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List:       nanog
Subject:    Re: Why choose 120 volts? When DC will do
From:       "Warren Bailey" <wbailey () gci ! com>
Date:       2009-05-26 21:04:47
Message-ID: 5B3743FC2D0D8B41B27EE4F5EACA79D108970F62 () DTN1EX01 ! gci ! com
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I second that!

----- Original Message -----
From: John Lee <john@internetassociatesllc.com>
To: Seth Mattinen <sethm@rollernet.us>; nanog@nanog.org <nanog@nanog.org>
Sent: Tue May 26 12:56:42 2009
Subject: RE: Why choose 120 volts? When DC will do

What is all this talk about AC. Real data centers use DC. 

John (ISDN) Lee
________________________________________
From: Seth Mattinen [sethm@rollernet.us]
Sent: Tuesday, May 26, 2009 3:39 PM
To: nanog@nanog.org
Subject: Why choose 120 volts?

I have a pure curiosity question for the NANOG crowd here. If you run
your facility/datacenter/cage/rack on 120 volts, why?

I've been running my facility at 208 for years because I can get away
with lower amperage circuits. I'm curious about the reasons for using
high-amp 120 volt circuits to drive racks of equipment instead of
low-amp 208 or 240 volt circuits.

~Seth

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