Clear distance between pipelines. Distances from building structures of heating networks or pipeline insulation shells for ductless installation to buildings, structures and utility networks. from the shell of the channelless laying

3.75. When planting in rows, the distances between trees and shrubs should be no less than those indicated in the table. 8.

Table 8

Characteristics of plantings	Minimum distances between trees and shrubs in axes, m
Trees of light-loving species
Trees of shade-tolerant species
Shrubs up to 1 m high
The same, up to 2 m
The same, more than 2 m

3.76. The distance between the border of tree plantations and cooling ponds and splash pools, counting from the coastal edge, must be at least 40 m.

3.77. The main element of landscaping areas industrial enterprises a lawn should be provided.

3.78. On the territory of the enterprise, landscaped areas should be provided for rest and gymnastic exercises for workers.

The sites should be located on the windward side in relation to buildings with industries that emit harmful emissions into the atmosphere.

The dimensions of the sites should be taken at the rate of no more than 1 sq.m per worker in the largest shift.

3.79. For enterprises with production facilities that emit aerosols, decorative ponds, fountains, and rain installations that increase the concentration of harmful substances on enterprise sites should not be provided.

3.80. Along highways and industrial roads, sidewalks should be provided in all cases, regardless of the intensity of pedestrian traffic, and along driveways and entrances - with a traffic intensity of at least 100 people. per shift.

3.81. Sidewalks on the site of an enterprise or the territory of an industrial hub must be located no closer than 3.75 m from the nearest normal gauge railway track. Reducing this distance (but not less than the dimensions of the approaching buildings) is allowed when installing railings enclosing the sidewalk.

The distance from the axis of the railway track along which hot goods are transported to the sidewalks must be at least 5 m.

Sidewalks along buildings should be placed:

a) with organized drainage of water from the roofs of buildings - close to the building line with an increase in the width of the sidewalk by 0.5 m in this case (against that provided for by the standards of clause 3.82);

b) in case of unorganized drainage of water from roofs - at least 1.5 m from the building line.

3.82*. The width of the sidewalk should be taken as a multiple of the traffic lane with a width of 0.75 m. The number of traffic lanes on the sidewalk should be set depending on the number of workers employed in the largest shift in the building (or group of buildings) to which the sidewalk leads, based on 750 people. per shift for one lane. The minimum width of the sidewalk must be at least 1.5 m.

When the intensity of pedestrian traffic is less than 100 person-hours in both directions, sidewalks with a width of 1 m are allowed, and when moving along them for disabled people using wheelchairs, sidewalks with a width of 1.2 m are allowed.

The slopes of sidewalks intended for the possible passage of disabled people using wheelchairs should not exceed: longitudinal - 5%, transverse - 1% At the intersection of such sidewalks with the roadway of the enterprise's roads, the height of the side stones should not exceed 4 cm.

3.83. When placing sidewalks next to or on a common roadbed with a highway, they must be separated from the road by a dividing strip at least 0.8 m wide. The location of sidewalks close to the carriageway of a highway is allowed only in conditions of reconstruction of the enterprise. When the sidewalk adjoins the roadway, the sidewalk must be at the level of the top of the side stone, but not less than 15 cm above the roadway.

Note. For the Northern construction-climatic zone, sidewalks and

bicycle paths along highways should be designed to

a common roadbed with it, separating them from the roadway with a lawn of at least

1 m, without installing side stones, but with a through fence

between the lawn and the sidewalk.

3.84. When reconstructing enterprises located in crowded areas, it is allowed, with appropriate justification, to increase the width of highways due to planting strips separating them from sidewalks, and in their absence, due to sidewalks with the relocation of the latter.

3.85*. On the sites of enterprises and the territories of industrial hubs, the intersection of pedestrian traffic with railway tracks in places where there is a mass passage of workers is, as a rule, not allowed. When justifying the need for the construction of these intersections, crossings at one level should be equipped with traffic lights and audible alarms, and also ensure visibility no less than that provided for in the chapter of SNiP on highway design.

Intersections in different levels(mainly in tunnels) should be provided in the following cases: intersections of station tracks, including exhaust tracks; transportation along the routes of liquid metals and slag; the production of shunting work on intersecting routes and the impossibility of stopping it during the mass passage of people; standing on the wagon tracks, heavy traffic (more than 50 deliveries per day in both directions).

When disabled people using wheelchairs move around the enterprise, pedestrian tunnels must be equipped with ramps.

Intersections of highways with pedestrian paths should be designed in accordance with the chapter of SNiP on the planning and development of cities, towns and rural settlements.

3.86. The fencing of enterprise sites should be provided in accordance with the “Guidelines for the design of fencing of sites and areas of enterprises, buildings and structures.”

4. LOCATION OF ENGINEERING NETWORKS

4.1. For enterprises and industrial units it is necessary to design unified system utility networks located in technical strips, ensuring the occupation of the smallest areas of the territory and connection with buildings and structures.

4.2*. At the sites of industrial enterprises, predominantly ground and above-ground methods for placing utility networks should be provided.

In the pre-factory areas of enterprises and public centers of industrial units, underground placement of utility networks should be provided.

