Posted by Janicholson on July 07, 2012 at 14:11:27 from (96.24.99.126):
In Reply to: hey janicholson posted by glennster on July 07, 2012 at 13:48:43:
The use of 220 single phase for powering pumps and welders (and water heaters for that matter) does not '''need''' the neutral. the 220 is across the two hot leads only. The ground is thus not used (and the well man is correct, well water is always mineralized and very conductive right to the water in that casing. Even plastic casing with entry holes or a screen section has way enough ""ground"".) At the controls (pressure regulators and circuit protection (today) there is Ground Fault protection. It is also well covered and terminals are internal to avoid shock risk. I had a 500 foot well (depth of casing) with water at 425' it also was 2 wire. The expense of an additional strand of copper is not needed, at least in Montana where that well was located. 450 feet if plastic pipe is sure a pile!!! Jim
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