nanog mailing list archives
Re: Why choose 120 volts?
From: Seth Mattinen <sethm () rollernet us>
Date: Wed, 27 May 2009 15:08:55 -0700
david raistrick wrote:
On Tue, 26 May 2009, Joe Greco wrote:http://www.cdw.com/shop/products/default.aspx?edc=1036852Great, you're the latest person to invent a way to present a 5-15R that offers something besides 120VAC. This is neither new nor novel, but it *is* dangerous and risky, and in no way "solves the problem."No, this does NOT present 208v at a 5-15R. Don't believe me, buy one and put a voltmeter across it.I'll leave the FUD to others.
Here's the L-G voltage off the 208v taps from an isolation transformer in a system with no neutral: http://ninjamonkey.us/not_120_volts.jpg
In other words, in a system with no neutral, it's not designed to do 120v loads. The L-L voltage on that same PDU is 211. Also, the device you linked will present high voltage because again, no neutral.
~Seth
Current thread:
- Re: Why choose 120 volts?, (continued)
- 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)
- RE: Why choose 120 volts? Dave Larter (May 27)
- Re: Why choose 120 volts? Joe Greco (May 27)
- Re: Why choose 120 volts? Joe Greco (May 27)
- Re: Why choose 120 volts? david raistrick (May 27)
- Re: Why choose 120 volts? Chuck Anderson (May 27)
- Re: Why choose 120 volts? Ricky Beam (May 26)
- Re: Why choose 120 volts? Jay Hennigan (May 26)
- Re: Why choose 120 volts? Matthew Moyle-Croft (May 26)