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High-voltage gas-insulated switchgear transformer components Zero emission factorys

CA2976018A1 - Gas-insulated medium- or high-voltage ... present invention relates to a medium- or high-voltage electrical apparatus which includes a sealed enclosure containing electrical components and a gas mixture providing electrical insulation and/or the extinction of electric arcs that may occur inside said enclosure, the gas mixture including heptafluoroisobutyronitrile and tetrafluoromethane.

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