UPDATED VERSION OF SNIP 2.04.01-85*

Domestic water supply and drainage systems in buildings

SP 30.13330.2012

OKS 91.140.60,
OKS 91.140.80

Foreword

The goals and principles of standardization in the Russian Federation are established by the Federal Law of December 27, 2002 N 184-FZ "On technical regulation", and the development rules - by the Decree of the Government of the Russian Federation of November 19, 2008 N 858 "On the procedure for developing and approving sets of rules ".

About the set of rules

1. Performers - OJSC "SantekhNIIproekt", OJSC "Research Center "Construction".
2. Introduced by the Technical Committee for Standardization TC 465 "Construction".
3. Prepared for approval by the Department of Architecture, Construction and Urban Policy.
4. Approved by the Order of the Ministry of Regional Development of the Russian Federation (Ministry of Regional Development of Russia) dated December 29, 2011 N 626 and entered into force on January 1, 2013.
5. Registered by the Federal Agency for Technical Regulation and Metrology (Rosstandart). Revision of SP 30.13330.2010 "SNiP 2.04.01-85*. Internal water supply and sewerage of buildings".

Information about changes to this set of rules is published in the annually published information index "National Standards", and the text of changes and amendments - in the monthly published information indexes "National Standards". In case of revision (replacement) or cancellation of this set of rules, a corresponding notice will be published in the monthly published information index "National Standards". Relevant information, notification and texts are also posted in the public information system - on the official website of the developer (Ministry of Regional Development of Russia) on the Internet.

Introduction

This set of rules is an updated version of SNiP 2.04.01-85 * "Internal water supply and sewerage of buildings". The basis for the development of a regulatory document are: Federal Law of December 30, 2009 N 384-FZ "Technical Regulations on the Safety of Buildings and Structures", Federal Law N 184-FZ "On Technical Regulation", Federal Law N 261-FZ "On Energy Saving and on improving energy efficiency.
The SNiP was updated by a team of authors: OJSC "SantekhNIIproekt" (PhD A.Ya. Sharipov, engineer T.I. Sadovskaya, engineer E.V. Chirikova), OJSC "Mosproekt" (engineers E.N. Chernyshev , K.D. Kunitsyna), NP "ABOK" (Doctor of Technical Sciences, Prof. Yu.A. Tabunshchikov, engineer A.N. Kolubkov), OJSC "CNS" (engineer V.P. Bovbel) , Chamber of Commerce and Industry of the Russian Federation (engineer A.S. Verbitsky), State Unitary Enterprise "MosvodokanalNIIproekt" (engineer A.L. Lyakmund).

1 area of ​​use

1.1. This set of rules applies to the designed and reconstructed internal systems of cold and hot water supply, sewerage and drains of buildings and structures (hereinafter referred to as buildings) for various purposes up to 75 meters high.
1.2. These rules do not apply:
on the internal fire water supply of buildings and structures;
automatic water fire extinguishing systems;
thermal points;
hot water treatment plants;
hot water supply systems supplying water for medical procedures, technological needs of industrial enterprises and water supply systems within process equipment;
systems of special industrial water supply (deionized water, deep cooling, etc.).

This set of rules uses references to the following regulatory documents:
SP 5.13130.2009 Fire protection systems. Fire alarm and fire extinguishing installations are automatic. Design norms and rules
SP 10.13130.2009 Fire protection systems. Internal fire water supply. fire safety requirements
SP 21.13330.2012 "SNiP 2.01.09-91 Buildings and structures in undermined areas and subsidence soils"
SP 31.13330.2012 "SNiP 2.04.02-84* Water supply. External networks and facilities"
SP 32.13330.2012 "SNiP 2.04.03-85 Sewerage. External networks and structures"
SP 54.13330.2011 "SNiP 31-01-2003 Residential multi-apartment buildings"
SP 60.13330.2012 "SNiP 41-01-2003 Heating, ventilation and air conditioning"
SP 61.13330.2012 "SNiP 41-03-2003 Thermal insulation of equipment and pipelines"
SP 73.13330.2012 "SNiP 3.05.01-85 Internal sanitary systems of buildings"
SP 118.13330.2012 "SNiP 31-06-2009 Public buildings and structures"
SP 124.13330.2012 "SNiP 41-02-2003 Heating networks"
GOST 17.1.2.03-90 Nature protection. Hydrosphere. Criteria and indicators of water quality for irrigation
SanPiN 2.1.4.1074-01 Drinking water. Hygienic requirements for water quality of centralized drinking water supply systems. Quality control. Hygienic requirements for ensuring the safety of hot water supply systems
SanPiN 2.1.4.2496-09 Hygienic requirements for ensuring the safety of hot water supply systems
SanPiN 2.1.2.2645-10 Sanitary and epidemiological requirements for living conditions in residential buildings and premises
SN 2.2.4 / 2.1.8.562-96 Noise at workplaces, in residential, public buildings and in residential areas
SN 2.2.4/2.1.8.566-96 Industrial vibration, vibration in residential and public buildings.
Note. When using this standard, it is advisable to check the effect of reference standards and classifiers in the public information system - on the official website of the national body of the Russian Federation for standardization on the Internet or according to the annually published information index "National Standards", which was published as of January 1 of the current year, and according to the corresponding monthly published information signs published in the current year. If the reference standard is replaced (modified), then when using this set of rules, one should be guided by the replacing (modified) document. If the referenced document is canceled without replacement, the provision in which the link to it is given applies to the extent that this link is not affected.

