Source: Fire Brigade
Fire accidents should be prevented, and people can get well-being without disaster refuge;
Always be alert to prevent dark fire and eliminate hidden dangers;
Daily cleaning of flammable sundries and standardized installation of power facilities;
Power supply wires are not damaged, and leakage protection is advocated;
Standard use fuse, circuit safety is guaranteed;
Built-in lines are extremely heavy and take a long time to update;
Capacitive appliances do not exceed the standard, and science of electricity is guaranteed;
It is forbidden to store flammable materials and gasoline fuel packaging boxes indoors;
Electric furnace oil furnace gas tank, normal use without absurdity.
Extended data
extinguishant
The widely used fire extinguishing agents mainly include: water, foam, carbon dioxide, dry powder, inert gas fire extinguishing agent, etc.
water
Water is the most commonly used fire extinguishing agent, which is convenient to use, rich in sources and low in price. Therefore, it is widely used in fire fighting.
Water cannot put out fires of the following substances and equipment:
Alkali metal medium fire, carbonization, hydrogenation, golden yellow medium fire; Sulfuric acid, nitric acid and hydrochloric acid should not be put out with concentrated water; Lighter than water, insoluble in flammable liquids (except oil and heavy oil); Molten iron and steel; When the high-voltage electrical equipment is on fire, there is no good grounding equipment or the current is not cut off;
foam fire-fighting
Foam is a kind of bubble group with small accumulation and surrounded by liquid, which only saves fires caused by flammable liquids and flammable gases. Foams used in China include chemical foam and air mechanical foam (air foam for short).
The main principle of foam fire extinguishing is that foam is lighter than flammable and combustible liquid, covering the burning liquid surface, preventing liquid vapor from entering the burning area, preventing air from contacting the burning surface, preventing heat from conducting to the liquid surface and absorbing a certain amount of heat, thus stopping burning.
Chemical foam extinguishing agent
Chemical foam is light in weight, has a certain foaming multiple, has strong fire resistance and good durability, can cover the surface of burning liquid, and has good covering and cooling effects.
Ordinary foam extinguishing agent
Alkanes with covering, cooling and fire extinguishing functions can effectively extinguish flammable and combustible liquids, but are not suitable for extinguishing water-soluble liquids such as alcohols, ketones and ethers and gaseous alkanes.
Carbon dioxide extinguishing agent
It is suitable for extinguishing fires of electrical equipment, precision instruments, books and archives, as well as small fires of oil, gas and some substances that cannot be extinguished by water. However, it is not easy to extinguish the fire area of hydrides such as potassium, sodium, magnesium and aluminum, and it is not easy to extinguish the fire that can burn raw materials and the internal flame retardant of some substances (such as cotton) in some inert media.
Dry powder extinguishing agent
Suitable for fighting flammable liquids, flammable gases and electrical fires, as well as some fires that are not suitable for water fighting. However, care should be taken to cool containers or substances to avoid re-ignition.
(2) Fire extinguisher
Fire extinguisher is a portable fire extinguishing equipment. There are many kinds of fire extinguishers, mainly including clear water fire extinguishers, foam extinguisher, carbon dioxide fire extinguishers, dry powder fire extinguishers, 12 1 1 fire extinguishers, etc. ?
You should learn to use the fire extinguishers equipped by your unit and department. Fire extinguishers must be checked and updated regularly in order to put out the fire from the beginning.
References:
Baidu encyclopedia-fire control