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Nesgroup address: misc.consumers.house - Date & Time for the message: Mon, 28 Mar 2005 16:29:28 GMT
/ Author of the message: vze8f3tq@verizon.net (v) |
Title of the message: |
Re: Alternating Current Clarification needed
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Text of the message: |
On 27 Mar 2005 05:09:09 -0800, someone wrote: >It seems to me that if the same wire is always >hot (when the current is flowing), the current is acting as direct >current. > Nah. The black (or red!) wire has a sine wave current in it that alternates back and forth, you might think of it as from plus to minus. Whereas the white wire is supposed to be at ground potential. If everything is perfect, in practice you would USUALLY be ok touching the white - the "stick you finger in the socket" situation, you can indeed USUALLY get away with it when the black has been switched off. You get 120/240 because the red and white are at opposite phases, its 240 between them and 120 from each to white neutral. In theory and code you don't allow anyone to touch the white as their are possible faults where a potential could develope that would cause current to flow. Reply to NG only - this e.mail address goes to a kill file. . |
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Estaplace.com is one the Ceglia Giovanni projects, started on 20 July 2005, and online since 20 August as a real estate platform for listings, mainly operating on the Italian and American/English market in the Internet, Estaplace would like to become the point of referiment for home sellers and home buyers, a site where private owners or real estate agencies can have the possibility to show their offers to the world. Estaplace.com is only one of the Giovanni Ceglia's sites. Everyday Giovanni Ceglia works to improve new Internet tools and services for online marketing and business. Estaplace.com will become the biggest portal for real estate business and investments online.