MIXTURE OF DECAFLUORO-2-METHYLBUTAN-3-ONE AND A VECTOR GAS AS A MEDIUM FOR THE ELECTRIC INSULATION AND/OR QUENCHING OF HIGH-VOLTAGE ELECTRIC ARCS

摘要

The invention relates to the use of a mixture comprising decafluoro-2-methylbutan-3-one and a vector gas or a dilution gas as a medium for the electric insulation and/or quenching of electric arcs in a medium- or high-voltage electrical appliance. The invention also relates to a medium- or high-voltage electrical appliance in which the electric insulation and/or quenching of the electric arcs is (are) provided by a mixture comprising decafluoro-2- methylbutan-3-one and a vector gas or a dilution gas. The invention is suitable for: electric transformers, gas-insulated lines for transporting or distributing electricity, busbars, electric connection/disconnection devices (circuit breakers, switches, switch-fuses, isolators, earthing switches, contactors, etc.).