Fire alarm cables are crucial components in fire detection and alarm systems, providing the necessary wiring for transmitting signals between different elements of the system. There are several types of fire alarm cables, each designed for specific purposes. Here are the main types and their uses:

1. Non-Shielded (Unshielded) Fire Alarm Cables:
   • Use: Typically used for general-purpose applications within fire alarm systems. They are suitable for smaller installations and areas with minimal electromagnetic interference.
2. Shielded Fire Alarm Cables:
   • Use: Employed in environments with high electromagnetic interference. The shielding helps protect the signals from external electrical noise, ensuring the integrity of the communication within the fire alarm system.
3. Plenum-Rated Fire Alarm Cables:
   • Use: Designed for use in plenum spaces, which are air-handling spaces in buildings. Plenum-rated cables have a special jacket that meets fire safety standards for these spaces. They are suitable for commercial and residential buildings.
4. Riser-Rated Fire Alarm Cables:
   • Use: Suitable for vertical spaces, such as riser shafts and conduits. Riser-rated cables have fire-resistant jackets that prevent flames from traveling up the cable and spreading between floors.
5. Outdoor-Rated Fire Alarm Cables:
   • Use: Intended for outdoor installations, these cables are constructed to withstand environmental elements like sunlight and moisture. They are often used for fire alarm systems in outdoor areas or between buildings.
6. Armored Fire Alarm Cables:
   • Use: Applied in situations where the cable needs additional protection against physical damage or rodent interference. The armor provides a layer of defense, making these cables suitable for challenging environments.
7. Communication Fire Alarm Cables:
   • Use: Used for communication between different components of a fire alarm system, such as detectors, control panels, and notification devices. They facilitate the transmission of signals that trigger alarms or communicate the status of the system.
8. Power-Limited Fire Alarm Cables:
   • Use: Designed to carry limited electrical power to devices within the fire alarm system, such as detectors and notification appliances. They comply with power limitation standards to ensure safety.

Choosing the right type of fire alarm cable depends on factors such as the installation environment, building codes, and system requirements. It is essential to follow local regulations and industry standards when selecting and installing fire alarm cables to ensure the reliability and safety of the overall fire detection and alarm system.