[AT] OT: Thank you Farmer

[HaliganBar at aol.com]

Charlie,

Not sure of the specifics of the code requirement but, I will pick Tom's 
brain when we do the job. His brief explanation on the phone indicated that a 
single ground was sufficient provided that the ground was measured to be below a 
certain the ohm value (not sure what that value is). Apparently, the tool to 
measure that value costs approx. $5000. So rather than spent the $5000 most 
electricians just install 2 separate ground rods with the ground wires attached to 
a common point.

Maybe someone else on the list can shed more light on this one.

Karl

In a message dated 8/12/04 8:48:59 PM Eastern Daylight Time, chill8 at cox.net 
writes:

<< Karl,  Farmers check the ground advice is always a good!  Glad you found
 your problem.  I am curious about the new code requiring 2 grounds.  I'm not
 arguing it because I don't know that much about electrical matters but I
 wish someone on the list would explain the logic of that if they know it.
 
 I have always been lead to believe that everything needed to go to a common
 ground to prevent a situation where you have 2 different ground potentials.
 It seems to me that 2 grounds 6 feet apart would be dangerous under the
 right conditions.  If some one understands this please explain.   I might
 need to hook a modem to my tractor some day.  grins. >>