3. Terms and definitions

This document uses terms whose definitions are adopted according to the Rules for the use of public water supply and sewerage systems in the Russian Federation, approved, as well as the following terms with the corresponding definitions:
3.1. Subscriber: a legal entity, as well as entrepreneurs without forming a legal entity, owning, managing or operating objects, water supply and (or) sewerage systems that are directly connected to public water supply and (or) sewerage systems, who have entered into a water supply and (or) sewerage organization with an organization sewerage facilities in accordance with the established procedure, an agreement for the supply (receipt) of water and (or) the reception (discharge) of wastewater;
3.2. Engineering systems accident: damage or failure of water supply systems, sewerage systems or individual structures, equipment, devices, resulting in the cessation or significant reduction in water consumption and sanitation, drinking water quality or causing damage to the environment, property of legal entities or individuals and public health;
3.3. Water consumption balance: the volume of water used per year for drinking, sanitary, fire-fighting, industrial needs and their satisfaction from all sources of water supply, including drinking-quality water supply, recycling water supply, collection and treatment of storm water, etc.;
3.4. Internal sewerage system (internal sewerage): a system of pipelines and devices within the boundaries of the external contour of a building and structures, limited by outlets up to the first manhole, ensuring the discharge of sewage, rain and melt water into the sewerage network of the appropriate destination of a settlement or enterprise;
3.5. Internal water supply system (internal water supply): a system of pipelines and devices that provides water supply to sanitary appliances, technological equipment and fire hydrants within the boundaries of the outer contour of the walls of one building or a group of buildings and structures and has a common water metering device from external water supply networks of a populated point or company. In special natural conditions, the boundary of the internal water supply is considered from the control well closest to the building (structure);
3.6. Water supply and sewerage devices and structures for connection to water supply and sewerage systems (water inlet or sewer outlet): devices and structures through which the subscriber receives drinking water from the water supply system and (or) discharges wastewater into the sewerage system;
3.7. Water consumption: the use of water by the subscriber (sub-subscriber) to meet their needs;
3.8. Water supply: a technological process that ensures the intake, preparation, transportation and transfer of drinking water to subscribers;
3.9. Wastewater disposal: a technological process that ensures the reception of wastewater from subscribers with their subsequent transfer to sewage treatment facilities;
3.10. Water supply network: a system of pipelines and structures on them intended for water supply;
3.11. Guaranteed pressure: pressure at the inlet of the subscriber, which is guaranteed to be provided by the water supply organization according to the technical conditions;
3.12. Sewer network: a system of pipelines, collectors, channels and structures on them for collecting and discharging sewage;
3.13. Ventilated sewer riser: a riser having an exhaust part and through it - communication with the atmosphere, contributing to air exchange in the pipelines of the sewer network;
3.14. Ventilated valve: a device that allows air to pass in one direction - following the liquid moving in the pipeline and does not allow air to pass in the opposite direction;
3.15. Sewer non-ventilated riser: a riser that is not connected to the atmosphere. Non-ventilated risers include:
a riser that does not have an exhaust part;
riser equipped with a ventilation valve;
a group (at least four) of risers, united on top by a collection pipeline, without an exhaust part device;
3.16. Local treatment facilities: facilities and devices intended for the treatment of wastewater of the subscriber (sub-subscriber) before discharge (reception) into the public sewerage system or for use in the circulating water supply system;
3.17. Water consumption (water disposal) limit: the maximum volume of released (received) drinking water and received (discharged) wastewater established by the technical conditions for a subscriber for a certain period of time;
3.18. Water supply and sewerage organization ("Vodokanal"): an enterprise (organization) that discharges water from the water supply system and (or) receives wastewater into the sewerage system and operates these systems;
3.19. Drinking water: water after preparation or in a natural state that meets the hygienic requirements of sanitary standards and is intended for drinking and domestic needs of the population and (or) food production;
3.20. Throughput capacity of a device or structure for connection: the ability of a water inlet (sewer outlet) to pass the estimated amount of water (wastewater) under a given mode for a certain time;
3.21. Estimated water consumption: consumption rates substantiated by research and operational practice, taking into account the main influencing factors (number of consumers, number of sanitary appliances, occupancy of apartments in residential buildings, output volume, etc.);
estimated water consumption and consumption rates cannot be used to determine the actual volume of water consumption and commercial calculation;
3.22. Estimated costs of wastewater: justified by research and operating practice, the values ​​​​of costs predicted for the sewer facility as a whole or part of it, taking into account influencing factors (number of consumers, quantity and characteristics of sanitary appliances and equipment, capacity of discharge pipelines, etc.);
3.23. Permits: permission to connect to water supply (sewage) systems, issued by local governments in agreement with the local services of Rospotrebnadzor, and technical conditions for connection, issued by a water supply and sewerage organization;
3.24. Drinking water supply (receipt) mode: guaranteed flow rate (hourly, second) and free pressure at a given characteristic water consumption for the needs of the subscriber;
3.25. System of open hot water intake: analysis of hot water directly from the network of the heat supply system;
3.26. Closed hot water intake system: water heating for hot water supply in heat exchangers and water heaters;
3.27. Recycled water supply system: cleaning system in local treatment facilities and reuse of wastewater for household and technological needs;
3.28. Wastewater composition: wastewater characteristics, including a list of pollutants and their concentration;
3.29. Measuring instrument (instrument): a technical instrument intended for measurements, having normalized metrological characteristics, reproducing and (or) storing a unit of physical quantity, the size of which is assumed to be unchanged (within a specified error) within a certain time interval, and permitted to be used for commercial purposes. accounting. According to the design assignment, the device must also be capable of remote data transmission;
3.30. Waste water: water generated as a result of human activities (household waste water) and subscribers after using water from all sources of water supply (drinking, technical, hot water supply, steam from heat supply organizations);
3.31. Metering unit for consumed drinking water and discharged wastewater (metering unit): a set of instruments and devices that provide accounting for the amount of consumed (received) water and discharged (received) wastewater;
3.32. Centralized water supply system: a complex of engineering structures of settlements for the intake, preparation, transportation and transfer of drinking water to subscribers;
3.33. Centralized sewerage system: a complex of engineering structures of settlements for collecting, treating and diverting wastewater into water bodies and processing sewage sludge.

