A relative (Luke) is wiring a shed in the country. The power co brought the power to the pole and Luke ran the power from that box (at the meter) underground to the shed where it terminates at a box with breakers. My concern relates to the fact that there is only a single buss bar in that box in the shed. He has both the nuetrals and grounds (from the outlets) hooked up to the same bar, several of them in the same holes. I don't know much about eletrical but didn't think that that was right. Should there be a second bar so that you can separate the grounds from nuetrals? Should that second box on the shed be grounded via a grounding rod? I could use any help....