Division principle of fire protection zone

Principle of fire zone division From the fire protection point of view, the smaller the fire zone division, the more conducive to ensuring the fire safety of buildings. But if the division is too small, it will inevitably affect the use function of the building, obviously not. The determination of fire zone area should consider the use nature, importance, fire risk, building height, fire extinguishing ability and fire spreading speed of buildings.

Fire partition refers to the area separated by firewall, floor, fire door or fire shutter, which can limit the fire to a certain local area (within a certain period of time) to prevent the fire from spreading. Of course, the partition of the fire zone also plays a role in isolating smoke.

Taking measures to divide fire zones in buildings can effectively control the fire within a certain range, reduce fire losses, and provide favorable conditions for safe evacuation and fire fighting.

Fire zone classification

According to its function, fire zone can be divided into horizontal fire zone and vertical fire zone. Horizontal fire separation includes: firewall, fire door, fire window, fire shutter, fire water curtain, etc. The wall of the building objectively also plays the role of fire separation.

Vertical fire separation includes: floor, refuge layer, fire cornice, functional conversion layer, etc. Vertical fire zone is used to prevent vertical fire spread between floors of multi-storey or high-rise buildings. Horizontal fire zone to prevent the fire from spreading horizontally.