Load calcs

[Edbudrovic]

I have a 600 amp three phase 240 stand up section. It has 6 meter spaces but one is unused and has no socket busswork. Currently in use are 4 100 amp services and a 50 amp house panel.I want to upgrade one of the existing services to 200 amp. I have checked with the manufacturer and have secured documentation that the socket and connecting busswork will support the 200 amps. What load calculation can I use to support this and supporting code sections? thanks

 

[Dennis Alwon]

You would have to use article 220 and calculate the load on the units. Sounds like to me there is no way the service is an issue. Normally we don't add the breakers but in this case adding the breakers doesn't even come to 600 amps so how can there be an issue