Which class of fire involves energized electrical equipment?

The classification of fires is essential for effective firefighting, especially in distinguishing the appropriate methods and agents to use when battling different types of fires. Class B fires involve combustible liquids and gases, such as gasoline, oil, and solvents. Class D fires are specific to combustible metals like magnesium and sodium, while Class A involves ordinary combustibles, such as wood, paper, and cloth.

Class C fires specifically address incidents involving energized electrical equipment. This is crucial to recognize, as using the wrong extinguishing agent on a Class C fire can lead to electrocution or further spread of the fire. When a fire involves electrical equipment, it is imperative to ensure that the electrical source is de-energized before attempting to extinguish the fire, unless the fire is small and can be handled safely. The extinguishing agents suitable for Class C fires are typically those that do not conduct electricity, such as carbon dioxide or dry chemical extinguishers. Understanding this classification helps firefighters respond appropriately and safely to incidents involving electrical hazards.