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Class C fires specifically refer to those involving energized electrical equipment. This classification is important because the presence of electricity adds a different level of hazard and risk when dealing with these fires. Using the wrong type of firefighting agent, such as water, can not only fail to extinguish the fire but can also create an additional hazard of electrical shock. Therefore, when fighting a Class C fire, it is essential to use appropriate methods and extinguishing agents that are designed for electrical fires, like carbon dioxide or dry chemical extinguishers, to ensure safety and effectiveness.

The classification of fires is important for firefighters to understand because it influences the tactics and equipment they use. The distinguishing features of Class C fires, such as the risk of electrocution and the requirement for non-conductive extinguishing agents, make this classification critical in fire safety and firefighting protocol.