Roger, I have to agree with Harold and Thinkgood. Though i realize that utility companys have their own rules and they vary widely across the country, I have always seen the power company install their own GEC to their own ground rods,almost always at the xfrmr or pole.Only one or twice have they tapped to my ground grid but that was on atleast a 250 mcm grid with a minimum of 6 rods ( 4000 amp service). A line voltage meter base ( no ct's)is never dependent on the homeowner's service panel or its ground system in this area. That leads me back to a similar question that Im always questioned on. NEC states that the neutral will be bonded at a point between the source of the derived system and its first means of overcurrent protection. If this is a house service, we bond it in the panel, even though the power company has bonded it @ the xfmr. If we're at a xfmr thats feeding a lower voltage panel ( lets say 480 to 208 ) can I legally bond it at both the xfmr AND at the first 208 panel? Given, Ill still will have the GEC to building steel at the Xfmr. Whats your input?
