HI there, well I did the install with the advice on here, thank you all!!
i pole mounted 200 amp breaker, the old 3 wire feed to the back of the house from the pole, into a terminal box that splits a feeder into the garage, a feeder into the house, a feeder into a room upstairs above a garage. (terminal box has no ocpd) its just a terminal box, load calculations is all under max amps, ok so the inspectors liked that, as all lines protected to all out buildings. some stuff grandfathered in some not. terminal box is grounded to a ground rod thats all. ok i know needs more...
so heres my question, the garage, the upstairs room i want to run a ground wire to a 8 foot ground rod. one for each panel. space them 6 or more feet each, i want to make each breaker box a 4 wire. (i looked at nec 250, but?) the main house is a 3 wire bonded neutral/ground panel. grandfathered in, i know thats not a main ground return path??, any suggestions on where to ground the wire besides rods?
one inspector said if i take all grounds off each panel for each building old or new and have hot, hot, separate neutral and separate ground using a ground rod for each panel he would sign off, the other said no you cant. and i cant dig up the lines that go to each building. they met code in 1991.there are no pipes, lines etc except a propane copper line to all buildings but its not used as a ground at any location. so any suggestions? im 90% done except for the ground issue. i know im supposed to have 4 wire on all new work. thank you for helping.
