What action should personnel take regarding water or foam application?

In fire response situations, particularly those involving electrical hazards, it is critical to prioritize safety and situational awareness before engaging in water or foam application. The presence of electrical sources can make the scenario more dangerous, as applying water to electrical fires without proper verification can lead to severe risks for both firefighters and civilians.

It is essential for personnel to wait for ComEd or appropriate utility personnel to arrive. This allows for the verification of safety conditions, including the de-energization of electrical sources. Without this verification, applying water or foam may inadvertently create additional hazards, potentially leading to electric shock or further complicating the firefighting efforts.

Thus, the action of waiting for utility personnel ensures that firefighting efforts are conducted safely and effectively, minimizing risks and protecting both the responders and the public from potential electrical dangers.