We have new construction requiring a pair of 200A panels on a wall that is perpendicular the outside wall where a 400A meter base will be located. The inside floor level is at outside grade level. Outside wall is brick. Conduit needs to run from meter base a short distance INSIDE the perpendicular wall that butts the outside wall behind the meter base. A single conduit below the panels with a T would be great but the T would not be assessable and therefore not allowed. Also, I don't believe the code would allow one set of conductors to pass through the first panel but I don't know where to find a pertinent requirement. What is the next best thing to do, please. Many thanks.