Fire Door Manufacturers Explain the Role of Fire Doors in Fire Safety
2021-11-12
We often see signs on the floor of large buildings or public spaces stating “No standing or shelving allowed over firefighting equipment.” The primary purpose of installing fire doors is that, should a fire break out in a specific area, lowering the rolling door in that section alone can prevent the fire from spreading.
Typically, fire doors in large buildings are integrated with automated central control systems. Upon detecting a fire, these systems automatically execute a series of actions, including lowering the fire doors to compartmentalize the flames.
Below is the operational sequence of the fire door's automatic control system: Upon detecting smoke, ceiling-mounted smoke detectors first receive the signal and simultaneously alert the central control system. After verification, the fire control center activates the power supply to the fire doors in the affected zone, causing the fire-rated rolling doors to descend toward the floor at a predetermined speed.
When the curtain descends to approximately 1.5 meters above the floor, it pauses to facilitate employee evacuation and escape. After all relevant personnel have exited, the fire door continues lowering until fully closed. The descent speed and pause duration can be automatically adjusted based on the number of occupants.
Fire doors are not exclusively installed in such locations; similar fire protection measures are implemented in stairwells, hallways, and other areas. Since fires are rare occurrences, some fire protection equipment may become unused over time. Therefore, dedicated personnel must conduct regular inspections as required.
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Ganzhou Yinyuan Fire Equipment Co., Ltd
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Address: Shuixi Industrial Park, Zhanggong High-tech Zone, Ganzhou City, Jiangxi Province, China
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