Key characteristics:

Fire resistance: Constructed with materials that can withstand high temperatures and prevent fire spread.  

• Low smoke and zero halogen (LSZH): Emits minimal smoke and toxic gases in case of fire.  
• Shielding: Often includes shielding to protect against electromagnetic interference (EMI).  
• Durability: Built to withstand harsh conditions and long-term use.  

Types:

• Power-limited fire alarm cable (FPL): Used for lower power applications within the fire alarm system.
• Plenum-rated fire alarm cable (FPLP): Designed for use in air ducts and plenum spaces.  
• Riser-rated fire alarm cable (FPLR): Suitable for vertical runs in buildings.  
• Shielded fire alarm cable (FPLR-S): Provides additional protection against EMI.  

Importance:

The integrity of a fire alarm system heavily relies on the quality and installation of the cables. A reliable fire alarm cable ensures the timely transmission of signals, enabling prompt detection and response to fire emergencies.