4.3. For networks for various purposes, it is necessary, as a rule, to provide for joint placement in common trenches, tunnels, channels, on low supports, sleepers or on overpasses in compliance with the relevant sanitary and fire safety standards and safety rules for the operation of networks.

Joint underground placement of recycling water supply pipelines, heating networks and gas pipelines with process pipelines is allowed, regardless of the coolant parameters and environmental parameters in the process pipelines.

4.4. When designing utility networks at the sites of enterprises located in special natural and climatic conditions, one should also comply with the requirements stipulated by the chapters of SNiP for the design of water supply, sewerage, gas supply and heating networks.

4.5. Placing external networks with flammable and combustible liquids and gases under buildings and structures is not permitted.

4.6. The choice of method for placing power cable lines should be provided in accordance with the requirements of the “Rules for the Construction of Electrical Installations” (RUE), approved by the USSR Ministry of Energy.

4.7. When placing heating networks, the intersection of production and auxiliary buildings of industrial enterprises is allowed.

UNDERGROUND NETWORKS

4.8. Underground networks, as a rule, should be laid outside the carriageway of roads.

On the territory of reconstructed enterprises, it is allowed to place underground networks under highways.

Notes: 1. Ventilation shafts, entrances and other duct devices and

tunnels should be located outside the roadway and in places free from

developments.

2. For channelless installation, it is allowed to place networks within

4.9. In the Northern construction-climatic zone network engineering, as a rule, should be laid together in tunnels and channels, preventing changes in the temperature regime of the soils of the foundations of nearby buildings and structures.

Note. Water supply, sewer and drainage networks should be located

in the zone of temperature influence of heating networks.

4.10. In channels and tunnels, it is allowed to place gas pipelines of flammable gases (natural, associated petroleum, artificial mixed and liquefied hydrocarbons) with a gas pressure of up to 0.6 MPa (6 kgf/sq.cm) together with other pipelines and communication cables, provided that ventilation and lighting are installed in channels and tunnels in accordance with sanitary standards.

It is not allowed to place together in the channel and tunnel: gas pipelines of flammable gases with power cables and lighting, with the exception of cables for lighting the channel or tunnel itself; pipelines of heating networks with liquefied gas pipelines, oxygen pipelines, nitrogen pipelines, cold pipelines, pipelines with flammable, volatile chemically caustic and toxic substances and with household sewage effluents; pipelines of flammable and combustible liquids with power and communication cables, with fire-fighting water supply networks and gravity sewerage; oxygen pipelines with gas pipelines of flammable gases, flammable and combustible liquids with pipelines of toxic liquids and with power cables.

Notes: 1. Co-location in common channels and

tunnels of pipelines of flammable and combustible liquids with pressure

water supply systems (except fire-fighting) and pressure sewerage systems.

2. Channels and tunnels designed to accommodate pipelines with fire,

explosive and toxic materials (liquids), must have outlets to

less than every 60 m and at its ends.

4.11*. Underground utilities should be placed parallel in a common trench; at the same time, the distances between utility networks, as well as from these networks to the foundations of buildings and structures, should be taken as minimally acceptable based on the size and placement of cameras, wells and other devices on these networks, the conditions of installation and repair of networks.

The horizontal distances (in clear distance) from the nearest underground utility networks, with the exception of gas pipelines for flammable gases, to buildings and structures should be taken no more than those indicated in the table. 9. The distances from flammable gas pipelines to buildings and structures indicated in this table are minimal.

The horizontal (clear) distances between adjacent underground utility networks when they are placed in parallel should be taken no more than those indicated in the table. 10.

4.12. When laying a cable line parallel to a high-voltage line (OHL) with a voltage of 110 kV and above, the horizontal distance (in the clear) from the cable to the outermost wire must be at least 10 m.

In the conditions of reconstruction of enterprises, the distance from cable lines to the underground parts and grounding conductors of individual overhead line supports with voltages above 1000 V is allowed to be at least 2 m, while the horizontal distance (in the clear) to the outermost wire of the overhead line is not standardized.

4.13*. When crossing utility networks, the vertical (clear) distances must be no less than:

a) between pipelines or electrical cables, communication cables and railway and tram tracks, counting from the base of the rail, or highways, counting from the top of the coating to the top of the pipe (or its case) or electrical cable - based on the strength of the network, but not less than 0 .6 m;

b) between pipelines and electrical cables placed in canals or tunnels and railways, the vertical distance, counting from the top of the canals or tunnels to the bottom of the railway rails, is 1 m, to the bottom of the ditch or other drainage structures or the base of the railway embankment roadbed- 0.5 m;

c) between pipelines and power cables with voltage up to 35 kV and communication cables - 0.5 m;

d) between power cables with voltage 110 - 220 kV and pipelines - 1 m;

e) in the conditions of reconstruction of enterprises, subject to compliance with the requirements of the PUE, the distance between cables of all voltages and pipelines may be reduced to 0.25 m;

f) between pipelines for various purposes (with the exception of sewer pipelines crossing water pipelines and pipelines for toxic and foul-smelling liquids) - 0.2 m;

