Any reason for US to switch from 110V to 220V?

Discussion in 'Community Discussion' started by coolwater, Jun 23, 2009.

  1. coolwater macrumors 6502a


    Jun 8, 2009
    I don't see it happening for many reasons, but is there a good reason to switch from 110 to 220? Is 220V really more efficient than 110V?
  2. 7seven7 macrumors newbie

    Jun 19, 2009
    The 220v countries should go down to 110. Power bricks are big enough as they are.
  3. Tomorrow macrumors 604


    Mar 2, 2008
    Always a day away
    A typical residence is already 220V. The only difference is that a 220V circuit uses two poles from the panel, and a 110/120V circuit uses one plus a neutral.

    The only thing to be gained by increasing voltage is to decrease the current (amps) in the conductor, and since most circuits and breakers in a home are already only 15 amps you wouldn't be able to make them smaller by going to 220V.

    It's more a function of the appliance, not a function of the electrical system. In a house, the only things on 220V are things that draw a lot of amps - water heaters, dryers, air conditioning, stoves and ovens. The amount of current going to something like a light bulb is already only a trickle at 110V. Going to 220V won't give you any benefit.

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