What is the minimum voltage rating required for communications wires (Coaxial cables)?

The minimum voltage rating required for communication wires, such as coaxial cables, is 300 volts. This rating is established to ensure that the cables can safely handle the electrical demands of the systems they support without risking insulation breakdown or other electrical failures. Coaxial cables are often used in various applications, including video transmission and data communications, and they must be equipped to handle the voltages they may encounter during operation effectively. The 300-volt rating provides a necessary buffer for typical voltage fluctuations in these systems, ensuring reliability and safety in installation and usage. It's essential for professionals in the fire alarm systems field to understand these voltage ratings to choose appropriate wiring for their systems.