METHOD OF ELECTRICAL HAZARD WARNING OF CONTROL FACILITY BY FIRE-EXTINGUISHING SYSTEM Russian patent published in 2013 - IPC A62C37/00 

FIELD: fire-prevention facilities.

SUBSTANCE: invention relates to the field of fire-fighting equipment and operators of extinguishing fires in buildings with electrical equipment, as well as for protection of electronic systems of fire extinguishing plants from electric shock. Prior to the operation of the control facility the deliberately safe value of electric current is set. In operation of the control facility an exception to exceed the given value of the electric current is provided in the place of contact of the extinguishing agent to the device that generates it. The operator of extinguishing fire or other control facility are warned about the presence of electric current and risk of it in the extinguishing area of the plants that are under voltage. According to the parameters of the stream flow (direction, distance of the stream) of the extinguishing agent the presence and location of plants under voltage is determined. For actuating of the warning of the control facility the potential difference between the geometric center and the periphery of the stream is used, or between the stream and the grounded device that generates the stream of extinguishing agent. In case of excess of the given value of the electric current the extinguishing is terminated automatically, remotely or manually or transferred it to a safe mode.

EFFECT: development of the method of electrical hazard warning of control facility by fire-extinguishing system due to eliminating dangerous electrical current flowing through the stream.

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