Petroleum product storage facilities are explosion and fire hazard systems. The occurrence of an accident with oil spillage followed by a fire creates the danger of exposure of humans and the environment to thermal radiation. The most typical emergency is a fire of spills in the dike. This paper proposes a technical solution aimed at reducing the fire and explosion hazard for oil tanks. The thermal radiation intensity during a fire of spills in the dike has been calculated. The need to protect the oil storage tank farm with a fence wall with a wave deflector baffle has been proposed and mathematically justified. Along with reducing the likelihood of oil spills at the destruction of a vertical steel tank, this appliance will reduce the environmental consequences of a man-made accident.