4. General provisions

4.1. Pipelines of water supply systems (including external fire extinguishing) and sewage systems laid outside buildings must comply with the standards for external water supply and sewerage networks (SP 31.13330 and SP 32.13330).
4.2. Hot water preparation should be provided in accordance with the norms for heat networks SP 124.13330.
4.3. In buildings of any purpose erected in sewered areas, internal water supply and sewerage systems should be provided.
The quality of wastewater after treatment in local installations must comply with the technical conditions for receiving them in the external sewerage network and departmental standards.
4.4. In non-sewered areas of settlements, internal water supply systems with the installation of local apartment and / or collective systems for post-treatment of drinking water and sewerage systems with the installation of local treatment facilities should be provided in residential buildings with a height of more than two floors, hotels, nursing homes for the disabled and the elderly, hospitals, maternity hospitals, clinics, outpatient clinics, dispensaries, sanitary and epidemiological stations, sanatoriums, rest homes, boarding houses, sports and recreation institutions, preschool educational institutions, boarding schools, primary and secondary vocational education institutions, secondary schools, cinemas, club and leisure and entertainment institutions, catering establishments, sports facilities, baths and laundries.
Notes.
1. According to the design assignment, it is allowed to install internal water supply and sewerage systems in non-sewered areas of settlements for one- and two-story residential buildings.
2. In industrial and auxiliary buildings, internal water supply and sewerage systems may not be provided in cases where the enterprise does not have a centralized water supply system and the number of employees is not more than 25 people per shift.
3. In buildings equipped with internal domestic drinking or industrial water supply, it is necessary to provide an internal sewerage system.

4.5. In non-sewered areas of settlements, in agreement with the local authorities of Rospotrebnadzor, it is allowed to equip the following buildings with backlash closets or dry closets (without water supply inlets):
production and auxiliary buildings of industrial enterprises with the number of employees up to 25 people per shift;
residential buildings with a height of 1 - 2 floors;
hostels with a height of 1 - 2 floors for no more than 50 people;
objects of physical culture and sports and leisure purposes for no more than 240 seats, used only in the summer;
club and leisure-entertainment institutions;
open planar sports facilities;
catering establishments for no more than 25 seats.
Notes.
1. Backlash closets are allowed to be provided in buildings in I - III climatic regions.
2. Methods for disposing of the contents of backlash closets and dry closets are determined by the project according to the specifications of local utilities.

4.6. The need for internal drains is established by the architectural and construction part of the project.
4.7. Pipes, fittings, equipment and materials used in the construction of internal systems of cold and hot water supply, sewerage and drains must comply with the requirements of these norms, national standards, sanitary and epidemiological norms and other documents approved in the prescribed manner.
For the transportation and storage of drinking water, pipes, materials and anti-corrosion coatings that have passed the sanitary and epidemiological examination and have the appropriate permits and certificates for use in domestic and drinking water supply should be used.

Determination of the estimated water and waste flows

4.8. For the hydraulic calculation of water pipelines and the selection of equipment, the following estimated hot and cold water flows should be used:
daily water consumption (total, hot, cold) for the estimated time of water consumption, for which the average hourly consumption is set, m3/day;
maximum hourly water consumption (total, hot, cold), m3/h;
minimum hourly water consumption (general, hot, cold), m3/h;
maximum second water consumption (total, hot, cold), l/s.
Notes.
1. Estimated average hourly and maximum second water flow rates should be taken in accordance with Table A.1 of Appendix A.
2. Estimated (specific) annual average daily water consumption in residential buildings per 1 person (l/day) should be taken according to Table A.2 of Appendix A.
3. Estimated (specific) annual average daily water consumption for various consumers (l/day) should be taken according to Table A.3 of Appendix A.

4.9. Estimated water consumption in cold water pipelines should be determined depending on:
a) specific average hourly water consumption, l / h, related to one consumer or sanitary fixture;
b) the type and total number of water consumers and / or the type and total number of sanitary appliances (for the water supply system as a whole or for individual sections of the design scheme of the water supply network). With an unknown number of sanitary appliances (drainage points), it is allowed to take the number of appliances equal to the number of consumers.
4.10. Estimated water consumption in hot water pipelines should be determined:

ConsultantPlus: note.
In the official text of the document, apparently, a misprint was made: in paragraph 4.2, subparagraphs a) and b) are missing.

for the drawdown mode - similarly to 4.2 a), b) taking into account the residual circulation flow in the areas from the place of heating to the place of the first water withdrawal;
for the circulation mode - with thermal-hydraulic calculation.
4.11. For risers of sewerage systems, the estimated flow rate is the maximum second flow rate of effluents from sanitary appliances connected to the riser, which does not cause a breakdown of hydraulic valves of any type of sanitary appliances (wastewater receivers). This flow rate should be determined as the sum of the calculated maximum second water flow rates of all sanitary fixtures, determined in Table A.1 of Annex A, and the calculated maximum second flow rate from the device with maximum drainage (should, as a rule, take the maximum second flow rate from the flushing toilet bowl equal to 1.6 l/s).
4.12. For horizontal outlet pipelines of sewerage systems, the design flow rate should be considered the flow rate, the value of which is calculated depending on the number of sanitary appliances N connected to the calculated pipeline section and the length of this pipeline section L, m, according to the formula

where is the total maximum hourly water consumption in the design area, m3/h;
- coefficient taken according to table 1;
- estimated maximum flow rate, l / s, from the device with maximum drainage.

