A complete worked fire alarm design for a real K-12 school building — device layout, battery and voltage-drop calculations, riser diagram, and sequence of operations, from occupancy classification through to a finished design.
The project brief: a single-story K-12 elementary school, roughly 45,000 sq ft, with a two-story classroom wing, a combined gymnasium/cafeteria space, a commercial kitchen, and an administrative office suite. Occupancy classification is Educational (IBC Group E), which drives a design philosophy built around fast, unambiguous, building-wide evacuation notification — a deliberate contrast to the defend-in-place approach the Hospital case study uses instead, even though both projects draw on the exact same component vocabulary from Modules 1 and 2.
This module walks the whole project end to end the way a real designer would: detection strategy space by space (including why the kitchen and the gymnasium each need a different approach than a standard classroom), the notification layout and how the school's mass notification capability stays clearly distinct from the fire evacuation tone, a fully worked battery standby/alarm load calculation and NAC voltage-drop check with this project's real numbers, and a representative Sequence of Operations table. The full numbers, the complete bill of materials, and the finished worked calculations are part of the unlocked module below.