31 May
2004
31 May
'04
11:35 a.m.
On May 29, 9:12, John Boffemmyer IV wrote:
Ah yes, flooding. Water and 20A 120 don't like
mixing too much.
[...]
You guy's stories are more interesting though as
per the capability
of
larger loss and a lot more water. Just thought I'd
contribute my
little bit.
We were lucky; the concrete floor slopes slightly towards the aircon
and the water level didn't reach any electrical circuits. If it had
been an inch or so higher, it could have shorted all the circuits.
Let's see, that's 3 phases times 8 (IIRC) dual sockets, each on a 30A
240V circuit. The UPS wouldn't have helped much, its 3-phase 6 x 30A
circuits terminate in sockets bolted to the same concrete floor. Of
course, the UPS won't actually supply 3 x 180A, more like 3 x 48A;
similarly the raw mains isn't 3 x 240A, more like 3 x 100A.
--
Pete Peter Turnbull
Network Manager
University of York
31 May
31 May
12:03 p.m.
thankfully we never got water under ours.... we used to stash stuff there we
did not want to clutter the main part of the room and arranged it so that it
would "duct" the air to the equipment bays that needed it!
Thanks Ed Sharpe archivist for SMECC
Please check our web site at
http://www.smecc.org
to see other engineering fields, communications and computation stuff we
buy, and by all means when in Arizona drop in and see us.
address:
coury house / smecc
5802 w palmaire ave
glendale az 85301
----- Original Message -----
From: "Pete Turnbull" <pete(a)dunnington.u-net.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk(a)classiccmp.org>
Sent: Monday, May 31, 2004 4:35 PM
Subject: Re: Computer flooring/flooding/water in computer rooms
On May 29, 9:12, John Boffemmyer IV wrote:
Ah yes, flooding. Water and 20A 120 don't
like mixing too much.
[...]
You guy's stories are more interesting though
as per the capability
of
larger loss and a lot more water. Just thought
I'd contribute my
little bit.
We were lucky; the concrete floor slopes slightly towards the aircon
and the water level didn't reach any electrical circuits. If it had
been an inch or so higher, it could have shorted all the circuits.
Let's see, that's 3 phases times 8 (IIRC) dual sockets, each on a 30A
240V circuit. The UPS wouldn't have helped much, its 3-phase 6 x 30A
circuits terminate in sockets bolted to the same concrete floor. Of
course, the UPS won't actually supply 3 x 180A, more like 3 x 48A;
similarly the raw mains isn't 3 x 240A, more like 3 x 100A.
--
Pete Peter Turnbull
Network Manager
University of York
7510
days inactive
7510
days old
1 comments
2 participants
participants (2)
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esharpe＠uswest.net -
pete＠dunnington.u-net.com