Re: [TCML] line feed/generator feed neutral/grnd ?

[Sfxneon@xxxxxxx]

In a message dated 8/28/2008, Tony Greer  writes: 

>>The green wire is also a reference to ground  for GFCI's and provides  a 
dedicated 
>>wire straight back to  earth ground for maximum protection from  
electrocution. 

In a  message dated 8/28/2008, Jim Lux writes:

>Interestingly, GFCIs don't  have a green wire connection.  (consider the two 
wire GFCI on a hair  dryer)
>They work by comparing the current in the two wires, and if it's  more than 
5mA different, it trips.
 
Hi Jim,
 
Very true. A GFCI can function without a grounding conductor. Any imbalance  
of current between the hot and neutral would indicate a leakage to ground  
somewhere and trip the relay. But some NSTs with GFCIs built in won't  operate 
correctly unless the case is tied to earth ground. Not connecting the  grounding 
wire, or connecting the case to the neutral wire will cause  erratic or no 
operation at all, but this is a special case.
 
Tony Greer
 
 
 



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