Haylon. We still have a system like that at work for some reason
(the current excuse is that there is an I/O board in there for a
current loop system) left over from the days when a VAX lived in there.
We are required to evacuate the building if it ever goes off, Halon
is a chloro-fluorcarbon of some sort, and once you breath it in, it's
very difficult to get it back out of your lungs -- very dense.
NASCAR and Indycar racing had a couple fatalities with it in the 60's
or early 70's and quit using it in race cars -- tended to extinguish
the driver along with a fire.
Pretty funny that most smartphones have an order of magnitude better
processor performance than a DEC VAX.
Peter
On Dec 4, 2011, at 9:20 PM, Rich Thomas wrote:
I worked in an office once where the middle of the space was a
raised floor glassed-in room with a bunch of PDPs and VAxs in it.
One day someone tripped the fire suppressant (I forget what it was
called, some kind of freon) and it took about 30sec to completely
blow down, alarms going off, etc. It cost a fair amount to replace
it all. No one died but I think the guy who tripped it wished he
were dead.
--R
On 12/4/11 7:09 PM, Walt Zarnoch wrote:
Newer refrigerants are quite inert, so explosion/fire issues
aren't that
big.
The worst problem I can foresee would be if a unit vented the
entire charge
in a closed room, in which case you would have oxygen displacement.
Walt
On Dec 4, 2011 6:51 PM, "Allan Streib"<str...@cs.indiana.edu> wrote:
MG<trainpain2...@yahoo.com> writes:
still don't like the freon circulation.
Why not? A heck of a lot easier to snake copper tubing through
existing
construction than to install ductwork.
Allan
--
1983 300D
1979 300SD
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