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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: DC power versus AC power
> > Unnamed Administration sources reported that Scott Granados said: > > > > Is 48V DC at the amps present normallyin switch rooms etc enough to cause > > electricucian? I have seen bad things with wrenches dropped across > > batteries even 12 volt car batteries although in this case it was a large > > battery bank in a submarine but I was curious about the 48V sources in > > switch rooms. > > > Electrocution is but one way to die from too many columbs. > Internal burning is a big one. Most people die, not from immediate > cardiac arrest, but rather from kidney/spleen/liver failure as > they try to remove the cooked you parts from your bloodstream, > and clog up. (First responder treatment is multiple saline inputs > to flush you out, and keep flushing you. This via a friend who was > "lit" and lived.) > The only way I've seen anyone die from being shocked is heart failure. This was a very very large AC hit though not DC. > The instantaneous short circuit current available from a CO-grade > battery string is nothing short of frightening. It will easily > turn a 18" crescent wrench bright orange and start spitting the > molten metal around within few seconds. > > I'm surprised you're still around after a sub battery accident. > They're a grade up from most CO's in available current, I'd bet. > Yes, they are I don't recall the amps off hand but it was amazing. It does take a lot of juice though to spin motors that large and run all that equipment considering your primary power source is nuclear also. In my case I wasn't the one who was hit I was a fair distance off and someone working, an electrician, touched a wrench across the terminals on one cell only. For get a few seconds pretty instantly the wrench was gone as well as a better part of his hand and wrist. However, touching both terminals on the cell did not yield a shock which was what made me think and ask the question i the first place. I can't imagine the damage possible though if someone in that setting touched one of the main bus's. > > > > -- > A host is a host from coast to [email protected] > & no one will talk to a host that's close........[v].(301) 56-LINUX > Unless the host (that isn't close).........................pob 1433 > is busy, hung or dead....................................20915-1433 >
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