What is the minimum spacing between power limited fire alarm circuits and high voltage conductors?

The minimum spacing of 2 inches between power-limited fire alarm circuits and high voltage conductors is established to prevent any potential interference or electrical shock hazards. This distance is critical because it helps to ensure that the low voltage circuits, which are essential for the operation of fire alarm systems, remain safe and function properly without being affected by the electromagnetic fields generated by nearby high voltage wires.

Maintaining this spacing is an important safety measure, as it significantly reduces the risk of voltage induction, which can lead to false alarms or failure of the fire alarm system. It also minimizes the chance of accessibility issues for maintenance personnel who may be working near these circuits. Adhering to this standard is essential for compliance with safety codes and best practices in electrical installations.