As I recall, the common wire is also tied to ground. At least thats the way I
wired my last house.
Charlie Mathews
Randall Young wrote:
> Gerald :
>
> The 220v circuit is completed between the two hot wires. In effect, they
> are 180 degrees out of phase with respect to each other, so if you meter
> from either leg to neutral (or ground), you will see 110v, but across both
> legs you will see 220v. Many 220v connections do include the neutral (eg
> electric dryer outlet), to allow for connection of 110v devices like light
> bulbs and fan motors.
>
> Randall
>
> Gerald Brazil wrote :
> >
> > Why doesn't a 220v circuit need a common? How is the circuit completed?
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