What is the purpose of a mechanical guard for detectors and appliances?

A mechanical guard for detectors and appliances serves to protect these devices from mechanical damage. This is crucial in environments where equipment may be exposed to the risk of being struck or subjected to accidental impacts, such as in industrial settings or areas with high foot traffic. By utilizing mechanical guards, the integrity and functionality of the detectors and appliances are preserved, ensuring they can operate effectively and reliably in their intended fire alarm and signaling roles. Protecting against mechanical damage helps maintain the performance standards required by the NFPA National Fire Alarm and Signaling Code, contributing to overall safety and performance.