From: tw@dionic.net   
      
   Jon    
     wibbled on Tuesday 09 March 2010 06:41   
      
   > All I need is a dpdt knife switch.  If I was cheap I'd get some copper and   
   > make one myself.   
   >   
   > I just bought an economical manual dpdt transfer switch rated for 100a at   
   > 240vac.  I might have to have the electric company disconnect service so I   
   > can wire it in.   
   >   
   > Don't tell me now I did something wrong.  What?   
   >   
      
   Don't you need 3p (two lives and a neutral)?   
      
   Have you found out how you need to handle the ground/earth connection? Here,   
   in the event of a power failure, the utility earth cannot be trusted, so for   
   a generator hookup, one needs a local earth rod or rods bonded to the   
   neutral of the generator. As the earth loop fault impedance is now too high   
   (typically 100+ Ohms for earth rod impedance) to trip a type B or C breaker   
   in a timely manner, an RCD (you call them GFCI I think) must also be   
   employed). What does your code say?   
      
   --   
   Tim Watts   
      
   Managers, politicians and environmentalists: Nature's carbon buffer.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)