What are the requirements for setting fire shutter? See below for details.

As the name implies, fire shutter is a kind of shutter door that can prevent fire. In a certain period of time, together with the shutter whose frame can meet the requirements of fire stability and integrity, it consists of shutter, reel, motor, guide rail, bracket, protective cover and control mechanism. It can be seen that there are quite a lot of supporting institutions for fire shutter doors. We often see it in garages, shops downstairs, shopping malls, shopping centers and other places. We don't know much about fire shutter doors, because there is still less contact. So what are the requirements for the setting of fire shutter doors? I believe we will be interested to know.

Installation requirements of fire shutter. Installation regulations

At present, the relevant codes for setting fire shutter doors in China are mainly "Code for Fire Protection Design of Buildings" and "Code for Fire Protection Design of High-rise Civil Buildings". There are many relevant provisions for setting fire shutter doors in these two specifications, which mainly include the following aspects after summary and analysis:

1, "Code for Fire Protection Design of High-rise Civil Buildings" specifies and regulates fire shutter doors.

Article 4.2.4: When the fire resistance limit of two adjacent high-rise buildings is not less than 2 hours, and there are Class A fire doors, windows or fire shutter doors at the opening of the wall, the fire separation distance can be appropriately reduced, but the minimum distance should not be less than 4 meters.

Article 5. 1.4: When there are openings communicating with the upper and lower floors in a high-rise building, such as corridors, open stairs, escalators, conveyor belts, etc., the upper and lower floors shall be regarded as a fire zone, and the maximum allowable area shall not exceed the provisions of Article 5. 1. 1 of this specification. When the upper and lower openings are equipped with fire shutter doors or water curtain spraying systems and other separation facilities with fire resistance time longer than 3 hours, the fire partition area can be calculated without superposition.

Article 5.4.4: In places where it is difficult to set up a firewall, fire shutter doors can be used as the separation of fire zones. If the fire shutter door including the temperature rise of the back fire surface is taken as the judgment condition of fire resistance limit, its fire resistance limit should not be less than 3 hours. If the fire shutter door excluding the temperature rise of the back fire surface is used as the judgment condition of the fire resistance limit, both sides of the fire shutter door should be protected by closed automatic sprinkler system, and the continuous spraying time of the sprinkler system should not be less than 3 hours.

Article 5.4.5.2: The vestibule and passageway communicating with the atrium shall be separated by Class B fire doors or fire shutter doors with fire resistance time longer than 3 hours.

Article 6.3.3.4: The door of the front room of the building fire elevator can be provided with Class B fire doors or fire shutter doors with stagnation function.

2. Provisions on the setting of fire shutter doors in Code for Fire Protection Design of Buildings

Article 5.5. 1: The fire zone of the building shall be separated by a firewall. In case of difficulty, fire shutter doors and water curtain spraying system can be used for separation.

It can be seen that the requirements for setting fire shutter doors are clearly stipulated. Therefore, when installing, we must choose the relevant regulations for installation, and we must not tamper with them privately. For some shutter doors that are not installed in accordance with clear regulations, they may be required to be reinstalled. Because we must pay attention during the installation process. When there is a fire in an emergency, the fire shutter door can isolate the fire source, and its role cannot be underestimated. So where necessary, we must install fire shutter doors.

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