Which fire extinguisher class is designated for energized electrical equipment?

The designation of Class C fire extinguishers is specifically meant for use on energized electrical equipment fires. Fires that involve electrical equipment, such as wiring, motors, and appliances, can be particularly dangerous due to the risk of electric shock. Class C extinguishers are typically filled with non-conductive agents, such as carbon dioxide or dry chemical substances, which allow for safe application on energized equipment without the risk of conducting electricity.

Understanding the classification of fire extinguishers is critical for safety; using the incorrect type can exacerbate the fire or create additional hazards. For example, Class A extinguishers are suitable for ordinary combustibles like wood and paper, Class B is designed for flammable liquids, and Class D is intended for combustible metals. Therefore, recognizing Class C’s focus on electrical fires is essential for effectively responding to such incidents.