nanog mailing list archives
Re: Why choose 120 volts?
From: david raistrick <drais () icantclick org>
Date: Tue, 26 May 2009 23:27:14 -0400 (EDT)
On Tue, 26 May 2009, Joe Greco wrote:
Once upon a time, Joe Greco <jgreco () ns sol net> said:And I don't like not having anywhere to plug in my power screwdriver's recharger... I suppose I should see if I can find someplace that has
Yes, but this doesn't imply that you have access to those other phases. It is easy enough to be delivered 208V single phase service in a data center environment.
Uh. 208v single phase is functionally the same as 240v single phase. You grab 1 hot, neutral off the ground, and you have a common 110v circuit. Even if you're 3 phase to your PDU, it's still single phase to the servers. (specialty gear excluded, but those generally plug direct to the circuit, not to a PDU).
This makes it very very easy to solve this problem, and I keep a few of these floating around at all of my datacenters, with big labels saying who they belong too. (ignoring the fact that for drill charging at least there's usually house power available, but crash carts need these...)
C14 (M) to 5-15 (F) adaptor cable: http://www.cdw.com/shop/products/default.aspx?edc=1036852 I also use them to run wall warts, etc, as needed. --- david raistrick http://www.netmeister.org/news/learn2quote.html drais () icantclick org http://www.expita.com/nomime.html
Current thread:
- Re: Why choose 120 volts?, (continued)
- Re: Why choose 120 volts? Peter Beckman (May 27)
- Re: Why choose 120 volts? Iljitsch van Beijnum (May 27)
- Re: Why choose 120 volts? Joe Greco (May 26)
- Re: Why choose 120 volts? Seth Mattinen (May 26)
- Re: Why choose 120 volts? Chuck Anderson (May 26)
- Re: Why choose 120 volts? Chris Adams (May 26)
- RE: Why choose 120 volts? Dave Larter (May 26)
- Re: Why choose 120 volts? Joe Greco (May 26)
- RE: Why choose 120 volts? Dave Larter (May 26)
- Re: Why choose 120 volts? Seth Mattinen (May 26)
- Re: Why choose 120 volts? david raistrick (May 26)
- Re: Why choose 120 volts? Joe Greco (May 26)
- Re: Why choose 120 volts? david raistrick (May 27)
- RE: Why choose 120 volts? Dave Larter (May 27)
- Re: Why choose 120 volts? Joe Greco (May 27)
- Re: Why choose 120 volts? Pete Templin (May 28)
- RE: Why choose 120 volts? Dave Larter (May 28)
- Re: Why choose 120 volts? Jay Hennigan (May 28)
- Re: Why choose 120 volts? Jay Hennigan (May 27)
- Re: Why choose 120 volts? Seth Mattinen (May 27)
- Re: Why choose 120 volts? david raistrick (May 27)