Tag

wiring

• July 20, 2026 · 5 min read

  Fire Alarm Riser Diagrams: What Plan Reviewers Look For

  What actually belongs on a fire alarm riser diagram, and why reviewers check it against your battery calc and device matrix before anything else.

• June 24, 2026 · 4 min read

  Class A vs Class B Fire Alarm Wiring: When and Why

  Understand the survivability difference between Class A and Class B fire alarm wiring, where AHJs actually require Class A, and the real cost tradeoff.