It has always been difficult to honestly ensure your well-being, but losing what you have justly acquired in a fire or theft is a shame, and you need to earn money again... A fire and security alarm (FS) allows you to reduce the risk of property loss due to misfortune to a minimum, and the insurance premium rates for housing equipped with it are significantly below. Nowadays, another favorable circumstance has appeared - installation fire alarm a person familiar with the basics of electrical engineering and household work can do it with his own hands, and the legalization of a correctly assembled system most often does not require compliance with complex formalities.
Really? OPS is a serious matter; the Ministry of Emergency Situations must respond to an alarm. And by law, the installation of a fire alarm must be carried out by a licensed organization, everyone knows this. Yes, but modern electronics have so simplified the construction of automatic security systems (AOS), while at the same time increasing their functionality and reliability that, figuratively speaking, well-fed wolves vigilantly guard the grazing herd: professionals have stable income, focusing exclusively on security functions, and citizens, without straining their budget, ensure their safety.
To understand why do-it-yourself security and fire alarm systems have become quite real, and how to do it correctly, let’s briefly take a look at the evolution of AOS, the design of their entirety and its component parts, and the principles of organizing security services for residential premises.
How AOS developed
Before chips and reed switches
Initially, AOCs were built in the form of a chain of opening temperature sensors: spring contacts were soldered with Wood or Rose alloys with a melting point of 70-86 degrees. The chain was forcibly closed by a manual call point with normally closed contacts. All this together formed a loop Ш. When heated, the solder melted, the contacts diverged, the circuit broke, the relay included in it, also with normally closed contacts, was released, its contacts closed and turned on an alarm. By pressing the detector button, it was possible to give an alarm manually.
Such systems at the very least worked as local ones, but for communication with the central control panel they required a long line (LAN), prone to faults and having its own leakage resistance, wire resistance, capacitance and inductance, which could cause both false operation and non-operation due to real danger .
Therefore, on the consoles they began to include rays - loops from the LS - into the diagonal of the electric bridge, and into its opposite diagonal - the balanced circuit of the BC (see figure). The beam was no longer characterized by the resistance of the loop R Ш, but by the total resistance (impedance) of the subscriber Z A. By adjusting the BC, we achieved equality of its impedance Z to the impedance of the subscriber Z A. Under this condition, the potentials in the diagonal of bridge 1-2 turned out to be equal, and the voltage U 1 -2 =0. When the sensor was triggered, U 1-2 >0 occurred, which triggered the alarm.
The AOC bridge circuit made it possible to make an important improvement: They began to turn on a resistor of a strictly defined value R Ш in parallel to the detector. This made it possible to judge the nature of the operation by the value of U 1-2: if R Ш remained in the circuit, then someone pressed the detector button, then U 1-2 will be approximately half the maximum ; This is an "Attention" signal. If the sensor opens, we will see a clear open circuit and a maximum of U 1-2; this is “Anxiety”.
Such a system was not very reliable: the slightest malfunction would give a false alarm, a team would come out, and then the fitter, expressing his thoughts on this matter in any form, would go to find and fix it. False alarms reduced the degree of trust in the AOS and from the order to the installer the facility remained open. Moreover, splashes of solder sometimes got between the open contacts, and the sensor, “squeaking,” calmed down again. There were cases when criminals shot at the sensors with an air gun through the window, and when they saw that the squad had left, they knew that they had at least an hour to “do the job.”
The BC also caused a lot of trouble: the drug parameters fluctuated greatly. A worker with an electrical engineering education working on a control panel was greeted by the police and firefighters with open arms, but often soon had to sign a statement “on his own”: the salary was small (it wouldn’t go under knife or bullets), and the hassle was no less than that of opera operators.
In large facilities consisting of many subscribers (department store, post office), rays from the premises were combined into a local console - a control panel (PKP), which automatically gave an alarm over the telephone line when one of the rays was triggered. This made it possible to reduce the dependence of the BC on the state of the drugs, which were already under the control of the signalmen, but reduced reliability: having competently delved into the control panel, it was possible to disconnect the entire object from the remote control and operate there for your own pleasure.
At the same time, attempts were made to use parallel connection sensors with thermobimetallic normally open contacts, shunted R Ш. In theory, this would allow the value of U 1-2 to judge from a remote control the location of the trigger, which a sequential system does not allow. However, the open bimetal turned out to be extremely unreliable: the sensor with oxidized contacts did not announce itself in any way in advance, and then remained silent, like a fish on ice, when the fire was already blazing with all its might.
Reed switches
Sealed magnetically controlled contacts - reed switches - made the first revolution in AOS and OPS. Reed switches can withstand billions of operations without oxidizing the contact surfaces, and the problem of temperature operation was easily solved by using holding magnets made of materials with a Curie point of 70 degrees: when heated, the magnet stopped magnetizing and the contacts opened.
The principle of the reed switch allows it to be switched, which gives a reliable sensor suitable for both serial and parallel fire alarm systems. True, the accuracy of determining the trigger location using analog methods remained low, so parallel analog alarm systems did not become widespread. Nevertheless, it was thanks to reed switches that a fire alarm in the apartment appeared: the reliability and low cost of the sensors ensured the cost of the system, affordable even for the average Soviet consumer.
The first smoke detectors also belong to the “reed switch era,” but they were by no means household ones: smoke detection was ensured by ionization of the gap between the fixed contacts, for which it was illuminated by an ampoule with a radioactive isotope. Alarm installers were afraid of such sensors, in a thick steel case and marked with a radiation hazard sign, like fire, and they were rarely used at particularly important facilities.
At the same time, PKPs also began to transform: the use of microcircuits with a medium degree of integration and analog-to-digital converters (ADCs) made it possible to simplify the BC or completely abandon them and measure the beam parameters directly. The first wireless control panels with autonomous power supply also appeared, regardless of telephone lines giving an alarm to the control panel using the Altai system - the prototype of the modern mobile communications, invented in the USSR back in the 50s.
Chips and lasers
A real revolution in the OPS was carried out and made publicly available by the big integrated circuits(LSI, chips) and miniature semiconductor lasers. This affected all links of the OPS, and in new system The best of previous achievements fit in organically (see the picture earlier in the text below).
Sensors using laser detectors monitor temperature and smoke in several parameters at once, which eliminates false alarms (see figure on the left). Some sensors combine the functions of motion detectors; they will be discussed below. “Smart” sensors can also be autonomous, equipped with a built-in battery.
