Conventional fire alarm systems are one of the crucial fire safety measures taken for the protection of life and property. They are a legal requirement under the Regulatory Reform (Fire Safety) Order 2005 for most non-domestic premises where people work, or visit. That includes offices, shops, hotels, public venues, and almost all new buildings under the 2010 Building Regulations.
A guide to fire alarm system types
By law, employers and building owners or occupiers must carry out a fire safety risk assessment and keep it updated. Based on the findings of the assessment, they must make sure that appropriate fire safety measures are in place to minimise the risk of injury or loss of life in a fire. Guidance and help on the design, installation and maintenance of your fire alarm system can be obtained from the experts at RV Fire Systems, meeting code of practice BS:5839.
The wide choice of fire alarm systems available is broadly divided into “conventional” fire alarm systems and analogue addressable “intelligent” systems. Each type is best suited to different kinds of premises. They may also be divided into categories depending on whether they aim to protect life or property, and also whether they are manual or automatic.
Conventional fire alarm systems
Conventional, four-wire alarm systems have been used in smaller properties like shops and restaurants extensively for many years. They are less expensive to purchase than the other types of fire alarm systems. Two wire conventional fire alarm systems work by dividing the building into detection zones, with detectors and call-points in each zone hardwired to the control panel in dedicated circuits. There may be multiple detectors in a single zone. A separate fire-protected cable is needed for each alarm sounder or bell because they are connected to different loops.
When a detector is activated, the control panel identifies which circuit contains the device and indicates the zone where the fire alarm originated. The area will then have to be searched to pinpoint the specific device.
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