Which type of fire extinguisher should be used for electrical fires?

The use of CO2 (carbon dioxide) fire extinguishers for electrical fires is appropriate because they work by displacing oxygen and removing heat without leaving any residue, which is crucial for protecting sensitive electrical equipment. CO2 extinguishers are particularly effective on Class B fires (flammable liquids and gases) and Class C fires (electrical), making them versatile for situations where electrical installations are involved.

Using water or foam extinguishers on electrical fires can be extremely dangerous, as water conducts electricity and could lead to electrocution or worsen the situation. Dry chemical extinguishers can also be used on electrical fires, but CO2 is preferred in certain settings, especially around sensitive electronics, because it does not leave chemical residues that could damage equipment.