The control panel of our days is a computerized device that can work both with “smart” junior colleagues and with old, but absolutely fail-safe and very cheap reed switches. This made it possible to include SPU in the household fire alarm systems - a signal and triggering device, which, based on a signal from the control panel or directly from the sensor, includes signboards, flashing lights, sirens and opens the valves of the automatic fire extinguishing system.
Modern alarm systems are digital-analog parallel-addressed: each sensor has its electronic address stitched into it, and the control panel knows exactly where everything happened. Using advanced software, analog sensors are also quite accurately controlled by loop parameters. The alarm signal is sent via GSM to mobile phone owner and computer security organization. The alarm can be duplicated directly from the chip sensor, and the activation of the control system can be done in addition to it from the gearbox.
Motion sensors on the same chips and infrared lasers have made the alarm systems truly security: they control the entire volume of the room or the area of the yard. The laser scanner signal is converted into a code, and the control panel processor continuously compares the codes one after another, filtering out interference from weather, precipitation, and small safe objects.
The capabilities of a modern fully functional security system are presented in the figure. This one is quite expensive, but the system is simpler, quite reliable for an apartment, and you can assemble it yourself. How will be described below, but for now let’s see what is needed and what can be achieved in general:
- Source uninterruptible power supply(UPS) is necessary for the alarm system to continue to operate in a de-energized apartment;
- Universal sensor-announcers: on the left is a group of autonomous ones, for example. in the garage;
- Motion sensors;
- Electronic lock;
- Reed anti-burglary contactor;
- Sign board;
- Local alarm;
- Display with control panel;
- Automatic OPS.
Let's give some explanations. Firstly, reed tamper sensors are still in their place, not competing with motion sensors, and the point is not only in cheapness and reliability. The small reed contactor is easy to hide; its operation is not detected by the anti-scanner. The search for such a “bug” (and it is unknown whether it exists at all) with skillful installation requires so much time that hacking loses its meaning.
Secondly, instead of any of the devices in pos. 7, 8 can be connected to SPU. Thirdly, according to item 10: the alarm system must be powered from a separate circuit breaker turned on BEFORE the apartment one, otherwise reliable operation of the system is not guaranteed. And finally, a remote control with an access code display allows you to independently reset, test and reconfigure the alarm system.
Organizational structure
A radical improvement in the technical base has also entailed an improvement in the organizational structure of the emergency response system: subscribers rarely connect to the EMERCOM console, it is expensive and overloads both equipment and personnel. The role of signal concentrator was taken over by private security firms. It does not light up or is stolen everywhere and not always, and with an acceptable load they can gain a lot of subscribers, which provides a decent income for a small monthly fee.
This system is also beneficial for the owners: a private licensed security guard will be happy to advise, help with advice, and he has no experience in interacting with the Ministry of Emergency Situations and the police. And since the owner still pays him with his hard-earned money, it is easier to demand it if something happens than from a government agency.
Let's take care of the alarm
Do you need a project?
A fire alarm project is needed, and not so much for formal reasons. Only a security guard with extensive experience will be able to accurately indicate the location of devices, their types and connection diagram. Otherwise, the flame may rage beyond repair, and the attacker, immediately spotting the “homemade” (they are well versed in alarms), will only grunt and, having “bombed the hut”, will sit at ease in the owner’s favorite chair, drinking the owner’s cognac, smoking the owner’s cigar, gently stroking the bag on her knees, tightly stuffed with the owner's goods and looking ironically at the sensors in full combat readiness.
However, security companies, generally rightly believing that the main thing is real security, not paperwork, often make concessions to potential subscribers: they agree to make a cheaper project, a sketch, or limit themselves to an even cheaper consultation: where to install which sensors, where to place the alarm control panel, what cable and how to connect everything.
Then, after checking the work, they put him under guard, and based on the documents, they pass him by retroactively. The owner is no worse off for this: once the contract is signed and the apartment is already under control, the security guards bear all the responsibility. The components of a modern security system are completely reliable, maintenance A fire alarm system comes down to a periodic check of its operability and readiness, which, together with the security company on duty, can be carried out by the owner himself, so, as a rule, problems with service do not arise.
How to do what?
The law does not prohibit you from making an OPS yourself, but they won’t take one on the remote control. We will have to limit ourselves to displaying an alarm on a mobile phone, but this is already a serious help in misfortune: the Ministry of Emergency Situations and the police are obliged to respond to any signals from citizens. Therefore, we will describe which equipment to choose for which case, and how to correctly assemble it into a workable whole.
PKP
The types of modern control panels are shown in the figure. The first one on the left is a professional multi-beam analog-to-digital one. These can work with any security system schemes, connect in cascade, ensuring the protection of objects of any degree of complexity and conduct a dialogue with the computer of the security organization, recording and transmitting a complete picture of the development of the situation. They are not used in everyday life.
The next one is semi-professional, digital for parallel address fire alarm systems. It is shown open because From the outside it is a blank box. At the bottom right there is an individual entrepreneur; Next to it is a battery, quite powerful, apparently, for several hours, up to a day, autonomous operation.
On the top left is an electronic unit, and in an empty space next to it in 24-hour guarded premises there is a control panel, but it is usually placed further away. The fact is that the heart of the OPS, although equipped with a self-defense system, is still the most vulnerable place security system. The work of the processor can be detected by a special scanner, similar to what car thieves do, and interfered with in a manner undesirable for the owner.
Therefore, the control panel is strongly recommended to be placed in a hidden, hard-to-reach and fairly well electrically shielded place, say, in a reinforced concrete basement. As for the RS482 serial interface, which connects the control panel and the remote control, its signals are very well encoded, and it is impossible to get through it to the processor.
Semi-professional PCPs are used in everyday life in elite estates individually or collectively residential complexes: one such control panel allows you to connect up to 255 sensors to it.
The next one is a multi-beam household control panel. This is a device that is already affordable for the average citizen. This device is intended for private households with outbuildings: in addition to servicing reed switches and chip wire beams, it can process signals from 2-8, depending on the model, wireless sensors.
The one on the far right is the simplest apartment control panel. The cheapest models serve only one beam (you don’t need more in an apartment), but, like all of the above, they can transmit a signal to a mobile number. The number in inexpensive household control panels without access using a code from your own remote control is flashed upon purchase or from a security company, so you need to keep the phone with it charged and with a non-empty account: mobile operators They charge a fee for receiving messages via GSM.
Household control panels must be equipped with detailed instructions with typical OPS diagrams, a list of types and models of sensors compatible with the device and recommendations for installing the system. Often the kit includes a flashing beacon for the front door and a “Protected object” sticker. These are very useful additions: their presence most often forces villains and vandals to go away.