g) pipelines transporting drinking water should be placed 0.4 m higher than sewer or pipelines transporting toxic and foul-smelling liquids;

h) it is allowed to place steel pipelines enclosed in cases transporting drinking water below sewer pipes, while the distance from the walls of the sewer pipes to the edge of the case must be at least 5 m in each direction in clay soils and 10 m in coarse and sandy soils , and sewer pipelines should be made of cast iron pipes;

i) utility and drinking water supply inlets with a pipe diameter of up to 150 mm may be provided below sewer lines without installing a casing, if the distance between the walls of intersecting pipes is 0.5 m;

j) when laying ductless pipelines of water heating networks of an open heating supply system or hot water supply networks, the distance from these pipelines to the sewer pipelines located below and above should be taken as 0.4 m.

4.14. When placing utility networks vertically on the sites of industrial enterprises and the territories of industrial hubs, the norms of the chapters of SNiP on the design of water supply, sewerage, gas supply, heating networks, structures of industrial enterprises, and PUE must be observed.

4.15. When crossing canals or tunnels for various purposes, gas pipelines should be placed above or below these structures in cases extending 2 m on both sides from the outer walls of the canals or tunnels. Allowed to be placed in a case underground gas pipelines pressure up to 0.6 MPa (6 kgf/sq.cm) through tunnels for various purposes.

Table 9

Horizontal distance (clear), m, from underground networks to

building foundations

foundations fencing supports,

railway track axes

tram axles

highways

foundations of overhead power transmission line supports

Network engineering

and structures

galleries, overpasses pipelines, contact network and communications

gauge 1520 mm, but not less than the depth of the trench to the bottom of the embankment and excavation

side stones, edges of the roadway, reinforced no roadside strip

the outer edge of a ditch or the bottom of an embankment

up to 1 kV and outdoor lighting

St. 1 to 35 kV

1. Water supply and pressure sewerage

2. Gravity sewerage and drains

3. Drains

4. Gas pipelines for flammable gases a) low pressure up to 0.005 MPa (0.05 kgf/sq.cm)

b) average pressure St. 0.005 (0.05) to 0.3 MPa (3 kgf/sq.cm)

c) high pressure from 0.3 (3) to 0.6 MPa (6 kgf/sq.cm)

d) high pressure over 0.6 (6) to 1.2 MPa (12 kgf/sq.cm)

5. Heat networks (from the outer wall of the channel, tunnel or shell of a ductless installation)

2 (see note 4)

6. Power cables of all voltages and communication cables

7. Channels, tunnels

* Refers only to distances from power cables. The distance from communication cables must be taken according to special standards approved by the USSR Ministry of Communications.

Notes*: Notes 1 and 2 are excluded. 3. In the Northern construction-climatic zone, the distance from the networks according to pos. 1, 2, 3 and 5 during construction with preservation of the permafrost state of the foundation soils should be taken according to thermal engineering calculations; during construction, when the foundation soils are used in a thawed state, - according to Table. 9. 4. The distance from heating networks for ductless installation to buildings and structures should be taken as for water supply. 5. It is allowed to provide for the laying of underground utility networks, with the exception of fire-fighting water supply networks and gas pipelines for flammable and toxic gases, within the foundations of supports and overpasses of pipelines, galleries, and contact networks, provided that measures are taken to exclude the possibility of damage to networks in the event of settlement of foundations, as well as damage foundations in case of an accident on these networks.

Table 10

Horizontal distance (clear), m, between

gas pipelines for flammable gases

heating networks

Network engineering

sewerage

drainage or gutters

low pressure up to 0.005 MPa (0.05 kgf/sq.cm)

average pressure St. 0.005 (0.05) to (3 kgf/sq.cm)

high pressure St. 0.3 (3) to 0.6 MPa (6 kgf/sq.cm)

high pressure St 0.6 (6) to 1.2 MPa 12kgf/sq.cm)

power cables of all voltages

communication cables

outer wall of a channel, tunnel

the shell is without- gasket

lami, tunnels

1. Water supply

(see note 2)

2. Sewerage

(see note 2)

3. Drainage and wastewater

4. Gas pipelines for flammable gases: a) low pressure up to 0.005 MPa (0.05 kgf/sq.cm)

(see note 3)

b) average pressure from 0.005 (0.05) to 0.3 MPa (3 kgf/sq.cm)

(see note 3)

c) high blood pressure St. 0.3 (3) to 0.6 MPa (6 kgf/sq.cm)

(see note 3)

d) high pressure over 0.6 (6.0) to 1.2 MPa (12 kgf/sq.cm)

(see note 3)

5. Power cables of all voltages

6. Communication cables

7. Heating networks: a) the outer wall of the channel, tunnel

b) shell of channelless gasket

8. Channels, tunnels

* In accordance with the requirements of the PUE. Notes: *Note 1 has been deleted. 2. The distances from the sewerage system to the domestic drinking water supply must be taken as follows: to the water supply system made of reinforced concrete and asbestos-cement pipes laid in clay soils - 5 m, in coarse-grained and sandy soils - 10 m; to a water supply system made of cast iron pipes with a diameter of up to 200 mm - 1.5 m, with a diameter of more than 200 mm - 3 m; to the water supply system made of plastic pipes - 1.5 m. The distance between the sewerage networks and the industrial water supply system, regardless of the material and diameter of the pipes, as well as the nomenclature and characteristics of the soil, must be at least 1.5 m. 3. When two or more gas pipelines of flammable gases are placed together in one trench, the clear distances between them should be for pipes with a diameter of: up to 300 mm - 0.4 m, more than 300 mm - 0.5 m. 4. The table shows the distances to steel gas pipelines. The placement of underground gas pipelines made of non-metallic pipes should be provided in accordance with the chapter of SNiP on the design of internal and external gas supply devices. Notes 5 - 9 have been deleted.

