Which type of electrical installation is primarily designed to notify occupants of fire threats?

The choice of fire warning equipment as the correct answer is based on its specific design and function. Fire warning equipment includes devices such as smoke detectors, fire alarms, and alert systems that are specifically engineered to detect smoke, heat, or fire and notify occupants of a potential threat. Their primary role is to ensure the safety of individuals by providing timely alerts, allowing occupants to evacuate or take necessary actions during a fire emergency.

While alarm systems could encompass broader security measures, their primary function is not limited to fire detection. Similarly, lighting systems and emergency exits are important for safety and navigation during an emergency, but they do not directly notify occupants of fire threats. Lighting systems may assist in safe evacuation, and emergency exits provide a means of escape, but neither serves the specific role of alerting people to the presence of fire hazards like fire warning equipment does.