The control panel must comply with the European standard EN54, which is ensured by SSPB, LPCB or VdS certificates.
Sensors
Sensors and their connecting wires are the key component of the alarm system, which determines its reliability as a whole. First of all, about the wires. Sensors are no longer connected using telephone “noodles”, fragile and unreliable: on sale there are many types of signal two- and multi-core cables in a round outer sheath, which can be laid along the walls so as not to be conspicuous, and hidden under decorative sheathing. But we should talk in more detail about the sensors themselves.
Choice
For apartment best option– good old reed caps, see fig. For the kitchen, it is desirable to have a chip one that reacts, in addition to heat, to smoke. If significant valuables are stored in the apartment, then it is better to install fully functional ones with motion detectors near their locations.
In a private house, a motion sensor in the yard with a built-in control system loaded onto a lighting lantern would be useful. And it will scare away uninvited guests, and you won’t have to stumble in the dark: the SPU will illuminate.
Multifunctional sensors are necessarily equipped with an indicator LED, while the simplest ones can be with or without it. The first is preferable: the glow or, conversely, the extinguishing of the indicator indicates a malfunction of the sensor. If there is a false alarm, there is no need to climb the ceiling with the tester - the bad sensor is immediately visible.
Accommodation
At first glance, the standards for placing OPS sensors are very liberal, see Fig.: no further than 4.5 m from a wall or corner and no more than 9 m between sensors. But this was done only for the convenience of configuring a specific OPS, but in fact the placement of sensors is a delicate matter.
Firstly, when placing them on walls, there must be at least 0.2 m to the ceiling, otherwise the sensor may end up in a smoke pocket and give a false alarm. Have you seen smoky rooms? The upper corners are the most smoky there. Secondly, with beams on the ceiling, the sensors need to be placed on their lower surfaces, and not on the sides or in the space between the beams, for the same reason.
And finally, the sensor does not survey the entire hemisphere, and its sensitivity depends on the distance to the source of danger. The controlled area in the form of a circle in an empty room depends on the ceiling height as follows:
- Up to 3.5 m – up to 85 sq. m.
- 3.5-6 m – up to 70 sq. m.
- 6-10 m – up to 65 sq. m.
- From 10 m – up to 55 sq. m.
By flame:
- Up to 3.5 m – up to 25 sq. m.
- 3.5-6 m – up to 20 sq. m.
- 6-9 m – up to 15 sq. m.
- Over 9 m – not controlled; the fire will become a fire before the detector is triggered.
“Before” in front of the area means that this is the maximum achievable value - in empty room with proportions in terms of 3/4. Accurate calculation of the location of sensors in habitable rooms requires computer modeling or the eyes of an experienced specialist. If the alarm system is done independently without output to the security console, then we can assume that one sensor in the living room “sees” below a square with side L equal to the ceiling height of up to 4 m. The outermost sensors should be placed at half this distance from the nearest wall, and the intermediate ones – at a distance L from each other. In long and narrow rooms, the main consideration is the distance between the sensors.
Example: corridor in Khrushchev 1.75x4 m; ceiling height - 2.5 m. Two sensors are needed, located at 1.75/2 = 0.875 from end walls. In the bedroom of the same Khrushchev building 2.5x4.5 m, two sensors are also needed 1.25 m from the end walls.
Connection
Fire alarm sensors are connected strictly according to their instructions. The beam loop always ends with a termination resistor R. Its value is indicated in the instructions for the control panel. Default R=470 ohms, but ratings of 680 ohms or 910 ohms may be required. Let us explain in more detail only two frequently requested points.
First– inclusion of five-terminal IP-212 sensors, which have proven themselves, in a two-wire loop. How to do this is shown in the figure on the left.
Second– connection of conventional sensors with one terminal block. The cable wires should enter/exit the terminal block in a MIRROR way, as shown in Fig. right.
Third– sensors with two terminal blocks. The left block is for the CABLE, which is connected according to the instructions or as described. But the right one should be sorted out before purchasing: it is intended for autonomous activation of the SPU; Some of the most common circuits of such sensors are shown in the last figure.
If the contacts of the loop (terminals 1-4) and the SPU (terminals 6-8) are electrically separated, as in the rightmost position, then you need to find out the permissible voltage and current or power of the SPU. If the contact is common, as in the other three positions, then the voltage is 12 V at a current of up to 200 mA, and to the SPU it will go from the loop, i.e. load the sensor with light bulbs, bells, etc. you can’t - the control panel will fail.
We sincerely wish everything or everyone who intends to ignore your OPS complete failure: nipped in the bud or sentenced to the fullest extent of the law.
In this article we will talk about how it goes correct installation and installation of fire alarms. We would like to note right away that such an installation requires certain knowledge!
For convenience, we have divided the article into the following components:
Correct installation of fire alarms
First you need to develop a project that outlines the main nuances during the installation of a fire alarm. First, the location of the control point is determined, and then the methods of communication. You also need to familiarize yourself with the availability of fire extinguishing modules, types of sensors and other information. But be sure to take into account that the signal wires should under no circumstances be located near a heat source. Control equipment and sensors should be installed only in positions where there is less chance of touching them and causing damage.Then you need to install the equipment, so you need to decide in advance what the complexity of the fire alarm system is. It depends on the level of fire risk in the room, which can be completely different. If the room has a small area, then it is necessary to install non-addressable alarm systems, but if the object has a large area, then it is necessary to install an addressable system. The fact is that the address system quickly determines the location where the fire occurred, so it is preferable. You won’t have to spend a lot of time searching for the room where the fire occurred.
The analogue addressable system is the most popular in lately. All this is due to the fact that special sensors make it possible to find out the temperature change and even the level of smoke in the room. In principle, every fire system alarm gives detailed information about the state of the room, because there are many sensors in the room that have a common connection using loops, which makes it possible to connect to a computer and configure it. If the sensor finds a signal, then the light or sound alarm is activated. If the fire alarm has special modules that trigger fire extinguishing, then the control system will definitely activate it.
Features of installing fire alarm sensors
A smoke detector is a fire alarm sensor; it is an extremely simple device. He has small size and is attached to the ceiling or wall in the apartment. There are two main types: photoelectric and ionization. Photoelectric is triggered if smoke passes between the photo and the LEDs. And the ionization one is triggered due to smoke entering the current that passes between the wires. It is impossible to say exactly which option is preferable, since the ionization one turns on due to a strong fire, and the photoelectric one due to a huge amount of smoke. Therefore, our online magazine site believes that the best option will use two sensors at once.It is recommended to install sensors between places where a fire can start without any problems. For example, in the kitchen while preparing food. Installation in the living room, bedroom, hallway and other places is also recommended. Keep in mind that extra protection never hurts. True, installation in the kitchen requires special installation, because the humidity there is consistently high, so the sensor may work incorrectly. Be sure to install the device as far as possible from batteries and heating devices, fluorescent lamps, vents and so on.