4.16. Intersections of pipelines with railway and tram tracks, as well as with roads, should be provided, as a rule, at an angle of 90 degrees. In some cases, with appropriate justification, it is possible to reduce the intersection angle to 45°.

The distance from gas pipelines and heating networks to the beginning of the points, the tail of the crosspieces and the points of connection to the rails, suction cables should be taken at least 3 m for tram tracks and 10 m for railways.

4.17. The intersection of cable lines laid directly in the ground with the tracks of electrified rail transport should be provided at an angle of 75 - 90° to the axis of the track. The intersection must be at a distance of at least 10 m for railways and at least 3 m for tram tracks from the beginning of the points, the tail of the crosses and the points where the suction cables are connected to the rails.

In the case of a transition of a cable line into an overhead line, the cable must exit to the surface at a distance of at least 3.5 m from the base of the embankment or from the edge of the railway or highway bed.

GROUND NETWORKS

4.18. When placing networks on land, it is necessary to provide for their protection from mechanical damage and adverse atmospheric influences.

Ground nets should be placed on sleepers laid in open trays, at elevations below the planning elevations of the sites (territories). Other types of above-ground placement of networks are allowed (in channels and tunnels laid on the surface of the territory or on a continuous bedding, in channels and tunnels of a semi-buried type, in open trenches, etc.)

4.19. Pipelines for flammable gases, toxic products, pipelines through which acids and alkalis are transported, as well as domestic sewerage pipelines are not allowed to be placed in open trenches and trays.

4.20. Ground networks are not allowed to be placed within the strip reserved for laying underground networks in trenches and channels that require periodic access to them during operation.

OVERGROUND NETWORKS

4.21. Aboveground utility networks should be placed on supports, overpasses, in galleries or on the walls of buildings and structures.

4.22. The intersection of cable overpasses and galleries with overhead power lines, intra-factory railways and roads, cable cars, overhead communication and radio lines and pipelines should be carried out at an angle of at least 30°.

4.23*. The placement of overhead networks is not allowed:

a) transit on-site pipelines with flammable and combustible liquids and gases along overpasses, free-standing columns and supports made of combustible materials, as well as along the walls and roofs of buildings with the exception of buildings of I, II, IIIa degrees of fire resistance with production categories B, D and D;

b) pipelines with flammable liquid and gaseous products in galleries, if mixing of products can cause an explosion or fire;

c) pipelines with flammable and combustible liquids and gases, along combustible coatings and walls;

on coatings and walls of buildings in which explosive materials are located;

d) gas pipelines for flammable gases;

on the territory of warehouses for flammable and combustible liquids and materials.

Note. The on-site pipeline is transit in relation to

those buildings whose technological installations do not produce or consume

liquids and gases transported through these pipelines.

4.24. Aboveground pipelines for flammable and combustible liquids, laid on separate supports, overpasses, etc., should be placed at a distance of at least 3 m from the walls of buildings with openings; from walls without openings, this distance can be reduced to 0.5 m.

4.25. Pressure pipelines with liquids and gases, as well as power and communication cables should be placed on low supports, located:

a) in technical zones of enterprise sites specially designated for these purposes;

b) on the territory of warehouses for liquid products and liquefied gases.

4.26. The height from ground level to the bottom of pipes (or the surface of their insulation) laid on low supports in a free area outside the passage Vehicle and the passage of people, no less than:

with a pipe group width of at least 1.5 m - 0.35 m;

with a pipe group width of 1.5 m or more - 0.5 m.

The placement of pipelines with a diameter of 300 mm or less on low supports should be provided in two rows or more vertically, reducing the width of the network route as much as possible.

4.27*. The height from ground level to the bottom of pipes or insulation surfaces laid on high supports should be taken as follows:

a) in the impassable part of the site (territory), in places where people pass - 2.2 m;

b) at intersections with roads (from the top of the roadway) - 5 m;

c) at intersections with internal railway access roads and general network tracks - in accordance with GOST 9238-83;

d) excluded;

e) at intersections with tram tracks - 7.1 m from the rail head;

f) at the intersection with the trolleybus contact network (from the top of the road surface) - 7.3 m;

g) at the intersection of pipelines with flammable and combustible liquids and gases with internal railway access roads for transporting molten cast iron or hot slag (to the rail head) - 10 m; when installing thermal protection of pipelines - 6 m.

