What is the first action to take in the event of an electrical fire?

Using sodium bicarbonate to extinguish an electrical fire is the appropriate first action because sodium bicarbonate, or baking soda, can effectively smother flames caused by electrical equipment. It releases carbon dioxide when heated, which helps to displace oxygen and extinguish the fire. Unlike water, which conducts electricity and can exacerbate the situation, or other methods that may not be safe or effective, sodium bicarbonate specifically targets the chemical reactions involved in the fire and is safe for use on electrical fires.

In scenarios involving electrical fires, it is crucial to avoid using water as it can result in electric shock or spread the fire. While calling emergency services is important if the fire cannot be controlled quickly, the immediate action should focus on safely attempting to extinguish the fire if it is small and manageable. Therefore, the most effective initial response is to smother the fire with a safe extinguishing agent like sodium bicarbonate.