Almost all smoke alarms use batteries to last, so it's a good idea to be on the safe side and check them as often as possible. You can check the sensor itself, this is easy to do - hold a lit candle directly near the sensor, and the fire will trigger its activation. Remember that dust on the sensor can dull its action, so you need to wipe it as often as possible.
Almost always the sensor fire safety mounted in the ceiling at a distance of 300 mm from lighting fixtures and walls. Wall model installed at a distance of 200 mm from the ceiling, so that there are no unfilled air spaces where smoke will stop circulating and the sensor can be activated. If the ceiling has cross beams with a thickness of about 10 centimeters, then the sensor must be mounted on the base, and not between the beams. If the beams are thick, if it exceeds 10 centimeters, contact a specialist.
There must be sensors on absolutely all floors. The first is installed above the base of the stairs, the second in the middle of the hallway, the third on the ceiling in the bedroom, and so on. Then the installation is carried out additional sensors in the hallway, living room, kitchen and other places where there are electric heating devices.
What wires should I use when installing a fire alarm?
Before choosing cables and wires, you need to study the requirements that apply to them in Russia. During the installation of fire alarms, it is necessary to lay the cables in such a way that their condition is automatically monitored along the entire length. As a rule, cables have wires whose cores are made of copper. If during installation you do not think about the fact that you will control fire extinguishing systems automatically or a smoke removal system with voice notification, then you can not select additional channel communications. If such control is planned, then you must install a communication channel and connecting lines made in the form of telephone cables.Connecting lines with telephone or control wires must have an additional reserve of loops of approximately 10%. You can also connect radial loops directly to the fire apparatus, but only if the information capacity does not exceed 20 loops. But if the alarm is of a ring type, then the end and beginning are connected directly to the terminals that are located in the receiving and control device. Corrugations should not be installed in the box and hose if the wires have extremely high voltage. If the parallel laying has a voltage of about 60 volts, then to the lighting and power devices there should be a distance of approximately 0.5 m. Do not forget that it is advisable to divide the cables into segments and use junction boxes. It is better to carry out installation in an accessible place on suitable height, this especially applies to the device installed at the end of the loop, because it allows visual control during operation.
Fire alarm installation rules
Control devices, together with reception and control devices, must be installed in the area where on-duty personnel are present every day. Of course, sometimes it is quite possible to install on site without personnel, if there are reasons for this. For example, if there are no employees who are on duty 24 hours a day, but there is another point that receives information about what is happening at your facility. That is why in the room where you install sensors you need to make sure that fire and security alarms work correctly and unauthorized access is prohibited.The amount of capacity in the receiving and control devices and the number of loops that are needed to work with fire notifications should be about 10 pieces and 10 percent. Reception and control devices must be mounted on walls, structures and partitions that do not contain flammable materials. Installation of such equipment is quite possible on structures that are made of flammable materials, but only if they are covered with a steel sheet with a thickness of about 1 millimeter or other non-flammable sheet material with a thickness of about 10 millimeters. It is very important that the material protrudes beyond the contour of the mounted equipment by about 10 centimeters.
Do not forget that the distance from the top edge of the control panel used to the ceiling of the room, which is made of non-combustible materials, should be about 1 meter. If there are several control and control devices adjacent to each other, as well as control devices, it is necessary that there is a distance of about 50 millimeters between them. You also need to take care of a sufficient height, since the control panels are installed in such a way that the distance to the operational controls is about one meter.
The room with personnel or a fire station must be located on the ground or first floor of the building. You can design a room above the first floor, but on the condition that the exit will be in the corridor or lobby. Also, the exit should be adjacent to the landing so that there is a quick exit to the outside of the building. The distance from the fire station to the room with personnel who work 24 hours a day must be at least 25 meters. It is very important that the room meets the necessary characteristics:
- Minimum area 15 square meters, preferably more.
- Humidity is 80% and temperature is about 18-25 degrees Celsius.
- Artificial and natural lighting should be comfortable. Be sure to have emergency lighting.
- Illumination should be as follows: natural - 100 lux, artificial ( fluorescent lamps) – 150 lux.
How can I get a fire alarm license?
To obtain a license for servicing, installing and repairing automatic fire alarm devices, as well as automatic fire extinguishing systems, you need to fill out necessary documents and spend a lot of time. For example, if you are registering your company or want to staff an office where there is an increased risk of fire, then you first need to decide on the system itself. Perhaps a certain automatic fire extinguishing system is more suitable for you than another. Next, fill out a certificate in which you indicate the material and technical base and write down all the mechanisms and machines with the nomenclature and full volume that will be needed to carry out the work. Very important nuance is that it is necessary to evaluate and check the material and technical base during the preparation of the act, which demonstrates an assessment of compliance with the conditions, requirements and license as a whole.Next, think over a system for monitoring work and determining its quality. Here you will need to provide a copy of the manual for using the devices, a certificate from the manufacturer, where the control forms will be demonstrated, and so on. Forms of control can be output, input and operational. After this, you need to write an application and submit it to the authority that issues the license. When filling out an application, it is very important to take into account Russian legislation in relation to the activities of your organization.
An important role is played by the operating personnel and their qualifications, so you must provide information on the qualifications of all employees who will provide services on this equipment. To check the qualifications of your personnel who will service and install new equipment that guarantees fire safety in the premises, check their education, for example, check their skills on tests or simply look at the very presence of secondary, higher or special education. Experience and work experience are also very important, since according to the law, only people who have worked in the Russian Ministry of Emergency Situations for at least five years can service such equipment. Obtaining a license depends on how conscientiously the employees applied for a job, and if experience and education are falsified, new personnel will have to be recruited.
Fire alarms and additional equipment that can record the location of a fire are needed by any organization. You shouldn’t skimp on equipment and maintenance, because if the circumstances go wrong, you can lose absolutely everything.
Ecolife Group carries out installation of automatic fire alarms and turnkey fire extinguishing systems for enterprises, office and shopping centers, schools and sports facilities, apartments, country houses, cottages and other facilities. The company also accepts maintenance and repairs of all types of fire alarm equipment.
Contract for the installation of fire alarms, a complete set of documents
Our company works with legal and individuals. We conclude an agreement for all services provided, which is a document that clearly defines the cost and timing of the work. Pre-agreed terms reduce risks for both parties, and also ensure the benefits of the transaction for the seller and buyer.