SNiP 41-02-2003

APPENDIX B (mandatory)

Table B.1 - Vertical distances

Structures and utility networks	Minimum vertical clear distances, m
To water supply, drainage, gas pipeline, sewerage	0,2
Up to armored communication cables	0,5
Up to power and control cables with voltages up to 35 kV	0.5 (0.25 in cramped conditions) - subject to the requirements of note 5
Up to oil-filled cables with a voltage of St. 110 kV	1.0 (0.5 in cramped conditions) - subject to the requirements of note 5
To a telephone sewer block or to an armored communication cable in pipes	0,15
To the base of the rails of industrial railways	1,0
The same, railways of the general network	2,0
» tram tracks	1,0
To the top of the road surface common use I, II and III categories	1,0
To the bottom of a ditch or other drainage structures or to the base of a railway roadbed embankment (if heating networks are located under these structures)	0,5
To subway structures (if heating networks are located above these structures)	1,0
To the head of the railway rails	Dimensions “S”, “Sp”, “Su” according to GOST 9238 and GOST 9720
To the top of the roadway	5,0
To the top of the pedestrian roads	2,2
To parts of the tram contact network	0,3
Same thing, trolleybus	0,2
To overhead power lines with the greatest sag of wires at voltage, kV:
up to 1	1,0

Notes
1 The depth of heating networks from the surface of the earth or road surface (except for highways of categories I, II and III) should be taken at least:
a) to the top of the ceilings of canals and tunnels - 0.5 m;
b) to the top of the chamber ceilings - 0.3 m;
c) to the top of the shell of the channelless laying 0.7 m. In the impassable part, ceilings of chambers and ventilation shafts for tunnels and channels protruding above the ground surface to a height of at least 0.4 m are allowed;
d) at the entrance of heating networks into the building, it is allowed to take depths from the ground surface to the top of the ceiling of channels or tunnels - 0.3 m and to the top of the shell of a channelless installation - 0.5 m;
e) at high level groundwater, it is allowed to provide for a reduction in the depth of channels and tunnels and the location of ceilings above the ground surface to a height of at least 0.4 m, if this does not violate the conditions of transport movement.
2 When laying heating networks above ground on low supports, the clear distance from the ground surface to the bottom of the thermal insulation of pipelines must be, m, not less than:
with a pipe group width of up to 1.5 m - 0.35;
with a pipe group width of more than 1.5 m - 0.5.
3 When laid underground, heating networks at the intersection with power, control and communication cables can be located above or below them.
4 For channelless installation, the clear distance from the water heating networks of an open heating supply system or hot water supply networks to the heating networks of sewer pipes located below or above is taken to be at least 0.4 m.
5 The soil temperature at the intersection of heating networks with electrical cables at the depth of laying power and control cables with voltages up to 35 kV should not increase by more than 10 °C in relation to the highest average monthly summer soil temperature and by 15 °C to the lowest average monthly winter soil temperature at a distance of up to 2 m from the outer cables, and the soil temperature at the depth of the oil-filled cable should not increase by more than 5 °C relative to the average monthly temperature at any time of the year at a distance of up to 3 m from the outer cables.
6 The depth of heating networks at underground intersections of railways of the general network in heaving soils is determined by calculation based on the conditions under which the influence of heat release on the uniformity of frost heaving of the soil is excluded. If it is impossible to ensure the specified temperature regime by deepening the heating networks, ventilation of tunnels (channels, cases), replacement heaving soil at the intersection or above-ground installation of heating networks.
7 Distances to the telephone sewer block or to the armored communication cable in pipes should be specified according to special standards.
8 In places of underground intersections of heating networks with communication cables, telephone sewer units, power and control cables with voltage up to 35 kV, it is allowed, with appropriate justification, to reduce the vertical distance in the light when installing reinforced thermal insulation and observing the requirements of paragraphs 5, 6, 7 of these notes.

Table B.2 - Horizontal distances from underground water heating networks open systems heating and hot water supply networks to sources of possible contamination

Source of pollution	Minimum horizontal clear distances, m
1. Structures and pipelines of domestic and industrial sewerage: when laying heating networks in channels and tunnels for ductless laying of heating networks D ≤ 200 mm The same, D ≤ 200 mm 2. Cemeteries, landfills, cattle burial grounds, irrigation fields: in the absence of groundwater in the presence of groundwater and in filter soils with the movement of groundwater towards heating networks 3. Cesspools and cesspools: in the absence of groundwater, in the presence of groundwater and in filter soils with the movement of groundwater towards heating networks	1,0 1,5 3,0
Note - When sewerage networks are located below heating networks with parallel laying, the horizontal distances must be taken to be no less than the difference in the elevations of the networks; above heating networks, the distances indicated in the table must increase by the difference in the depth of installation.

