What is the distance from point to point and point to wall of the fire sprinkler system?

The distance from point to point and point to wall of fire sprinklers is as follows:

1. The layout of upright and pendent type standard coverage area sprinkler heads, including sprinkler heads on the same water distribution branch pipe The spacing between adjacent water distribution branches should be determined based on the fire hazard level, sprinkler head type and working pressure of the installation site, and should not be greater than the requirements in the table below, and should not be less than 1.8m.

2. The maximum protection span and spacing of side wall type standard coverage area sprinkler heads should comply with the following table:

7.1.4 Upright and pendent type expanded coverage area sprinklers The sprinkler heads should be arranged in a square shape, and their arrangement spacing should not be greater than that specified in Table 7.1.4 and should not be less than 2.4m.

Fire hazard level classification:

1. Light danger level: hotels and office buildings with a building height of 24m and below. Buildings with closed systems only in walkways, etc.

2. Medium risk level: high-rise civil buildings: hotels, office buildings, complex buildings, postal buildings, financial telecommunications buildings, command and dispatch buildings, radio and television buildings (towers), etc.

2.1? Public buildings (including single and multi-story buildings): hospitals, sanatoriums, libraries (except bookstores), archives, exhibition halls (halls), theaters, concert halls and auditoriums (stages) Except) and other entertainment venues, buildings in railway stations, airports and docks, shopping malls with a total construction area of ??less than 5,000 square meters, underground shopping malls with a total construction area of ??less than 1,000 square meters, etc.

2.2 Cultural heritage buildings: ancient wooden structures, national cultural relics protection units, etc.

2.3 Industrial buildings: material preparation and production workshops for food, household appliances, glass products and other factories, cold storage, steel roof trusses and other building components.

2.4 Civil buildings: library, stage (except grape trellis), car parking lot, shopping mall with a total construction area of ??5,000 square meters and above, underground shopping mall with a total construction area of ??1,000 square meters and above, etc.

2.5 Industrial buildings: cotton, wool, linen, silk and chemical fiber textiles, fabrics and products, wood, wood and plywood, grain processing, tobacco and products, drinking alcohol (except beer), leather and products, paper and paper products Material preparation and production workshops of , pharmaceutical and other factories.

3. Severe hazard level: material preparation and workshops of printing plants, alcohol products, flammable liquid products and other factories.

3.1 The lower part of the "grape rack" of flammable liquid spray operation areas, solid flammable items, flammable aerosol products, solvents, paints, asphalt products and other factories' material preparation and production workshops, studios, and stages.

4. Warehouse hazard level: food, tobacco and alcohol, non-combustible and retardant items packaged in wooden boxes and cartons, shelf areas of warehouse-type shopping malls, etc.

4.1? Wood, paper, leather, grains and products, cotton, wool, linen, silk, chemical fibers and products, household appliances, cables, Group B plastics and rubber and their products, steel-plastic mixed material products, various plastic bottles Warehouses for mixed storage of non-combustible items packaged in boxes and various items.

4.2 Group A plastics and rubber and their products, asphalt products, etc.

Reference material: China Fire Protection Resource Network