It is extremely important to have an up-to-date fire detection system installed and maintained to ensure that you can detect fires before any harm will occur to people or property.
We supply and install fully integrated Fire Detection systems that allows for detection of fires, using world-class products and providing the best service, every time.
Why are Fire detection and alarm systems required?
- Notify building occupants to take evasive action to escape the dangers of a hostile fire.
- Summon organised assistance to initiate or assist in fire control activities.
- Initiate automatic fire control, suppression systems and to sound alarm.
- Supervise fire control and suppression systems to assure operational status is maintained.
- Initiate auxiliary functions involving environmental, utility and process controls.
- Allow firefighting teams to quickly identify the source of the fire.
- Systems may incorporate one or all of these functions.
Alarm Initiating Devices
Heat detectors – fixed temperature & rate-of-rise.
Fixed Temperature Devices:
- Oldest types in use
- Relatively inexpensive
- Least prone to false alarms.
- Operate on the principle that the temperature in a room will increase faster from fire than from atmospheric temperature
- Will initiate an alarm when the rise in temperature exceeds 7-8C per minute
- Alarm can be initiated at a temperature far below that required for a fixed-temperature device.
- Reliable devices, not subject to false activation.
- But, if not properly installed, they can be activated under non-fire conditions (eg. detector located too close to doorway and subject to extreme fluctuations in temperatures).
- Can initiate an alarm much quicker than a heat detector because it responds to smoke generated very early in a fire’s development (incipient stage).
- 2 Basic types: Photoelectric & Ionization
- 3 Basic types of flame detectors –
- Ultraviolet light (UV)
- Infrared (IR)
- Can detect both types of light
- Monitors levels of carbon dioxide and carbon monoxide (common to all fires).
- More discriminating than other detectors – can be designed to be sensitive only to gases produced by specific types of hostile fires and ignores gases produced by friendly fires.
- Not many in use – very specialized applications.
- Single device can be designed to have more than 1 function eg. heat/smoke, smoke/carbon monoxide detectors.
- Different combos make the detectors more versatile and more responsive to fire conditions.