Is it necessary to install a gas leak sensor: legal regulations and expert advice

Each apartment has a gas analyzer

Recall that on December 31 last year, an explosion occurred in a 10-story residential building in the city of Magnitogorsk, as a result of which an entire entrance collapsed. Another explosion occurred on January 14 in the Rostov region, which caused casualties.

These cases in the Russian Federation led to the conclusion that a specialized "gas police" was needed, because the current service could not cope.

Gas explosions in residential buildings happen on a regular basis, and it's scary.Many experts believe that the modernization of inspections and control of in-house and in-house gas equipment will not give a positive result.

And the reasons are as follows:

1. Inspections by a specialized service are carried out once every 24 months, and during this time anything can happen.
2. Qualification, conscientiousness of employees raise many questions, that is, doubts.
3. It is not entirely clear what to do for a family whose stove or water heater does not work well if there is no extra money.

The draft Federal Law “On Amendments to Article 166 of the LC RF” was developed with the aim of creating legislative conditions that are focused on preventing dangerous situations - gas leakage, explosion in residential buildings.

Is it necessary to install a gas sensor?

Good afternoon.

I am re-planning the gas supply with the transfer of the boiler in a private house.

Forced to put a gas alarm sensor.

Question: how reasonable is this requirement and what law regulates it? Natalia Hello, Natalia.

Today, the installation of gas pollution control systems and fire safety is regulated by the norms of SP 62.13330.2010 dated 2011-05-20. According to paragraph 7.2 of these Rules, the installation of a gas sensor, a fire detector and an electromagnetic valve is provided for in

. However, this does not mean at all that all residential buildings do not need to install control signaling devices and actuators.

Exceptions are the premises:

• equipped with boilers and water heaters with a capacity of more than 60 kW;
• basements, ground floors and outbuildings - regardless of the performance of heat generating installations.

It will be necessary to install carbon dioxide level alarms even if gas-burning equipment with an open combustion chamber is installed in the room (in other words, when the air required for the operation of a gas boiler or gas column is not taken from outside, but from the same room in which it is installed). As you can see, the norms clearly spell out all cases of mandatory installation of control and alarm devices.

If your case does not fall under any requirement of the Rules, feel free to write a request addressed to the head of the Gorgas, and then contact Rostekhnadzor with his answer and project documentation.

For our part, we still recommend that you listen to the recommendations of the gas service and spend money on installing a signaling device with a cut-off valve, because your safety and the safety of property depend on it.

Thanks to my versatile hobbies, I write on various topics, but my favorite ones are engineering, technology and construction.

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Perhaps because I know many nuances in these areas, not only theoretically, as a result of studying at a technical university and graduate school, but also from the practical side, since I try to do everything with my own hands.

Who will pay for "smart" devices?

So, who will pay for the purchase and installation of gas analyzers? It is understood that the capital repair funds at the regional level will not cope with the task, despite the fact that the devices are relatively inexpensive. It is possible that they will provide support for a financial plan for low-income citizens.

Most likely, the bill will be adopted, but the Russians will have to lay out the money from their own pockets.You don't have to go far for an example - electric meters are installed at the expense of property owners. Of course, the idea is good, but it costs money.

What is a gas leak sensor?

If a gas leak is most often detected only by a specific smell, which often happens too often, then the gas leak sensor allows you to do this much earlier. It is designed to detect household gas particles in the indoor air that exceed the allowable rate (in percent).

Having determined the increase in gas concentration, the device informs the person about this with a sound signal. Also, modern sensors are equipped with the ability to additionally report this information to the gas service, which allows you to act quickly in situations where the owner of the apartment is not at home.

The design of the gas sensor includes a sensitive element that is triggered at the slightest deviation from the standard values ​​​​of air composition.

It is important to remember that in practice, users often encounter cases of erroneous operation of a gas leak sensor. But do not neglect this signal and turn off the device in the future.

In matters relating to gas equipment, it is better to play it safe once again and check whether everything is in order.

The leak sensor itself is a small device. It can be made in accordance with a certain style and in different colors. The place of its installation is regulated by the requirements of the instructions.

In terms of dimensions and installation, household gas analyzers are quite compact and can be placed anywhere.

Device and principle of operation of the device

Depending on the groups of gases to be determined, the design of the device provides for various types of sensors: optical, electromechanical, thermomechanical, and others.

