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More accurately, domestic electric service in the US is two phase service. Each is ~120VAC referenced to neutral and 180 degrees out of phase with the other. 240VAC is obtained across both ends (with no reference to neutral)
More accurately, domestic electric service in the US is two phase service. Each is ~120VAC referenced to neutral and 180 degrees out of phase with the other. 240VAC is obtained across both ends (with no reference to neutral)