1, super-class and first-class theaters, 1500 or more other theaters, 2,000 or more auditoriums, 3,000 or more gymnasiums, indoor staff lounges and equipment rooms in stadiums with more than 5,000 people, etc.
2. Exhibitions, shops, restaurants and guesthouses with a construction area of 1500 square meters or a total construction area of more than 3,000 square meters, as well as ward buildings, outpatient buildings and operating departments with the same construction scale in hospitals;
3. Central air-conditioning system of air duct (pipeline) and office building with a total construction area of over 3,000 square meters. ;
4. Libraries with more than 500,000 books;
5, large and medium-sized kindergartens, elderly care facilities, with a total construction area of more than 500 square meters of old buildings;
6. Underground or semi-underground shops with a total construction area of over 500 square meters;
7, set in the underground or semi-underground or above four floors (except swimming places), set in the first floor, second floor, third floor and any floor with a construction area of more than 300 square meters (except swimming places).
Extended data
Simple spray installation requirements
1, threaded joints must ensure the quality of thread processing. In principle, all thread heads must be processed by electric threading and operated by special personnel. Each type of pipe needs to be fitted, and large-scale processing can only be carried out after the fitting is qualified. No filler is needed, and the water pressure test is watertight.
2. For the nozzle with groove connection, ensure that the depth and width of the rolled groove meet the standard requirements, and the cross section of the nozzle is perpendicular to the pipeline axis without flanging and burr.
3. After the galvanized layer of galvanized pipeline is damaged, antirust paint should be painted in time, and the filler at the interface should be cleaned in time.
4, pipeline to prevent clogging, application of compressed air or cotton yarn cleaning before installation, installation, should prevent sundry into the tube; After installation and daily work, all nozzles should be blocked.
5, all kinds of stent layout is reasonable, beautiful and tidy, the position is correct, the installation is firm, gas cutting is strictly prohibited.
Ministry of Housing and Urban-Rural Development of the People's Republic of China-Code for Fire Protection Design of Buildings