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Aspirating Smoke Detection Systems

Aspirating Smoke Detection Systems

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More on Aspirating Smoke Detection Systems

What is an aspirating smoke detection system?

An ASD system continuously draws air through a network of pipes and actively samples it for smoke particles. It uses a highly sensitive sensor, often laser-based, to detect smoke at the earliest stage of a fir, far earlier than conventional detectors.

Where are ASD systems typically used?

ASD is ideal for high-risk or mission-critical environments, such as:

Server rooms and data centres
Cold storage and refrigerated areas
Warehouses with high ceilings
Cleanrooms and healthcare settings
Heritage buildings and museums
Correctional facilities and transportation hubs

Are aspirating systems suitable for dusty or dirty environments?

Yes. ASD systems are often used in dusty or industrial environments because the detection unit is remotely located, away from the source of contamination. Many models include air filtration systems to ensure accurate performance.

How does the pipework system work?

Plastic (often red) sampling pipes are installed throughout the protected area with strategically placed holes. The ASD system continuously draws air through these holes into the detection chamber for analysis.

Do ASD systems trigger false alarms more easily because they’re so sensitive?

No. While extremely sensitive, modern ASD systems use intelligent algorithms and programmable alarm thresholds, which help minimise false alarms while ensuring early detection.

Are ASD systems compliant with fire safety standards?

Yes. Leading ASD brands are approved to international standards such as EN 54-20, UL 268, and FM Global, with sensitivity classes A, B, or C depending on the application.

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