[Amps] 220V wiring: Was Question about safety ground connection

[TexasRF@aol.com]

In a message dated 11/17/2005 11:38:44 A.M. Central Standard Time,  
Gudguyham at aol.com writes:


In a  message dated 11/17/2005 11:07:49 AM Eastern Standard Time,   
w9ac at arrl.net writes:

Perhaps  120VAC devices were more  prevalent then or 
the tap arrangement was too  complex?  Recent  amps designed for use with 
either 120VAC or 240VAC  do not appear to  share this issue.  Anyone know 
what 
the difference   is?

Paul, W9AC 



Modern amps that have 240v operation fed  with (hot-hot-bond) setup use the  
centertap of the dual primary as  the "nuetral point" NOT the home nuetral 
from  
the electrical  system.  This eliminates the "lost nuetral" problem with the  
 
120v from the different phases  senario.
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And, it also allows the equipment to work in foreign countries with two  wire 
240v -0 or three wire 240v -0 -0 service.
 
73/k5gw