Bill Dube via EV wrote:
I can think of no modern commercial appliances that require that neutral be at
ground potential.
Pretty much all gas furnaces, water heaters, electric stoves, and other
appliances that "prove" flame before they will open the main gas valve.
The gas pipe is always grounded. A test probe is inserted into the pilot
flame. High voltage AC (from AC hot) is applied to this probe through a
very high impedance. If flame is present, it acts like a rectifier. The
circuit detects the resulting rectified voltage to insure that a flame
is present.
--
Failure is only the opportunity to begin again more intelligently.
-- Henry Ford
--
Lee Hart's EV projects are at http://www.sunrise-ev.com/LeesEVs.htm
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