Which type of fire extinguisher is specifically designed for extinguishing electrical fires?

The correct answer is CO2, or carbon dioxide fire extinguishers, which are specifically designed for extinguishing electrical fires. CO2 extinguishers work by displacing oxygen in the vicinity of the fire, effectively suffocating it without the residue that could harm electrical equipment. This makes them ideal for use in settings where electrical equipment is present, as they will not conduct electricity and do not leave any mess behind that needs to be cleaned up.

Dry chemical extinguishers, while versatile and effective on various fire types, can leave a residue that may harm sensitive electrical components. Water extinguishers conduct electricity and can pose a significant risk when used on electrical fires; thus, they are not suitable for that purpose. Foam extinguishers are typically effective on flammable liquids and may not be the best choice for extinguishing electrical fires, as they can also create a conductive path for electricity. Therefore, CO2 extinguishers are the safest and most effective choice for managing electrical fires.