I doubt that you would see a building that has 120 V outlets and a tiny
return. Too much of a chance of loading one phase.
But when the loads are hard wired to 3 phase the return can be small or not
in existance. I remember one military application where the power was a
Reminds me of a boy downhome in the Missouri Ozarks, his folks sent
him off to college to get him educated. Since they had spent so much
money on him, his dad wanted him to impress the locals, so when he
came home, his dad said "Say something smart, Junior!" Junior thought
a while and said "Pie are square" Dad was totally humiliated, "Damn
fool is stupider now than when left, everyone knows pie are round,
cornbread are square".
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