Something I recall in a local hospital are the color of the wall plugs.
If my memory serves me there are 3 colors
1. White (regular
power)
2. Blue (fails over to generator
power with delay)
3. Red (always powered through
UPS then generator without delay)
It was explained to me when there's a patient who's on some equipment that can't be interrupted for any reason, it goes in the red
plug, but almost everything else goes in the white
plug because many of the standard issue hospital thingies (heart rate, blood oxygen, IV pump) have a battery in them anyway because they need to work in ambulances and while walking down hallways and the side
effect is a
power outage isn't a big deal.
Could an intermediary idea for your backup
system have these types of plugs added and you could determine the dozen or two or three
LED theatrical fixtures that would be included in the failover to generator
system which would all be fresh
wire pulls and leave the existing infrastructure the same?