Table 1

Values ​​depending on the number of devices N
and the length of the outlet pipeline

N Length of the outlet (horizontal) pipeline, m
1 3 5 7 10 15 20 30 40 50 100 500 1000
4 0,61 0,51 0,46 0,43 0,40 0,36 0,34 0,31 0,27 0,25 0,23 0,15 0,13
8 0,63 0,53 0,48 0,45 0,41 0,37 0,35 0,32 0,28 0,26 0,24 0,16 0,13
12 0,64 0,54 0,49 0,46 0,42 0,39 0,36 0,33 0,29 0,26 0,24 0,16 0,14
16 0,65 0,55 0,50 0,47 0,43 0,39 0,37 0,33 0,30 0,27 0,25 0,17 0,14
20 0,66 0,56 0,51 0,48 0,44 0,40 0,38 0,34 0,30 0,28 0,25 0,17 0,14
24 0,67 0,57 0,52 0,48 0,45 0,41 0,38 0,35 0,31 0,28 0,26 0,17 0,15
28 0,68 0,58 0,53 0,49 0,46 0,42 0,39 0,36 0,31 0,29 0,27 0,18 0,15
32 0,68 0,59 0,53 0,50 0,47 0,43 0,40 0,36 0,32 0,30 0,27 0,18 0,15
36 0,69 0,59 0,54 0,51 0,47 0,43 0,40 0,37 0,33 0,30 0,28 0,19 0,16
40 0,70 0,60 0,55 0,52 0,48 0,44 0,41 0,37 0,33 0,31 0,28 0,19 0,16
100 0,77 0,69 0,64 0,60 0,56 0,52 0,49 0,45 0,40 0,37 0,34 0,23 0,20
500 0,95 0,92 0,89 0,88 0,86 0,83 0,81 0,77 0,73 0,70 0,66 0,50 0,44
1000 0,99 0,98 0,97 0,97 0,96 0,95 0,94 0,93 0,91 0,90 0,88 0,77 0,71
Note. The length of the outlet pipeline should be taken
distance from the last riser in the calculated section to the nearest
connection of the next riser or, in the absence of such connections,
to the nearest sewer well.

5. Plumbing system

5.1. The quality and temperature of the water in the plumbing system
5.1.1. The quality of cold and hot water (sanitary and epidemiological indicators) supplied for household and drinking needs must comply with SanPiN 2.1.4.1074 and SanPiN 2.1.4.2496. The quality of water supplied for production needs is determined by the design assignment (technological requirements).
5.1.2. The temperature of hot water at the points of water intake must comply with the requirements of SanPiN 2.1.4.1074 and SanPiN 2.1.4.2496 and, regardless of the heat supply system used, must not be lower than 60 °C and not higher than 75 °C.
Note. The requirement of this paragraph does not apply to the places of water intake for production (technological) needs, as well as to the places of water intake for the needs of the service personnel of these institutions.

5.1.3. In the premises of preschool institutions, the temperature of hot water supplied to the water fittings of showers and washbasins should not exceed 37 ° C.
5.1.4. The choice of hot water preparation scheme and, if necessary, its treatment should be carried out in accordance with SP 124.13330.
5.1.5. In hot water supply systems of public catering enterprises and others, whose consumers need water with a temperature higher than that specified in 5.1.2, additional water heating in local water heaters should be provided.
5.1.6. In settlements and enterprises, in order to save drinking quality water, with a feasibility study and in agreement with the authorities of Rospotrebnadzor, it is allowed to supply non-potable water to urinals and toilet flush tanks.

5.2. Cold and hot water plumbing systems
5.2.1. Cold water supply systems can be centralized or local. The choice of the internal water supply system of the building (centralized or local) should be made depending on the sanitary and hygienic and fire safety requirements, the requirements of the production technology, and also taking into account the accepted external water supply scheme.
The hot water supply system should be taken, as a rule, with a closed water intake with the preparation of hot water in heat exchangers and water heaters (water-water, gas, electric, solar, etc.). According to the design assignment, it is allowed to provide in the building a hot water supply system with an open (directly from the heating network) water intake.
5.2.2. In buildings (structures), depending on their purpose, internal water supply systems should be provided:
household and drinking;
hot;
fire protection according to 5.3;
negotiable;
production.
The fire water supply system in buildings with domestic drinking or industrial water supply systems should, as a rule, be combined with one of them, provided that the requirements of SP 10.13130 ​​and this set of rules are met:
household and drinking water supply with fire-fighting water supply (household and fire-fighting water supply);
industrial water supply with fire-fighting water supply (industrial fire-fighting water supply);
networks of cold and hot drinking water supply systems are not allowed to be combined with networks of water supply systems that supply water of non-potable quality.
5.2.3. Internal water supply systems (domestic, hot water, industrial, fire-fighting) include: entrances to buildings, cold and hot water consumption metering units, distribution network, risers, connections to sanitary appliances and technological installations, water folding, mixing, shut-off and control valves . Depending on local conditions, production technology, it is allowed to provide spare (accumulator) and control tanks in the internal water supply system.
5.2.4. The choice of a scheme for heating and treating water for centralized hot water supply systems should be provided in accordance with SP 124.13330.
5.2.5. In systems of centralized hot water supply, if it is necessary to maintain the water temperature at the points of water intake not lower than that specified in 5.1.2, a hot water circulation system should be provided during the period when there is no water intake.
In hot water supply systems with time-regulated hot water consumption, hot water circulation may not be provided if its temperature at the points of water intake does not decrease below the established 5.1.2.
5.2.6. Towel dryers installed in bathrooms and shower rooms to maintain the set air temperature in them in accordance with SP 60.13330 and SanPiN 2.1.2.2645 should be connected to the supply pipelines of the hot water supply system or to the consumer's power supply system. When justified, heated towel rails may be connected to the circulation pipes of the hot water supply system, provided that a shut-off valve and a closing section are installed.
5.2.7. In residential and public buildings with a height of more than 4 floors, water risers should be combined with ring jumpers into sectional units with each water unit connected by one circulation pipeline to the collection circulation pipeline of the system.
From three to seven water risers should be combined into sectional nodes. Ring jumpers should be laid: in a warm attic, in a cold attic, provided that the pipes are thermally insulated, under the ceiling of the upper floor when water is supplied to the water risers from below, or along the basement when water is supplied to the risers from above.
5.2.8. In the hot water supply system, the connection of water folding devices to circulation pipelines is not allowed.
5.2.9. Pipelines of hot water systems, except for connections to appliances, should be insulated to protect against heat loss. Pipelines of the cold water supply system (except for dead-end fire risers) laid in canals, mines, sanitary cabins, tunnels, as well as in rooms with high humidity, should be insulated to prevent moisture condensation in accordance with SP 61.13330.
5.2.10. The hydrostatic pressure in the system of domestic drinking or domestic fire-fighting water supply at the level of the lowest located sanitary appliance should be no more than 0.45 MPa (for buildings designed in the existing development no more than 0.6 MPa), at the level of the most highly located devices - according to the passport data of these devices, and in the absence of such data, at least 0.2 MPa.
It is allowed to increase the pressure up to 0.6 MPa at the level of the lowest located sanitary appliance in the system of the household fire-fighting water supply for the time of extinguishing the fire.
In a two-zone fire-fighting water supply system (in schemes with upper piping), in which fire risers are used to supply water to the upper floor, the hydrostatic pressure should not exceed 0.9 MPa at the level of the lowest located sanitary fixture.
5.2.11. When the design pressure in the network exceeds the pressure specified in 5.2.10, it is necessary to provide devices (pressure regulators) that reduce the pressure. Pressure regulators installed in the drinking water supply system must provide after them the design pressure both in static and dynamic mode of operation of the system. In buildings where the design water pressure of sanitary appliances, water folding and mixing fittings exceeds the allowable values ​​specified in 5.2.10, it is allowed to use fittings with built-in water flow regulators.

