> It is my understanding that the RED wire is usually reserved for the opposite phase of 110Vac of the black wire. For wiring 220V outlets, etc.
Red wires are also used in wiring of 3-way or 4-way switches. http://www.handymanwire.com/articles/3wayswitch.html John Radomski Schneider Automation "Robert A. Macy" <macy@california. To: "Stone, Richard" <[email protected]> com> cc: [email protected] Sent by: Subject: Re: home outlet wiring [email protected] 12/01/2005 12:51 PM It is my understanding that the RED wire is usually reserved for the opposite phase of 110Vac of the black wire. For wiring 220V outlets, etc. I've never seen red used as a neutral except in "home" wiring. To bring back to more onto safety topic: I've only seen 1/2 a single outlet wired to a wall switch in residential rooms. That outlet, to differentiate it >from all the normally powered outlets, is mounted upside down. That is, with the ground at the top. My comment is: Great, makes it easy to find which outlet it is, but isn't it dangerous since your fingers can slip down around the plug and pick up HOT wires instead of the GROUND wire? Yes, I know fat fingers, but still if you've done it once, It's enough to convince you of the wisdom of having the GROUND pin at the bottom. - Robert - On Thu, 1 Dec 2005 11:39:39 -0500 "Stone, Richard" <[email protected]> wrote: > hello group, > > Regarding typical USA outlets on the walls, I have seen > an outlet that has: > 1. frame ground > 2. white wire-neutral > 3. red wire-? > 4. black wire-hot > > what is the purpose of the red wire? > on the outlet in question, the red and white wires are > jumpered in the back of the outlet. > > in the room, the wall switch turns off both top and > bottom outlets, normally a wall switch only > affects either the top OR bottom outlet,not both. Also > all 4 outlets in the room are controlled by the one > switch > is the red wire some time of connection between outlets > only and not fed back to the breaker box? that's my > thought. > any ideas on this? > > thanks > Richard, > - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ________________________________________________________________________ This email has been scanned for SPAM content and Viruses by the MessageL abs Email Security System. ________________________________________________________________________ - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
