What is the function of a heat detector in a fire alarm system?

Heat detectors play a crucial role in fire alarm systems by sensing temperature changes within the environment. Their primary function is to detect an increase in temperature that may signify the presence of a fire. Unlike smoke detectors, which respond to smoke particles in the air, heat detectors are designed to activate when a predetermined temperature threshold is exceeded or when there is a rapid rise in temperature.

By focusing on temperature changes, heat detectors can be particularly effective in environments where smoke may not readily be present or could be difficult to detect, such as kitchens or garages. This ability enhances the overall safety and responsiveness of a fire alarm system, ensuring that potential fire incidents are identified promptly based on the heat generated by a fire.

In essence, the proper functioning of heat detectors is essential for timely fire detection, which can help prevent damage and ensure safety in a variety of settings.