The main nodes in the design of the sensor:

• primary converter, which determines the amount of gas concentration in the surrounding space;
• a measurement module that compares the data received from the primary converter with the allowable rate of gas in space;
• an actuator that automatically shuts off the gas supply from the system;
• a power source that ensures continuous operation of the sensor - usually a battery or a mains power supply.

All structural elements are assembled in a compact package.

When the gas concentration exceeds the allowable value, the sensing element of the primary converter, which measures the composition of the ambient air, changes its characteristics. This change becomes a signal for the measurement module, which, in case of deviation from the set values, gives a light / sound signal, as well as a command to shut off the gas (if it is a sensor with a cut-off valve), and turns on an alarm.

Basic Functions of the Gas Leak Sensor

Next, let's talk about whether, in principle, a gas leak sensor is needed for domestic use.

So, based on the principle of operation, the gas leak sensor performs the following functions:

• accident notification;
• automatic shut-off of gas supply using electromagnetic shut-off valves;
• activation of ventilation providing air extraction.

This is just an operation.Further actions to eliminate the leak must be carried out by specialists of the gas service. It turns out that such a sensor is very useful in everyday life.

The installation of the sensor is not a substitute for monitoring the normal functioning of the gas equipment. Even with a sensor, it is necessary to periodically check the gas communications and the correct operation of the connected devices

The nuances are different, but the essence is the same!

There may be many options, but the scheme is one:

focusing primarily on pensioners,

choosing a time when the elderly are left alone at home,

posing as employees of the gas services,

referring to the supposedly legal obligation to install gas detectors,

threatening fines and shutting off gas,

giving examples of recent tragedies,

The distributors of these products can be both scammers dressed in overalls of service organizations, and individual entrepreneurs, LLCs with properly executed documents, acting legally and not hiding from deceived buyers.

All kinds of GazControl, Vector-A LLC, ProfGazBezopasnost LLC, GazRegionControl LLC and others ...

Small firms exist for no more than a year, and then they are liquidated and reappear under a different name. Firms are "solid", confident in their impunity, continue to officially prosper.

The brand of devices and the manufacturer also do not matter. In the case of Galina, it was “FTS-05KB”. In Krasnodar, “Patriot KVF-01” was noted, in Izhevsk “SZ-1-1AG”, in Chelyabinsk “Rescuer”, “SG1-SNm” and so on.

Service life of gas meters

What is the service life of a gas meter? – YouTube

Feb 10, 2015 . Stavropol gas workers answered topical questions from consumers in the Hour of Housing and Public Utilities program on radio Komsomolskaya Pravda.

What is verification of gas meters?

How to calibrate gas appliances and what is their service life, we will tell in the article. Service life of the gas meter. Gas meter verification period.

Gas meter - Wikipedia

Gas meter (gas meter) - a metering device designed to measure. x 155 mm. The mass of the counter is 1.9 kg. Service life not less than 24 years.

If the meter has expired - OOO Gazprom.

Feb 7, 2013 . Water, electricity, gas - the benefits of civilization, so to speak, with delivery. It must be remembered that any counter has a service life,.

. measurements both during manufacture and throughout the life of the meters; . In order to install a gas meter, you need:

Verification of gas meters | To the population | Gazprom.

The verification period for the metering device starts from the date of verification on. Verification of metering devices is carried out by the bodies of the state metrological service. . In addition, it is possible to replace an expired gas meter with a .

IMPORTANT INFORMATION for subscribers who have installed gas.

9 Oct 2013 . After the expiration of the calibration period, the readings of the gas meter cannot. During the guaranteed service life of the meter, the device.

Verification of gas meters. When, by whom, at whose expense and at what cost.

March 15, 2013 . Is it possible to supply a gas meter manufactured and. The gas meter calibration period is considered from the moment of its manufacture. According to .

Checking the gas meter: procedure and timing

Feb 9, 2017 . Why is a gas meter checked and what is it. Devices are disassembled and cleaned, which allows to increase their service life.

Almost half of the gas meters do not "survive" to the first.

8 Jan 2016 . Recall that the verification period for a gas meter is 5-8 years, depending on . Another problem is the timing of verification of meters.

The service life of the gas meter, at whose expense the replacement and who.

What is the service life of a household gas meter?

How long do gas meters last?

How long do gas meters last? Which manufacturer is more reliable? What determines the service life?

