No. I think it's part of the mod - Explosive Explosives. When you're being thrown around, or fall over, the camera automatically just flips into third person. The same happens when I'm being beaten up by Super Mutant Bashers.
Although, I think it does that when you die, without mods, as well. I remember a long time ago venturing down that alley in Seward Square, having no clue what was going to happen. If anything. Next thing the screen goes white and I see my character flying in the air with no arms or legs. It was a pretty spectacular death which I didn't happen to capture, unfortunately :laugh:
http://img375.imageshack.us/img375/5213/36071258.jpg
http://img197.imageshack.us/img197/4950/51951391.jpg
http://img156.imageshack.us/img156/4213/74727446.jpg, better take a photo of it.