A Class C fire involves flammable gases or electrical equipment. These fires can occur in settings where electrical appliances, wiring, or gas sources are present. Common examples include fires caused by malfunctioning appliances or gas leaks. To safely extinguish a Class C fire, it is crucial to use the right type of fire extinguisher, specifically one rated for electrical fires, such as a Class C fire extinguisher. Water should never be used, as it can conduct electricity and worsen the situation. Always ensure that the power source is turned off before attempting to fight the fire.