FIELD: electricity.
SUBSTANCE: electric switching device (1) is filled with a dielectric insulating medium containing an organofluorine compound, in particular fluoroether, fluoramine, fluorine ketone or fluoroolefin, and contains at least a unit of arc-extinguishing contacts with the first arc-extinguishing contact (4a) and the second response arc-quenching contact (4b). At least first intermediate space (7) is arranged below first arc-extinguishing contact (4a), and/or at least second intermediate space (8) is arranged below second arc-extinguishing contact (4b). Intermediate outlet spaces (7, 8) serve for intermediate pressure increase and formation of exhaust gas jet for turbulent convective heat transfer to metal walls (7b, 8b) of exhaust system. In embodiments of the invention, the first and/or second intermediate space (7, 8) is separated by at least one movable wall (14a, 14b) arranged across the longitudinal axis (z), which is movable in parallel to the axe with the aid of actuator (15, 16).
EFFECT: technical result is improved cooling of waste gas.
49 cl, 5 dwg
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