This guy has made several videos like this. It is all a joke.
Now this was no joke. This bastard exploded in my face 3 nights ago. I was pretty damn lucky. Nothing happend to me except a blinding light and 10 minutes or so of ringing ears. Suprised I did not get burned on my hands or face. VFD started ramping up and the ground fault inticator pegged out. I hit to stop button on the drive, and the damn thing exploded. It had a short on A phase. Every thing that is burned, happend in less than a second. There was no fire, just a big ass arc-flash.