Fire Alarm Cause And Effect Matrix (Top)

Fire Alarm Cause and Effect (C&E) Matrix is a logical map used by designers and engineers to define the exact sequence of operations for a fire safety system. It ensures that when a specific device is triggered (the

If (Lobby Smoke) THEN (Close Lobby Doors, Recall Elevators, Sound Alarm on Lobby and Floor 2). If (Lobby Smoke persists for 5 minutes) THEN (Sound Alarm on All Floors). fire alarm cause and effect matrix

The matrix below summarizes key causes and their direct effects. Each cause is rated for severity (1–5, where 5 is catastrophic) and likelihood (1–5, where 5 is highly probable). The Risk Priority Number (RPN) = Severity × Likelihood. Fire Alarm Cause and Effect (C&E) Matrix is

• Detection Criteria: Manual activation
• Alarm Class: Fire Alarm
• Notification: Immediate local zone and building evacuation signals
• Controls: Same as smoke detector alarm controls for that zone or building-wide per design
• Verification: Optional 30s verification for single station (if allowed by code)
• Reset: Manual reset at FACU

Note: Adapt severity and likelihood scores to your building’s occupancy type and local fire codes. Note: Adapt severity and likelihood scores to your