Service life of the gas meter

Verification of gas meters should be carried out by a gas company with which the owner of the apartment has concluded an agreement. How to calibrate gas appliances and what is their service life, we will tell in the article.

How often is a gas meter changed?

The gas service of the district removes the meter and takes it to the Standardization Center, and within a month a straight pipe is installed instead. According to the rules, gas consumption should be calculated according to the average indicators for the previous year.

What are the terms for replacing meters established by law?

Gas metering devices. The gas meter is a complex technical instrument.

If the service life of the meter has expired - Gazprom. ”

- Aleksey Vladimirovich, sometimes a technical passport for gas equipment, in particular, for a meter, is taken by employees of the gas service when it is installed. How to determine the life of the meter in this case?

How to find out the service life of a water, gas or gas meter.

What laws regulate the operation and shelf life of water, gas, electricity meters?

for subscribers who have installed gas meters

After the expiration of the verification period, the gas meter readings cannot be taken into account, the calculation for the consumed natural gas is carried out in

Service life of the gas meter

The life of my gas meter according to my passport is 20 years. Why should I trust him after 8 years?

Purpose of these devices

When a dangerous proportion of hazardous substances is concentrated in the room, the device immediately alerts about this. Sound and light signals are used. The gas supply is blocked.

The installation of this device will protect the residents of the apartment from the accumulation of gas in the room and will contribute to the prompt elimination of the leak. If the device has a GSM module associated with the subscriber number, then it can send a signal to the telephone.

And today, the device is often called a household gas detector - a carbon monoxide leak sensor.

Template instruments can determine the concentration of the following types of gas:

The first type is the most dangerous. If it leaks in a closed room, there is a mortal threat.

There is methane in the main gas pipeline. With its large accumulation, there is a high risk of explosion or fire.

Propane is the main component of the liquefied composition, which is larger than air in mass. And even with an open flame, gas concentration is possible at the bottom of the room, closer to the floor.

The apartments are usually supplied with a composition of propane, methane, hydrogen sulfide, carbon dioxide and water vapor. Also, special odorants are mixed for smell. Although the main component is still methane. Its proportion: 70-98%.

A city gas leak detector can detect all of these components. And most often it is mounted near places where there is a risk of leakage (stoves, boilers, columns, etc.)

Gas detector operation

Metrological verification of the gas content sensor is carried out once a year, and also after replacing the sensors.Verification is performed by a specialized organization that has the appropriate permission to carry out such work.

Test - a cylinder with a calibration gas mixture for testing and checking the operation of a gas alarm. Designed for 70 tests.

Once every six months, the operation of the signaling device is checked from a test gas mixture containing a certain percentage of the test gas. It is forbidden to test the device with, for example, gas from lighters, because. this can lead to failure of the sensing element.

The "TEST" button is designed to test the light and sound detectors, as well as to test the operation of the gas shut-off valve.

Within the period specified in the factory documentation, it is necessary to replace the sensor in the device - a sensor sensitive to gas. After replacing the sensor, the alarm threshold is adjusted and the instrument is subjected to metrological verification. The work of replacing the sensor should be entrusted to a specialized organization.

Popular Models

Today it is easy to buy such devices. Their range is decent. The following image shows some well-sold models

The gas detector "Guardian" is also in great demand. It has various modifications. For example, TD 0371. His photo:

1. Sensitivity to such types of gas as: natural, liquefied and carbon monoxide.
2. Operation within 20 sec.
3. It has a powerful sound siren.
4. His work is built from the network. Therefore, you do not need to constantly change the batteries.
5. Moisture resistance - 95%.
6. Temperature resistance - up to 50 degrees.

This is the best option for installation in the kitchen. It can easily cope with various fumes and temperature changes.

According to the instructions, the Strazh TD 0371 gas detector must be mounted on a flat surface next to the power source. For this, two screws are used.

It can be connected to alarm buttons (security or fire). Can be used as a separate alarm.

Characteristics and parameters of the device:

1. Types of material: impact-resistant plastic, metal.
2. Weight - 260 grams.
3. Electricity consumption is less than 2 V.
4. The sound signal parameter is 70 dB / m.
5. Functional temperature range: 10 - 55 degrees.
6. Dimensions: 11 x 7 x 4 cm.
7. The device is triggered at gas proportions of 10%LEL.
8. Types of signal: sound and flashing.

Another famous modification of the "Guard" for the apartment is UM-005.

