What is the required height above the floor for non-power-limited fire alarm cables to be installed in a metal raceway or rigid nonmetallic conduit?

The required height for non-power-limited fire alarm cables to be installed in a metal raceway or rigid nonmetallic conduit is 7 feet above the floor. This standard is set to ensure that fire alarm system wiring is protected from physical damage, as installations lower than this height could be vulnerable to accidental contact or impact.

By maintaining this height, compliance with safety regulations is achieved, thereby contributing to the overall integrity and reliability of the fire alarm system. The specific height also aligns with common practices in electrical code guidelines to ensure safe access and functionality in various environments. This height rule helps in separating critical wiring from areas where it may be exposed to tampering or unintentional interference, which is particularly vital for systems designed to save lives in emergency situations.