84. Which extinguishing agent is the best for use on electrical fires?

CO2 is the best extinguishing agent for electrical fires because it is non-conductive and leaves no residue, ensuring safety for energized equipment. Electrical fires require non-conductive agents to prevent shock hazards; CO2 effectively displaces oxygen and avoids damage from residue, unlike dry chemical, foam, or water fog which are either conductive or leave damaging residues.