I'm guessing that the 10 kV tree is a temporary thing where they had a broken pole in an inaccessible location, like a swamp. I heard of similar stuff happening during Katrina. Doesn't look like the wire is in any sort of shoe either, it's just tied off to the insulator somehow.
I don't think just one of those bells is rated for 10 kV either, probably needs a string of three, or at least two. Maybe they were just trying to get the wire up out of the road.