Signing the certificates of completed work and acceptance and transfer of equipment means the successful completion of the work. We provide a full package of documents, including invoices, acts, invoices and cash receipts for cash payments, commissioning reports, and system settings. After completing the work, we continue to work with you as a consultant and service organization.
An engineer’s visit to calculate the cost of work is free of charge.
Fire alarm installation cost
| Name of work | Unit change | Cost, rub |
| Installation with connection of a control panel | pcs. | 1500 |
| Installation of intermediate devices for the number of beams | pcs. | 1200 |
| Installation with connection of the internal power supply | pcs. | 500 |
| Installation with connection of an external power supply | pcs. | 900 |
| Control panel | pcs. | 1300 |
| Two-Wire Link Controller | pcs. | 900 |
| Relay block | pcs. | 900 |
| Fire extinguishing indication unit | pcs. | 800 |
| Fire extinguishing and control panel | pcs. | 1500 |
| Interface converter | pcs. | 700 |
| Branching-isolating block | pcs. | 400 |
| Address expander for 8 addresses | pcs. | 700 |
| Address expander for 2 addresses | pcs. | 400 |
| Redundant power supply RIP | pcs. | 1200 |
| Battery 7 Ah | pcs. | 350 |
| Addressable analogue fire detector | pcs. | 600 |
| Fire detector thermal addressable analogue | pcs. | 600 |
| Analogue smoke detector | pcs. | 450 |
| Fire detector thermal analogue | pcs. | 400 |
| Manual addressable fire detector IPR-513-ZA isp.02 | pcs. | 500 |
| Linear fire smoke detector | pcs. | 900 |
| Cost of commissioning of OPS systems | set | negotiable |
| Corrugated cable laying | ||
| Open fastening with tie or bracket | m | 30 |
| Behind the false ceiling | m | 30 |
| Under the floors | m | 40 |
| By trays | m | 50 |
| Installation of corrugations with drilling | m | 60 |
| Installation of the box with drilling | m | 60 |
| In the tray | m | 40 |
| In a box | m | 20 |
| Shaving (concrete, brick, asphalt) | m | 300 |
| In the ground | m | 300 |
| Tightening the cable into the corrugation | m | 10 |
| Drilling holes 10 cm | pcs. | 100 |
| Difficulty factor | ||
| Works | Coefficient | |
| Outdoor installation from May to October | 1,2 | |
| Outdoor installation from October to May | 1,5 | |
| Installation at a height of 3 to 4 meters | 1,2 | |
| Installation at a height of 4 to 5 meters | 1,4 | |
| Installation at a height of 5 to 6 meters | 1,6 | |
| Installation after hours and weekends | 1,3 | |
| Installation in rooms with a large number furniture and people | 1,3 | |
To calculate the exact cost of fire alarm installation work, call us or send your existing fire alarm project. We will calculate the cost of alarm installation within a day.
Installation of fire alarm systems is carried out on the basis of approved working (design) documentation.
In its absence, the engineers of Ecolife Group of Companies are ready to perform for you design work. To do this, we will need floor plans of your facility and technical requirements in the form of a technical specification for the design of a fire alarm.
After completing the project, our specialists will begin work on installing an automatic fire alarm system. Thus, Ecolife Group of Companies carries out the design and installation of fire alarm systems in the complex.
Our specialist visits the site free of charge to calculate the price of a fire alarm, draw up a Commercial Proposal and an Agreement. Contact us by phone, email or the order form on the website.
Fire alarm installation: how we work
Fire alarm installation: stages of work
When the design work is completed, we can assume that an automatic fire alarm system already exists, albeit only in theory for now. All technical decisions have already been made, the type of alarm system has been selected, necessary equipment and materials selected. This system is unique and it will not fit any other object. The next stage is installation work, which will put the plan into practice and “breathe life” into the most important human protection system.
That's why, installation of fire alarm systems- not only expensive, but also the most critical stage of work. It requires attention and control not only from the contractor, but also from the owner of the facility.
Any construction and installation work can be divided into two components:
1. Direct execution of work;
2. Preparation of acceptance documentation.
It cannot be said that one is more important than the other. Both components are needed for further stable operation of the system and its operation. Before handing over the completed work, the customer must have a fully tested and functioning fire alarm system and several folders with documentation.
As in the case of design, it would be nice for the customer to have in his arsenal a person who is able to understand all this and control the process. Large companies have no problem with this. An engineer is appointed by order, or even an entire engineering organization is contracted to carry out technical supervision of the work and the preparation of documentation. If this is a one-time job for the customer, or there is simply no way to hire someone additionally, then you will have to figure out the key points yourself.
So where does the installation of a fire alarm begin?
The installation process can be divided into several stages:
- Selecting a contracting company;
- Inspection of the object and conclusion of the contract;
- Purchase of equipment and materials;
- Carrying out electrical installation work;
- Carrying out commissioning work.
Fire alarm installation: choosing a contractor
When performing installation work, the most important thing for the customer is preparation. Find a company that will meet all the requirements, discuss all the subtleties and features of the object - this must be done before signing an agreement or contract. During the execution of work, it will only be possible to monitor compliance with all contractual obligations without interfering in the production process.
The choice among companies that install fire alarms is quite wide. Even in a relatively small city you can find a couple of such organizations. In order for the company to carry out this type activity, it must at least have a license from the Ministry of Emergency Situations of the Russian Federation.
Recently, specialized organizations have become members of Self-Regulatory Organizations (SROs) and received a “Certificate of Admission to Certain Types of Work.” In this certificate they are interested in the section “Installation of fire protection equipment.” This certificate gives the right to perform fire alarm installation work in strictly defined cases. Therefore, if you need to install an alarm in any “standard” operating building (shop, office, hotel), then having such a certificate is not necessary. But, if the company you choose has it, then this fact can definitely be considered an advantage.
Site inspection and conclusion of a contract for the installation of a fire alarm
Now a little about what is required from the customer before concluding a contract for installation work.
Firstly, you should have a project at stage “P” in your hands (or on electronic media). Based on this project, the installation organization will be able to calculate the price of the equipment, as well as the cost of construction, installation and commissioning work. If you have a project in electronic form, then you can simply call several companies, send them the project by e-mail and ask them to submit a commercial proposal. In this case, you will not have to waste time on meetings or travel. And the proposals received can be compared in terms of cost and other conditions (work completion time, presence/absence of advance payment, etc.) at a time convenient for you.
