nanog mailing list archives
Re: Why do we use facilities with EPO's?
From: John Curran <jcurran () mail com>
Date: Wed, 25 Jul 2007 14:19:37 -0400
At 12:07 PM -0400 7/25/07, Leo Bicknell wrote:
The more "urban" an area the more likely it is to have strict fire codes. Typically these codes require a single EPO for the entire structure, there's no way to compartmentalize to rooms or subsystems.
For high-availability sites (Tier III, Tier IV per UpTime Institute), EPO's are one of the most common reasons for outage. I'd highly recommend APC's paper <http://www.apcmedia.com/salestools/ASTE-5T3TTT_R2_EN.pdf> on the topic. Short-version is that its a safety issue for room occupants and responders. More mature codes tend to require such, particularly in the presence of UPS gear which can be energized unbeknownst to fire fighting personnel. If you don't have water-based fire suppression, have normally unoccupied spaces, and are continuously manned, it's sometimes possible to pass on having an EPO. YMMV by inspector. /John
Current thread:
- RE: Why do we use facilities with EPO's?, (continued)
- RE: Why do we use facilities with EPO's? Howard C. Berkowitz (Jul 26)
- Re: Why do we use facilities with EPO's? Tuc at T-B-O-H.NET (Jul 25)
- Re: Why do we use facilities with EPO's? Patrick W. Gilmore (Jul 25)
- Re: Why do we use facilities with EPO's? Warren Kumari (Jul 25)
- RE: Why do we use facilities with EPO's? Alex Rubenstein (Jul 25)
- Re: Why do we use facilities with EPO's? Mattias Ahnberg (Jul 26)
- Re: Why do we use facilities with EPO's? Alexander Harrowell (Jul 27)
- Re: Why do we use facilities with EPO's? Patrick W. Gilmore (Jul 25)
- Re: Why do we use facilities with EPO's? David Lesher (Jul 25)
- Re: Why do we use facilities with EPO's? Brandon Galbraith (Jul 25)
- Re: Why do we use facilities with EPO's? Sean Donelan (Jul 25)
- Re: Why do we use facilities with EPO's? John Curran (Jul 25)
- Re: Why do we use facilities with EPO's? chuck goolsbee (Jul 25)
- Re: Why do we use facilities with EPO's? Mark Radabaugh (Jul 25)
- Re: Why do we use facilities with EPO's? Jerry Pasker (Jul 25)
- Re: Why do we use facilities with EPO's? Jason LeBlanc (Jul 26)
- Re: Why do we use facilities with EPO's? Jerry Pasker (Jul 25)
- Re: Why do we use facilities with EPO's? Seth Mattinen (Jul 25)
- EPO/NEC (was Re: Why do we use facilities with EPO's?) Alex Pilosov (Jul 25)
- Re: Why do we use facilities with EPO's? George William Herbert (Jul 25)
- Re: Why do we use facilities with EPO's? Barry Shein (Jul 26)
- RE: Why do we use facilities with EPO's? Randy Epstein (Jul 26)
- RE: Why do we use facilities with EPO's? Barry Shein (Jul 26)
- Re: Why do we use facilities with EPO's? Barry Shein (Jul 26)