What type of fire occurs in energized electrical equipment?

The type of fire that occurs in energized electrical equipment is classified as a Class C fire. This classification is specifically designated for fires that involve energized electrical devices or equipment. The primary hazard of a Class C fire stems from the fact that the electrical current can pose a risk of electrocution if someone attempts to extinguish the fire using conventional means.

To safely deal with a Class C fire, it is crucial to de-energize the electrical equipment before attempting to extinguish the fire. If it is unsafe to do so, special extinguishing agents that are non-conductive, such as carbon dioxide or dry chemical fire extinguishers designed for Class C fires, should be used. This classification helps ensure appropriate response measures and equipment are used in managing the risk associated with electrical fires.

Other classes, such as Class A, B, or D, target different types of combustible materials like ordinary combustibles, flammable liquids, or metals respectively, and do not apply to the specific hazards posed by energized electrical materials.