George, you may be correct as to the calculated load not being continuous.
Services are an area where the NEC changes places with the local PoCo rules. It is the practice of our PoCo to treat the calculated load as if it were continuous, and change over to a CT type meter at that point.
Likewise, and service upgrade 200 amps or larger must be approved by their planning department. Again, they need to know what loads theit transformer will be facing.
SInce local PoCo rules vary greatly, I really have to stress the need to talk to them when a job like this one comes around.
