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

The use of a CO2 fire extinguisher for electrical fires is based on its ability to safely extinguish flames without conducting electricity. Carbon dioxide works by displacing oxygen in the area of the fire, effectively smothering it, and it does not leave any residue that could cause additional damage to electrical equipment. This makes CO2 extinguishers particularly suited for use on live electrical fires, as they eliminate the risk of electrocution, which could arise from using water or foam-based extinguishers.

Water-based extinguishers can conduct electricity and pose a significant risk in an electrical fire situation. Foam extinguishers, while effective at combating flammable liquid fires, are also not suitable for electrical fires due to the potential for electrical conductivity. D class fire extinguishers are specifically designed for combustible metals, and their application is unrelated to the type of fires involving electrical equipment.