Using ASD for Coincidence & Redundancy Detection
Commonly known as “double knock”. Coincidence detection relies on alarm signals across two zones or between two detectors to activate before any evacuation/alarm occurs. In this instance, depending on the ASD specification, a detector or each pipe inlet can be used as a zone/address. Look at the table below to see which detectors can be used as a single zone or multiple zones/address.
Addressable Aspirating Smoke Detection for Data Centres
usually consist of a large group of computer servers networked together, their main purpose being to provide companies and organizations internationally with remote/cloud storage, processing and distribution of large amounts of data.
Automatic Maintenance for Aspirating Smoke Detection
Aspirating smoke detection is generally considered to be a low maintenance system in applications where there is minimal dust and dirt pollution such as an office, but what about applications such as, steel work factories, livestock facilities and mines?
Understanding EN 54-20 Aspirating Smoke Detection Sensitivity Classes
EN 54-20 specifies 3 classes of sensitivity to help with the vast amount of applications aspirating smoke detection can be used for. This is to ensure that the most appropriate sensitivity aspirating smoke detector will be selected for the proposed application/area.
Useful Aspirating Smoke Detection Accessories
The disadvantage of installing a large-bore aspirating smoke detection pipe run is the lack of flexibility in the direction. Changing the direction of a pipe run is generally done so by using either a 90 degree sweeping bend or a 45 degree bend. Flexible connectors on the other hand have the benefit of being positioned in any direction with no restriction to the air flow. They can also be useful when getting over obstacles such as a steel beam. Eurofyre are the suppliers for the following:
