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Fire Alarms System Installations and Setup in Kenya
If you are seeking to install fire alarms in your home, business premises, warehouse or any other facility of public utility, look no further than DataWorld Systems. Here at DataWorld, We are committed to providing nothing short of the best services to our customers. Specifically, our professional services cover selling, delivery, installation, and routine maintenance to ensure that your home and/or business are protected at all times without fail. In this regard, Fire Alarm Systems are designed to alert people on emergencies to allow appropriate course of action for self-protect, staff, and the general public.
. Consecutively, fire alarms are installed in Offices, Factories, and public buildings, and they become handy in times of emergencies where they help save lives and avoid extensive property damage. Once an alarm is triggered through the set mode detection, the alarm sounders operate and warn people of impeding danger, as well as the need to evacuate immediately. It is possible ti incorporate a remote signal with the fire alarm, which can alert the fire response brigade through a central station for immediate action intended to extinguishing the fire the soonest possible. Fire alarm systems come in different types and structures. Here at DataWorld, we stock all types of fire alarm systems to ensure that we have an alarm for literally every customer based on need different circumstances. Notably, fire alarms operate with a fire alarm control panel, which is a central hub where all detector signals are wired to provide status indication to the users. In some cases, the the fire alarm control unit can be set up to trigger an alarm for utilization in routine fire and evacuation drills. This is essential because it provides a chance for staff members or family members to learn the appropriate course of action in case a real fire breaks up.
Types of Fire Alarm Detectors
At the heart of a fire alarm system are the detection devices that range from sophisticated intelligent smoke detectors to unsophisticated break glass units that are operated manually. The fire alarm detectors are categorized into heat detectors, smoke detectors, carbon monoxide detectors, multi-sensor detectors, and manual call points.
Heat Detectors
Heat detectors work in two major ways. One, a heat detector can operate on a fixed temperature basis, where it will trigger an alarm if the temperature goes beyond a pre-set value. Second, a heat detector can operate based on the rate of temperature change in an environment. Normally, heat detectors work in a similar way as an electrical fuse. The alarm detectors have a eutectic alloy that is heat sensitive. In the event that a particular temperature is reached the alloy changes from a solid to a liquid that triggers the alarm.
Smoke Detectors
Here at DataWorld, we stock three types of smoke detectors that include ionization, light scattering, and light obscuring. We provide appropriate advice to customers on the type of smoke detector best suit their needs to ensure that they make informed choices.
Ionization Smoke Detector
Ionization Smoke detector have two chambers. The first chamber is utilized as a reference to compensate for vicissitudes in ambient temperature, humidity or pressure. The second chamber has a radioactive source, usually alpha particle, which ionizes the air going through the chamber where a current flows between two electrodes. In the event that smoke enters the chamber the current flow decreases, and the drop in current flow triggers an alarm.
Light Scattering Smoke Detector
This smoke detector operates on the Tyndall effect where a photocell and light source are separated from each other by a darkened chamber that ensures that the light source does not fall on the photocell. In case of smoke passes into the chamber it causes scattering of the light from the source and fall on the photocell. As a result the photocell output is used to trigger an alarm.
Light Obscuring Smoke Detector
In this type of smoke detector, smoke interferes with a light beam between a light source and photocell. By measuring the amount of light it receives, the photocell the smoke detector uses the variation to initiate an alarm. This type of fire detection equipment is ideal for use to protect large areas. The light source and photocell can be positioned some distance apart.
Carbon Monoxide Detectors
Carbon monoxide detectors are electronic detectors used to indicate the outbreak of fire by detecting carbon monoxide level in the air. Carbon monoxide is a poisonous gas that is generated when combustion process takes place in a place with limited amount oxygen. Notably, on a point of information, carbon monoxide detectors are different from Carbon monoxide detectors used in the home for protecting residents against carbon monoxide poisoning resulting from incomplete combustion in appliances like gas fires or boilers. Carbon Monoxide fire detectors are more sensitive and respond more quickly in case the gas is detected in the air. Carbon monoxide detectors contain an electrochemical cell that exclusively senses carbon monoxide gas only.
Multi-Sensor Detectors
The Multi-sensor detectors use inputs from both optical and heat sensors and process the information through a sophisticated algorithm built into the detector circuitry. When polled by the control panel the detector sends back a value based on the combined responses from both the optical and heat sensors. The multi-sensor detectors are designed to be sensitive to a wide range of fires.
Manual Call Points
A Manual Call Point is alarm device that enables an individual to raise the alarm by breaking the frangible element on the fascia. The breaking of the glass instantaneously triggers the alarm. In some manual call points, the person raising the alarm is required to trip a switch after breaking the fragile glass.
Fire Alarm Systems
Aside from detectors, fire alarms are categorized into conventional alarm systems, addressable alarm systems, intelligent alarm systems, and wireless alarm systems.
Conventional Fire Alarm Systems
For a Conventional Fire Alarm System, physical cabling is employed to interconnect quite a lot of call points and detectors. The signals from the detectors are wired back to the main control unit. The call points and detectors are organized in “Zones” for easy locating of the cause of the alarm. This is essential for the fire response units and efficient building management. Every zone is indicated at the Fire Alarm Control Panel. Some are indicated with an indicator lamp, others a text display, and in some instances both lamp and text. Buildings and premises that are divided into many zones are easier to deal with because they provide accurate identification and location of alarm triggers. The Control Panel of a conventional fire alarm is wired to at least two sounder circuits that contain bells, electronic sounders or other audible fire alarm devices. These device become handy for alerting people when the alarm is triggered.
Addressable Fire Alarm Systems
The detection principle of an Addressable System works in the same way as a Conventional System. However, each detector is assigned a set Address and the Control Panel can then define exactly which detector or call point has initiated the alarm. The detection of addressable fire alarm system circuit is wired as a loop. An estimated 99 devices can be connected to each loop. The loop is usually fitted with Loop Isolation Modules. This ensure that the loop is sectioned to avoid losing an entire system in case of a short circuit but a small section only. This allows the fire alarm system to function properly and efficiently with manageable maintenance cost. Notably, in both the Conventional Fire Alarm System and the Addressable Fire Alarm System, the detectors are not intelligent because they only give output signals representing the value of detected phenomena. The job of determining whether there is a fire, fault, pre-alarm is left to the Control Unit.
Intelligent Fire Alarm Systems
In an Intelligent Fire Alarm system, each detector effectually incorporates its own computer that assesses the environment around it and send information to the Control Panel whether there is a fire, fault or the detector head needs cleaning. Fundamentally, Intelligent Systems are complex and incorporate more facilities compared to other fire alarm systems. As a consequence, they become handy in preventing the incidence of false alarms. Intelligent Fire Alarm Systems stocked at DataWorld come in 2, 4, and 8 loop versions. For that reason, large premises can be monitored from one single panel.
Wireless Fire Alarm Systems
The Wireless Fire Alarm Systems are an effective alternative to traditional wired fire alarm systems for all manner of applications. They alarm systems utilize secure, license-free radio communications to interconnect sensors and devices with the controllers. The concept provides numerous unique benefits and is an absolute intelligent fire detection system that needs no cabling. Whether your fire alarm requirements call for conventional cabled alarm systems or intelligent fire alarm systems, DataWorld got you covered.