Fire alarm systems typically use a variety of wires, depending on their specific requirements and applications.
For example, power wires are used to provide electricity to the system, while communication wires are used to transmit signals between different components of the system.
In general, fire alarm systems require wires that are fire-resistant and can withstand high temperatures. One common type of wire used in fire alarm systems is known as "plenum-rated wire," which has a special coating that is designed to prevent the spread of fire and smoke.
The specific type of wire used in a fire alarm system will depend on factors such as the size and complexity of the system, local building codes and regulations, and the preferences of the system designer or installer. It's important to consult with a qualified fire alarm system professional to determine the appropriate wiring for a specific application.