I never thought of that, Jon, obviously you know a hell of a lot more
about it than I do (a little knowledge is a dangerous thing). But now, if
others will bear with me, I'd like to indulge my curiosity. I am 99% sure
my dryer has a three prong plug. So does my electric stove. Certainly,
each has 110 v circuits for things like the lights, so the three prongs
must be 110, 110, and neutral. Neither appliance has a separate ground.
Other possibilities are:
there is a transformer in the dryer to run the lights
or they are using a 220V bulb.
As far as I know building code says that you must have a ground, so there
wouldn't be a neutral on a 3 wire interface.
I'm curious to hear more!
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