On Thu, 23 May 2013 06:10:59 -0400, "J.B. Wood"   
    wrote:   
      
   >On 05/22/2013 03:38 PM, Tom Biasi wrote:   
   >> I was just asking to see if you determined (measured) the 120° correctly.   
   >> No offense intended.   
   >> Tom   
   >   
   >Hello, and I did measure the L1-L2 voltage with a VOM and it indicated   
   >207.8 VAC.  The L1-N and L2-N measured 119.7 VAC.  The remaining slot on   
   >the twist-lock receptacle doesn't appear to be connected to anything.   
      
   Is that the third leg, just dead?   
      
   >I'm also assuming the slot I identified as neutral (N) isn't a ground   
   >wire since for that case the receptacle would be intended as only a 208   
   >VAC single-phase outlet.  Sincerely,   
      
   Why would you assume that there is a neutral but not safety ground?   
   Why not 208?  Maybe I missed something in the discussion above but it   
   makes no sense to have two phases of a three phase 'Y', with no safety   
   ground.  Single phase 208V w/ground doesn't seem to be nearly as   
   far-fetched.  Can you open the receptacle?  Perhaps there is a clue in   
   there (a ground would normally be either green or bare).   
      
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