My customer has a grain elevator about thirty feet away from a large bagging warehouse (he owns both buildings). When he first put up the building the previous electrician fed the 200x100 building with 100 amps of 480v 3 phase. This summer we did a sizely expansion on the grain elevator side of things and i installed a new service and MCC. The adjacent bagging warehouse is fed underground (under concrete) and the pipe was stubbed up convieniently where i placed the new 1200 amp CT can. I decided to feed the old 100 amp panel straight from my ct can instead of feeding it from the new 800 amp mcc. My problem is that my customer has now added 3 motors in the bagging warehouse that are actually part of the milling process for the elevator building thirty feet away. (in a nutshell, its a dust system) Problems- #1. The 100 amp service to this building will not serve the needs of these new motors- furthermore i am going to run into classification issues if i have to change anything related to this service. #2. The equipment needs to be stopped and started from the elevator building anyways.
What nec issues will i run into with this application? I have read 225 and 230 and have a good guess what is going to have to happen but i would like some other opinions. Any insight would be great!
What nec issues will i run into with this application? I have read 225 and 230 and have a good guess what is going to have to happen but i would like some other opinions. Any insight would be great!