Ok there Reviewman,
Do you have a real name like mine is Mike?
What you need to do is calculate the lengths of cable runs, based on the type of cable you are using, for the purposes of Voltage drop.
To each DB, there will be a length of cable, encompassing bends, I am assuming that these cables will be run in "free air" and not inside conduit, PVC or otherwise?.
I am also assuming that you use metric sizes of cable and wire sizes where you are. (ie: mm2)
That would make things a lot easier from this end.
My question in the first place is, what do you have available as far as current capacity of the Main Switchboard?, as in Amperes?, is it 3 Phase?.
Is this a new installation or an upgrade from what is already there, if so, what is the current connected load?.
How much load can you put on the current Power Company lines?.
How are these individual customers going to be metered for the use of thier power?.
Sorry about all the questions,but I work for a local Power Company and we like things to be all in order before we connect.