Secondly, the customer needs to imagine in detail how the work will be performed from an administrative and economic point of view. You can even draw up a small document with your requirements for the work. And such a document will be called, as in the case of design, “Technical Specifications”. Samples of such a document can be easily found on the World Wide Web. In this document you can, for example, indicate specific hours for performing work. If the object of protection is a hotel, then this requirement will be relevant and justified. Also, one of the requirements may be cleaning of premises (dry or wet) at the end of each working day, with determination of the location for storing waste. Or you, as a customer, can request that a responsible employee from the company be permanently present at your site so that any technical or organizational issues that arise can be resolved at any time.
Thirdly, it will be extremely useful for both the installation organization and the customer to inspect the site before concluding a contract. The main purpose of this event is to check the compliance of the design and actual data of the facility. In practice, it happens that from the moment the execution is completed design work A significant period of time may pass before the start of alarm installation work. This happens especially often at facilities under construction. And during this period, some architectural changes may occur at the site, which they simply forgot to include in the automatic fire alarm project. In such cases, a preliminary examination can become extremely important.
For the customer, this is also a great way to get to know a potential contractor better and an opportunity to see him “in action.” And the contractor will be able to visualize the scale of the upcoming work and discuss some of the installation details with the owner of the facility.
It is clear that such requirements can lead to an increase in the overall cost of performing the work. But if there are circumstances that you consider extremely important when installing a fire alarm, then they must be conveyed to the contractor. And it is best if your requirements are in writing. In this case, they can be fully transferred to the contract or this Technical Specification can be drawn up as an annex to it.
Fire alarm installation: purchase of equipment and materials
This task can be accomplished in several ways.
First way- supply is entirely handled by the customer. There can be many reasons for such contractual relationships. If during the negotiations the parties came to such a decision, then it is beneficial for them. For the installation organization this is at least convenient:
- no need to spend resources on purchasing and transporting equipment to the site,
- in case of receiving defective or “insufficient” equipment, there is no need to replace it;
This type of cooperation is quite common. In order to buy equipment you do not need any licenses or certificates. But, if the customer decides to take on the role of supplier, then he must understand that any questions regarding the discrepancy between the purchased equipment and the design equipment, as well as possible problems with its replacement or return will fall on his shoulders. If all this does not cause much trouble, then this method can easily be put into practice.
Second way, when the purchase of materials is entrusted to the installation organization, more common. In this case, the installation organization also becomes a supplier for the customer. There are several reasons for this.
Firstly, installation organizations buy equipment for fire automatic systems on an ongoing basis. This means that they know all the nearest trading companies and are guided by the prices of this or that equipment from different sellers. As a result, installation companies have significant discounts from the sellers they work with, so they can also help save your budget.
Secondly, all installation companies have a certain amount of equipment in stock. It is not at all necessary that the installation company will be able to fully provide the facility with everything necessary from its stocks of warehouse equipment. But collecting equipment from your warehouse in order to immediately begin installation work is quite possible. And in a day or two they will be able to deliver everything else directly from the trading company. Convenient, isn't it?
Thirdly, all responsibility for the quality and performance of the equipment will lie with the installation organization. That is, if some equipment turns out to be defective or damaged (which in practice happens much more often than we would like), the installation organization will have to take on the job of replacing it. Moreover, given the availability of a warehouse, most often the replacement occurs instantly and the installation process does not have to be stopped.
Third way Most often used by large companies. It consists of organizing a tender for the purchase of equipment. If you do not have such experience, you may encounter a number of serious difficulties. Probably the most accurate way to organize a purchase would be to contact professional companies that not only carry out these purchases, but will also be able to provide detailed advice. If there are well-designed technical requirements to purchase, you can achieve very serious cost savings. Otherwise, you will still have to spend time and human resources to monitor compliance with the terms of the supply agreement.
Carrying out installation work on site. Alarm installation
After the preparatory work has been completed, installation can begin.
It's no secret that installation of an automatic fire alarm is a process that must comply a huge number requirements. If the customer has specialists who can monitor the installation process, this will greatly simplify the control task. If there are no such specialists, they can be hired. And then only administrative functions will remain with the customer.
In addition to design technical solutions and the conditions for performing work dictated by the customer, there are a number of requirements that the installation organization must comply with.
- Since the work is aimed at ensuring fire safety, it must comply with fire safety standards.
- Installation of an alarm system is a job that is directly related to electrical installation work. And despite the fact that these works mostly relate to low-current systems (up to 60 V), they must meet the requirements for electrical installation work.
- Do not forget that installation of a fire alarm is one of the stages of construction. Therefore, the installation of alarm systems must comply with building regulations.
- In addition to all of the above, when working it is necessary to comply with safety precautions and labor protection requirements. There are quite a lot of such requirements. And if the protected object is a zone increased danger, then their number increases and becomes tougher at times.
It may seem that so many requirements are simply impossible to meet. But for experienced companies that have been conducting this activity for several years and have equipped several dozen or hundreds of objects with fire safety automation, all these norms and rules are very familiar and are followed at the level of habit. They can competently justify and document every step they take and every action they take. Therefore, when choosing a company as a contractor, do not forget to find out about the experience in this field and the number of completed projects. It would not be superfluous to clarify about working on objects that are similar or similar in their specificity to your object. It is worth noting that installation organizations that care about their reputation prepare separate documents that, in chronological order, reflect the list of iconic objects on which the company worked. Such documents are called “Business Reputation”. Customer reviews may be added to this document.
Construction and installation work begins with introductory and initial briefings. Both of them are aimed at ensuring that the work carried out is carried out with maximum attention and is safe for each participant in the production process.
Introductory briefing carried out by the customer. It can take place either orally or in the form of a video presentation. The main purpose of this briefing is to convey information about the object, its purpose and features from the point of view of safe installation work. An introductory briefing is carried out by a labor protection engineer or other responsible person who performs these functions based on the order of the manager. After the briefing, each employee puts his signature in the briefing log, thereby confirming its completion.
Initial briefing also carried out on site. Unlike the introductory briefing, it is conducted by a responsible representative of the installation organization. And it is aimed primarily at informing workers about labor protection and safety requirements. When performing electrical installation work, which includes work on installing a fire alarm, these requirements relate to safety when working with electricity, hand and power tools, rules for working at height, etc. If the object is a high-risk area (gas, oil, metallurgical, etc. industries), then in addition to general rules, training is supplemented by cross-industry or highly specialized requirements.
