Comment by mikewarot

Interesting but just not practical, especially when there is a well proven system in use.

I get that we don't want SF6 released unnecessarily, but grid components need to be reliable, and a breaker that could turn into bomb if it loses temperature control seems loke a very bad idea.

PS: I had a small amount of SF6 injected into my eyeball a few years ago, and it helped save my sight.