Distance from gas equipment to electrical wiring: technical standards and rules

What rules govern

The distance from the outlet to the pipeline, from electrical cables to gas pipes is regulated by a group of regulatory legal acts of the Ministry of Energy - PUE - the rules for the installation of electrical installations.They clearly describe the requirements for heating systems, gas pipelines, their location in relation to electrical communications.

All parameters for the location of electrical appliances, wires, sockets in relation to gas and heating pipes must be indicated in the design of the room. They must be prescribed when drawing up a plan for a kitchen or other room. Control over compliance is assigned to employees of gas offices. They fix the violation and issue an order to eliminate the shortcomings.

But in any case, each of us must understand that the safety of housing, the health and life of its inhabitants, the safe operation of equipment for a long time depends on the competent location of all communications in the apartment.

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The distance from the house to the object outside the fence

When deciding on the placement of a house on a site, they also take into account the distance of the future building to power lines, gas pipelines, railways and cemeteries. This will protect households from traffic noise and fumes from burial sites, avoid flooding and subsidence of a private building located on excessively wet soil.

To power lines

To protect the population from electric shock due to accidental deformation of wires, security zones are established on both sides of the power line. Within these areas, housing construction, the construction of summer cottages and gardening associations are prohibited. If a house is still within the power line, it is not demolished, but a ban is imposed on reconstruction and capital construction.

The minimum distance from the house to the power line depends on its voltage

Compliance with the security zones of power lines also ensures the safety of the section of the electrical network from fluctuations that occur during the construction of the house.The safe distance from the fence to power lines is determined based on the voltage level and is:

• 35 kV - 15 m;
• 110 kV - 20 m;
• 220 kV - 25 m;
• 500 kV - 30 m;
• 750 kV - 40 m;
• 1150 kV - 55 m.

To the reservoir

When dreaming of a house near a river or a pond, you need to determine whether the acquired land is included in the water protection zone - land adjacent to a water body with special legal protection. The establishment of a special regime is aimed at preventing pollution, silting and salinization of the soil, preserving the wealth of waters and maintaining the natural biocenosis.

The minimum distance from the house to the river depends on the type of reservoir

The construction of a house near a reservoir also carries the risk of its destruction due to placement on softened soil. When laying the foundation, the width of the water protection zone of the river or sea is taken into account. This area is determined by the length of the reservoir and is:

• 10 km - 50 m;
• up to 50 km - 100 m;
• over 50 km - 200 m;
• for the sea - more than 500 m.

To the gas pipe

If an external gas pipeline is located on the site, the distance between it and the house must be at least 2 m. The security distance for underground pipes is determined based on the pressure of the gas supply. Within settlements, as a rule, the pressure in the gas pipeline does not exceed 0.005 MPa. In this case, the foundation is laid at a distance not closer than 2 m from the gas pipe.

In the village, a distance of 2 m is sufficient to a low-pressure gas pipe

Up the road

In different settlements, the distance between the fence and the road varies. In small towns, as a rule, this figure should be at least 3 m. If the local administration allowed to deviate from the standards, it is still better to build a fence away from the passage.This will not only protect residents, but also facilitate access to the site.

Better to stay away from the dust and smells of the road: at least five meters from the fence

Speaking about the distance between the fence and the road, the concepts of "road" and "carriageway" are separated. The first is called a canvas with a pedestrian zone and a roadside, the optimal distance to which is about 3 m. Under the second, a section for the movement of vehicles is considered. If the land plot is located near highways, the distance to the fence should be at least 5 m.

To the cemetery

The standard distance from a cemetery with an area of ​​more than 20 hectares to a residential building is at least 500 m. If the site is located in a village near a small cemetery, the dwelling should be located at a distance of at least 300 m from it. the distance to the dwelling is 50 m.

The minimum distance to the cemetery is determined by its size

To the railroad

The roar and smell from the railway will not please anyone: we are building a house no closer than 100 m

To protect site owners from train noise, the distance from the private sector to the railway should exceed 100 m. but no closer than 50 m.

We hope that the above recommendations will help you make the right choice of placing a house on your own site. In any case, it is better to make sure that it is correct by discussing your plans with the local administration and neighbors. Author of the text Miroshnikov A.P.