The model constantly monitors the content of CO and CH4 in the air. If the proportions of the first exceed 0.005%, and the second - 0.5%, the device immediately notifies about this with a sound signal by light diodes.

It is possible to connect an external battery - 12 V.

Who and why requires the installation of sensors?

First of all, the installation of gas leakage sensors is necessary in order to reduce the number of explosions, fires and other accidents. And, of course, to reduce the number of victims.

It is for this reason that the mandatory installation of these control devices was submitted to the State Duma at the beginning of this year. Justifying the presence of modern technologies in this area, the authors of the bill demand to develop and connect a gas control system everywhere, which will automatically notify and shut off the gas supply in case of emergency.

The bill was supposed to amend the articles of the Housing Code.

By the way, the solution to the problem of installing such systems should be provided at the expense of the capital repair fund, the scope of which includes:

• elevator repair;
• repair of cellars and roofs;
• repair and maintenance of normal functioning of house engineering systems.

The developers of the bill suggest that the sensors should be installed in basements with gas boilers and in kitchens.

As a result, the Housing Code was not changed, but special Rules were developed and approved that regulate the design of gas consumption systems in residential buildings. These rules are abbreviated as SP 402.1325800.2018 and have come into force since June 2019.

In accordance with chapter eight of the rules, security must be carried out in accordance with the requirements specified in SP 4.13130.2013 and SP 7.13130.2013.

Installing a gas leak sensor is a necessary measure, which should subsequently prevent the possibility of tragic consequences from accidents

In the same section, cases of mandatory installation of gas sensors are indicated:

• in blocked houses;
• regardless of the installation location with a gas equipment power of more than 50 kW;
• in boiler rooms, which are located on the basement floors and in the basements;
• in apartment buildings;
• in boiler rooms located in apartment buildings and intended for built-in or attached public premises;
• when placing gas-using equipment in the rooms of apartments.

For understanding, a definition of gas-using equipment should be given - these are systems in which gas is used as fuel.This applies to gas boilers, gas water heaters, stoves and other things.

However, based on point 4, we can conclude that it is necessary to use gas leakage sensors in apartment buildings.

Modern technologies, through the use of multifunctional microcircuits, make it possible not only to make gas leak sensors miniature, but also add new functions, from a standard sound alarm to an alert on the owner’s mobile phone or the emergency service of the city

Thus, starting from June 2019, when designing new houses, gas sensors must be used without fail.

Device and operation

The sensor is a compact device placed in the room where gas-consuming devices are located in order to ensure safety during their operation.

Given the design features, the following actions of the sensor are possible when triggered:

• giving a light or sound signal;
• notification by means of signaling (wired and wireless mode of operation) of special emergency services or homeowners;
• blocking the gas line, if there is an appropriate mechanism with a shut-off valve;
• the inclusion of forced exhaust, renewing the air in the room.

Scheme and design of the signaling device

In general, analyzers are equipped with the following components:

• primary converter - perceiving and determining the level of gas content in the air environment of the room;
• measuring module - a device that receives information from the conversion unit and compares the information with the allowed parameters;
• an actuator - an electromagnetic type valve that cuts off the flow of gas fuel;
• power source - built-in battery, accumulator or providing connection to a stationary power supply.

If the air content rises beyond the allowable limits, the parameters of the sensing element are changed and an alarm is given.

Service Features

To ensure the normal service of sensors, owners need to:

1. Remove dust from the device monthly with a vacuum cleaner, wipe the surface with a damp cloth;
2. Regularly check the operation of sensitive elements by bringing a gas lighter to the device for a short period of time and opening its valve, without ignition;
3. Periodically design the shut-off valve fittings, when installing the appropriate device.

In most cases, the product is calibrated by the manufacturer, so the user does not need to configure the analyzer during installation and connection.

The system of automatic control and protection against gas pollution and gas leakage in a house, apartment

Dangerous properties of gas fuel:

• the ability of gas to form flammable and explosive mixtures with air;
• suffocating power of the gas.

The components of gas fuel do not have a strong toxicological effect on the human body, but at concentrations that reduce the volume fraction of oxygen in the inhaled air to less than 16%, they cause suffocation.

During the combustion of gas, reactions occur in which harmful substances are formed, as well as products of incomplete combustion.

Carbon monoxide (carbon monoxide, CO) - is formed as a result of incomplete combustion of fuel. A gas boiler or water heater can become a source of carbon monoxide if there is a malfunction in the combustion air supply and flue gas removal path (insufficient draft in the chimney).

