A 95,000 sq ft single-story school — where a standby generator plant first enters this program, and where Article 700/701/702 classification and load-shed transfer switch strategy become real design decisions, not code trivia.
The project brief: a single-story, roughly 95,000 sq ft K-12 school with classroom wings, a gymnasium, and a full-service cafeteria kitchen, served by an 800A, 480Y/277V, 3-phase utility service. What sets this project apart from the baseline office building earlier in this module isn't its size — it's that this school also functions as a designated community emergency shelter, which pulls a standby generator plant, three separate NEC-classified load branches, and a load-shed transfer switch strategy into the design.
This module walks the whole project the way a real design engineer would: the classroom/gym/cafeteria distribution philosophy off the main 480Y/277V switchboard, the classification split between NEC Article 700 (Emergency), 701 (Legally Required Standby), and 702 (Optional Standby) loads and why the cafeteria's walk-in refrigeration lands where it does, a fully worked generator sizing calculation that accounts for motor starting transient — not just steady-state kW, the three-ATS load-shed transfer switch strategy that protects the life-safety branch first, and how egress lighting circuiting differs from a typical office. The full worked numbers, complete bill of materials, and finished design reasoning are part of the unlocked module below.