On May 31, 2014, at 1:25 PM, Mark J. Blair <nf6x at nf6x.net> wrote:
On May 31, 2014, at 09:05 , Paul Koning <paulkoning at comcast.net> wrote:
The nice thing about Halon systems is that they
would put out fires without endangering the human. Quite unlike their politically correct
replacement, large tanks of nitrogen that would suffocate humans and flames alike.
I thought that the Halon system would extinguish operators, too? The machine room I
worked in at UCI had a Halon system, with a big red abort button next to each door. We
were instructed that if the alarm goes off, either abort the Halon dump (if it was an
obvious false alarm) or GTFO of the room before the dump.
Good advice because it?s not nice to be near a fire. But I thought that Halon would only
amount to a few percent of the room volume, leaving plenty of oxygen. The operation
mechanism of Halon apparently isn?t oxygen displacement (while for nitrogen systems it