5.3. Fire water supply systems
5.3.1. For residential, public, as well as administrative buildings of industrial enterprises, as well as for industrial and storage buildings, the need for an internal fire water supply system, as well as the minimum water consumption for fire extinguishing, should be determined in accordance with the requirements of SP 10.13130.
5.3.2. For integrated systems of utility and fire-fighting water pipelines, pipeline networks should be taken according to the highest design flow rate and water pressure:
for the needs of water consumption in accordance with this set of rules;
for the needs of fire fighting in accordance with SP 10.13130.

5.4. Networks of cold and hot water pipes
5.4.1. Cold water networks should be taken:
dead-end, if a break in the water supply is allowed and if the number of fire hydrants is less than 12;
ring or with looped inputs with two dead-end pipelines with branches to consumers from each of them to ensure a continuous supply of water;
ring fire risers with a combined system of utility and fire-fighting water supply in buildings with a height of 6 floors or more. At the same time, to ensure the replacement of water in the building, it is necessary to provide for the ringing of fire risers with one or more water risers with the installation of shutoff valves.
5.4.2. Two or more inputs should be provided for buildings:
residential with more than 400 apartments, clubs and leisure and entertainment facilities with a stage, cinemas with more than 300 seats;
theaters, clubs and leisure and entertainment establishments with a stage, regardless of the number of seats;
baths with the number of places 200 and more;
laundries for 2 or more tons of linen per shift;
buildings in which 12 or more fire hydrants are installed;
with cold water ring networks or with looped inlets according to 5.4.1;
buildings equipped with sprinkler and deluge systems in accordance with SP 5.13130 ​​with more than three control units.
5.4.3. When arranging two or more inputs, it is necessary to provide for their connection, as a rule, to different sections of the external ring network of the water supply system. Between the inputs to the building on the external network, locking devices should be installed to ensure the supply of water to the building in the event of an accident in one of the sections of the network.
5.4.4. If it is necessary to install pumps in the building to increase the pressure in the internal water supply network, the inlets must be combined in front of the pumps with the installation of shut-off valves on the connecting pipeline to ensure the supply of water by each pump from any inlet.
With the device on each input of independent pumping units, the combination of inputs is not required.
5.4.5. At the inlets of the water supply, it is necessary to provide for the installation of check valves if several inlets are installed on the internal water supply network, which have measuring devices and are interconnected by pipelines inside the building.
The horizontal distance in the light between the inlets of the drinking water supply and the outlets of the sewer or drains should be taken at least:
1.5 m - with a diameter of the input pipeline up to 200 mm inclusive;
3 m - with an input pipeline diameter of more than 200 mm.
Joint laying of water supply inlets for various purposes is allowed.
5.4.6. On the inlet pipelines, stops should be provided for pipe turns in the vertical or horizontal plane, when the resulting forces cannot be absorbed by the pipe connections.
5.4.7. The intersection of the input pipeline with the walls of the building should be carried out:
in dry soils - with a gap of 0.2 m between the pipeline and building structures and sealing the hole in the wall with waterproof and gas-tight (in gasified areas) elastic materials, in wet soils - with the installation of glands.
5.4.8. The laying of distributing networks of cold and hot water supply pipelines in residential and public buildings should be provided in undergrounds, basements, technical floors and attics, and in the absence of attics - on the ground floor in underground channels together with heating pipelines or under the floor with a removable cover, and also on the structures of buildings through which open laying of pipelines is allowed, or under the ceiling of non-residential premises of the upper floor.
5.4.9. Water risers and inlets of cold and hot water to apartments and other premises, as well as shutoff valves, measuring instruments, regulators should be placed in communication shafts with the installation of special technical cabinets that provide free access to them for technical personnel.
It is allowed to lay risers and wiring in shafts, openly - along the walls of showers, kitchens and other similar premises, taking into account the placement of the necessary locking, regulating and measuring devices.
For premises with increased requirements for finishing, and for all networks with pipelines made of polymeric materials (except for pipelines in sanitary facilities), hidden laying should be provided.
Hidden laying of steel pipelines connected by thread (with the exception of elbows for connecting wall-mounted water fittings) without access to butt joints is not allowed.
5.4.10. The laying of water supply networks inside industrial buildings, as a rule, should be provided open - along trusses, columns, walls and under ceilings. It is allowed to provide for the placement of water pipes in common channels with other pipelines, except for pipelines transporting flammable, combustible or poisonous liquids and gases.
Joint laying of utility and drinking water pipelines with sewer pipelines is allowed to be provided in through channels, while sewerage pipelines should be placed below the water supply.
Water pipelines are allowed to be laid in special channels during a feasibility study and according to the design assignment.
Pipelines supplying water to process equipment may be laid in the floor or under the floor, with the exception of basements.
5.4.11. When laying jointly in channels with pipelines transporting hot water or steam, the cold water supply network must be placed below these pipelines with a thermal insulation device.
5.4.12. The laying of pipelines should be provided with a slope of at least 0.002, if justified, it is allowed with a slope of 0.001.
5.4.13. Pipelines, except for fire risers, laid in channels, mines, cabins, tunnels, as well as in rooms with high humidity, should be isolated from moisture condensation.
5.4.14. The laying of an internal cold water supply system for year-round operation should be provided in rooms with an air temperature above 2 ° C in winter. When laying pipelines in rooms with an air temperature below 2 °C, measures must be taken to protect pipelines from freezing (electric heating or thermal support).
If it is possible to temporarily reduce the temperature in the room to 0 °C and below, as well as when laying pipes in the zone of influence of outside cold air (near external entrance doors and gates), thermal insulation of pipes should be provided.
5.4.15. Devices for air release should be provided at the highest points of pipelines of hot water supply systems. The release of air from the pipeline system is allowed through the water fittings located at the upper points of the system (upper floors).
Drainage devices should be provided at the lowest points of the piping systems, unless water fittings are provided at these points.
5.4.16. When designing hot water supply networks, measures should be taken to compensate for temperature changes in the length of pipes.
5.4.17. Thermal insulation should be provided for the supply and circulation pipelines of hot water supply systems, except for connections to water-folding devices.
5.4.18. Pressure losses in sections of pipelines of cold and hot water supply networks, including when combining risers into water supply units, should be determined taking into account the roughness of the pipe material and the viscosity of the water.

