What type of fire is classified as a Class D fire?

A Class D fire specifically refers to fires that involve combustible metals. These metals can include substances such as magnesium, titanium, potassium, and sodium, which do not extinguish in the same way as ordinary combustibles or flammable liquids. They can react violently with water or air, making them particularly hazardous and requiring specialized extinguishing agents that are capable of handling metal fires, such as dry powder extinguishers specifically designed for this purpose.

In contrast, the other types of fires mentioned are categorized differently; for example, flammable liquids classify as Class B fires, while electrical equipment fires are categorized as Class C, and ordinary combustibles, such as wood and paper, classify as Class A. Each class requires different approaches and extinguishing agents, highlighting the importance of proper identification of the fire type for effective and safe firefighting measures.