CheckItOut Posted April 21, 2011 Report Share Posted April 21, 2011 ie a separate ground wire vs. two hots and a neutral. House was built in 1953 but has breakers now and I'd guess the panel boxes were replaced in the 70's. Trying to figure out what year the four wire was required vs. three. Quote Link to comment Share on other sites More sharing options...
Douglas Hansen Posted April 22, 2011 Report Share Posted April 22, 2011 1918 Douglas Hansen Quote Link to comment Share on other sites More sharing options...
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