Which class of fire involves electrical equipment?

The correct answer is associated with fires that involve electrical equipment, which are categorized as Class C fires. This classification is crucial because fire extinguishing methods differ based on the type of fire. Class C fires typically include any fire that involves energized electrical equipment, such as wiring, circuit breakers, machinery, and appliances.

Using the wrong type of extinguisher on a Class C fire can be extremely dangerous. For instance, water, which is often used to extinguish Class A fires (those involving ordinary combustibles like wood and paper), can conduct electricity and pose a serious risk to anyone attempting to extinguish a Class C fire. Therefore, the appropriate extinguishing agent for Class C fires is a non-conductive extinguishing agent, such as a CO2 or dry chemical extinguisher, which effectively suppresses the fire without posing additional risks.

Understanding fire classifications is vital for safety and effective emergency response, especially in environments where electrical equipment is in use.