Dry powder fire extinguisher is a kind of common household and commercial fire extinguishing equipment. Its use range is very wide. Dry powder fire extinguisher can be basically solved in daily fire. Many families also have dry powder fire extinguisher. But do you know how to use dry powder fire extinguisher? What are the precautions? Today, I'd like to introduce the use of dry powder fire extinguisher and precautions.
1、 Usage of dry powder fire extinguisher
1. Inspection validity
Before use, it is necessary to check whether the fire extinguisher is out of date in case of failure to extinguish the fire. There is a production date and a valid period at the bottom of the bottle body of the dry powder fire extinguisher.
2. Determine the ignition point
After confirming the ignition point, take the dry powder fire extinguisher to the scene
3. Open the safety pin
After arriving at the scene, shake the fire extinguisher left and right and upside down to make the dry powder loose enough to achieve the maximum fire extinguishing effect, and then open the safety pin
4. Select fire fighting position
At the ignition point of about 2 meters, the left hand holds the nozzle from the side to the root of the flame, the right hand holds the fire extinguisher, and then presses the pressure handle, the dry powder can be ejected
5. Quickly spray left and right to eliminate open fire
When using dry powder fire extinguisher to spray, it is necessary to spray from the flame to the left and right as far as possible, until the flame is driven out of the ignition point, and then continue to spray until the flame is completely extinguished
6. Multiple fires
If there are multiple ignition points, first put out the flammable and explosive ignition points such as electrical appliances and gas, and then put out other ignition points
7. Stop using
When the fire is put out, the use of the fire extinguisher can be stopped, and the spraying can be stopped by lifting the pressure handle
2、 Precautions for using dry powder fire extinguisher
1. Keep upright to extinguish fire
When using dry powder fire extinguisher to extinguish fire, it should be used upright. Do not use dry powder fire extinguisher horizontally or upside down, so as to avoid failing to spray out
2. Do not clench the upper handle
Do not hold the handle tightly before use, to avoid that the safety pin cannot be pulled out or the dry powder can be sprayed directly
3. Keep a distance when extinguishing fire
A certain safety distance should be kept when extinguishing the fire to avoid personal injury caused by too close flame
4. Injection position
When putting out a fire, it is necessary to aim at the root of the flame as much as possible, so that the effect of extinguishing fire will be better
5. Check the pressure gauge regularly
The dry powder fire extinguisher is generally valid for about 5 years. It should be used within the validity period. At the same time, the pressure gauge of the fire extinguisher should be checked regularly. If the pressure gauge is abnormal, it should be inspected and repaired
6. Once opened, it must be refitted
No matter whether the dry powder fire extinguisher is used or not, once the dry powder fire extinguisher is opened, the dry powder of the fire extinguisher needs to be reloaded before it can be used normally.
