XPost: alt.home.repair   
   From: andrew@cucumber.demon.co.uk   
      
   In article <529e1008$0$49510$c3e8da3$fdf4f6af@news.astraweb.com>,   
   	bud--  writes:   
   > On 12/3/2013 8:25 AM, trader4@optonline.net wrote:   
   >>   
   >> And I'm still waiting for an answer why a system with   
   >> two phases that differ by 90 deg is acknowledged by everyone to have two   
   >> phases.  If they differ by 240 deg, that's two phase right?  If they   
   >> differ by 170 deg, that must be two phases, right?  So, what magically   
   >> happens when they differ by 180 deg that suddenly there are no longer two   
   >> phases?   And how do the electrons know?   
   >   
   > For a garden variety split-phase supply (240/120V from a transformer   
   > with a centertap) are there 2 "phases"?   
      
   In maths/physics, you have two phases with a mathematical   
   relationship of -x (or a 180 deg phase shift).   
      
   In electrical distribution, two-phase is a specific jargon term   
   which means something else.   
      
   There's no one right answer - it depends on the context of the   
   discussion.   
      
   --   
   Andrew Gabriel   
   [email address is not usable -- followup in the newsgroup]   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)