Carbon monoxide has a highly directed mechanism of action on the human body up to death. In addition, the gas is colorless, tasteless and odorless, which increases the risk of poisoning. Signs of poisoning: headache and dizziness; there is tinnitus, shortness of breath, palpitations, flickering before the eyes, redness of the face, general weakness, nausea, sometimes vomiting; in severe cases, convulsions, loss of consciousness, coma. Air concentrations greater than 0.1% result in death within one hour. Experiments on young rats have shown that a concentration of CO in the air of 0.02% slows down their growth and reduces activity compared to the control group.

Gas alarm - gas leak sensor, is it necessary to install

Since 2016, building regulations (clause 6.5.7 of SP 60.13330.2016) require the installation of gas alarms for methane and carbon monoxide in the premises of new residential buildings and apartments in which gas boilers, water heaters, stoves and other gas equipment are located.

For buildings that have already been built, this requirement can be seen as a very useful recommendation.

The methane gas detector serves as a sensor for the leakage of domestic natural gas from gas equipment. The carbon monoxide alarm is triggered in case of malfunctions in the chimney system and the ingress of flue gases into the room.

Gas sensors should be triggered when the gas concentration in the room reaches 10% of natural gas LEL and CO content in the air is more than 20 mg/m3.

Gas alarms must control a quick-acting shut-off (cut-off) valve installed at the gas inlet to the room and shutting off the gas supply by a signal from the gas contamination sensor.

The signaling device must be equipped with a built-in system for emitting a light and sound signal when triggered, and / or include an autonomous signaling unit - a detector.

The installation of signaling devices allows you to timely notice a gas leak and disturbances in the operation of the smoke exhaust path of the boiler, to prevent a fire, explosion, and poisoning of people in the house.

NKPRP and VKPRP - this is the lower (upper) concentration limit of flame propagation - the minimum (maximum) concentration of a combustible substance (gas, vapors of a combustible liquid) in a homogeneous mixture with an oxidizing agent (air, etc.) at which flame propagation through the mixture is possible at any distance from source of ignition (open external flame, spark discharge).

If the fuel concentration The mixture of substances in the mixture is less than the lower limit of flame propagation, such a mixture cannot burn and explode, since the heat released near the ignition source is not enough to heat the mixture to the ignition temperature.

If the concentration of a combustible substance in the mixture is between the lower and upper limits of flame propagation, the ignited mixture ignites and burns both near the ignition source and when it is removed. This mixture is explosive.

If the concentration of a combustible substance in the mixture exceeds the upper limit of flame propagation, then the amount of oxidizing agent in the mixture is insufficient for complete combustion of the combustible substance.

The range of concentration values ​​between NKPRP and VKPRP in the "combustible gas - oxidizer" system, corresponding to the ability of the mixture to ignite, forms an ignitable region.

Gas detector for LPG

The building regulations do not contain mandatory requirements for the installation of gas alarms in rooms when using liquefied gas. But liquefied gas alarms are commercially available and installing them will undoubtedly reduce the risks for you and your loved ones.

Ordinance on the installation of gas sensors

In addition, they impose a valve that will shut off the gas in the event of a leak.

Only the cost of installation with a valve rises to almost 5 thousand!

I decided to call on the phone in the "paper" and find out what and how. Judging by the fact that it is very difficult to get through to them, many even “pecked” at it.

The operator said that by the end of this week the installation was scheduled and it would be possible to install the signaling device only next week.Housing and Utilities News Collection of fees for overhaul reached 96% Deputy Ladykova for housing and communal services will meet with residents of Cheboksary on April 19 Hot water and heating will be turned off tomorrow in the north-western district of Cheboksary Hot water and heating will be turned off in Novocheboksarsk April 17-19 Top Stories Police are looking for a woman suspected of stealing money Respublika gives metal detectors to the police from a pharmacy visitor and buys them again This has never happened before: Stravinsky's landmark ballets in Cheboksary On April 21, the center of Cheboksary will be closed due to a bike ride Eight Cheboksary roads began to be repaired Active participants | Subject subscription | Print version | Connections • Statistik Nov 24 2020, 12:31 pm Sent #1 Advanced Posts: 154From: Cheby In many houses in the NWR with individual heating, apartments are bypassed and offer residents allegedly FREE installation of gas alarms.