Based on 2014:
I was reviewing my code book and got to thinking about duplex service conductors and I did my own practice load calcs and here is what I came up with.
1.Unit A & B each calculated load is 67A and 62A
2.Minimum service rating for each is 100Amps based on 230.79(C)
3.Single overhead riser conduit with single set service conductors is based on 129 amps
4.Based 310.15(b)(16) my over head service conductors are based on the calculated load of both units 129 amps = #1 copper conductors
Am I correct?
Or size of the service conductors is based on the main over current protection times two (so 200Amp and use 3/0)