Laryn: Take a look at: http://www.apc.com/products/family/index.cfm?id=14
This would do exactly what you want. Don't bother with the new (Especially at $400), I have an older version picked up off of Ebay here at the house and it runs great. Protects against the UPS failing, and since it's got a network connection I can log into it remotely and actually see the log of when power dropped out on either side. Chuck n0nhj Laryn Lohman wrote: > Thanks for the great posts so far. > > Perhaps I didn't make it clear in my original post--our equipment is > and always has been plugged into the red receptacle. It was installed > by hospital electricians a number of years ago for us, and we are the > sole load on the circuit. It was the recent storm, and presumed > lightning strike, that tripped the AC breaker in the emergency breaker > panel in the penthouse where our stuff is. > > The point of all this is that the breaker tripped, leaving our > equipment with no power <duh hehehe>. So I was proposing a method of > implementing a "backup breaker" in case one breaker trips. My > proposal is that our normal, daily supply would be the white > receptacle. If it goes dead, whether from utility failure or breaker > trip, we have the red receptacle, which will then be ready to feed our > stuff. > > The reason we would not want to be on the red receptacle normally is > that in case of a lightning strike we are potentially left with a dead > red from the strike, and dead white if the utility is down. > Obviously, another strike, after we've switched to the red, kills AC > totally to our stuff. The presumption is that a breaker probably > won't trip, even after a strike, if there's not a load of some sort on > it to complete a path for the "tripping" current. Make sense? > > Eric, I think you're on my line of thinking. Good point on keeping > the greens isolated. > > Laryn K8TVZ > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > >
