On July 26, 2007 at 16:25 repstein@chello.at (Randy Epstein) wrote:
(snip)
Put another way: Between a 120KVA UPS and a gang of experienced firefighters with charged hoses I'd put my money on the firefighters every time.
-- -Barry Shein
You realize the UPS systems we're speaking of are much larger? Usually 480 volt, many kVA.
FWIW, do you imagine that's terribly large for urban firefighters in the big scheme of things, not just computer rooms? My memory could be wrong but I remember the John Hancock building, 60 stories, pulls about 1.5MW...I remember Boston Edison mentioning this in discussing a design I was working on of a supercomputer facility, that we were asking for more power than the hancock building which was ok but it presented..."challenges". Factories can pull a lot of power also (that room was never built.) Anyhow, once you're beyond a pea-shooter I don't think procedures for firefighting vary a whole lot, other than some outliers. -b