Medium- or high-voltage electrical appliance having a low environmental impact and hybrid insulation
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United States of America Patent
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Feb 20, 2018
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app pub date -
Sep 9, 2013
filing date -
Sep 10, 2012
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Abstract
The present invention relates to medium- or high-voltage equipment having low environmental impact, including a leaktight enclosure in which there are located electrical components covered with a solid dielectric layer of varying thickness and a gaseous medium for providing electrical insulation and/or for extinguishing electric arcs that are likely to occur in said enclosure, and that comprises heptafluoroisobutyronitrile in a mixture with a dilution gas.
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