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Florida Fire Alarm Codes

Goals

Fire protection has three major goals:

• .Continuity of operations - on a public scale, this is intended to prevent the interruption of critical services necessary for the public welfare (e.g., a 911 emergency call center).
• Property protection - on a public scale, this is intended to prevent area wide conflagrations. At an individual building level, this is typically an insurance consideration (e.g., a requirement for financing), or a regulatory requirement.
  • Life safety - the minimum standard used in fire and building codes.A

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                                  Fire alarm Panel

                           Fundamental configuration

• Fire alarm control panel: This component, the hub of the system monitors inputs and system integrity, control outputs and relays information.

• Primary Power supply: Commonly the non-switched 120 Volt Alternating Current source supplied from a commercial power utility. In non-residential applications, a branch circuit dedicated to the fire alarm system and its constituents. "Dedicated branch circuits" should not be confused with "Individual branch circuits" which supply energy to a single appliance.

• Secondary (backup) Power supplies: This component commonly sealed, lead-acid storage batteries or other emergency sources including generators, is used to supply energy in the event of a primary power failure.

• Initiating Devices: This component acts as input to the fire alarm control unit and are either manually or automatically activated.

• Notification appliances: This component uses energy supplied from the fire alarm system or other stored energy source, to inform the proximate persons of the need to take action, usually to evacuate.

• Building Safety Interfaces: This interface allows the fire alarm system to control aspects of the built environment and to prepare the building for fire and to control the spread of smoke fumes and fire by influencing air movement, lighting, process control, human transport and exit.

                          Initiating devices:

Manually activated devices; manual pull station are constructed to be readily located (near the exits), identified, and operated.

Automatically activated devices can take many forms intended to respond to any number of detectable physical changes associated with fire: convected thermal energy; heat detector, products of combustion; smoke detector, radiant energy; flame detector, combustion gasses; carbon monoxide detector and release of extinguishing agents; water-flow detector. The newest innovations can use cameras and computer algorithms to analyze the visible effects of fire and movement in applications inappropriate for or hostile to other detection   methods.                

                             Notification appliances:

Audible, visible, tactile, textual or even olfactory(odorizer)to alert the occupants. Audible or visible signals are the most common and may utilize speakers to deliver live or pre-recorded instructions to the occupants. In the United States, fire alarm evacuation signals are required to use a standardized interrupted three count temporal pattern to avoid confusion with other signals using similar sounding appliances. Other methods include:

Audible textual appliances, which are employed as part of a fire alarm system that includes Emergency Voice Alarm Communications (EVAC) capabilities. High reliability speakers are used to notify the occupants of the need for action in connection with a fire or other emergency. These speakers are employed in large facilities where general undirected evacuation is considered impracticable or undesirable. The signals from the speakers are used to direct the occupant's response. The system may be controlled from one or more locations within the building known as Fire Wardens Stations, or from a single location designated as the building Fire Command Center. Speakers are automatically activated by the fire alarm system in a fire event, and following a pre-alert tone, selected groups of speakers may transmit one or more prerecorded messages directing the occupants to safety. These messages may be repeated in one or more languages. Trained personnel activating and speaking into a dedicated microphone can suppress the replay of automated messages in order to initiate or relay real time voice instructions.

Building safety interfaces with Access control:

Magnetic Smoke Door Holders: Wall or floor mounted solenoids or electromagnets controlled by a fire alarm system or detection component that magnetically secures spring-loaded self-closing smoke tight doors in the open position. Designed to de-magnetize to allow automatic closure of the door on command from the fire control or upon failure of the power source, interconnection or controlling element. Stored energy in the form of a spring or gravity can then close the door to restrict the passage of smoke from one space to another in an effort to maintain a tenable atmosphere on either side of the door during evacuation and fire fighting efforts.

Duct Mounted Smoke Detection: Smoke detection mounted in such a manner as to sample the airflow through duct work and other plenums specifically fabricated for the transport of environmental air into conditioned spaces. Interconnection to the fan motor control circuits are intended to stop air movement, close dampers and generally prevent the recirculation of toxic smoke and fumes produced by fire into occupied spaces.

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 Smoke Detectors Hard wire Alarms

 Few of us realize how easily — and how quickly — fire can harm our loved ones. Fortunately, there is a simple, affordable way to help prevent this from happening: the smoke alarm.

By providing an early warning in the event of fire, smoke alarms may allow you and your family sufficient time to reach safety. Many people have neglected to install smoke alarms despite their life-saving potential and low cost. Even those who do have smoke alarms often take them for granted — forgetting that they need some attention to continue working properly. UL offers the following tips for purchasing and maintaining smoke alarms.

Step 1: Buy smoke alarms – and cut your family’s risk in half.

Experts report that consumers may cut their risk of dying in a home fire in half simply by having a smoke alarm installed. Smoke alarms are available at nearly all hardware, department and discount stores, often for under $20. So don’t delay – get out there and buy one. The peace of mind you’ll have from knowing that your family is safe and secure is worth the investment.

