【 Weak current college 】 building fire extinguishers configuration design basic practices

Building a fire extinguisher is put the beginning of a major fire equipment, fire, light and flexible, to prevent serious fire accidents played a decisive role. Especially since the construction of fire extinguishers configuration design code for purposes of design, construction, management and use of fire extinguishers configuration is even more attention.
First, determine the fire extinguishers configuration places of risk level
Risk level of the classification is based on the nature of the place of use, fire hazard, fuel quantity, the fire spread speed as well as factors such as ease of suppression is divided into three levels. Namely: grave danger, risk level, in the light of risk level. In the design of the first according to the specifications determined configuration places risk level.
Second, determine the location of fire extinguishers configuration types
Fire types is based on the material and its combustion, the construction of fire extinguishers configuration design code to fire class is divided into 5 categories:
A class of fire: means carbon solid fuel, such as wood, cotton, wool, hemp, paper, and so burning fire.
Class b fire: nails, b, c liquid, such as petrol, kerosene, diesel oil, a drunk, ether, acetone, burning fire.
Class c fire: combustible gas, such as gas, natural gas, methane, propane, acetylene, hydrogen, etc. Burning fire.
D a charged fire: combustible metal, such as potassium, sodium, magnesium, titanium, zirconium, lithium, aluminum-magnesium alloy, burning fire.
3. Select the type of fire extinguisher
Select fire extinguishers configuration places according to the fire risk of combustible substances, fire types, the use of a building, the fire extinguishers on the protection of pollution levels and on the presence of staff health effects, the surrounding environment temperature, the use of fire extinguishers and fire-fighting personnel skills and many other factors in the selection. Usually in the same place, easy to use the same type and how the same fire extinguishers.
A fire, fighting A class should choose water (water, acid and alkali) foam, ammonium phosphate powder, 1211, 1301, types of fire extinguishers.
B class B, fighting fire choose dry powder, foam, 1211, 1301 or carbon dioxide, and other types of fire extinguishers.
C, C class fire suppression should choose 1211, 1301 or carbon dioxide, and other types of fire extinguishers.
D should, fighting a charged fire choose 1211, 1301, carbon dioxide or dry powder fire extinguishers and other models.
To note in the same place selection of two or more types of fire extinguishers, consideration should be given to the interaction between the extinguishing agent to ensure that two or more types of extinguishing agent between MS, both at the same time use or have used, to prevent adverse interactions between the fire and the fire effect is affected.