MEDIUM-OR HIGH-VOLTAGE ELECTRICAL APPLIANCE HAVING A LOW ENVIRONMENTAL IMPACT AND HYBRID INSULATION

摘要

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.

主权项

1. Medium- or high-voltage equipment including a leak tight 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, the equipment being characterized in that the gaseous medium comprises heptafluoroisobutyronitrile in a mixture with a dilution gas.