5.5. Calculation of the cold water supply network
5.5.1. Hydraulic calculation of cold water pipeline networks must be carried out according to the maximum second water flow. Hydraulic calculation of cold water pipelines includes: determination of estimated water flow rates, selection of diameters of supply pipelines, annular jumpers and risers, pressure losses and the establishment of a normalized free pressure at control points of water intake.
For groups of buildings, the preparation of hot water and / or the increase in water pressure for which is carried out in separate (or internal) pumping stations and heating points, the determination of the estimated water flow rates and the hydraulic calculation of pipelines should be carried out in accordance with these standards.
5.5.2. The networks of the combined economic and fire-fighting and industrial-fire-fighting water pipelines should be checked for the passage of the estimated water flow for fire extinguishing at the estimated maximum second flow rate for household and drinking and production needs. At the same time, the cost of water for the use of showers, washing floors, watering the territory is not taken into account.
Hydraulic calculation of water supply networks is carried out for design schemes of ring networks without excluding any sections of the network, risers or equipment.
Note. For residential areas, for the period of fire fighting and liquidation of an accident on the external water supply network, it is allowed not to provide water supply to the closed hot water supply system.

5.5.3. When calculating utility, drinking, industrial networks, including those combined with a fire water supply, it is necessary to provide the necessary water pressure at the devices located the highest and farthest from the input.
5.5.4. Hydraulic calculation of water supply networks fed by several inputs should be made taking into account the shutdown of one of them.
With two inputs, each of them must be designed for 100% water flow.
5.5.5. Pipe diameters of internal water supply networks should be taken based on the use of the maximum guaranteed water pressure in the external water supply network.
The diameters of the pipelines of the ring jumpers should be taken not less than the larger diameter of the water riser.
5.5.6. The speed of water movement in the pipelines of internal networks should not exceed 1.5 m / s with a check of the throughput of pipelines of the combined economic-fire and production-fire systems at a speed of 3 m / s.
The diameters of the pipelines of the water risers in the water assembly should be selected according to the calculated maximum second water flow in the riser with a coefficient of 0.7.

5.6. Calculation of the hot water plumbing network
5.6.1. Hydraulic calculation of hot water circulating systems should be made for two modes of water supply (drainage and circulation):
a) determination of the estimated second water flow rates, selection of the diameters of the supply pipelines and determination of pressure losses along the supply pipelines in the drawdown mode;
b) selection of diameters of circulation pipelines, determination of the required circulation flow rate per second and linkage of pressure losses in individual rings of hot water supply networks in circulation mode.
5.6.2. The selection of the diameters of the supply pipelines of hot water supply networks in the drawdown mode should be carried out at the calculated maximum second flow rate of hot water with a coefficient that takes into account the residual circulation flow in the drawdown mode. The coefficient should be taken:
1.1 - for water heaters and sections of supply pipelines of hot water supply networks to the last water-folding unit of the main settlement branch;
1.0 - for other sections of the supply pipelines.
In the mode of minimum water withdrawal during the night period, the value of the circulation flow of hot water should be taken equal to 30 - 40% of the calculated average second flow of water.
5.6.3. The diameters of the standpipes in the standpipe should be selected according to the value of the calculated maximum second water flow in the riser with a coefficient of 0.7, provided that the length of the ring jumpers from the place of the last water withdrawal (in the direction of water flow) of one standpipe to a similar point of another standpipe does not exceed the length of the standpipe itself.
The diameters of the ring jumpers should be taken not less than the maximum diameter of the standpipe.
5.6.4. In networks of open hot water intake from pipelines of the heating network, pressure losses should be determined taking into account the pressure in the return pipeline of the heating network.
5.6.5. The circulation flow in hot water networks should be determined:
when distributing the circulation flow in proportion to heat losses (due to the variable resistance of the circulation risers) - by the sum of the heat losses of the supply pipelines and the temperature difference from the heater outlet to the water withdrawal point.
Changing the resistance of circulation risers must be done by selecting their diameter, using balancing valves, automatic control devices and throttling diaphragms (diameter not less than 10 mm).
5.6.6. If there is an annular jumper between the water risers, when calculating the heat losses of the water assembly, the heat losses of the pipelines of the annular jumper are taken into account.
5.6.7. Pressure losses in the circulation mode in individual branches of the hot water supply system (including circulation pipelines) should not differ for different branches by more than 10%.
5.6.8. The speed of movement of hot water in the pipelines of the hot water supply system of networks should not exceed 1.5 m / s.

