Tag

fire

• October 29, 2026 · 5 min read

  Fire Alarm Wiring Color Code

  NFPA 72 doesn't assign fire alarm wire colors. Here's what the NEC does require, the field conventions techs use for SLC and NAC, and what to record.

• October 20, 2026 · 5 min read

  Voice Evacuation Fire Alarm System Requirements

  What a voice evacuation fire alarm system actually has to do: when it's required, intelligibility, amplifier sizing, backup power, and what AHJs ask for.