Throughout the entire period of construction and installation work, the customer has the right to monitor and control the process of their implementation. If the customer has questions, he has the right to ask them both orally and in writing. After all, despite the fact that introductory training has been carried out, the customer is responsible for the specialists working at his site. Moreover, the customer has the right to suspend work if he sees violations in their production or non-compliance with labor protection requirements. As a rule, most of these issues are agreed upon through negotiations. In very rare cases, when certain rules are violated systematically, the customer may terminate the contract.
Commissioning work when putting the fire alarm system into operation
After completion of installation work, it is time for commissioning work. The name speaks for itself about its composition. The essence of the work is to launch the mounted system and fix everything possible errors installation, malfunctions in the operation of system components, identify possible defective equipment. Also, during commissioning mode, it is necessary to test the system in all operating modes and make sure that it correctly and accurately processes received signals and sent commands.
Commissioning work should not be underestimated, especially if the object of protection is a large building with many systems associated with fire alarms.
Once the system has been fully checked and tested, it is left on for 72 hours. This period is called the “running period”. The meaning of this practice is to identify malfunctions in the operation of the system or its individual components that did not appear during testing.
It happens, albeit in very rare cases, that the customer hires a separate organization to carry out commissioning work. From a legal point of view, this is a completely acceptable measure. But if you look at this from an economic or organizational point of view, then the customer certainly loses. After all, the new contractor will include all overhead costs in the estimated cost, and to attract him again you will have to carry out a selection process, introduce him to the project and the facility, draw up terms of reference and provide instructions. Of course, this will take a lot of time and resources. On the positive side Such a step may only be the need to transfer installation work to a new contractor. That is, one specialized organization will be able to carry out an interim assessment of the work performed by another specialized organization. Otherwise, such a “castling” will only create problems. Therefore, in the vast majority of cases, installation and commissioning work is carried out by one organization.
After completion of the work, the installation organization notifies the customer in writing that it is ready for a comprehensive testing of the installed system.
Preparation of acceptance documentation for fire alarms
In order to document the fact of performing any construction and installation work, there is the so-called “Acceptance documentation”. As a rule, it consists of four sections:
- Permitting documentation;
- Working documentation;
- Production documentation;
- Executive documentation.
These sections are compiled on the basis of regulatory documents, state standards and building regulations. Depending on the type of work performed, the composition of the documents varies. Each section is compiled into a separate folder and provided with a register of the documents included in it. First of all, the contractor should know how to correctly and competently draw up the Acceptance Documentation. He, in fact, must develop it and sign it by everyone responsible persons involved in the work process. A detailed list of documents included in each section of this set is usually reflected already at the time of drawing up the agreement (contract).
After reading all the above information, it may seem that monitoring the installation of an automatic fire alarm on the part of the customer is an extremely difficult task. Especially for those who are faced with the need to equip a facility with fire-fighting automation for the first time.
Fire alarm installations are aimed at informing people about the start of a fire. They are responsible for the timely implementation of fire extinguishing means, smoke removal, etc.
Installation of an automatic fire alarm and fire extinguishing system is mandatory in all facilities where people are located.
If a fire occurs, smoke or temperature rises, the fire alarm transmits a signal to the control panel, where the light comes on and an audible alarm is activated.
If there is an operator, he establishes a sequence of actions. Otherwise (if automatic configuration systems), the program itself performs the programmed actions. In this case, a fire alarm is triggered, the emergency exit displays light up, and if available, an unlocking occurs electronic locks on the emergency exit doors, the power is turned off and the uninterruptible power supplies are turned on.
Fire extinguishing installations based on the material used can be:
- Water;
- Foam;
- Gas;
- Aerosol;
- Powder.
From 0 rub./m2
From 300 rub./m2
From 2000 rub.
Working with us you get:
- Guaranteed to pass inspections of the Ministry of Emergency Situations the first time
- We eliminate the prescription in short terms
- We reduce personal risks for legal entities. persons
- We do not overestimate local estimates
- Project approval on time
- Installation work right on time
- Only trained specialists
- 24/7 technical support
Ready solutions
With the help of automation, the entire process of warning and extinguishing has been brought to perfection, which allows the source of fire to be dealt with in the shortest possible time without casualties.
Installation of an automatic fire alarm and fire extinguishing system on our own impossible, which is why it is necessary to turn to professionals. Specialists of the SpetsPozhSystem company who have many years of experience works in this field, will carry out this work professionally and with a guarantee.
Security and fire alarm
In some cases, it is advisable to combine fire and security protection. The cost of installing a security and fire alarm system will be significantly lower than installing two systems separately. In addition, such symbiosis makes it possible to control two systems from one remote control, which improves the quality of service.
Installation of security and fire alarm systems is carried out strictly in accordance with the project and includes:
- Control panel. Usually this personal computer with software installed on it;
- Reception and control devices that collect and process information;
- Sensors and detectors that are able to detect danger and transmit a signal about its presence to the central control panel;
- Executive devices. These are devices with which fires are extinguished;
- Notification devices whose main task is to announce an alarm through a siren or loudspeakers.
The price for installing a fire alarm by specialists from the SpetsPozhSystem company is 30% lower compared to similar offers from other companies. In addition, the designers of our company will produce a project that meets all standards, because we employ first-class specialists in this profile and with extensive experience in the field of designing fire protection systems.
Fire alarm sensors
One of important elements The fire alarm system is a sensor or detector. It is he who is the first to react to the danger that arises in the building and, depending on the design, notifies about what is happening.
The installation of fire alarm sensors in a building should be carried out depending on the perceived danger. Having determined the potential source of fire and flame spread, you can select the required detector:
- Thermal sensors. This device reacts to increasing temperature. It is very easy to maintain, but should not be used in buildings with high ceilings. In addition, it does not react to substances that do not emit heat when burned.
- Smoke detectors. These sensors are the most common because they respond to the emission of smoke, which often occurs in the early stages of a fire. Their disadvantage is that they often cause false alarms, and they may not be sensitive to certain types of smoke.
- Flame sensors. These elements are triggered by open fire. They became widespread at industrial facilities. This is a fairly expensive type of detector, and besides, they can be triggered by welding, incandescent lamps, etc.
- Gas sensors. They react mainly to carbon monoxide and carbon monoxide, which are produced during the combustion process. Most often they are installed in residential buildings.
- Combined sensors. These devices can combine the functions of several sensors, which allows for better detection of fire hazards.
The cost of installing a fire alarm in Moscow can vary over a fairly wide range. By contacting the SpetsPozhSistema company, you will be completely confident not only in affordable price, but also in high-quality design, installation and maintenance of all types of fire alarms.
A properly installed fire alarm is the key to the safety of your property and your own safety. On modern market several effective systems, working on different principles. Explore the features available options, select the most suitable type of fire alarm, and then read the guide for calculating and installing sensors and what to do in case of a false alarm.
