Buying a fire alarm system is one of the most important things you can do to keep your home safe. In case a fire occurs, you want to become aware of it as soon as possible so that you can either put it out or escape.
The first step to protect lives and property from the consequences of fires is setting up a high-quality fire alarm system. After installing it, it’s important that you keep the system well-maintained to make sure it’s always working at its best.
In this article, we share with you all the information you need to buy the best fire alarm system.
Fire Alarm System Overview
A fire alarm is a unit made of several devices, which uses visual and audio signalization to warn people about a possible fire, smoke, or carbon monoxide occurrence in the area of coverage. Fire alarms are usually set in fire alarm systems to provide zonal coverage for residences and commercial buildings. The warning signal is either a loud siren/bell or a flashing light, or it can include both. Some fire alarm systems use additional warnings, such as sending a voice message or making a phone call.
Depending on the functionality and the integrated components, there are several classifications of fire alarm systems.
Automatic fire alarm systems are activated through fire detectors, such as smoke or heat sensors. Manual fire alarms are activated with manual call points or pull stations. There is no reason for a fire alarm system to exclude one or the other. Both can be included in the same system.
Conventional fire alarms work as one unit and cannot pinpoint the exact area of activation unless inspected. Addressable fire alarms have a specially dedicated address for each fire alarm detector that is connected to the control panel, for easier identification of the source of the danger.
One-stage fire alarm systems warn everyone in the building that a sensor has been activated. Two-stage fire alarm systems warn only certain people who are authorized to take appropriate action before the second stage. This system is designed to serve large public areas (for example, healthcare facilities) to prevent panic and inadequate frightful response.
To determine the most suitable fire alarm system, start by identifying your specific needs. Think about how many detectors need to install in your building. Go for a fire alarm system that is compatible with your current security system. Shop around for equipment that fits within your budget without sacrificing quality. Work closely with the vendor of the fire alarm system to correctly install the fire alarm system and properly integrate it with your existing monitoring and security system.
Give preference to systems that include additional features—such as a hush button, voice alarm, and backup battery—to improved usability. If you’re unsure about whether a specific feature of a fire alarm system serves your specific, contact the support of one or more vendors.
It’s also a good idea to contact the fire department and familiarize yourself with relevant fire codes and regulations. Make sure you compare the fire alarm systems offered by various vendors before you decide which one to buy.
Read online reviews from current and previous customers to get a sense of the quality and reliability of the fire alarm systems you are considering. You can also add to your shortlist of vendors by getting recommendations from friends, family, and colleagues who have a well-functioning fire alarm system.
Key Components of a Fire Alarm System
A conventional fire alarm system consists of the following devices:
· Fire alarm panel
· Detectors and bases
· Call points
· Sounders and flashers
· Power supply accessories (fire alarm batteries)
Wireless fire alarm systems do not use any wiring between the fire control panel and the other devices. Most fire alarms used today are wireless. The most advanced use smart technology and can be integrated into a smart home with various software applications.
The fire alarm panel (or the fire alarm control panel - FACP) is the base or the control hub of the system. It controls the settings of the other components and communicates the information through the system.
Fire detectors can be heat, smoke, or carbon monoxide sensors. They are placed around the building to trace the presence of such emergencies. Some advanced sensors can even detect radiation. Call points or pulls belong to manually-controlled fire alarm systems. Most residential properties don’t use them, but many business facilities still do. Sounders emit a loud siren signal. Flashers are for visual warnings and emit intermittent or rotating flashes (typically red or white).
A fire alarm system can use the main electrical power supply as a primary source. In case of power failure, the system switches to the secondary power supply, consisting of a fire alarm battery. Conventional fire alarms need frequent battery replacements. Some of them require basic technical skills, such as using a screwdriver to mount their parts on a wall or ceiling.
How a Fire Alarm System Works
Contemporary fire alarm systems use automatic functions to detect the occurrence of an event that may result in a fire. They receive a signal from a fire sensor (smoke, heat, or carbon monoxide detector) and automatically transmit it to the fire alarm panel.
In wireless systems, the signal from the detectors to the control panel is transmitted with radiofrequency. Heat detectors usually have built-in thermistors to sense the heat. Carbon monoxide detectors use integrated chemical, electrochemical, Opto-chemical, or biomimetic cells to trace the gas. Smoke detectors use photoelectricity or ionization to detect smoke or combustion particles. Combined detectors use a number of detection mechanisms.
The fire alarm panel activates the flashers or the sounders, turns on sprinklers (or they can be activated along with the detector), or makes a call to the authorities or to the occupants. If the fire alarm system is addressable, the source of the occurrence will be pointed on the control panel. Users on separate floors or in connected buildings can be notified in several ways: by horns, gongs, and loudspeaker messages advising appropriate action for each department.
How Fire Alarms Work with Access Control
Most buildings and office operators would agree that fire alarms are necessary, and, in fact, it would be extremely reckless to install an access control system that doesn’t meet all fire safety measures. It's recommended to implement an access control system that fully integrates with fire alarms and any other safety sensors on the property.
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