Class C fires involve energized electrical equipment and are typically represented by a blue triangle symbol. These fires can occur in settings where electrical devices or wiring are present, and they require specific extinguishing agents that are safe for use on live electrical equipment. Common extinguishing agents for Class C fires include carbon dioxide (CO2) and dry chemical extinguishers, which do not conduct electricity. It's important to avoid using water on Class C fires, as it can create a shock hazard.
Class B extinguishers fight Flammable Liquid fires. The extinguisher classes: Class A: flammable solids Class B: flammable liquids Class C: fires involving electrical equipment. These agents don't conduct electricity. No extinguisher is rated as only for Class C fires; you will find Class B-C and Class A-B-C extinguishers. Class D: flammable metals Class K: kitchen fires
An electrical fire is a class "C" fire. A Class "C" fire is actually a class "A" or "B" fire that is caused by electrical current.
Flammable liquids
The class C bottle rocket fires when you pull the lever.
A class C fire is an electrical fire. A class C extinguisher is approved for electrical fires.
General purpose extinguisher, can be used for most fires (except cooking fats)
Flammable oil and gas fires are class B fires, needing a class B extinguisher.
Dry chemical extinguishers are most effective on Class B and Class C fires. Class B fires involve flammable liquids such as gasoline and oil, while Class C fires involve energized electrical equipment. The dry chemical agents work by interrupting the chemical reaction of the fire and can also smother the flames. However, they are not suitable for Class D fires involving combustible metals or Class K fires involving cooking oils and fats.
blue circle
Classes of fire are categorized based on the type of material that is burning. Class A fires involve ordinary combustibles like wood, paper, and cloth. Class B fires involve flammable liquids and gases, such as gasoline or oil. Class C fires are electrical fires, and Class D fires involve combustible metals like magnesium or sodium. Each class requires specific extinguishing methods to safely put out the fire.
A BC fire extinguisher is not suitable for fires involving ordinary combustibles such as wood, paper, or fabric (Class A fires) and fires involving flammable metals (Class D fires). It is specifically designed for flammable liquids (Class B) and electrical fires (Class C). Using a BC extinguisher on Class A or D fires can be ineffective and potentially dangerous. Always use the appropriate extinguisher type for the specific fire class.