Before sending an electronic application to the Ministry of Construction of Russia, please read the rules of operation of this interactive service set out below.

1. Electronic applications in the field of competence of the Ministry of Construction of Russia filled in in accordance with the attached form are accepted for consideration.

2. An electronic appeal may contain a statement, complaint, proposal or request.

3. Electronic appeals sent through the official Internet portal of the Ministry of Construction of Russia are submitted for consideration to the department for working with citizens' appeals. The Ministry provides an objective, comprehensive and timely consideration of applications. Consideration of electronic appeals is free of charge.

4. In accordance with the Federal Law of May 2, 2006 N 59-FZ "On the procedure for considering applications from citizens of the Russian Federation", electronic applications are registered within three days and sent, depending on the content, to the structural divisions of the Ministry. The appeal is considered within 30 days from the date of registration. An electronic appeal containing issues, the solution of which is not within the competence of the Ministry of Construction of Russia, is sent within seven days from the date of registration to the appropriate body or the appropriate official, whose competence includes resolving the issues raised in the appeal, with notification of this to the citizen who sent the appeal.

5. An electronic appeal is not considered when:
- the absence of the name and surname of the applicant;
- indication of an incomplete or inaccurate postal address;
- the presence of obscene or offensive expressions in the text;
- the presence in the text of a threat to the life, health and property of an official, as well as members of his family;
- using a non-Cyrillic keyboard layout or only capital letters when typing;
- the absence of punctuation marks in the text, the presence of incomprehensible abbreviations;
- the presence in the text of a question to which the applicant has already received a written answer on the merits in connection with previously sent appeals.

6. The response to the applicant of the appeal is sent to the postal address specified when filling out the form.

7. When considering an appeal, it is not allowed to disclose the information contained in the appeal, as well as information relating to the private life of a citizen, without his consent. Information about the personal data of applicants is stored and processed in compliance with the requirements of Russian legislation on personal data.

8. Appeals received through the site are summarized and submitted to the leadership of the Ministry for information. The answers to the most frequently asked questions are periodically published in the sections "for residents" and "for specialists"

SP 50.13330.2012 Thermal protection of buildings. Updated version of SNiP 23-02-2003 (with Amendment No. 1)

SP 60.13330.2012 Heating, ventilation and air conditioning Updated version of SNiP 41-01-2003

SP 70.13330.2012 Bearing and enclosing structures. Updated version of SNiP 3.03.01-87 (with Amendments No. 1, 3)

SP 78.13330.2012 Highways. Updated edition of SNiP 3.06.03-85 (with Amendment No. 1)

• SP 4.13130.2013 Fire protection systems. Limiting the spread of fire at protected facilities. Requirements for space-planning and design solutions
• SP 6.13130.2013 Fire protection systems. Electrical equipment. fire safety requirements
• SP 7.13130.2013 Heating, ventilation and air conditioning. fire safety requirements

• SP 165.1325800.2014 Engineering and technical measures for civil defense. Updated version of SNiP 2.01.51-90 (with Amendment No. 1)
• SP 223.1326000.2014 Railway telecommunications Rules for the use of station radio communications and two-way park communications
• SP 224.1326000.2014 Railway traction power supply
• SP 225.1326000.2014 Station buildings, structures and devices
• SP 226.1326000.2014 Power supply of non-traction consumers Rules for design, construction and reconstruction

