GAS-INSULATED MEDIUM-OR HIGH-VOLTAGE ELECTRICAL APPARATUS INCLUDING HEPTAFLUOROISOBUTYRONITRILE AND TETRAFLUOROMETHANE
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Feb 12, 2016
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Feb 13, 2015
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The present invention relates to medium- or high-voltage equipment comprising a leaktight enclosure in which there are located electrical components and a gas mixture for providing electrical insulation and/or for extinguishing electric arcs that are likely to occur in the enclosure, the gas mixture comprising heptafluoroisobutyronitrile and tetrafluoromethane. Electrical components covered in solid dielectric layers of varying thickness are located inside the leaktight enclosure of the equipment of the invention.
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