified and it was confirmed that neither water nor currently existing gas and powder commercially available fire extinguishing agents did not satisfy them in full. It was concluded that fighting fires involving lithium-ion batteries and electric vehicles on which these batteries were installed should be started as soon as possible in order to avoid any explosion of the battery with its complete depressurization. The need for long-term and effective cooling of lithium-ion batteries to suppress thermal runaway from them as well as their further monitoring after eliminating the fire in order to prevent re-ignition were substantiated. It was determined that a promising trend in the development of fire extinguishing agents specially designed for extinguishing lithium-ion batteries was the creation of powders containing some functional cooling additives. One of these additives is ammonium-aluminium sulphate dodecahydrate NH4Al(SO4)2⋅12H2O.