Good morning,
I have a customer with an existing building, the electrical was never done. The building is about a year old. All it has is a CT cabinet on the side wall so I assume it was intended to have a single meter. The customer wants to be able to break up into 5 units and a house panel. The building is empty and there are no known loads.
I did a load calc based on square footage and assumed Water heater, ACU/Heat, and show window.
100 amps per unit would suffice. However the customer wants 200 amp panel per unit. This confuses me when sizing the service. I assume(again) that the load served would be 160 amp per unit(200a x 80%=160). This would result in a 960 amp load on the service (160x6=960). I plan to use the CT cabinet as a j-box with lug blocks to connect 3 parralelled 400mcm cu. to each set of 3/0 cu. to feed each meter. Since there are six main disc. I would need no master disc.
I have a customer with an existing building, the electrical was never done. The building is about a year old. All it has is a CT cabinet on the side wall so I assume it was intended to have a single meter. The customer wants to be able to break up into 5 units and a house panel. The building is empty and there are no known loads.
I did a load calc based on square footage and assumed Water heater, ACU/Heat, and show window.
100 amps per unit would suffice. However the customer wants 200 amp panel per unit. This confuses me when sizing the service. I assume(again) that the load served would be 160 amp per unit(200a x 80%=160). This would result in a 960 amp load on the service (160x6=960). I plan to use the CT cabinet as a j-box with lug blocks to connect 3 parralelled 400mcm cu. to each set of 3/0 cu. to feed each meter. Since there are six main disc. I would need no master disc.
