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Civilian fire extinguisher deployment site hazard level,
It should be based on the nature of its use,
Fire hazard,
The number of combustibles, the speed at which fire spreads, and the degree of difficulty in extinguishing fires are divided into the following three levels:
1
, Serious hazards: places with complex functions, high power consumption, expensive equipment, high fire risk, high flammable materials, rapid spread after a fire, or easy major fire damage;
2
Medium and dangerous levels: places where there are more fires with electricity, greater fire risk, more flammable materials, and rapid spread after a fire;
3
, Light hazard level: Less electricity is used for fire, less fire risk, less flammable materials, and slower spread after fire.
Second, the type of fire should be divided into the following categories based on the substance and its combustion characteristics:
1
,
A
Fires: Refers to the burning of carbon-containing solid combustibles such as wood, cotton, wool, linen, paper, etc.;
2
,
B
Fire: Nail, B, C fluids such as gasoline, kerosene, diesel, methanol, ether, acetone, etc.
3
,
C
Fire: Refers to a combustible gas such as gas, natural gas, methane, propane, acetylene, hydrogen, etc.
4
,
D
Fires: Refers to combustible metals such as potassium, sodium, magnesium, titanium, zirconium, lithium, aluminum-magnesium alloys, etc.;
5
, Live fire: A fire that burns a charged object.
The fire extinguishers shall be composed of numbers and letters, and the numbers shall indicate the size of fire extinguishing levels, letters (
A
or
B
) It should indicate the unit of fire-extinguishing level and the applicable fire-fighting type.
Fire extinguisher selection
one,