Requirements for the use of RCD

Requirements for the use of RCDs for the purposes of electrical safety are regulated by the PUE, chapters 1.7, 6.1, 7.1. The tripping current of an RCD installed for electrical safety purposes should not exceed 30 mA (use RCDs with a tripping current of 10 mA and 30 mA).

The rating of the RCD for the tripping current is selected in accordance with the requirements of clause 7.1.83 of the PUE. The total leakage current of the network in normal mode should not exceed 1/3 of the rated current of the RCD. Since there are no data on leakage currents, the calculation of leakage currents is carried out in accordance with the requirements of this paragraph. When calculating, the leakage current of the electrical receiver is 0.4 mA for every 1 A of load current, and the network leakage current is 10 μA for each meter of cable length.

Requirements for the installation of RCDs in order to protect against fire are regulated by the following documents:

1. PUE, clause 7.1.84 “To increase the level of protection against fire in case of short circuits to grounded parts, when the current is insufficient to operate the overcurrent protection, at the entrance to an apartment, an individual house, etc. it is recommended to install an RCD with a tripping current of up to 300 mA”;
2. Federal Law of July 22, 2008 N 123-FZ "Technical Regulations on Fire Safety Requirements". Article 82, part 4 “The power supply lines of the premises of buildings and structures must have protective shutdown devices that prevent the occurrence of a fire. Installation rules and parameters of residual current devices must take into account the fire safety requirements established in accordance with this Federal Law.

In accordance with these requirements, an RCD with a trip current of 100 mA or 300 mA is installed at the entrance to the apartment.Such an RCD is called fire-fighting.

If the calculation shows that the total leakage current of the apartment shield does not exceed 10 mA, then you can save money and you can install an RCD with a trip current of 30 mA at the entrance to the apartment. This RCD will serve as a "fire" RCD and RCD used for electrical safety purposes.

Otherwise, a “fire-fighting” RCD with a trip current of 100 mA or 300 mA is installed at the entrance to the apartment, and an RCD with a trip current of 10 mA or 30 mA is installed on the outgoing lines (where the installation of an RCD is required for electrical safety).

How far should the socket be from the gas boiler?

Now separately about the distance at which the outlet should be located. The distance from the gas boiler to the socket supplying its control system must be at least 500 mm. (0.5 m.). This requirement follows from PUE-7 (rules for electrical installations), this is indicated in clause 7.1.50. You can find a distance of 40 cm in PUE-6, but we recommend that you adhere to the requirements of PES-7.

Coordination and design

Design and coordination before installation of a gas boiler and a boiler room is required without fail. In this case, the procedure will look like this:

• the owner of the house submits an application to the organization (Oblgaz, Gorgaz) indicating the amount of expected gas consumption;

• the organization issues to him the relevant technical conditions or a reasoned refusal to issue them in writing;

• a project is being made to connect a gas boiler house, such a project has the right to do an organization that has the appropriate license;

• the project is approved;

• it is installed and connected by an organization entitled to carry out such work.

Unauthorized connection of a gas boiler is prohibited by law.

Rules for placing sockets in relation to the gas pipe

Gas pipes should also be located at a distance from an electrical outlet, switch, wires and other electrical appliances. According to the established "Rules for the Design of Gas Consumption Systems", which entered into force on June 06, 2019, in SP 402.1325800.2018, you can find the point of requirements for the distance from gas pipes to power supply networks.

Such distances must be at least 400 mm horizontally and at least 100 mm vertically. This is indicated by Clause 6.15.

At the same time, the placement of the gas pipe from the socket or switch must still be at least 500 mm away.

Liability for non-compliance

Based on the current legislation, punishment is provided for citizens who arbitrarily or with violations connect gas equipment and a gas boiler house. Code of Administrative Offenses of the Russian Federation Article 9.4 provides for a fine, and in some situations, disconnection of the subscriber from the gas supply until the violation is eliminated. Although the monetary fines are not so great, compliance with the rules is still mandatory.

Owners of private houses often arbitrarily connect gas equipment either on their own or with the help of unskilled specialists. This may also be fraught with monetary fines and disconnecting the subscriber from gas consumption (CAO RF Article 7.19).

In a situation where violations lead to damage to property or damage to health, criminal liability can also be applied, up to and including imprisonment.

