Spr 2019 cbrc: alteration to electrical system in an existing 1-story masonry commercial/industrial building used for office, warehouse, and meat processing operations. work includes removal of the existing 1200a 120/240v b-phase high-leg electrical service and installation of a new 2000a 277/480v 3-phase 4-wire electrical service. existing active loads to be transferred to the new electrical system. all breakers to be labeled to indicate load served. spare breakers to be turned off and labeled spare. no change to occupancy, building area, building height, number of stories, or life-safety exiting. no accessory structures included. occupancy groups b, s-1, f-1. type iiib construction.