[RE-wrenches] AC voltage in North America

[Marco Mangelsdorf]

I just don't understand it.

 

Lots of people-from reporters to homeowners-consistently refer to the AC
voltage in their homes as "110/220."

 

Where does this come from?

 

If North American utilities were putting out power at that voltage range,
they would be in serious trouble.

 

Anyone able to educate me on this matter?

 

marco

 

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