Someone help me get something thru my thick head. I inspected a 1200 amp 480/277 service today. The main has GFCI protection built-in and a C.T. on the neutral buss. The bond strap is factory installed from neutral to can/equipment grounding bar. I questioned the connection point of the grounding electrode conductors. My thinking was that they should be ahead of the CT so any currrent flow would not show as an inbalance. The factory advises the gr. electrode are always connectd AFTER the gf CT. I can't get thru my head why that is.