To know what are the precautions for water-based fire extinguishing agents, we must first understand the fire extinguishing principles of water-based fire extinguishing agents before we can take precautions. Below we analyze some related content.
The fire extinguishing principle of water extinguishing agent
In the fire extinguishing process, when the "water-based fire extinguishing agent" spreads on the surface of the burning material, it will precipitate liquid to cool the surface, and form a water film on the surface of the burning material and a foam layer to seal the surface of the burning material, isolate air and oxygen, and form Insulation barrier, the liquid after absorbing heat vaporizes and dilutes the oxygen content of the air on the surface of the burning material, which suffocates the burning material and prevents the burning from continuing; at the same time, the fire extinguishing agent chemically reacts with the burning material to form a polymer material , The polymer material can effectively inhibit or reduce the production of burning substances, break the combustion chain and prevent combustion. Because the water-based fire extinguishing agent has the dual functions of physical and chemical fire extinguishing, that is, cooling and covering, it also has the function of destroying the combustion chain.
What are the precautions for water-based fire extinguishing agents
1. The spraying distance between the charged object and the charged object should be greater than 1 meter when extinguishing a fire with electricity;
2. After the fire is extinguished, the power must be cut off to clean up the scene. No part of the body shall be connected to the fire extinguishing agent foam when the power is not cut off;
3. It shall not be used in power supply lines exceeding 1000V.