What is classified as a special extinguishing system?

Carbon dioxide systems are classified as special extinguishing systems because they utilize carbon dioxide gas to suppress fires, particularly those involving flammable liquids and electrical equipment. The way carbon dioxide systems work is by displacing oxygen in the environment, effectively smothering the fire and preventing it from continuing to burn. This method is particularly effective in situations where water-based suppression methods might cause more harm, such as with electrical fires or in areas with sensitive equipment.

Different types of extinguishing systems serve various purposes, and while water mist, foam suppression, and dry powder systems are also important and effective, they each belong to different categories. Water mist systems use fine water droplets, foam suppression systems create a blanket of foam to cool and smother fires, and dry powder systems are versatile across various types of fires but do not fall under the category of special extinguishing systems in the same manner that carbon dioxide systems do. Therefore, carbon dioxide systems are highlighted as a unique solution tailored for specific hazards.