Quote:
Originally Posted by Scootermuze
Huh??
Most of the houses in the U.S. have had 220 power fed to the panel for years..
220 isn't more effective for most household requirements.. Heating, A/C, oven, and dryer are all most households need 220 for.
How could it be more effective for small appliances?
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trasfering 220 voltage is more effective a has lesser amount of power lost during the transfer, you need to treasfer less ampers to do the same watt job (as you surelly know Watts power = Voltage * Ampers).
And it;s not bigger thread when you get hit by it.
For machinery we use 380Volts.
Thats the reason why most od Europe changed to 220. My country did it in 1970's.
BTW US power outlets are one of the most dangerous and less safe is the whole world, the only system I've that allows user to touch the part under voltage.