Conventional Fire Alarm Systems

Conventional fire systems

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Conventional fire system are the entry level for most fire system requirements, these are suitable for small offices, nursery's, small hotels, warehouses, shops & any small business.

A conventional system has detection zones, connected to these zones are a number of automatic fire detectors (AFD) such as heat or smoke detectors & break glass units.

When one of the above detectors is triggered an LED will light up on the detector & on the relevant zone light back at the main control panel to identify the area of the fire.

The control panel will then operate the sounders or sounder beacons which are usually on a separate circuit.

Conventional fire systems start from single zone systems all way up to 32 zone systems, although most designers will recommend an addressable system for any building which requires more than 8 zones.

Relay out puts

The main control panel will have a number of relay out puts to operate building interfaces such as lifts, access control. door holders, other fire alarm panels or a link to the fire brigade Control.

Control & operation of the main control panel is usually by a key or code, this restricts access to the panel to the specified users only.

A range of options are available such as one man walk test (useful for weekly testing), disabling of sounders or detection zones.

Fire Detection

A range of Automatic Fire Detection (AFD) can be connected to the detections zones see a small selection below :

Optical smoke detectors - commonly used in most areas where a fire may occur from combustible materials such as paper, wood, textiles.

Ionisation detectors - not as common as optical but still useful for clean burning fires such as methalated spirits, petrol or paint thinners, these detectors are more sensitive to this type of fire than optical detectors.

Heat detector - fixed temperature - where a smoke detector cannot be used because of false alarm problems such as smoke, condensation or dust, this would be in areas like kitchens or boiler rooms.

Heat detector - rate of rise - these detectors work by sensing a rising change in temperature & are not to be used in a kitchen or boiler room where the temperature can rise and fall quite rapidly. The ideal place would be a garage where fumes restrict use of smoke detectors, or a dusty environment.

Beam detectors - usually used in buildings with high ceilings such as warehouses, rather than 1 point of detection as with a smoke detector, these detectors spread a beam from one end of the building to another (from 10 - 100metres), they will sense smoke at higher levels than a standard smoke detector & can save money on installation time in large open areas

Flame detectors - utilised in oil stores, aircraft hangers, fuel depots or any areas where a sudden flash of heat / flame may occur & the need to detect this immediately is of paramount importance.

Conventional equipment used by Assured Fire & Security

We only use fire alarm equipment of a high calibre & of good reliability. All too often companies are now competing for the cheapest price which usually means using cheap inferior equipment.

At Assured we never compromise on quality or reliability, after all we are installing life safety systems for you, your staff & visitors & this should never be compromised.

Some of the equipment we use & there website links are below:

C- Tech - http://www.c-tec.co.uk

Ken-Tec Electronics - http://www.kentec.co.uk

Apollo - http://www.apollo-fire.co.uk

Hochiki - http://www.hochiki.co.uk

Klaxon - http://www.klaxonsignals.com