How should Class C fires be extinguished?

Class C fires involve energized electrical equipment, making it crucial to approach them with caution. The correct method for extinguishing a Class C fire is to first cut the power to the electrical source before using any extinguishing agent. This is vital because using water or other conductive materials directly on an energized electrical fire can lead to severe electrical shock or even electrocution, both for the firefighter and for bystanders.

Once the power has been cut, the fire can be treated as a Class A or B fire, depending on the materials involved. This allows for the use of appropriate extinguishing methods without the risk of electrocution. It’s important to recognize that using dry powder extinguishers is an ideal method specifically designed for electrical fires, but safety must always come first.

Smothering flames or using water directly can lead to dangerous situations, and it is critical to ensure the electricity is turned off before attempting to extinguish the fire to prevent accidents. Therefore, cutting the power establishes a safe environment for extinguishing the fire effectively.