I am currently working in Afghanistan doing construction jobs for the US Military. We just finished a project that included a small office building, 120/208V 400 A MDP, and 125 KVA generator set up. As we are going through our final inspection, the inspector decides to throw his amprobe on the equipment ground going from the MDP to the generator. He got a reading of 5.9A, needless to say he won't sign off the building until it is gone. So I began going through the system trying to find where this was coming from. The ground going between the subpanel inside the building and the MDP was reading 0 amps, all bonding wires and wires going to ground rods also read 0 amps. Only this one section of wire was coming back with a reading of any amperage. The nuetral and ground are bonded inside the alternator of the generator. And my system has an Ohm reading of less than 5 ohms, so I know the grounding system is sufficient. Now here is the kicker, remember how I said there is no amp reading on the ground wire from the subpanel inside the building to the MDP, only the ground from MDP to generator.......when you put your amprobe on that ground, and you turn off all the lights in the building.....it goes away completely. 0.0 amps! The building is using lithonia T-8 high efficiency electronic balast lights from the states! Can anyone shed some info on this???