Precautions for fire prevention of the hottest sup

Precautions for fire prevention in large supermarkets

large supermarkets are public places where people gather. Perfect fire prevention measures are of great significance to ensure the normal operation of supermarkets and the safety of customers' lives and property

the fire prevention focus of large supermarkets is rapidly implemented all over the world. We should grasp the source and do a good job in basic work, starting from the following aspects:

(I) ensure the area of personnel passage and safe evacuation routes. As a public place, the supermarket business hall should take full account of the area required by the flow of customers. At present, there is no clear specification in China (8) the experimental data can be used to test the fatigue life of various parts and components by using the data file management method. However, according to the actual situation and referring to foreign experience, the proportion of the public area occupied by shelves and people is: Comprehensive large supermarkets or multi-storey supermarkets are generally not less than 1:1.5; The minimum for smaller supermarkets is not less than 1:1. The public area occupied by the flow of people shall not be less than 0.4 square meters per capita according to the average flow of customers during peak hours. When the counters are arranged in groups, the distance between groups shall not be less than 3 meters

(II) supermarkets should divide fire zones according to the provisions of the code for fire protection design of buildings and the code for fire protection design of high rise civil buildings. The multi-storey supermarket is divided into a zone of 2500 square meters on the ground and a fire zone of 500 square meters underground; If the supermarket is equipped with automatic sprinkler system, the fire compartment area can be doubled; If the high-rise market is equipped with automatic fire alarm system and automatic sprinkler system, and is decorated with non combustible or non combustible materials, the fire compartment area of the above ground supermarket can be expanded to 4000 square meters, and the fire compartment area of the underground supermarket can be expanded to 2000 square meters

(III) small transit warehouses, service processing and household appliances, clocks, glasses repair departments of supermarkets should be set up separately from the business hall, and the use of open flames should be strictly controlled

(IV) oil immersed power transformers should not be set in underground supermarkets. If they must be set, they should avoid crowded parts and entrances, and should be separated from other parts by partitions with a fire resistance of not less than 3H and floors with a fire resistance of not less than 2H. The doors on the walls should adopt class a fire doors, and accident oil storage facilities that can store all the oil of the transformer should be set under the transformer

(V) on the horizontal branch pipe of the air conditioning machine room entering the fire compartment, a fire valve that can automatically close in case of fire shall be set according to the regulations. Thermal insulation materials used on air-conditioning ducts 3. The total average friction force should be calculated accurately. Non combustible or non combustible materials should be selected as sound-absorbing materials