Elect One Line 11x17_2024-04-29.pdf

This document comprises electrical one-line diagrams for a normal power system and essential electrical system serving a building facility in Aurora, Colorado. The diagrams illustrate the complete electrical distribution architecture including feeders, transformers, switchgear, and branch circuits across multiple buildings (North, South, East, and Center facilities) and areas including parking structures and visitor centers.

The normal power system diagrams depict incoming utility service through multiple transformer stations feeding various building loads. The essential electrical system diagrams show backup power distribution, likely connected to emergency generators, serving critical loads designated as essential. Both systems include detailed transformer and feeder schedules identifying equipment specifications, voltage ratings, and circuit configurations. The drawings incorporate flag notes addressing specific installation requirements, voltage specifications, and operational details. Key system components include primary and secondary distribution networks, step-down transformers at various voltage levels, and individual circuit protection and metering equipment. The electrical infrastructure is designed to serve the facility's operational and emergency power requirements with redundancy and sectionalizing capabilities to isolate loads as needed.