MEDIUM OR HIGH VOLTAGE ELECTRICAL APPARATUS WITH GAS INSULATION COMPRISING SULFUR HEXAFLUORIDE AND ANOTHER FLUORINE COMPOUND

摘要

The present invention relates to a medium or high voltage electrical apparatus comprising a sealed enclosure in which are of the electrical components and a gaseous mixture ensuring electrical insulation and / or extinction of the electric arcs may occur in this enclosure, the gaseous mixture comprising the sf6 and a fluorinated compound having a dielectric strength greater than the sf6 and chosen from the group consisting of the fluoro - nitrites, oxiranes polyfluorinated, the perfluorocarbons comprising at least two carbon atoms, and mixtures thereof.