Fire curtains are passive fire protection systems designed to prevent the spread of fire and smoke in buildings, especially commercial and public areas. Fire curtains are heat-resistant fabrics or flexible composite materials that are activated automatically or manually by the fire alarm system in the event of a fire.
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Working of Fire Curtains
Here is how fire curtains work in general.- Introduction:The fire curtain is activated automatically by a heat or smoke detector or manually by a fire alarm system. When fire is detected, a signal is sent to the fire curtain control system.
- Deployment: Upon receiving the signal, the fire curtain is quickly deployed across the opening. This can depend on the design of the screen and the vertical or horizontal location.
- Containment: Once in use, a fire curtain forms a kind of barrier that prevents flames, heat and smoke from spreading from one side of the building to another. This barrier helps reduce fire damage and allows residents to evacuate safely.
- Protection: Fire curtains are designed to withstand high temperatures and provide a specific protection time, typically 30 minutes to 2 hours, depending on their fire rating
- Retraction: After the fire has been extinguished and the area deemed safe, the fire curtain can be manually or automatically retracted back into the building and operational.