The main types of modern fire alarms
There are systems that work using smoke and heat sensors. The principle of operation of the devices is clear from their name: thermal sensors are triggered when the temperature rises, while smoke sensors are activated when smoke forms within the range of action. The sensors themselves can be powered by special control panels or batteries.
An addressable analogue system, as well as an addressable polling alarm system, is well suited for the home. Installations of the targeted survey type find fires as quickly as possible. Modern addressable analog alarms are able to determine the location of the fire and even take some actions, for example, turn off the ventilation system, close or open everything in the house, turn on an audible alarm, etc.
Modern fire alarms with a built-in GSM transmitter are available for sale. In the event of a fire, such a system will call or send an alarm message to a specified number. This will give the owner the opportunity to immediately call the fire department and personally come home. Modern GSM systems can be programmed to notify several phone numbers at once, which is very convenient.
The nuances of installing and maintaining a fire alarm system
Fire detectors must be installed on every floor and in every room of the house. Attics and basements are also no exception. The best place to place fire alarm sensors is the ceiling.
You can install the sensors yourself, but if possible, it is better to entrust this work to a licensed company.
Once installed, the alarm system will require regular maintenance. If the sensors are powered by batteries, check the functionality of the controllers every month. The batteries themselves usually use up their life in a year. It is recommended to replace the sensors with new ones at least every 7-10 years.
If the system elements are powered from lithium battery, sensors also need to be tested monthly. If it is necessary to replace the battery with a new one, all warning devices must be replaced at the same time.
If the apartment or house has wired system, check its serviceability every month. The power supply needs to be changed annually. The service life of the entire system is on average 7-10 years.
When installing a fire protection system, pay special attention to the cross-section and location of the cables. Consider the fact that in the future you may want to redesign rooms or make basic repairs. Try to think things through so that any repairs can be performed without making changes to the alarm system configuration.
Provide reliable protection systems from various types of unacceptable external damage (insect damage, chemicals etc.). The norms and rules for installing the systems in question are dictated by the relevant GOSTs. Carefully study the current regulatory documentation before starting installation work.
Buy equipment only from verified and licensed suppliers. Alarms of dubious manufacture usually behave unpredictably. For example, they often operate without any hint of a fire, but during a real fire they remain stubbornly silent. Therefore, do not skimp on your own safety and buy a quality system from famous manufacturer. All the same, the alarm system will not have to be replaced very often.
After installation, set your alarm to service. To do this, it is better to contact a specialized company.
In preparation for installing a fire alarm, a number of special calculations must be performed. They will help you choose the most optimal system option and avoid unnecessary costs during the installation and maintenance of sensors.
One of the most important stages Alarm calculation is to determine the appropriate power supply capacity. Decide which energy source will be most convenient for you to connect the sensors to. There are quite a lot of such sources: from ordinary batteries to solar batteries.
The required battery capacity is indicated in the instructions for the alarm. Check the value found with the information on the battery case. If the battery capacity is not enough, purchase a more powerful battery or connect several batteries in parallel.
In case parallel connection multiple batteries, make sure their voltage is the same. Otherwise, the total capacity of the battery circuit will decrease.
Check the required wire cross-section for connecting fire alarm sensors. This information is usually provided in the system manual. Also pay attention to indicators such as battery capacity for standby and alarm modes. Add these values up and you will get the total required battery capacity specifically for your system.
Connecting an alarm using the example of typical sensors
First stage. Define required quantity alarm sensors. To determine the required number of controllers, you need to know the area of the room served and the ceiling height. In the current regulatory documentation it is said that if the ceiling has a height of no more than 350 cm, then one sensor is sufficient to service 80 m2. At the same time, fire safety rules require that even in the most small room there were at least two controllers. Follow the last rule.
Second stage. Mark locations for installing fire detectors. The maximum permissible distance from the wall to the sensor according to regulatory documents is 450 cm. The sensors themselves must be installed in increments of at least 900 cm. This rule is relevant for situations where the ceiling is single-level and its height does not exceed 350 cm.
Wall-mounted models of fire sensors should be placed at a distance of 200 mm from the ceiling surface.
Third stage. Fix the sensors at the marked places and connect them to the power source using two-wire wires. The sensors are connected to each other in series. You need to install a resistor in the terminal block of the last controller.
Fourth stage. Test each sensor after connection. To do this, light a candle and pass its flame near the detector.
If the fire alarm goes off without any sign of a fire, you need to follow a few simple steps to turn it off. Otherwise, loud sound alerts and the activation of unnecessary additional funds will cause you a lot of trouble.
First option. Find out why the alarm went off in the first place. You cannot turn off the system without first checking all serviced premises. High-quality systems extremely rarely work without any reason. Maybe there was smoke or a real fire in some room of the house. If there is an “irritant”, eliminate it, and the system will turn off on its own. Be sure to check the condition of the electrical wiring.
Second option. If you have not found any reasons for the alarm to go off, proceed to turn it off. The shutdown procedure depends on the type of specific system. The simplest option is to disconnect the alarm from the power source. However, this option can be considered solely as a temporary solution to the problem, because With a disabled alarm, you are jeopardizing the safety of your home and everyone in it.
Third option. If your home has a centralized control panel, turn off the alarm from it. In some situations this procedure requires entering a special code. If you don't know it, contact the company that services your fire alarm.
Fourth option. If the controller becomes very dusty, for example, when repair work, to disconnect it will be enough to remove it from the sensor front panel and rub its “insides” with a cotton swab lightly moistened with alcohol. If this was the problem, after such cleaning the alarm will turn off. From now on, monitor the condition of the sensors and clean them promptly.
Fifth option. If you need to turn off the fire alarm in a particular room, you can wrap the sensor with adhesive tape. However, after such processing the controller will become useless. Remove the tape immediately after identifying and correcting the problem.
Sixth option. If none of the above helped, use the most radical solution - cut the wires connected to the sensor. The fire alarm will turn off, but will become completely useless until you repair it. Try to figure out the cause of the false alarms of the sensors as quickly as possible and eliminate the malfunctions.
If this is possible, contact a specialized company. Its employees will diagnose the fire alarm and give recommendations on further actions on your part.
Thus, in self-installation There is absolutely nothing complicated about fire alarms. You just need to understand in detail the sequence of connecting the sensors and follow the instructions. Be sure to check the manufacturer's recommendations. Many modern systems have a number of features that need to be clarified separately. Your safety depends on the correct installation and connection of sensors, remember this.
Happy work!
Video - DIY fire alarm installation