Photo in the article:,,,

It's time to replace the gas meter

When is the time to change the meter?

Each meter has a verification period. Usually this time is from 8 to 10 years. The first verification takes place at the time of installation of the meter. Thus, the calibration time falls exactly in the middle of the instrument's service life.

If the meter is serviceable and correctly measures the readings, then it is left in operation for another period. And if the readings are not accurate, then gas meter to be replaced.

You were told to install a meter of a certain brand, what to do?

No one can oblige you to install a gas meter of a particular brand. The service organization is obliged to accept any metering device certified in the territory of the Russian Federation from you. The main thing is that the technical requirements are met.

What technical requirements should be considered when choosing a gas meter?

1. Counter volume. Usually this parameter appears directly in the name of the counter after the letter “G”. For example G4, G6, G10. The larger the volume, the greater the throughput.
2. Thermal correction. The meter can be installed both indoors and outdoors. Outdoor temperature can vary during the year by 80-90 degrees. Therefore, it is required to install a thermal corrector in street meters to correctly account for the consumed gas. This parameter also usually appears in the name of the meter and is denoted by the letter “T”. G4 - without a thermal corrector, G4T - with a thermal corrector.
3. The distance between the centers of the gas supply pipes. This parameter can be measured using a ruler. Standard distances between the centers of pipes for domestic gas meters: G4 - 110 mm G6 - 200 or 250 mm G10 - 250 or 250 mm
4. Gas inlet direction. Stand facing the meter display. If the gas inlet pipe is on your left, then the gas supply is from left to right. If on the right hand, then from right to left.
5. Thread diameter. Pipes through which gas flows must be hermetically fixed in the meter. And if the pipe diameter is, say, 40 mm, and the thread on the counter is 32 mm, then of course they will not converge at the junction. But unlike the problem of non-standard distance between pipes, the problem with threads is quite simply solved with an adapter nozzle.

Which counter brand should I choose?

There is no definite answer here. Call us at 8-962-957-32-80, we will advise you and help you with the choice.

Types and levels

The population is supplied with high-calorific gas, the most optimal option for domestic use. The level of safety of fuel transported through main pipes is considered higher than its movement and use in cylinders. Laying pipes for this purpose depends on the characteristics of the relief and the required operation and is divided into 3 types:

1. Overground communications are the least problematic type of installation, which is also used in suburban areas due to the lack of the need for expensive work both during the assembly process and, if necessary, repairs. It is made only of steel (as regulated in SNiP), but no special strictness is prescribed in the distance to construction. The only requirement is a two-sided security zone around the pipe of at least 2 m.
2. Underground pipelines, recognized as the safest way to lay, with a minimum likelihood of damage from external causes. They can be made of polymer or steel pipes, but here the distance is normalized depending on several components.
3. Internal networks are located inside the building, they must be left in the public domain, and the assembly should be made only from steel and copper.There are also standards for internal networks - they are determined by the object of consumption and its installation, while taking into account everything that may pose a potential threat of fire or explosion, up to the chimney.

Underground gas pipeline

For underground structures, the distance at which a residential building can be placed during planning and development is dictated by the diameter of the pipe and the pressure under which gas is supplied.

The higher the transport pressure, the greater the potential hazard to residential buildings. That is why the distance from the gas pipe to the house must be strictly observed.

To obtain a permit, calculations are made by types of communications:

• low is considered to be up to 0.05 kgf / cm2 - served for residential, specialized and public buildings;
• a gas pipeline with medium pressure (from 0.05 kgf / cm2 to 3.0 kgf / cm2) is needed in urban boiler houses or in the main if the city is large;
• high pressure can be used in industrial facilities or in a separate project, used quite rarely.

The local gas distribution station has the necessary data on the placement of the pipe in relation to the level of soil freezing, its diameter and pressure. That is why it is necessary to apply there for permission and information. If we are talking about a small settlement where there is no centralized supply and main gas supply, such an appeal is not required.

Connecting a gas boiler to a chimney

The diameter of the chimney must be equal to or greater than the diameter of the outlet in the device.