Table B.Z - Horizontal distances from building structures of heating networks or pipeline insulation shells for ductless installation to buildings, structures and utility networks

		Shortest clear distances, m
	Underground laying of heating networks
To the foundations of buildings and structures: when laying in channels and tunnels and non-subsidence soils (from the outer wall of the tunnel channel) with a diameter
	D u< 500	2,0
	D y = 500-800	5,0
	D y = 900 or more	8,0
	D u< 500	5,0
	D ≥ 500	8,0
b) for channelless installation in non-subsidence soils (from shells of channelless laying) with pipe diameter, mm:
	D u< 500	5,0
	D ≥ 500	7,0
The same in type I subsidence soils with:
	D ≤ 100	5,0
	D y > 100doD y<500	7,0
	D ≥ 500	8,0
To the axis of the nearest track of the 1520 mm gauge railway		4.0 (but not less than the depth of the heating network trench up to

Buildings, structures and utility networks
	the base of the embankment)
The same, 750 mm gauge	2,8
To the nearest iron roadbed structure	3.0 (but not less than depth
roads	heating network trenches up to
	grounds for extreme
	structures)
To the axis of the nearest electrified railway track	10,75
roads
To the center of the nearest tram track	2,8
To the side stone of the road street (edge ​​of the roadway,	1,5
reinforced shoulder strip)
To the outer edge of the ditch or the bottom of the road embankment	1,0
To the foundations of fences and pipeline supports	1,5
To masts and poles of external lighting and communication networks	1,0
To the foundations of bridge supports and overpasses	2,0
To the foundations of railway contact network supports	3,0
The same, trams and trolleybuses	1,0
Up to power and control cables with voltages up to 35 kV and	2.0 (see note 1)
oil-filled cables (up to 220 kV)
To the foundations of overhead power transmission line supports when
voltage, kV (at approach and intersection):
up to 1	1,0
St. 1 to 35	2,0
St.35	3,0
To the telephone sewer block, armored cable	1,0
communications in pipes and to radio broadcast cables
To the water pipes	1,5
The same, in type I subsidence soils	2,5
To drainage and storm drainage	1,0
To industrial and domestic sewerage (with closed	1,0
heating system)
To gas pipelines with pressure up to 0.6 MPa during installation	2,0
heating networks in channels, tunnels, as well as with ductless
laying with associated drainage
The same, more than 0.6 to 1.2 MPa	4,0
To gas pipelines with pressure up to 0.3 MPa with ductless	1,0
laying heating networks without associated drainage
The same, more than 0.3 to 0.6 MPa	1,5
The same, more than 0.6 to 1.2 MPa	2,0
To the tree trunks	2.01 (see note 10)
Up to the bushes	1.0 (see note 10)
To canals and tunnels for various purposes (including to	2,0
edges of irrigation network canals - irrigation ditches)
To subway structures when lining with external	5.0 (but not less than depth
adhesive insulation	heating network trenches up to
	foundations of the structure)
The same, without adhesive waterproofing	8.0 (but not less than depth
	heating network trenches up to
	foundations of the structure)
Before the fencing of the above-ground metro lines	5

Buildings, structures and utility networks	Shortest clear distances, m
To tanks of automobile filling stations (gas stations): a) with ductless installation b) with duct installation (provided that ventilation shafts are installed on the heating network channel)	10,0 15,0
Aboveground laying of heating networks
To the nearest railway roadbed structure To the axis of the railway track from intermediate supports (when crossing railways) To the axis of the nearest tram track To the side stone or to the outer edge of the road ditch To the overhead power line with the greatest deviation of wires at voltage, kV: St. 1 to 20 35-110 150 220 330 500 Up to a tree trunk Up to residential and public buildings for water heating networks, steam pipelines under pressure Р у< 0,63 МПа, конденсатных тепловых сетей при диаметрах труб, мм: Д у от 500 до 1400 Д у от 200 до 500 Д у < 200 До сетей горячего водоснабжения То же, до паровых тепловых сетей: Р у от 1,0 до 2,5 МПа св. 2,5 до 6,3 МПа	3 Dimensions “S”, “Sp”, “Su” according to GOST 9238 and GOST 9720 2.8 0.5 (see note 8) 1 3 4 4,5 5 6 6,5 2,0 25 (see note 9) 20 (see note 9) 10 (see note 9)
Notes 1 It is allowed to reduce the distance given in Table EL3, provided that the condition is met that throughout the entire area of ​​proximity of heating networks with cables, the ground temperature (accepted according to climatic data) at the place where the cables pass at any time of the year will not increase compared to the average monthly temperature by more than 10 ° C for power and control cables with voltages up to 10 kV and by 5 °C - for power control cables with voltages of 20 - 35 kV and oil-filled cables up to 220 kV. 2 When laying heating and other utility networks in common trenches (during their simultaneous construction), it is allowed to reduce the distance from heating networks to water supply and sewerage to 0.8 m when all networks are located at the same level or with a difference in elevations of no more than 0.4 m. 3 For heating networks laid below the base of the foundations of supports, buildings, structures, the difference in elevations must be additionally taken into account, taking into account the natural slope of the soil, or measures must be taken to strengthen the foundations. 4 When laying parallel underground heating and other utility networks at different depths, the locations shown in Table B.3. distances should increase and be taken no less than the difference in the laying of networks. In cramped installation conditions and the impossibility of increasing the distance, measures must be taken to protect utility networks from collapse during the repair and construction of heating networks. 5 When laying heating and other utility networks in parallel, it is allowed to reduce the distances given in Table R3_ to structures on the networks (wells, chambers, niches, etc.) to a value of at least 0.5 m, providing for measures to ensure the safety of structures during construction - installation work. 6 Distances to special communication cables must be specified in accordance with the relevant standards. 7 The distance from ground-based heating network pavilions for placing shut-off and control valves (if there are no pumps in them) to residential buildings is taken to be at least 15 m. In particularly cramped conditions, it can be reduced to 10 m. 8 When laying parallel overhead heating networks with overhead power lines with voltages over 1 to 500 kV outside populated areas, the horizontal distance from the outermost wire should be taken not less than the height of the support. 9 When laying temporary (up to 1 year of operation) water heating networks (bypasses) above ground, the distance to residential and public buildings can be reduced while ensuring measures for the safety of residents (100% inspection of welds, testing of pipelines at 1.5 of the maximum working pressure, but not less than 1.0 MPa, the use of completely covered steel shut-off valves, etc.). 10 In exceptional cases, if it is necessary to lay heating networks underground closer than 2 m from trees, 1 m from bushes and other green spaces, the thickness of the thermal insulation layer of pipelines should be doubled.

