Configuration of Fire Fighting Facilities in Civil Buildings [1] Outdoor fire hydrant system 1. Setting range of outdoor fire hydrant 1) In the planning and architectural design of cities, residential areas, factories, warehouses, etc., fire water supply systems must be designed simultaneously; cities and towns (including residential areas, commercial areas, development zones, industrial areas, etc.) should set up municipal fire hydrant systems along the streets where fire engines can be used. 2) Outdoor fire hydrants should be installed around civil buildings, factory buildings (warehouses), storage tanks (areas) and storage yards. 3) The outdoor fire hydrant system should be installed on the roof used for fire rescue and parking of fire trucks. 4) Fire-resistant grade not less than grade 2, and building volume less than or equal to 3000m 2. The number of outdoor hydrants should be determined according to the design flow rate and protection radius of outdoor hydrants.The protection radius should not be greater than 150.0m.The outflow rate of each outdoor hydrant should be 10L/s~15L/s. calculated according to When 5000m [2] Indoor fire hydrant system 1. Setting range of indoor fire hydrant 2. Configuration requirements of indoor fire hydrant: volume greater than 5000m (1) Building height over 15 m or building volume over 10 000 m (2) DN65 indoor hydrant should be used in indoor fire hydrant. Fire-proof tape with lining and nominal diameter of 65mm and length of not more than 25.0m should be equipped. (3) The arrangement of indoor hydrants should satisfy the requirements of two filling water columns of two fire-fighting water guns on the same plane and at the same time meet any parts. The spacing of indoor hydrants should not be greater than 30m, the dynamic pressure of hydrant mouth should not be less than 0.25MPa, and the filling water column of fire-fighting water guns should be calculated according to 10m. (4) Indoor fire hydrants should be set in staircases, rest platforms, antechambers, walkways, etc., which are obviously easy to use, as well as the location for fire fighting. The height of the hydrant orifice should be 1.1m from the ground. The outlet direction of the hydrant should be convenient for the laying of the fire hose, and 90 degree angle or downward with the wall with the hydrant. _The number buildings of should indoor be hydrants in determined according to the design flow rate and protection radius of indoor hydrants. The spacing should not be greater than 30m. [3] Automatic Sprinkler Fire Extinguishing System 1) The automatic fire extinguishing system should be set up in the ground entertainment venues (except swimming places) which are located on the first, second and third floors and whose floor area is more than 300_, and the automatic sprinkler fire extinguishing system should be adopted.The fire danger grade of the system setting place is medium danger grade I, and its sprinkler intensity should not be less than 6L/min, and its action area should not be less than 160. 2) The fire risk grade of the setting place of automatic sprinkler fire extinguishing system is divided into four categories: light danger grade/medium danger grade (most civil buildings and industrial plants are classified as medium danger grade).According to the characteristics of many kinds and wide range of such places, they are subdivided into Grade I and Grade II) serious dangerous levels. Warehouse fire risk level: According to the fire risk of stored goods and packaging materials in warehouse, the fire risk level of warehouse is divided into I, II and III levels.Warehouse fire hazard level 1 generally refers to the storage of food, tobacco and alcohol, as well as non-flammable or non-flammable goods packed in wooden boxes and cartons; warehouse fire hazard level II generally refers to the storage of wood, paper, leather places mixed and with other items various and plastic bottles, boxes and other items; warehouse fire hazard level III generally refers to the storage of group A plastics and rubber and their products.A place for articles such as articles. 3) Only a single row closed sprinkler system is installed in the aisle, and its working area should be determined

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