[AT] grounds

[K7jdj at aol.com]

In a message dated 12/19/2007 4:53:24 A.M. Pacific Standard Time,  
gwaugh at wowway.com writes:
>From what I saw, it was about 20 years ago that  codes relating to 
mobile homes started requiring the four wire hookup for  220V appliances. 

Gene, 

and now I can't remember why it was just mobile homes.  I have  experience 
with ungrounded ranges in homes that should have been grounded.   Lady was using 
a hot mitten to avoid contact with an electrified stove. I know  most 220 
volt newer appliances have a neutral bonding/grounding jumper option  where the 
pig tail connects. If you bound the neutral in the appliance then you  violate 
the code that specifies a single point neutral connection to  ground. So I 
guess "it all depends"  :)

Gary
Renton, WA.
 



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