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post #3 of Old 04-10-2007
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Question 220 vs 110 v SP

I'm a tad confused. Are you going to replace the components with 220 v components? For example, a light bulb has a resistance that is constant and draws X amps at 110v. If you appply 220v, it will draw twice that current and burn out really quickly, If your end use appliance is designed for 220v AND has the same power rating, then the current will be halved, and everything should be good to go. Electric motors are something else, but I don't think applying 220 to something designed for 110 is a great idea. If everything on board is DC operated and the SP only goes to a battery charger, then the charger has to be set up for a 220 input and everything is good. IF you are running anything off the AC directly, then "anything" has to be 220v rated. FWIW. I'd like to see New Zealand someday. Gosd luck and good sailing,
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