From: peterwieck33@gmail.com   
      
   > I don't understand how that small voltage drop in the cabling causes an   
   imbalance in current. The earth in all appliances is supposed to be fully   
   isolated from the hot/neutral isn't it?   
      
   A sensitive GF device will detect a difference between flow to the neutral and   
   the ground, and perceive this as current going to ground.    
      
   The ground and neutral are bonded within the main panel, and there is a   
   secondary ground feeding the main panel.    
      
   So, the full path of each circuit Neutral is from each device to the panel,   
   where it is bonded to a local ground. From there to the Utility Transformer -   
   which is also grounded in its location.    
      
   The full path of each circuit Ground is from each device to the panel, where   
   it is bonded to the neutral and a local ground. It stops at the local ground.    
      
   In theory, the Neutral and the Ground should be at equal potential - thereby   
   avoiding false trips - as that is what the GF device is looking for - current   
   going to Ground (or somewhere), not Neutral. If the Ground and Neutral are not   
   at equal potential -    
   there may be something for the GF device to detect.   
      
   Peter Wieck   
   Melrose Park, PA   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)