2, the second level of fire-resistant buildings: the main building components in addition to the ceiling is incombustible, the other is non-combustible.
3, three fire-resistant building: roof load-bearing components for combustible.
4, four fire-resistant buildings: firewall for non-combustible, - the rest of the refractory and combustible.
I, building components of the fire performance
1, building components of the combustion performance refers to the reaction of the building components of the material fire, divided into non-combustible, refractory and combustible body three categories of non-combustible building components such as walls, columns, foundations, etc.; refractory body such as hangers, ceilings, and the internal piping; combustible body such as doors, windows, ceilings, decorative materials, etc..
2, building components of the fire-resistant limit: any building components according to the time - temperature standard curve for fire resistance test, from the role of the fire from the loss of the ability to support or integrity of the destruction or loss of the role of the fire so far this time is called the fire-resistant limit, to hours "h " is expressed. The time-temperature standard curve is an idealized test curve for the development of a fire in the field expressed under standard laboratory conditions according to a specific heating method. The curve to be adopted by the International Organization for Standardization, the purpose is to have a unified test standard for the limit fire resistance time of building components.
Two, plant fire acceptance standards are
1, fire acceptance refers to the fire department of enterprises and institutions for the completion of the operation of the fire detection of qualified investigations, the construction unit for the fire acceptance of the need for the Fire Services Bureau of the safety inspection check, and the need to issue a certificate of conformity of the electrical fire inspection, electrical fire detection has been included in the national Ministry of Public Security Fire Acceptance of the mandatory inspection of the project. Project. After the completion of the plant is certainly the need for fire acceptance, acceptance is also a prescribed standard. First of all, for the acceptance of the number of supervisors is a prescribed requirement, not less than two people, and then the unit's staff need to introduce the company's layout, and then the inspectors need to test the site and register the relevant records. The next step is to carry out a summary acceptance, according to the provisions of the fire acceptance of construction projects to determine whether the fire acceptance of the plant is in line with the standard, in line with the standard, the fire agency will issue the relevant documents.
Three, the main classification and subsection.
1, with the items (substances) of the fire hazard classification corresponds to the production of fire hazard classification, can also be divided into A, B, C, D, E, which, A, B, C, D and based on the risk characteristics are divided into different items. The same fire hazard classification of production sites, fire risk level is similar, the same kind of production sites with the same item, the risk characteristics are similar.
Four, affecting the production of fire hazard classification of the key elements
1, the items (substances) of the fire hazard classification, is to determine the classification of plant fire hazard classification of the key elements of the items (substances) in the production of physical form (solid, liquid, gaseous), flash point, flashpoint, spontaneous combustion point, as well as the redox properties, production conditions, etc., is directly related to the fire hazard Size. In determining the classification of fire hazard of production substances, the following elements should be concerned:
2. The fire hazard of substances in various parts of the production process should be concerned, including raw materials, intermediate products, by-products, finished products, etc.
3. Attention should be paid to whether the production and operation conditions will change the nature of the substance, for example, whether the production and operation environment exceeds the flash point and spontaneous combustion point of the substance.
4. Attention should be paid to whether the conditions of production and operation will change the state of the substance, for example, whether there is combustible dust (powder), fibers, flying debris, droplets, vapors and so on during the production and operation. It should be noted that even for the same product, the intermediate products, by-products and operating conditions of different production processes may be different, and the corresponding fire hazard classification may be different, and should be disposed of as appropriate.
Legal basis
"Chinese People's **** and State Fire Services Law"
Article 5 of any unit and individuals have to maintain fire safety, protection of fire facilities, fire prevention, the obligation to report fire. Any unit and adults have the obligation to participate in organized fire-fighting work.
Article 22 of the production, storage, loading and unloading of flammable and explosive hazardous materials, factories, warehouses and special stations, wharves shall be set up in accordance with fire safety technical standards. Flammable and explosive gases and liquids, filling stations, supply stations, regulating stations, shall be set up in line with fire safety requirements, and meet the requirements of fire and explosion prevention.
Already set up the production, storage, loading and unloading of flammable and explosive hazardous materials, factories, warehouses and special stations, terminals, flammable and explosive gases and liquids, filling stations, supply stations, regulating stations, no longer in line with the provisions of the preceding paragraph, the local people's government shall organize and coordinate with the relevant departments, units to solve the problem, and to eliminate the potential safety hazards.
Article 23 of the production, storage, transportation, sales, use, destruction of flammable and explosive dangerous goods, must implement fire safety technical standards and management regulations.
Entering the production and storage of flammable and explosive dangerous goods, must implement fire safety regulations. It is prohibited to illegally carry flammable and explosive dangerous goods into the public **** places or take public **** transportation.
The management of the storage of combustible materials warehouse, must implement fire safety technical standards and management regulations.