[ale] Not so evil empire

[jknapka at kneuro.net (JK)]

David Ritchie wrote:
>> Am I correct in believing that a 220AC outlet, such as the one I have in my house
>> for the hot tub, requires at least 2 phases?
> 
> No, it is single phase fed, with a center tapped transformer secondary
> that is (or should be) grounded near
> your service entrance. The two sides of the 220 line are 180 degrees
> out of phase to each other.


But... wouldn't that (having two sides 180deg out) mean there would have
two be two different physical sinewaves on the two sides? Hence two
different phases?

Getting a little confused here...


Thanks,

-- JK