Re: Danger! High Voltage!
Not sure what the voltage would be on a UPS for servers, but have to agree with that comment.
Where I worked we built proper high voltage convertors. Everyone, including us softies, had to have safety training which usually included being force-fed some rather distressing photos and watching a video from an external security camera of some men working on a cubicle (with an open door). There was a flash followed by fleeing people, some obviously on fire.
We were then asked how many people were involved, the common answer being three as that was the count of fleeing people.
The fourth person was not seen as they had to be cleaned out in (fried) bits.