That must have been a phenominal gust of wind that blew that branch off the tree, blew all the leaves and twigs off the branch, and then blew what was left higher than the tree itself onto the power line. Luckily someone was there to capture it on video.
Well, I doubt they could throw it up there that perfectly. It's normal for trees to be bare like that sometimes, and it could have been a dying tree...either way I don't care it was damn cool.
Saw a patio umbrella fly into some powerlines last summer, it did that classic electrical fireball explosion, then all the metal ribs in it melted free and rained down onto the cars in the parking lot while the fabric blew along its merry way. Oh how I wish I randomly had a camera running just then