nanog mailing list archives
Re: Why choose 120 volts?
From: Ulf Zimmermann <ulf () Alameda net>
Date: Tue, 26 May 2009 18:06:49 -0700
On Tue, May 26, 2009 at 12:39:10PM -0700, Seth Mattinen wrote:
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
I love 208V but I have to fight almost everytime with our datacenter provider. They got 50 or so "Colo's" which are all cookie cutter. Then there is our datacenter, the only facility where they can deliver 3-phase and monitor actual power usage. Everytime when we ask for 3-phase it is a fight now. Our latest circuits (50-amp although we won't use more than 16A under normal use (A+B load)), took me 9 months to get out of them. :-( -- Regards, Ulf. --------------------------------------------------------------------- Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-865-0204 You can find my resume at: http://www.Alameda.net/~ulf/resume.html
Current thread:
- Re: Why choose 120 volts?, (continued)
- Re: Why choose 120 volts? Jay Hennigan (May 26)
- Re: Why choose 120 volts? Matthew Moyle-Croft (May 26)
- Re: Why choose 120 volts? Leen Besselink (May 28)
- RE: Why choose 120 volts? Warren Bailey (May 28)
- Re: Why choose 120 volts? Seth Mattinen (May 28)
- Re: Why choose 120 volts? Jay Hennigan (May 26)
- Re: Why choose 120 volts? Paul Vixie (May 26)
- Re: Why choose 120 volts? Ricky Beam (May 26)
- Re: Why choose 120 volts? Ronald Cotoni (May 28)