In most cases, the diameter of the chimney depends on the power:

• 100 kW - 230 mm;
• 80 kW - 220 mm;
• 60 kW - 190 mm;
• 40 kW - 170 mm;
• 30 kW - 130 mm;
• 24 kW - 120 mm.

Ordinary chimneys are brought up, 0.5 m above the ridge of the house. They are arranged both inside the wall of the house, and inside the house or behind its wall. No more than 3 bends are allowed on the pipe. The first section of the pipe that connects the boiler to the main chimney must be no larger than 25 cm. The pipe must have a closable opening for cleaning. For boilers with ordinary chimneys and an open combustion chamber, a large air supply is required. It can be provided either with an open window or a separate supply pipe.

The chimney must be made of sheet metal or other material that is resistant to acids. Do not connect the boiler with a corrugation to the main chimney. A brick chimney cannot be used either.

The coaxial chimney must be mounted horizontally and led into the wall. This type of chimney is a pipe in a pipe. It should move away from the wall by at least 0.5 m. If the boiler is ordinary, then the chimney should have a slight slope towards the street. If the device is condensing, then the slope should be towards the device itself. Thus, the condensate will be able to drain into a special pipe, which will need to be diverted to the sewer. The maximum length of coaxial chimneys is 5 m.

Design standards for gas-fired rooftop boilers

The design of KKg is carried out by companies that have a license for the corresponding type of work. Before approval, the project must be coordinated by architectural supervision, SES, fire inspection with operating organizations that have drawn up technical specifications in the design process.

The KKg floor is made with waterproofing capable of providing a flood of water up to 100 mm high.Window openings should provide natural light, and therefore they are set from a ratio of at least 0.05 m2 per 1 m3 of the total volume of the heat supply facility.

The scheme of piping of intra-house heating and ventilation networks is carried out according to a dependent scheme, through a mixing unit for the release of thermal energy, and the DHW system is carried out according to a closed scheme through a heat exchanger.

Heating systems are divided in front, with an individual unit for commercial accounting of thermal energy. A chemical water treatment system must be installed in the boiler room to supply soft water to the boiler and the heating circuit. These requirements are met to prevent scale formation on heating surfaces.

Which boilers to use

As sources of thermal energy in KKg, automated hot water boilers are used, capable of heating water with a heat carrier up to 95 C and pressure up to 1.0 MPa.

For example, a modular boiler house ARGUS TM-1000.00.PR.10 with a power of 1050 kW is equipped with:

1. Gas boiler PROTHERM 120 SOO with a capacity of 105 kW and an efficiency of -90%, 10 units.
2. Pump group with centrifugal pump WILO HWJ 202 EM 20L.
3. Expansion membrane tank REFLEX N 200/6.
4. Automation and regulation system.
5. Group of instrumentation and primary sensors.
6. Block of chemical water treatment.
7. Smoke ventilation system.

How to supply gas

The gas pressure in the gas pipeline for KKg should not be more than 5 kPa.

External wiring of the gas pipeline to the boilers is carried out in places that are convenient for subsequent maintenance and exclude the possibility of its rupture. Connection to this gas pipeline of other consumers is not allowed.

The gas pipeline must not pass through ventilation systems, windows and doors.The internal gas pipeline in the boiler room is laid openly, while there should be free access for monitoring and technical inspection of safety and automation devices.

In addition, a safety shut-off valve (PZK) with an electromagnetic actuator is installed in the security system on the gas line, which cuts off the gas in an emergency.

Roof power supply

The electrical equipment of KKg must comply with the PUE, as an object of the second category of power supply reliability.

The power supply scheme should provide for the possibility of turning on backup electrical equipment when the main device, such as a pump, fan and smoke exhauster, exits.

Safety automation should ensure that the gas supply to the boiler is turned off in the event of an emergency: high gas pressure, separation of the flame from the burner, gas contamination in the boiler room, low draft in the furnace, high temperature and coolant pressure.

Fire safety

There are a number of important security fire requirements for KKg in a multi-storey building:

1. The location of the boiler room directly above the apartments is prohibited.
2. The boiler facility is assigned a categorization of class "G" for explosion and fire hazard.
3. The height of the ceilings of the object must be higher than 2.65 m.
4. Door width over 0.8m.
5. Fire barriers must be installed in the building.
6. The room must have a separate emergency exit.
7. The facility is equipped with sound and light fire alarms and emergency fire extinguishing systems.

