Most fire alarm systems consist of the following components:
Fire alarm control panel – the system hub monitors inputs and system integrity, controls outputs and relays information.
Primary power supply – primary power for your fire alarm system is usually supplied in the form of 124V or 240V AC from the power company.
Keeping this in consideration, what is an automatic fire alarm system?
Below is a high-level overview of the components of an automatic fire alarm system. The basic purpose of an automatic fire alarm system is to detect a fire in its early stages, notify the building occupants that there is a fire emergency and report the emergency to first responders.
What is an initiating device circuit?
A supervised system (sometimes referred to as a “closed circuit” system) will create a trouble signal in the event of a break in the field wiring, disconnection or removal of an initiating device or notification appliance, failure of main operating power, discon- nection of the standby battery, or off-normal position
What are fire alarm notification devices?
A fire alarm notification appliance is an active fire protection component of a fire alarm system. A notification appliance may use audible, visible, or other stimuli to alert the occupants of a fire or other emergency condition requiring action.
Is a fire alarm a smoke detector?
A smoke detector is strictly a sensing device only, which senses the products of combustion (smoke) and sends a signal to a building’s fire alarm system to activate an audible, and sometimes visual warning or alarm. Smoke detectors must be connected to a building’s fire alarm system and are NOT a stand-alone unit.
What is a fully addressable fire alarm system?
An addressable fire alarm system is made up of a series of fire detectors and devices that are connected back to a central control panel. With addressable systems, each device has an address or location, enabling the exact detector that was triggered to be quickly identified.
What is the use of fire fighting system?
Fire hydrant systems are installed in buildings to help firefighters quickly attack the fire. Essentially, a hydrant system is a water reticulation system used to transport water in order to limit the amount of hose that firefighters have to lay, thus speeding up the fire fighting process.
What is the fire sensor?
Flame detector. Responses to a detected flame depend on the installation, but can include sounding an alarm, deactivating a fuel line (such as a propane or a natural gas line), and activating a fire suppression system.
How does a smoke detector work?
How they work: Ionization-type smoke alarms have a small amount of radioactive material between two electrically charged plates, which ionizes the air and causes current to flow between the plates. When smoke enters the chamber, it disrupts the flow of ions, thus reducing the flow of current and activating the alarm.
What would you do on hearing the fire alarm?
On hearing the fire alarm:
Ensure that all personnel in your designated area evacuate the building in an orderly manner, using the nearest available emergency exit.
Close all doors as you leave each room.
Check any disabled refuge in your area.
What is a conventional fire alarm system?
Conventional Fire Alarm System Vs. Addressable Fire Alarm System. The conventional fire alarm system is an early warning system design for small facilities. These fire alarm systems are inexpensive but sometimes it can be challenging locating the alarms.
How long have smoke detectors been around?
The 10-year-lithium-battery-powered smoke alarm was invented in 1995. NFPA began requiring the replacement of smoke detectors after ten years in 1999.
How is a sprinkler system activated?
In a standard wet-pipe sprinkler system, each sprinkler activates independently when the predetermined heat level is reached. Thus, only sprinklers near the fire will operate, normally just one or two. This maximizes water pressure over the point of fire origin, and minimizes water damage to the building.
What is a heat detector?
A heat detector is a fire alarm device designed to respond when the convected thermal energy of a fire increases the temperature of a heat sensitive element. The thermal mass and conductivity of the element regulate the rate flow of heat into the element. All heat detectors have this thermal lag.
What is an alarm used for?
A security alarm is a system designed to detect intrusion – unauthorized entry – into a building or other area. Security alarms are used in residential, commercial, industrial, and military properties for protection against burglary (theft) or property damage, as well as personal protection against intruders.
How are fire sprinklers activated?
As the fluid is heated it expands and shatters the glass bulb enclosure. Sprinklers are extremely reliable and do not activate without heat and only the sprinkler closest to the fire will operate, thus the phrase One-At-A-Time Activation . (Water is piped to each sprinkler head from your primary water supply.)
What is a central fire alarm system?
An alarm monitoring center or central monitoring station (also known as “CMS”) is a company that provides services to monitor burglar, fire and residential alarm systems. The Central Monitoring Station may also provide watchman and supervisory services.
What is a fire alarm panel?
A fire alarm control panel (FACP), fire alarm control unit (FACU), or simply fire alarm panel is the controlling component of a fire alarm system.
How do you turn off a fire alarm?
To reset a hardwired unit with a battery backup, perform the following steps:
Turn off the power to the smoke alarm at the circuit breaker.
Remove the smoke alarm from the mounting bracket and disconnect the power.
Remove the battery (for a sealed-battery model, click here to learn more).