I am currently wiring a commercial building for a national chain of fast food resturaunts. The panels are part of a package that they send out with all of the other materials for the store. they have sent me a distribution panel that has the main breakers for 4 other panels and 2 A/C units. The "DP" panel is a three phase/800amp and the breakers that are in it feeding the other panels are: (1) 400A, (1) 200A, (2) 150A, and (2) 60A (A/C units). They add up to 1020Amps. Is this legal? I can not find anything that says that I can have 1020 amps feeding out of an 800Amp panel in the code book. Am i overlooking something?