nanog mailing list archives
Re: Why choose 120 volts?
From: Peter Dambier <peter () peter-dambier de>
Date: Wed, 27 May 2009 16:20:06 +0200
Brian Raaen wrote:
As a Holder of two different FCC licenses I can tell you voltage is not what kills, it is amps and location that kill. Actually in certain cases as long at you have good electrical isolation, high enough dielectric breakdown voltage, and good grounding higher voltages can be safer and more efficient. Also, Thomas Edison was the one that discovered that trying to deliver DC more than a few feet was not a good idea.
Hi Brian, as a Radio Amateur you should know AC radiates, DC not. We did have really big trouble when when an ocean liner had to pass under a cable bridge and for the passage, that cable bridge had to be grounded. Eddies running through the grid brought half of the grid down. The other half killed my computer with overvoltage. Hydro Que'bec is running DC from the northpole down to South Florida. http://www.abb.com/cawp/gad02181/c1256d71001e0037c12568340029b5c4.aspx?&opendatabase&v=17ea&e=us&m=100a& Apropos, I remember a frenchman who fed his personal computer 288 Volts DC. Theory says no matter whether the setting of the powersupply is 120 AC ord 240 AC it should work. Try at your own risk. I haven't :) Kind regards Peter DL2FBA -- Peter and Karin Dambier Cesidian Root - Radice Cesidiana Rimbacher Strasse 16 D-69509 Moerlenbach-Bonsweiher +49(6209)795-816 (Telekom) +49(6252)750-308 (VoIP: sipgate.de) mail: peter () peter-dambier de http://www.peter-dambier.de/ http://iason.site.voila.fr/ https://sourceforge.net/projects/iason/ ULA= fd80:4ce1:c66a::/48
Current thread:
- Re: Why choose 120 volts?, (continued)
- Re: Why choose 120 volts? Steve Bertrand (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? Jared Mauch (May 26)
- RE: Why choose 120 volts? Dave Larter (May 26)
- Re: Why choose 120 volts? Alex H. Ryu (May 26)
- Re: Why choose 120 volts? Owen DeLong (May 26)
- Re: Why choose 120 volts? Brian Raaen (May 27)
- Re: Why choose 120 volts? Dorn Hetzel (May 27)
- Re: Why choose 120 volts? Peter Dambier (May 27)
- Re: Why choose 120 volts? Michael Thomas (May 27)
- Re: Why choose 120 volts? Peter Beckman (May 27)
- Re: Why choose 120 volts? Iljitsch van Beijnum (May 27)
- 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)