What type of fire extinguisher is suitable for Class C fires involving electrical equipment?

A Class C fire involves electrical equipment like wiring, circuits, or appliances. For fighting these fires, the use of water-based extinguishers is inappropriate, as water conducts electricity and may lead to electric shock or further ignite the fire.

The correct answer centers on using extinguishers that are non-conductive, specifically designed for electrical fires. Carbon dioxide extinguishers work by displacing oxygen and cooling the fire, making them effective against Class C fires. Similarly, dry chemical agents are effective because they disrupt the chemical reaction of the fire without posing a risk of electrical conduction.

Other types of extinguishers, such as foam or those designed for Class A fires (which typically handle ordinary combustibles like wood or paper), do not adequately address the risks associated with electrical equipment. Therefore, utilizing extinguishers that specifically contain carbon dioxide or dry chemical agents is critical for safely and effectively combating Class C fires.