Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!decwrl!wuarchive!uunet!keinstr!chaplin
From: chaplin@keinstr.uucp (chaplin)
Newsgroups: sci.electronics
Subject: Re: RMS versus pk-pk (was Re: polarity)
Message-ID: <1991May9.162507.320@keinstr.uucp>
Date: 9 May 91 16:25:07 GMT
References: <11864@jarthur.Claremont.EDU> <12900002@hpavla.avo.hp.com>
Organization: Keithley Instruments, Cleveland, Ohio
Lines: 20

In article <12900002@hpavla.avo.hp.com> devlin@hpavla.avo.hp.com (Lee Devlin) writes:
>For this scheme [polarized line cord plugs] to
>work, the electrician has to have wired the house correctly (left = line,
>right = neutral).
>
>Lee Devlin

Polarized plugs (and outlets) don't know "left" and "right."  They know
"wide blade (hole)" and "narrow blade (hole)."  Hot may be on the left
or the right, depending upon how whoever installed the outlet, or how
your head happens to be positioned relative the the earth.  Regardless,
a properly wired polarized outlet will have hot on the narrow hole and
neutral on the wide hole.


-- 
Roger Chaplin / Instruments Division Engineering / uunet!keinstr!chaplin
CI$: 76307,3506 / voice: (216) 498-2815 / FAX: (216) 248-6168
"In the last analysis the customer is the independent auditor.  In the
merciless light of real use, every flaw will show." - Frederick P. Brooks, Jr.