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Reversed Polarity Danger To the Editor: I have just read "Plug-In Electrical Testers" (12/95), by Rex Cauldwell. The section that addresses reversed polarity seems to assume that all the plugs that go into a receptacle are polarized. Otherwise, saying that a receptacle is miswired with reversed polarity is irrelevant, because you could simply pull out a plug, twist it 180 degrees, and plug it back in and you would have reversed polarity anyway. So unless the fixture that electrocuted the little girl had a polarized plug, the polarity of the outlet would not be relevant. Marc Sabransky Warrensville Hts., Ohio Rex Cauldwell responds: You're right: That fixture did have a polarized plug. In fact, most plugs today are polarized. The National Electrical Code