WE HAVE TWO DORMITORY'S, DORM 1 AND DORM 2. DORM 1 HAS A 480/277 VOLT SERVICE. THIS SERVICE WILL FEED DORM 2 THROUGH A 1600 AMP BREAKER. DORM 2 IS NEXT DOOR TO DORM 1 OWNWED BY SAME UNIVERSITY. DORM 2 IS FED BY PVC UNDERGROUNG CONDUITS,AND THERE IS NO METALLIC OR STEEL CONNECTION BETWEEN THESE BUILDINGS. THIS FEED WILL TERMINATE RIGHT TO THE MAIN BUSS IN DORM 2,NO MAIN DISCONNECT. THE DISCONNECT IS IN DORM 1. MY QUESTION IS DO I NEED TO PULL GROUNDING WIRES WITH MY FEEDERS OR CAN I TREAT THE FEEDER AS A NEW SERVICE AT DORM 2. THANK YOU