Which type of fire extinguisher is typically used for electrical fires?

The CO2 extinguisher is specifically designed for use on electrical fires because it effectively displaces oxygen and cools the burning material without leaving any residue that could damage sensitive equipment. CO2 is a non-conductive medium, making it safe for use on energized electrical equipment. This is crucial in situations where other types of extinguishers might introduce moisture or other substances that could pose an additional hazard or cause equipment failure.

In contrast, water extinguishers can conduct electricity, making them highly dangerous if used on electrical fires, as they can lead to the risk of electric shock. Foam extinguishers are effective for flammable liquids but are not suitable for electrical fires due to their water content. Powder extinguishers, while versatile and effective for a range of fire types, may not be the best choice in environments with sensitive electrical components as they can leave a mess and may cause damage. Thus, CO2 extinguishers remain the preferred choice for safely tackling electrical fires.