Norms, standards and rules for horizontal (clear) distances from the nearest underground utility networks to buildings and structures, between adjacent underground utility networks when they are parallel, and vertical (clear) distances when crossing utility lines. Distance between pipes and cables. Distances between pipelines, cables, garbage chutes, pipes and other utilities and other objects - tables. Distance from pipe to... Distance from cable to... table.

Horizontal distances (in clear distance) from the nearest underground utility networks to buildings and structures should be taken according to the corresponding table "SP 42.13330 Urban planning. Planning and development of urban and rural settlements"

Horizontal distances (in clear distance) from the nearest underground utility networks to buildings and structures should be taken according to the table below. The minimum distances from underground (ground with embankment) gas pipelines to buildings and structures should be taken in accordance with SP 62.13330 "Gas distribution systems. Updated edition of SNiP 42-01-2002 (the issue is not discussed in this review)."

Table (SP 42.13330) Horizontal distance, m (clear) from underground networks to buildings and structures

Network engineering	Distance, m, horizontally (clear) from underground networks to
	foundations of buildings and structures	foundations of enterprise fences, overpasses, overhead contact and communication supports, railways	extreme path axis		side stone of a street, road (edge ​​of a roadway, reinforced roadside strip)	the outer edge of a ditch or the bottom of a road embankment	foundations of overhead power transmission line supports
			1520 mm gauge railways, but not less than the depth of the trench to the base of the embankment and the edge of the excavation	750 mm gauge railways and trams			up to 1 kV of outdoor lighting, contact network of trams and trolleybuses	over 1 to 35 kV	over 35 to 110 kV and above
Water supply and pressure sewerage
Gravity sewerage (domestic and rainwater)
Drainage
Associated drainage
Heating network:
	2 (see note 3)
Power cables of all voltages and communication cables
Channels, communication tunnels
External pneumatic garbage chutes

* Applies only to distances from power cables.

• Notes
  1. For climatic subregions IA, IB, IG and ID, the distance from underground networks (water supply, domestic and rain sewerage, drainage, heating networks) during construction while maintaining the permafrost state of the foundation soils should be taken according to technical calculations.
  2. It is allowed to provide for the laying of underground utility networks within the foundations of supports and pipeline overpasses, contact networks, provided that measures are taken to exclude the possibility of damage to the networks in the event of settlement of the foundations, as well as damage to the foundations in the event of an accident on these networks. When placing utility networks to be laid using construction dewatering, their distance to buildings and structures should be established taking into account the zone of possible violation of the strength of foundation soils.
  3. Distances from heating networks for ductless installation to buildings and structures should be taken as for water supply.
  4. The distance from power cables with a voltage of 110-220 kV to the foundations of enterprise fences, overpasses, contact network supports and communication lines should be 1.5 m.
  5. Horizontal distances from the linings of underground metro structures made of cast iron tubes, as well as reinforced concrete or concrete with laminated waterproofing, located at a depth of less than 20 m (from the top of the lining to the surface of the ground), should be taken
  • to sewerage networks, water supply, heating networks - 5 m;
  • from linings without adhesive waterproofing to sewerage networks - 6 m,
  • for other water-carrying networks - 8 m;
  • The distance from the linings to the cables should be: voltage up to 10 kV - 1 m, up to 35 kV - 3 m.
• In irrigated areas with non-subsidence soils, the distance from underground utility networks to irrigation canals should be taken (to the edge of the canals), m:
  • 1 - from low and medium pressure gas pipelines, as well as from water supply systems, sewerage systems, drains and pipelines of flammable liquids;
  • 2 - from high-pressure gas pipelines up to 0.6 MPa, heating pipelines, domestic and storm sewerage;
  • 1.5 - from power cables and communication cables;
  • the distance from the irrigation canals of the street network to the foundations of buildings and structures is 5.

