The ABC dry powder fire extinguishing agents are not suitable for all types of fires. They are mainly used to extinguish Class A (solid matter fire), Class B (liquid or meltable solid matter fire), Class C (gas fire), and Class E (live equipment fire). For example, they can be effectively used for solid material fires such as wood, paper, cloth, and plastic. They can also be used to extinguish liquid or gas fires like gasoline, paint, and natural gas. Additionally, due to the insulating properties of their dry powder, they can effectively prevent the spread of fire on live equipment.
However, ABC dry powder extinguishing agents are not suitable for medical fires, which are generally caused by medical equipment, chemicals, etc. At the same time, it cannot be used to extinguish metal fires, because to extinguish metal fires requires the use of special extinguishing agents.
Therefore, when choosing a fire extinguisher, it is necessary to choose the appropriate fire extinguishing agents according to the type and characteristics of the fire. If you are unsure of the type of fire, it is best to consult a professional or fire department for advice. At the same time, when using fire extinguishers, it is also necessary to follow the correct use methods and safe operating procedures to ensure the fire extinguishing effect and prevent the further spread of the fire.