Types of Fire Alarm Cables Every Fire Protection Engineer Must Know
Selecting the correct cable is critical for the reliability of a fire alarm system.
If the cable fails during fire, the entire life safety system can stop working.
According to NFPA 72 National Fire Alarm and Signaling Code, fire alarm circuits must maintain operation during emergency conditions.
Here are 5 commonly used cables in Fire Alarm Systems
1 FR Cable (Fire Resistant Cable)
Can resist fire for a short time
Prevents flame propagation
Used in normal fire alarm wiring
Typical Applications
Fire alarm loops
Notification circuits
Small commercial buildings
2 FRLS Cable (Fire Resistant Low Smoke)
Low smoke emission during fire
Reduced toxic gases
Better visibility during evacuation
Typical Applications
Hospitals
Airports
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