Which type of fire extinguisher is used for fires involving live electrical equipment?

The choice of a Class C fire extinguisher for fires involving live electrical equipment is correct because these extinguishers are specifically designed to safely combat electrical fires without posing additional risks. Class C extinguishers contain non-conductive substances, such as carbon dioxide or dry chemical agents, that effectively smother fires fueled by combustible materials and electrical sources.

Class A extinguishers are meant for ordinary combustible materials like wood and paper, making them unsuitable for electrical fires due to the risk of conducting electricity. Class B extinguishers are for flammable liquids and gases, while Class D extinguishers are used for combustible metals, which are not relevant in the context of electrical fires. Therefore, the use of a Class C extinguisher is essential when dealing with fires involving live electrical equipment to ensure safety and effectiveness in extinguishing the flames without risking electric shock.