What is a Fire and Gas detection system?

Fire and Gas (F&G) systems detect fire, smoke, combustible gas, and toxic gas to protect personnel and assets. Components: gas detectors (catalytic bead, infrared, electrochemical for toxic), fire detectors (UV/IR flame, smoke, heat), audible and visual alarms, and automatic responses (deluge activation, HVAC shutdown, isolation valves). F&G systems provide early warning, initiate evacuation alarms, and trigger suppression systems. They may be integrated with ESD systems or standalone. Design considers detector coverage, voting schemes (2oo3 for deluge activation), and SIL requirements for critical functions.