To have an effective indoor fire alarm system, it is necessary to study the installation location carefully, ensure the aesthetics and help the fire detectors to quickly detect smoke or abnormal temperature in the room. . So how to arrange the most effective and safe fire alarm equipment? Let ‘s find the answer to the above question with P69 Company !

What is a fire alarm?

Some basic functions of fire alarm devices

• Provides information to be able to detect an ongoing fire within a certain range.
• Warn, alarm everyone to promptly move to a safe location.
• Transmit a fire notification signal to the nearest fire department to update the situation.
• Automatically disconnect the power and control some devices when necessary.

How does a fire alarm system work?

• When there is a warning about an incident such as a sudden increase in temperature, smoke or electric sparks, the input fire alarm devices such as detectors, emergency switches will receive signals and transmit information to the alarm center. on fire.
• When receiving the signal, the fire alarm center will process the information, determine the location of the incident and transmit the information to the output devices (sub-display board, bell, whistle, light). At this time, the output fire alarm devices will emit an audio signal for people to recognize the area where the fire is happening and evacuate in time.

How to arrange the most effective and safe fire alarm equipment

Some of the most effective and safe installation of fire alarms that you may be interested in:

1. Installing fire alarms in bedrooms

More than half (55%) of all fire deaths occurred in the bedroom. More than a third (35%) of the victims were still asleep at the time the fire broke out. Half of all fire deaths occur between 10 p.m. and 6 p.m., when most people are asleep

Bedroom doors should be closed while sleeping to help limit the spread of fire, it is essential to set alarms in each bedroom because when the door is closed, it can reduce the decibel level of the alarm installed outside of the room to nearly half – from 85 db to 46 db. (CPSC)

2. Install fire alarms in the kitchen

Cooking is a major cause of fires and injuries in the United States, and is one of the leading causes of death in home fires. (NFPA); 41% of home fires are reported to start in the kitchen, and cause 15% of home fire deaths. (NFPA)

Install fire alarms at least 7m from cookware to prevent nuisance alarms. Also make sure that the alarm has a silence button, which will temporarily suppress the alarm in the event of a non-emergency.

3. Install fire alarm equipment in the corridor

Because sleeping areas are often located far from the entrance of a house, it is important to install fire alarms in hallways and at all exits from bedrooms.

4. Install fire alarms in living areas

Although only 4% of home fires start in the living room, family room, or office, fires cause up to 24% of deaths. (NFPA) .After the bedroom, most fires are related to smoking in the living room. (NFPA)

Oftentimes, cigarette butts are accidentally thrown into the trash can, or seat cushions.
In addition, because smoke tends to rise when burning, the alarm should be installed on the ceiling or high above the wall. Besides, it should be placed near the area of ​​​​the stairs going up and should not be located on the stairs. With a corridor over 10m long, one should be installed at each end.

Especially do not install in dusty, greasy places or near vents, ceiling fans and other drafty areas to prevent smoke from being drawn to the alarm area.

Things to keep in mind when installing a fire alarm system

– The fire alarm system needs to be designed and operated synchronously to promote effective fire protection

– It is necessary to know the appropriate technical parameters for the installation of fire alarm equipment such as: building type, number of floors, total area, height, basement…

– For particularly hazardous areas such as boiler rooms, processes involving liquids, etc., an area representative is required to understand the construction structure.

– In addition, some fire alarm devices need to meet prescribed standards such as:

•  Smoke detector: The time the smoke detector recognizes and warns the signal does not exceed 30s. When the smoke concentration in the environment is higher than the allowable threshold (15% – 20%), the device will send an alarm signal to the central cabinet for troubleshooting.
• Fire sirens: Need to be installed in security rooms, stairs, crowded places… to alert people around quickly.
• Emergency switch: Installed at conspicuous places such as corridors, doors, stairs, etc. to easily proactively transmit fire alarm information when necessary by pressing or pulling the emergency switch to alert move everyone around
• Central cabinet: Is the head agency that decides the quality of the fire alarm system, providing the detectors with automatic identification and processing of fire alarm signals. In necessary cases, the cabinet is capable of checking the operation of the system, indicating system problems such as broken wires, short circuits, etc.

The process of installing fire protection equipment

• Wire all installation locations of detectors and bell lights to the location of the fire alarm center.
• Measure the insulation resistance and then measure the continuity for the installed wiring.
• Install equipment such as fire detectors, light bells, fire alarm control cabinets, etc.
• Inspect the entire system and test the fire alarm devices.

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