[TowerTalk] Does prevailing grounding scheme promote large ground loop?

[Dick Blumenstein]

 From everything I've read, the prevailing overall grounding technique 
is to run a heavy duty copper wire from the grounding system around the 
tower, back to the ground rod outside the shack wall as well as to run 
it to the ground rod under where your AC power enters the house.

It just occurred to me that the AC ground wire, besides going into the 
house and connecting to the chassis ground in the breaker box (where 
also all the neutral white wires are connected) then proceeds throughout 
your house and also to your ham radio shack equipment. It is here that 
the ground wire also connects to all the chassis in your shack as well 
as the shields on your coax connectors that also finds it way back 
outside your shack wall to the ground rod; one huge ground loop.  I  
know that there are 2 issues here; RF grounding and lightning 
protection. Any comments about that?

Thanks,

Dick, K0CAT