Characteristics of the kitchen for the installation of a gas boiler

The power of most gas boilers rarely exceeds 30 kW. This makes it possible to install them in the kitchen of a house or apartment.This is also done by agreement of the controlling organizations. Many of the above rules apply for this case, but given the specifics of the premises, there are additional ones.

To install a gas boiler in the kitchen, you must adhere to the following rules:

These rules are not "ultimate truth". The main document for preparing the boiler room for the installation of gas equipment will be the Technical Conditions.

Rules for the placement of pipes and sockets in relation to the gas pipe

Often the cause of emergencies and emergencies is a violation of the simplest safety rules for installing electrical wiring, one of which is the norms for the distance of electrical wiring relative to pipelines.

The set of rules for the installation of electrical installations (PES) developed by specialists of the Ministry of Energy allows you to fully answer the question: at what distance from the gas pipe can you lay a cable and install an electrical outlet.

The distance from the electrical outlet to the gas pipe - what regulates the rules

The rules for the safe installation of electrical wiring are regulated by the main regulatory document - PUE-6, they apply to installed and operated electrical installations with AC voltage up to 750 kW. The rules are developed taking into account the implementation of planned and preventive tests, repairs of electrical installations, over which technical supervision is established.

Distance from the gas pipeline to the outlet

The distance from the outlet to the gas pipe is established by the regulation of the Ministry of Energy PUE-7 paragraph 7.1.50, which regulates the clearance between electrical switches, electrical outlets and the gas pipe is not less than 500 mm.

Rice. 3 Selection criteria and methods for laying open electrical wires and cables

Rules for placing pipes and electrical cables

When installing electrical networks, internal and external wiring is distinguished, in the first version it is placed in the structure (strobes) or niches of building structures and is separated from the surface by fireproof materials - concrete, plaster, cement-sand mortar, alabaster, gypsum binder. The thickness of the insulating layer of hidden wiring from non-combustible building materials is regulated by the PES only for the cases of nearby products from combustible components, according to the rules, the insulator layer should not be less than 100 mm.

PES regulate in more detail the norms of open wiring distances to pipes through which explosive gases circulate. As required by regulatory documents (PUE-6 clause 2.1.56), the allowable distance in the light between electrical wires without protection or in protective insulation and pipes with neutral substances must be at least 50 mm. If explosive gas passes through the line, the clearance is made more than 100 mm .

If the distance from the electric cables to the pipes is less than 250 mm, it is obligatory to protect the wiring from mechanical influences for a length of at least 250 mm on both sides of the gas pipe.

When laying an electric cable and pipes with a neutral working substance in parallel, the gap between them is made at least 100 mm. If the electric line runs next to the gas pipeline, the distance between the gas pipe and the wire must be more than 400 mm.

If the design of the premises includes the intersection of laid hot pipelines with electrical wiring, the latter must have a suitable heat-resistant insulation design or have external protection against high temperatures.

Rice. 4 Wiring installation methods depending on the type of premises

When carrying out repair work in an apartment, a situation often arises when you need to move an electrical outlet in the kitchen or lay new wiring. In this case, electrical installation work must be carried out in accordance with generally accepted requirements and rules (PES), developed by specialists, taking into account repeatedly tested safety standards.

Electrical connection of the gas appliance

Modern gas boilers exist with 2 options for connecting to the mains: a three-core insulated cable and with a plug for connecting to a socket. In both cases, you should follow the rule: the gas device is connected through an individual circuit breaker to the shield and you will definitely need to take care of grounding. It is recommended to use voltage stabilizers as well as backup power supplies to prepare for a power outage.

A cut-off switch must be installed near the boiler so that it can be switched off quickly and easily. Do not ground the device to a heating pipe or gas pipeline. In order to ensure high-quality grounding, it is necessary to equip a ground loop or point grounding.

Connecting a gas boiler to a chimney

The diameter of the chimney must be equal to or greater than the diameter of the outlet in the device.

In most cases, the diameter of the chimney depends on the power:

• 100 kW - 230 mm;
• 80 kW - 220 mm;
• 60 kW - 190 mm;
• 40 kW - 170 mm;
• 30 kW - 130 mm;
• 24 kW - 120 mm.

