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What does a homeowner need to know about residential electrical systems? 

One hundred percent copper wiring is ideal wiring material for home construction. Special electrical receptacles -- ground fault interrupters (GFI) -- are placed in all bathrooms and on the home's exterior. The GFI trips the breaker in 1/200 of a second to ensure instant and total safety in case of an accident (i.e., a dropped hairdryer or electric shaver in a sink of water).



Dr. Ronn Phillips, Arch.D., and Bobbi Hauptmann, Environmental Design, College of Human Environmental Sciences, University of Missouri-Columbia









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