luckylerado Senior Member Location Lake of the Ozarks 2 They probably only looked at the table and did not read the section. Basically, you need a 2 AWG copper ground wire for a 200 amp service. In Table 250.66, it lists a 4 AWG copper grounding conductor for 2/0 copper or 4/0 aluminum service conductors, which are the sizes used for 200A services. service I've had only one, but that makes me want to use 4 just in case. In the NEC, there appears to be two tables that contradict each other in regard to the minimum sized equipment grounding conductor. Can I come out of the concrete with a bell end and then just run the cable free until it is connected to the top of the panel? The distance may be anywhere from a couple inches to a few feet, depending on where I decide to come in. 1 Has anyone ever had a POCO require 4 to two ground rods for a 200 amp resi. When my feeder enters my house, does it need to be inside conduit on the interior of the house? The panel is in the basement, and I plan on coming either through or over the concrete wall and then down to the top of the panel. I understand that this may not be the standard way of doing things, but I ran cable to my barn this way and it worked great. I will actually lay out the cable, slide one piece of conduit to the center, and then slide conduit from each end and glue them with the wire already run. One of the criteria you need to fulfill is figuring out what size wire for 200 amp service underground. As a reminder, your feeder will be 4 wires, the two hots and the neutral will be 1AL (unless you've de-rated the neutral to 70 or from specific load balancing calculations if that is allowed in your area). JWritten by Edwin Jones / Fact checked by Andrew Wright Running a 200-amp wire from a service panel through a conduit that’s below the ground can be a tricky challenge. 250.66) and a equipment grounding conductor (T. Also, I wouldn't even attempt to pull the cable through that conduit. From NEC 250.122 this requires an 8 CU or 6 Al ground wire as a minimum (or 6CU and 4 Al if you are really running a 110Amp Feeder).
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