On Thu, 23 May 2013 10:27:51 -0400, FredMaine
<
fred....@roadrunner.com> wrote:
>
>I power mine off but don't unplug them; but they have new properly wired
>cords, and I don't use power strips. Happily I have outlets all along
>the wall.
>
>>> ... it is a shame of the environmental issues with it.
>
>There was another reason we didn't like halon in computer rooms. Our
>understanding was that it primarily works because it removes the oxygen
>from the air. If you are in there, stuck in there, or passed out in
>there it doesn't leave you in a good place.
We had Halon (not Halotron) in our data centers. I was assigned to
train the staff in the procedure to be followed if the fire alarm went
off. If the "Primary" fire alarm signal went off, you were to leave
the room immediately (we timed the longest exit point at 15 seconds,
walking). The "Primary" alarm was a bell. It would clang for 30
seconds, After 30 seconds, the bell turned off and the "Secondary"
alarm went off. The "Secondary" alarm was an amazingly annoying
warbler. 30 seconds later, the Halon would dump. If you could not
leave the room or there was no fire and either alarm was sounding,
there were "Hold" buttons placed near both doors, and on the middle
row of hardware accessible from both aisles adjacent. Pressing the
"Hold" button for 5 seconds reset the sequence back to the "Primary"
alarm, giving you another 60 seconds either to shut down the alarm
panel, leave the room, or take a lot of deep breaths. If you were in
the room when the halon dumped, you were to "duck and cover" in an
aisle, not at any of the 4 corners of the room. You had to hold your
breath starting when you heard the a/c and power shut off (halon dump
came 1 second later and took only like 6 seconds to dump the entire
container) for at least 20-30 seconds. After the dump was over for
15-30 seconds, you could leave the room, the fire would be out. If you
were unable to leave the room then, and no one opened a door or hit
the "Exhaust" button (located next to the "Hold" buttons) to open the
dampers in the floor and ceiling, you probably were going to pass out
from lack of oxygen. This fire control system was interconnected to
the building's fire control panel. When our panel went into
"Secondary" alarm, the entire building's fire alarms also went off.
When we installed the Halon, we were required to have an OSHA-approved
warning sign on every door, and anyone in the room had to be
continuously accompanied by someone that went through "the training
program". I, for one, was happy when the next data center didn't have
Halon...
Craig