Application of SF6 in transmission and distribution networks

SF6 is essential for the transmission and distribution equipment and switchgear, because of its excellent dielectric, arc quenching, heat transfer and chemical recombination properties.
This has been successfully proven since the 1960s for high-voltage equipment and since beginning of the 1980s for medium-voltage equipment. The size of equipment and switchgear has been significantly reduced since the beginning of the SF6 technology. Nowadays, SF6 technology is even more important to bring bulk power at high-voltage level closer to the consumers as for mega cities.
Moreover, compact SF6 switchgear support applications such as offshore platforms or wind power installations where small sizes and light weights are requested.

In spite of all the technical advantages of the SF6 technology, SF6…