Fire alarm fire protection distance

The distance between buildings that prevent the radiant heat of a burning building from igniting adjacent buildings within a certain period and facilitates firefighting remediation is called the fire protection distance. To prevent the spread of heat radiation and other effects to adjacent buildings after a fire occurs in a building, and to create conditions for firefighting remediation, a certain fire protection distance should be maintained between various buildings (structures), yards, storage tanks, power equipment, etc.

Fire alarm fire protection distance

1. The meaning of fire protection distance

The distance between buildings that prevent the radiant heat of a burning building from igniting adjacent buildings within a certain period and facilitates firefighting remediation is called the fire protection distance. To prevent the spread of heat radiation and other effects to adjacent buildings after a fire occurs in a building, and to create conditions for firefighting remediation, a certain fire protection distance should be maintained between various buildings (structures), yards, storage tanks, power equipment, etc.

2. Factors affecting fire separation distance

There are many factors affecting fire separation distance, and the conditions vary. From the perspective of fire spread, they mainly include heat radiation, heat convection, wind direction and wind speed, combustion performance of exterior wall materials and size of opening area, types and quantity of combustibles stored indoors, height of adjacent buildings, implementation of indoor fire protection, fire rescue force, etc.

3. Determination of overturning distance

Based on comprehensive consideration of meeting the needs of fire fighting, preventing the spread of fire to adjacent buildings, and saving land, the current national standards "Code for Fire Protection Design of Buildings" (GB50016), "Code for Fire Protection Design of High-rise Civil Buildings" (GB50045), "Code for Fire Protection Design of Garages, Repair Garages, and Parking Lots" (GB50067), etc., have made specific provisions on the fire separation distances between various buildings (structures), yards, storage tanks, power facilities, etc.