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What's wrong with a 240V outlet that tests at 277V?
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Answered 2007-07-09 16:06:40
What's the reading at the service panel? What do regular 115V outlets read at? What kind of meter are you using? Chances are you have 480/277V 3 phase power to this building. Whoever wired the outlet used a 277V feed, possibly because 240V was not avaliable. You should call an electrician, repair of this problem may involve instalation of a transformer.
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Can you plug a 240V appliance into a 120V outlet?
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