Ordinary chimneys are brought up, 0.5 m above the ridge of the house. They are arranged both inside the wall of the house, and inside the house or behind its wall. No more than 3 bends are allowed on the pipe. The first section of the pipe that connects the boiler to the main chimney must be no larger than 25 cm. The pipe must have a closable opening for cleaning. For boilers with ordinary chimneys and an open combustion chamber, a large air supply is required. It can be provided either with an open window or a separate supply pipe.

The chimney must be made of sheet metal or other material that is resistant to acids. Do not connect the boiler with a corrugation to the main chimney. A brick chimney cannot be used either.

The coaxial chimney must be mounted horizontally and led into the wall. This type of chimney is a pipe in a pipe. It should move away from the wall by at least 0.5 m. If the boiler is ordinary, then the chimney should have a slight slope towards the street. If the device is condensing, then the slope should be towards the device itself. Thus, the condensate will be able to drain into a special pipe, which will need to be diverted to the sewer. The maximum length of coaxial chimneys is 5 m.

Basic installation requirements

Currently, the requirements for the installation of gas equipment in apartments, cottages, residential private houses in the Russian Federation are not provided for by any regulatory legal act. When designing the location and installation of such devices, they are guided by the installation and operation instructions that come with the equipment.

Compliance with these requirements is very important, primarily because the safety of our existence depends on it, and if it is an apartment building, then the people around us. Gas explosions and fires are highly destructive in nature.

The norms under consideration can be gleaned from SNiP 2.04.08-87, which was valid until 2002. This act provides that the distance to the boiler when installing a gas stove in residential buildings and apartments should be at least 50 cm. And also the stove should be located next to the boiler, but under no circumstances under it. And you should not put a stove under the column either. At the same time, the location of gas appliances among themselves should not be at a great distance from the hood, which must be mandatory and perform its functions (be cleaned).

The hood ensures the removal of combustion products, mainly formed carbon monoxide, which is not felt by a person in any way and is fatal even in small concentrations. Accordingly, the room, in addition to the hood, should have opening windows for ventilation.

Before the pipe that delivers gas to the room, the location of other devices is not regulated. And also there is no regulation for the installation of electrical outlets in the kitchen with a stove. However, hanging sockets or other objects directly above the device is not recommended categorically, since during the use of the device a large amount of heat is generated, and objects located above it can melt, catch fire, or simply become unusable due to exposure to high temperature.

The only thing that can be placed above the stove is the electric hood receiving device, which is designed to work at high temperatures.

It is not difficult to connect gas appliances and, in particular, the stove yourself, if you follow the conditions of the operating instructions

However, before installation, it is important to turn to professionals to develop a project, if there is none, and then turn to them to carry out the work, since errors during installation and commissioning of this kind of equipment are very expensive for consumers.

Classification by gasket type

Transportation of gases is carried out through different types of gas pipelines, and the material for the manufacture of pipes, and the need for the construction of gas pipeline supports, and the distance to different objects may depend on this:

1. Underground gas pipelines are constructed from polyethylene or steel, the first type of material prevailing, which is resistant to corrosion and does not require protective measures.
2. Steel pipes are used for aboveground gas pipelines, engineering networks are designed taking into account the necessary supports, gas compressor stations, and the need for permanent repairs.
3. The construction of land highways is cheaper than the first two, but also requires expensive technical support to comply with safety rules, taking into account the safety from damage that may represent human or natural factors.
4. Underwater ones are also not cheap - the concern for the safety of work is decently costly, and design requires specific skills, taking into account the seismic situation and remoteness from transport routes.

In any case, the laying of the gas pipeline is carried out in accordance with the current legislation of the Russian Federation and the standard distance from buildings and structures to the gas pipeline. Equipment must comply not only with safety regulations, but also take into account the boundaries of zones of a certain length, environmental protection measures, land use - and it all depends on the categories.

The "Rules for the Protection of Gas Distribution Networks" define special zoning and standard distances at which it is allowed to approach various structures. The norms for the installation of gas filling stations are present in SNiP 2.07.01-89 “Urban planning. Planning and development of urban and rural settlements” and SP 42.13330.2011.

Watch the video below on this topic.