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The 220 volts for use in stoves, pumps, etc is available because of the 3 wire feed to the house. The red wire is 110 meaured from the white (the neutral) and the black wire is also 110 meaured from neutral. But from red wire to black wire, there is a 220 volt difference; the red and black feeds are 180 degrees out of phase. I've rented houses where the kitchen's two socket outlets would have one wired to the black and the other wired to the red. If two appliances connected to this outlet both had a 'live' spot on them, you could really get shocked touching both at the same time. Not good practice. George Westinghouse was also in on the electric chair thing. He was adamantly against it as he thought it would make the public reluctant to switch from gas lighting to electric lighting. And after much reading through the years, I am quite convinced that it is DC that locks one's muscles but the altenating aspect of AC does not cause a lock up. But I will happily let some one else verify this. I've been to England where 50 cycles is in use and was not bothered by flicker (motion pictures have a 48 cycle flicker rate) but way back when visiting Canada, the 25 cycle AC in use at that time had a decided flicker. Art Art
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