Originally Posted by
LookingForAJob
So every electrically powered system at an airport has automatic power switching to some backup supply? Really......
All critical systems should be. Systems take line power normally, and if that disappears then there's a battery backed UPS system in place to float the load until the standby generators kick in and the transfer switches kick over. At least that's my experience in every mission-critical commercial environment I've worked at, I wouldn't see critical systems (ILS, radar, ATC etc) in an airport being set up any differently.