Step 2: Look for the UL Mark

When you purchase a smoke alarm, look for the UL Mark on the product as well as on the packaging. The UL Mark tells you that a representative sample of the smoke alarm has been evaluated by UL scientists and engineers to nationally recognized safety requirements. It also means that UL conducts follow-up evaluations to countercheck that samples of the smoke alarm continue to meet these safety requirements.

Step 3: Don’t just buy one! There’s safety in numbers

Install at least one smoke alarm on each floor of the house or residence and outside all sleeping areas. Some fire safety advocates recommend installing smoke alarms inside each sleeping area if sleeping with the door closed.

Step 4: Keep your alarms working properly

Working smoke alarms are needed in every home and residence. Test and maintain your smoke alarms at least once a month, or follow the manufacturer’s instructions. Smoke alarms most often fail because of missing, dead or disconnected batteries. Replace batteries at least once a year. Testing is generally as simple as pushing a button and listening to hear the beep.

Step 5: Practice a fire escape plan

In addition to installing smoke alarms in your home, UL also recommends that you develop a fire escape plan and practice it at least twice a year with all members of your household. In the event of a fire, every family member should know at least two ways out of each room. Stay as close to the floor as possible during your escape. Hot air and smoke rise, so the air nearest the floor may be safer to breathe. If you encounter a closed door during your escape, feel the door before opening it. If it’s hot to the touch, use another exit. The heat could indicate fire on the other side of the door. Teach your children how to escape in case of a fire — not to hide under a bed or in a closet.

Some individuals, particularly children, older people and those with special needs, may not wake up to the sound of a smoke alarm. You should be aware of this when developing your home fire escape plan.

Designate a well-lit place, a safe distance away from your home, where everyone will meet in the event of a fire. This will help firefighters determine if anyone else is still inside the home. And remember, never return to a burning building for any reason.

Review of smoke alarm installation, safety and maintenanceRead and follow the manufacturer’s installation and maintenance instructions (including regular testing).

Install fresh batteries in your smoke alarms at least once a year. Don’t allow anyone to disconnect or “borrow” the batteries from your smoke alarms. A smoke alarm can’t work unless it’s connected to a power source.

If the warning alarm sounds, don’t panic. Stay close to the floor and get out of the building. Before opening any doors, check the temperature. If the door feels hot to the touch, don’t open it. Use an alternate exit.

Depending on the location of the elevator, fire service code will vary state to state and country to country. Fire service is usually split up into two modes: Phase One and Phase Two. These are separate modes that the elevator can go into.

Phase one mode is activated by a corresponding smoke sensor or heat sensor in the building. Once an alarm has been activated, the elevator will automatically go into phase one. The elevator will wait an amount of time, then proceed to go into nudging mode to tell everyone the elevator is leaving the floor. Once the elevator has left the floor, depending on where the alarm was set off, the elevator will go to the Fire Recall Floor. However, if the alarm was activated on the fire recall floor the elevator will have an alternate floor to recall to. When the elevator is recalled, it proceeds to the recall floor and stops with its doors open. The elevator will no longer respond to calls or move in any direction. Located on the fire recall floor is a fire service key switch. The fire service key switch has the ability to turn fire service off, turn fire service on or to bypass fire service. The only way to return the elevator to normal service is to switch it to bypass after the alarms have reset.

Phase two mode can only be activated by a key switch located inside the elevator on the centralized control panel. This mode was created for firefighters so that they may rescue people from a burning building. The phase two key switch located on the COP has three positions: off, on, and hold. By turning phase two on, the firefighter enables the car to move. However, like independent service mode, the car will not respond to a car call unless the firefighter manually pushes and holds the door close button. Once the elevator gets to the desired floor it will not open its doors unless the firefighter holds the door open button. This is in case the floor is burning and the firefighter can feel the heat and knows not to open the door. The firefighter must hold door open until the door is completely opened. If for any reason the firefighter wishes to leave the elevator, they will use the hold position on the key switch to make sure the elevator remains at that floor. If the firefighter wishes to return to the recall floor, they simply turn the key off and close the doors.

Fire alarm evacuation 

Fires are sometimes categorized as one-alarm, two-alarm, three-alarm fires, or higher. The number of alarms correlates with the level of response by local authorities, with an elevated number of alarms indicating increased commitment of resources. The term multiple-alarm is a quick way of indicating that a fire was severe and difficult to contain. This system of classification is common among both fire departments and consequently news agencies

The initial dispatch is referred to as the first alarm and is typically the largest. Subsequent alarms are calls for additional units as needed, usually because the fire has grown and additional resources are needed to combat it or the incident is taking long enough that firefighters on scene need to be replaced due to exhaustion. The number of alarms doesn't necessarily indicate the size or the severity of the actual blaze so much as the size of the incident and how long and hard the fire department had to work to control it.

The units dispatched on the first and subsequent alarms depends on what resources are available in the area and so changes from department to department. Requests for units from outside jurisdictions normally don't occur in urban areas until elevated alarms are reached (third and above), but depends on the location of the incident and the condition of the authority having jurisdiction at the time of the incident.