subject: Knowledge Of Fire: How To Correctly Use Fire Extinguishing Agent And Fire Fighting Equipment - Dry [print this page] Fire Equipment Is special equipment for disaster relief. Commonly used fire equipment have Fire Hydrant Fire Hose , Water gun , Fire extinguishers, fire buckets and so on. These devices use the opportunity to quite small, but he did not move.
(A) the right choice Extinguishing agent :
By burning material and the characteristics of fire is divided into A, B, C, D four categories: A class that combustible material fires; B class, a liquid fire and the melting of solid material fire; C class, that combustible gas fire; D class, that combustible metal fires, such as potassium, sodium, magnesium, titanium, lithium, aluminum and other material fire; should be selected according to different types of fire extinguishing agent.
1, A class of fire: should use water, foam, ammonium salt Dry powder fire Agent.
2, B class fires: should use dry powder, foam fire extinguishing agent. Class B polar solvent can not use chemical foam fire extinguishing agent should be used in anti-insoluble foam fire extinguishing agent.
3, C classes of fire: should use dry powder, carbon dioxide fire extinguishing agent.
4, D class fires: fire-fighting agents selected 7150 sand and soil.
(B) the proper use of fire fighting equipment
1, dry powder fire extinguisher for a wide range of fire extinguishers and a more economical and practical. Can be used to fight the charged object (less than 5000V) fire, liquid fire, gas fires, solid fires. Use when:
is best to spray fire extinguisher upside down several times before, so that loose powder barrel, but the jet could not be reversed, should stand upwind side of the use;
under the protection of personal safety as close to the fire;
pressing pressure to raise or pull ring must be removed before the safety device;
Use the fire extinguisher with spray hose, the hand must grip hose nozzle and then pressing the front or pull up to put pressure ring;
fire off the liquid (gasoline, alcohol, etc.) can not directly spray liquid, to be from near to far, about 10 cm in the surface of fast swing, covering combustion flame cutting surface;
fire extinguishers could not be stored near heat or sunlight, to prevent a jet-powered carbon dioxide in the powder heat from the jet, and pay attention to moisture, preventing dry powder agglomeration.
2, carbon dioxide fire extinguisher suitable for fighting precision instruments, charged objects and liquids, gas type fire; 1211 Fight fire extinguisher suitable for precision instruments, electrical equipment, computer rooms and other fires. Other tips:
open fire in the wind when the fire ineffective;
injection preceded the insurance unit and then unplug the pressure of the press; Extinguishing the fire
not too far from (2 meters is better);
spray nozzle when the hands do not touch the metal parts to prevent frostbite;
In the small confined space jet immediately after the withdrawal of personnel in order to prevent suffocation;
fire extinguishers placed near the heat source or when the sun is strictly prohibited.
3, fire hydrant is the main fire fighting water, indoor and outdoor sub-two. Indoor fire hydrant generally high in the floors or walls within the room, there are glass doors or iron block shot, which is equipped with water cannons, hoses. Other tips:
hose should be used to prevent torsion and bending, otherwise they will stop the flow of water through;
