This is a follow up to my riser diagram question. The builder I am drawing for is using a 400 amp service coming underground. He plans on splitting the service and running 200 ams in the house and 200 amps in his barn. my question is this. Comming up from the ground with a 400 amp service, what size wire will it be. I know that the 200 amp will be 2/0. Is it correct that the service will come up from the ground, directly into a meter, then go into a dissconnect? then from there will branch off to the two sperate 200 amp services? Will there need to be 2-200 amp disconnects? What size conuit will the 400 amp cable be in, and what size do you use for the 2/0? As a designer, this is new to me. I'm used to it coming off a pole, going to a meter, and right in to the panel in the basement, no disconnect, no conduit, nothing.