Do you know fire separation and fire window

Fireproof window refers to the window that can meet the requirements of fire stability and fire integrity together with the frame within a certain time. Like fire windows, they are usually placed on firewalls or fire doors.

The classification of fire windows can be divided into solid sash fire windows and moving sash fire windows according to the main points of placement. According to the fire resistance limit, it can be divided into class A, class B and class C. windows with fire resistance limit not less than 1.2h are class a fire windows; The windows with fire resistance not less than 0.9h are class B fire windows, and the windows with fire resistance not less than 0.6h are class C fire windows.

The function of fireproof window: first, cut off and stop the spread of fire. Most of these windows are solid windows; The second is daylighting. This kind of window has a moving window sash, which can provide daylighting and ventilation under normal environment and play a role of fire prevention and separation in case of fire. Fireproof windows of moving sashes shall have manual and active sealing effects.

Material requirements for fire windows

(1) The window frame shall accept a steel frame or wood frame with positive strength enough to ensure the completeness and stability of the members.

(2) Galvanized steel plate or stainless steel plate can be used for steel frame and strip. The material selection standard shall comply with Article 5.1 of gb12955 general technical conditions for steel fire doors.

(3) The selected material scale of wood frame and batten shall comply with Article 5.1.1 of gb14101 general technical conditions for wooden fire doors [1].

(4) The supplementary materials inside the steel and wood frames shall accept incombustible materials.

(5) The fireproof glass can be the product that does not affect the fire resistance test of the fireproof window. The light transmittance of glass shall not be less than 75% of ordinary flat glass with the same number of layers.

(6) The sealing material between the frame and the fireproof glass shall accept the non combustible material, which can play the role of fire prevention and smoke separation in case of fire.

(7) The hardware fittings shall be finalized supporting products that have passed the test.

(8) Fireproof window opening and closing device: it must have the effect of temperature sensing to release the window sash. Now the market situation has integrated (window closer) and split (fuse device).

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