The horizontal (clear) distances between adjacent underground utility networks when they are placed in parallel should be taken according to the table below "SP 42.13330 Urban planning. Planning and development of urban and rural settlements"

12.36 The horizontal (clear) distances between adjacent underground utility networks when they are placed in parallel should be taken according to table 16, and at the inputs of utility networks in buildings of rural settlements - at least 0.5 m. If the difference in the depth of adjacent pipelines is more than 0, The 4 m distances indicated in Table 16 should be increased taking into account the steepness of the trench slopes, but not less than the depth of the trench to the base of the embankment and the edge of the excavation. The minimum distances from underground (ground with embankment) gas pipelines to utility networks should be taken in accordance with SP 62.13330. and at the inputs of utility networks in buildings of rural settlements - at least 0.5 m. If the difference in the depth of adjacent pipelines is more than 0.4 m, the distances indicated in Table 16 should be increased taking into account the steepness of the slopes of the trenches, but not less than the depth of the trench up to the base of the embankment and the edge of the excavation. The minimum distances from underground (ground with embankment) gas pipelines to utility networks should be taken in accordance with SP 62.13330. "Gas distribution systems. Updated edition of SNiP 42-01-2002" (the issue is not discussed in this review).

Table (SP 42.13330) Horizontal distance, m (clear) to adjacent utility networks when they are placed in parallel

Network engineering	Distance, m, horizontally (clear) to
	water supply	domestic sewerage	drainage and storm sewerage	power cables of all voltages	communication cables	heating networks		channels, tunnels	external pneumatic waste pipelines
						outer wall of a channel, tunnel	shell of ductless laying
Water pipes	See note 1	See note 2
Domestic sewerage	See note 2
Rainwater drainage
Power cables of all voltages
Communication cables
Heating network:
from the outer wall of the channel, tunnel
from the shell of the channelless laying
Channels, tunnels
External pneumatic garbage chutes

* In accordance with the requirements of section 2 of the PUE rules.

• Notes
  1. When laying several water supply lines in parallel, the distance between them should be taken depending on the technical and geotechnical conditions in accordance with SP 31.13330.
  2. The distances from the domestic sewerage system to the drinking water supply should be taken, m:
     • to the water supply system made of reinforced concrete and asbestos-cement pipes - 5;
     • to a water supply system made of cast iron pipes with a diameter of up to 200 mm - 1.5,
     • with a diameter over 200 mm - 3;
     • to the water supply system made of plastic pipes - 1.5.
  3. The distance between the sewerage networks and industrial water supply, depending on the material and diameter of the pipes, as well as the nomenclature and characteristics of the soil, should be 1.5 m.

When utility networks intersect each other, vertical (clear) distances should be taken in accordance with the requirements of SP 18.13330. "CODE OF RULES MASTER PLANS FOR INDUSTRIAL ENTERPRISES Master plans for industrial enterprises" Updated edition of SNiP II-89-80

• When crossing utility lines, the vertical (clear) distances must be at least:
  • a) between pipelines or electrical cables, communication cables and railway and tram tracks, counting from the base of the rail, or highways, counting from the top of the coating to the top of the pipe (or its case) or electrical cable - based on the strength of the network, but not less than 0 .6 m;
  • b) between pipelines and electrical cables placed in canals or tunnels and railways, the vertical distance, counting from the top of the canals or tunnels to the bottom of the railway rails, is 1 m, to the bottom of the ditch or other drainage structures or the base of the railway earthen embankment canvas - 0.5 m;
  • c) between pipelines and power cables with voltage up to 35 kV and communication cables - 0.5 m;
  • d) between power cables with a voltage of 110-220 kV and pipelines - 1 m;
  • e) in the conditions of reconstruction of enterprises, subject to compliance with the requirements of the PUE, the distance between cables of all voltages and pipelines may be reduced to 0.25 m;
  • f) between pipelines for various purposes (with the exception of sewer pipelines crossing water pipelines and pipelines for toxic and foul-smelling liquids) - 0.2 m;
  • g) pipelines transporting drinking water should be placed 0.4 m higher than sewer or pipelines transporting toxic and foul-smelling liquids;
  • h) it is allowed to place steel pipelines enclosed in cases transporting drinking water below sewer pipes, while the distance from the walls of the sewer pipes to the edge of the case must be at least 5 m in each direction in clay soils and 10 m in coarse and sandy soils , and sewer pipelines should be made of cast iron pipes;
  • i) utility and drinking water supply inlets with a pipe diameter of up to 150 mm may be provided below sewer lines without installing a casing, if the distance between the walls of intersecting pipes is 0.5 m;
  • j) when laying ductless pipelines of water heating networks of an open heating supply system or hot water supply networks, the distance from these pipelines to the sewer pipelines located below and above should be taken as 0.4 m.

Clear distance- 2.40. Clear distance is the smallest distance between two outer surfaces. Source …

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Clear width of the stairs- 3.7. The clear width of the staircase is the minimum distance between the internal surfaces of the staircase strings. Source: NPB 171 98*: Manual fire ladders. General technical requirements. Test methods 3.8 clear width of stairs: Minimum... ... Dictionary-reference book of terms of normative and technical documentation

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