Scope of application of fire door

In addition to the choice of fire door material difference, we also carefully according to the separation requirements of different parts of the building to set up different fire resistance limit of the fire door. Different fire doors can be selected in the following situations.

1, The ascending door of the partition between the fire elevator shaft, the machine room and the adjacent elevator shaft machine room shall be class A fire door

2, smoke prevention stairwell and door leading to the front room, high-rise civil buildings closed shuttle ladder door, fire elevator front room door should be class B fire door, and should be opened to the direction of evacuation.

3, high-rise civil buildings in the vertical shaft inspection door should be class C fire door.

4, in the fire wall should not open doors and Windows, such as must be opened, should set fire limit of not less than 1.5h class A fire doors and Windows.

5, for the fixed fire extinguishing equipment room, ventilation, air conditioning room, etc. attached in high-rise civil buildings, should be separated from other parts by the wall not lower than the stipulated fire resistance limit, the door of the partition wall should be used for fire resistance limit of 1.5h class A fire door (for non-high-rise buildings for 1.0H class B fire door).

6, the basement, half of the "room stairs asked when the fire wall hole, should use the fire limit of 1.5h class A fire door.

7, oil-fired, gas-fired boilers, oil-immersed power transformers, high-voltage capacitors and oil-filled switches are located in high-rise civil buildings or skirts. Its partition wall must open the door should be set class A fire door.

8. The oil storage room of the diesel generator room located in the high-rise civil building or podium should be separated by firewalls and generators; When it is necessary to open the door from the fire wall, a class A fire door that can close by itself should be installed.