What are the specific measures for live fire extinguishing of fire equipment?

Update:09-03-2022
Summary:

1. Use a gas or dry powder fire extinguisher to put out […]

1. Use a gas or dry powder fire extinguisher to put out the fire
For small and large-scale live equipment or line fires, direct jetting can be used with carbon dioxide, 1211, FM200 or dry powder fire extinguishers. In view of the complex situation of the fire, in order to ensure safety, personnel and fire extinguishers must be kept away from live equipment and lines to prevent electric shock casualties caused by stepping voltage or discharge gaps.

2. Use the foam tube gun to put out the fire with electricity
It is also very good to use tap water and ordinary protein foam to spray the high-voltage electric furnace through the foam gun, and the resistivity is much larger than that of tap water, which is suitable for extinguishing fires in large power transformers and cable trenches.

3. Determine the voltage of live equipment and lines
The commander of the fire scene should contact the person in charge of the unit or the electrician to understand the voltage of the fire-fighting equipment and lines, determine the small safe distance from the equipment and lines, and then organize the firefighting. For power sources with voltages below 250 volts, wear insulating gloves and cut the wires with insulating scissors.

4. Use a water spray gun to energize the fire
Henan Fire Fighting Equipment adjusted the pump pressure of the fire truck to more than 0.7mpa. After the water flow from the spray gun was atomized, it aimed at the charged target to extinguish the fire.

5. Use a fixed fire extinguishing device to put out the fire
There are three common fixed fire extinguishing devices in power facilities: steam fire extinguishing device; gas fire extinguishing device; sprinkler. After the fire brigade arrives at the scene, the fire chief should ask and check whether the fixed fire extinguishing device is activated. If not, it should be activated appropriately.

6. Use the DC water gun to put out the fire with electricity
In the absence of live fire extinguishing equipment and spray guns, a DC water gun is used to inject the filling water column, and tap water can also be used to extinguish 220kV high-voltage live equipment or line fires.

The specific method is: use a large-caliber water gun, stand 7 meters away from the charged object, the water gunner wears insulating boots, wear insulating gloves, and use point shooting for long-range shooting or water parabola falling on the shooting point.

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