[114798] in North American Network Operators' Group
Re: Why choose 120 volts?
daemon@ATHENA.MIT.EDU (Chris Adams)
Tue May 26 19:53:45 2009
Date: Tue, 26 May 2009 18:51:42 -0500
From: Chris Adams <cmadams@hiwaay.net>
To: Joe Greco <jgreco@ns.sol.net>
Mail-Followup-To: Chris Adams <cmadams@hiwaay.net>,
Joe Greco <jgreco@ns.sol.net>, Seth Mattinen <sethm@rollernet.us>,
"nanog@nanog.org" <nanog@nanog.org>
In-Reply-To: <200905262039.n4QKdU4g095452@aurora.sol.net>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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
> a transformer of an appropriate size, or does anyone already have the
> part number for something that can provide a few hunderd milliamps of
> 120V from 208? :-)
Isn't 208V usually provided as a connection across two phases of a 3
phase circuit? In that case, you get 120V by going between one phase
and neutral (no transformer required).
You need a NEMA 14 (4 wire) connector to get two phases, neutral, and
ground (provides 1 208V circuit and/or 2 120V circuits) or a NEMA L21
(5 wire) connector to get all three phases, neutral, and ground
(provides 3 208V circuits and/or 3 120V circuits).
--
Chris Adams <cmadams@hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.
