Electrical riser diagrams - Bldg 1.pdf

This document is a set of electrical engineering diagrams and schematics for Building #1, depicting power distribution systems across North and South substations with associated riser diagrams and feeder schedules.

The document contains multiple detailed electrical schematics including: North Unit Substation Power One-Line Diagram, South Unit Substation Power One-Line Diagram, Power Riser Diagrams (North and South), and comprehensive feeder schedules. The diagrams illustrate the distribution of electrical power throughout the building from basement to 7th floor, with color-coded circuits denoting Emergency/Life Safety (red), Emergency (pink), Normal (green), and Normal/Prime (blue) power systems. The North and South feeding areas are clearly delineated, with separate feeder routes for Areas A, B, C, and D serving different floor levels. The feeder schedules provide detailed specifications including conductor sizes, voltage ratings, phase configurations, breaker specifications, and amperage ratings for each circuit throughout the building. Additional transformer schedules indicate primary and secondary voltage specifications, breaker ratings, and fusing requirements. General notes specify that the feeder schedule applies to all feeders illustrated in the diagrams, reference existing building aluminum and copper conductors, and note that grounding conductor sizes follow NEC standards applicable to the project.