What type of fire extinguisher is appropriate for electrical fires?

A Class C fire extinguisher is specifically designed to combat electrical fires, which can occur in environments where electrical equipment is being used, such as laboratories. The extinguishing agents used in Class C extinguishers are non-conductive, which is critical for safely extinguishing flames without posing a risk of electrocution.

Class A fire extinguishers are suitable for ordinary combustibles like wood and paper, and Class B extinguishers are meant for flammable liquids such as gasoline or oil. Class D extinguishers are intended for fires involving combustible metals, such as magnesium or sodium, which have different extinguishing requirements. Thus, in the context of electrical fires, a Class C extinguisher is the most appropriate and effective choice.