Is it necessary to install a fire sprinkler system when the business area exceeds 1500 square meters?

Where the business area exceeds1500m2, a fire sprinkler system shall be set up.

According to the Code for Fire Protection Design of Buildings (GB 50016-2014 (version 2018), 8.3 Automatic fire extinguishing system:

8.3.4 Except as otherwise specified in this specification and not suitable for waterproof or fire-fighting places, the following single-storey and multi-storey civil buildings or places shall be equipped with automatic fire extinguishing systems, and automatic sprinkler systems shall be adopted:

1, super-class and first-class theaters, 1500 or more theaters of other grades, 2,000 or more auditoriums, 3,000 or more gymnasiums, indoor staff lounges and equipment rooms of stadiums with more than 5,000 people, etc.

2. The construction area of any floor is greater than 1500m? Or is the total construction area more than 3000m? Exhibitions, shops, restaurants and hotels, as well as ward buildings, outpatient buildings and operating departments of the same building scale in hospitals;

3. Is the return air duct (pipe) with a total construction area of more than 3,000 m provided with a central air conditioning system? Office building, etc. ;

4. Libraries with more than 500,000 books;

5, large and medium-sized kindergartens, elderly care facilities;

6. The total construction area exceeds 500m? Underground or semi-underground shops;

7, set in the underground or semi-underground or above four floors (except swimming places), set in the first, second and third floors, and the construction area of any floor is more than 300m? Entertainment places (except swimming places) for dancing and entertainment on the ground.

Extended data

principle of operation

1, closed automatic sprinkler system

Usually, the roof fire water tank is filled with water. In case of fire, when the temperature of the sprinkler reaches a certain temperature (generally 68℃), the sprinkler is chrome-plated and melted, and the water in the pipeline is automatically ejected under the water pressure of the fire water tank. At this point, the wet alarm valve automatically opens, and the pressure switch in the valve automatically opens. This pressure switch has a signal line, which is interlocked with the fire pump and the pump starts automatically. Then the spray pump supplies the water in the pool to the pipe network through the pipeline, and the whole fire fighting system starts to work.

2. Open automatic sprinkler system

The system is equipped with a smoke detector to detect smoke. When the smoke reaches a certain concentration, the smoke detector will give an alarm, which will be fed back to audible and visual alarm for action after being confirmed by the upper computer, and give a sound or flashing light to warn people, so as to start the smoke control and exhaust fan and start smoking. At the same time, the solenoid valve of deluge valve will be opened, and water will be directly sprayed to the linked spray pump and the opened nozzle.

Manual control series is generally suitable for ships. Combined with the fire fighting system of the ship, pipelines are laid around the ship's cab and living area, and sprinklers are installed. Once the ship itself is on fire or other ships are on fire, when the fire fighting system works, the nozzle will spray at the same time to protect the ship's cab and living area.

Baidu Encyclopedia-Code for Fire Protection of Architectural Design

Shihezi University -GB500 16-20 14 Code for Fire Protection Design of Buildings