• Amendment No. 1 to SP 108.13330.2012 Enterprises, buildings and structures for the storage and processing of grain Updated version of SNiP 2.10.05-85
• Amendment No. 1 to SP 109.13330.2012 Refrigerators Updated version of SNiP 2.11.02-87
• Amendment No. 1 to SP 113.13330.2012 Car parking Updated version of SNiP 21-02-99*
• Amendment No. 1 to SP 13.13130.2009 Nuclear power plants Fire safety requirements
• Amendment No. 1 to SP 14.13330.2014 Construction in seismic areas Updated version of SNiP II-7-81*
• Amendment No. 1 to SP 141.13330.2012 Social service institutions for people with limited mobility Rules for calculating and placing
• Amendment No. 1 to SP 142.13330.2012 Buildings of resocialization centers Design Rules Updated version of SP 35-107-2003
• Amendment No. 1 to SP 143.13330.2012 Premises for leisure and physical culture and recreation activities of people with limited mobility Design rules
• Amendment No. 1 to SP 144.13330.2012 Centers and departments of geriatric care Design rules
• Amendment No. 1 to SP 145.13330.2012 Boarding houses Design rules
• Amendment No. 1 to SP 146.13330.2012 Gerontological centers, nursing homes, hospices Design rules
• Amendment No. 1 to SP 147.13330.2012 Buildings for social service institutions Reconstruction rules
• Amendment No. 1 to SP 148.13330.2012 Premises in institutions of social and medical care Design rules
• Amendment No. 1 to SP 149.13330.2012 Rehabilitation centers for children and adolescents with disabilities Design rules
• Amendment No. 1 to SP 150.13330.2012 Boarding houses for disabled children Design rules
• Amendment No. 1 to SP 19.13330.2011 Master plans for agricultural enterprises Updated version of SNiP II-97-76*
• Amendment No. 1 to SP 28.13330.2012 Corrosion protection of building structures Updated version of SNiP 2.03.11-85
• Amendment No. 1 to SP 31.13330.2012 Water supply External networks and structures Updated version of SNiP 2.04.02-84
• Amendment No. 1 to SP 59.13330.2012 Accessibility of buildings and structures for people with limited mobility Updated version of SNiP 35-01-2001
• Amendment No. 1 to SP 63.13330.2012 Concrete and reinforced concrete structures. Basic provisions Updated edition of SNiP 52-01-2003
• Amendment No. 1 to SP 90.13330.2012 Thermal power plants Updated version of SNiP II-58-75
• Amendment No. 1 to SP 92.13330.2012 Warehouses for dry mineral fertilizers and chemical plant protection products Updated version of SNiP II-108-78
• Amendment No. 2 to SP 31.13330.2012 Water supply External networks and structures Updated version of SNiP 2.04.02-84
• Amendment No. 2 to SP 63.13330.2012 Concrete and reinforced concrete structures Basic provisions Updated version of SNiP 52-01-2003
• SP 230.1325800.2015 Enclosing structures for buildings Characteristics of thermal inhomogeneities
• SP 231.1311500.2015 Development of oil and gas fields Fire safety requirements
• SP 232.1311500.2015 Fire protection of enterprises General requirements
• SP 233.1326000.2015 Railway transport infrastructure High-precision coordinate system
• SP 234.1326000.2015 Railway automation and telemechanics Construction and installation rules
• SP 235.1326000.2015 Railway automation and telemechanics Design rules
• SP 236.1326000.2015 Acceptance and commissioning of railway infrastructure facilities
• SP 237.1326000.2015 Railway transport infrastructure General requirements
• SP 238.1326000.2015 Railway track
• SP 239.1326000.2015 Passenger information systems, warnings for workers on the tracks and park communication in railway transport
• SP 240.1311500.2015 Liquefied natural gas storage facilities Fire safety requirements
• SP 241.1311500.2015 Fire protection systems Automatic water fire extinguishing installations for high-rise rack warehouses Codes and rules for designing
• SP 242.1325800.2015 Buildings of territorial bodies of the Pension Fund of the Russian Federation Design rules
• SP 243.1326000.2015 Design and construction of highways with low traffic intensity
• SP 244.1326000.2015 Cable lines of railway infrastructure facilities
• SP 245.1325800.2015 Corrosion protection of linear facilities and structures in the oil and gas complex Rules for the production and acceptance of work

• SP 20.13330.2016 Loads and impacts. Updated version of SNiP 2.01.07-85* (with Amendment No. 1)
• SP 22.13330.2016 Foundations of buildings and structures. Updated version of SNiP 2.02.01-83*
• SP 246.1325800.2016 Regulation on architectural supervision of the construction of buildings and structures
• SP 264.1325800.2016 Light masking of settlements and objects of the national economy. Updated version of SNiP 2.01.53-84
• SP 30.13330.2016 Internal water supply and sewerage of buildings. Updated version of SNiP 2.04.01-85* (as amended)
• SP 42.13330.2016 Urban planning. Planning and development of urban and rural settlements. Updated edition of SNiP 2.07.01-89*
• SP 47.13330.2016 Engineering surveys for construction. Basic provisions. Updated edition of SNiP 11-02-96
• SP 52.13330.2016 Natural and artificial lighting. Updated edition of SNiP 23-05-95*
• SP 60.13330.2016 Heating, ventilation and air conditioning. Updated edition of SNiP 41-01-2003
• SP 72.13330.2016 Protection of building structures and facilities against corrosion. Updated version of SNiP 3.04.03-85
• SP 73.13330.2016 Internal sanitary systems of buildings Updated version of SNiP 3.05.01-85
• SP 76.13330.2016 Electrical devices. Updated edition of SNiP 3.05.06-85
• SP 93.13330.2016 Protective structures of civil defense in underground mine workings. Updated version of SNiP 2.01.54-84
• SP 94.13330.2016 Adaptation of public utility facilities for the sanitization of people, special treatment of clothing and rolling stock of vehicles. Updated version of SNiP 2.01.57-85
• SP 95.13330.2016 Concrete and reinforced concrete structures made of dense silicate concrete. Updated version of SNiP 2.03.02-86
• SP 96.13330.2016 "SNiP 2.03.03-85 Reinforced cement structures"

• SP 127.13330.2017 Landfills for neutralization and disposal of toxic industrial waste. Basic provisions for design. SNiP 2.01.28-85
• SP 16.13330.2017 "Steel structures. Updated version of SNiP II-23-81*" (as amended, with Amendment No. 1)
• SP 17.13330.2017 Roofs. Updated version of SNiP II-26-76
• SP 382.1325800.2017 Wooden structures glued on glued rods. Calculation methods
• SP 71.13330.2017 Insulating and finishing coatings. Updated version of SNiP 3.04.01-87 (with Amendment No. 1)

• SP 32.13330.2018 Sewerage. External networks and structures. SNiP 2.04.03-85
• SP 383.1325800.2018 Sports and recreation complexes. Design rules
• SP 384.1325800.2018 Construction tent structures. Design rules
• SP 385.1325800.2018 Protection of buildings and structures from progressive collapse. Design rules. Key points
• SP 386.1325800.2018 Translucent structures made of polycarbonate. Design rules
• SP 388.1311500.2018 Religious cultural heritage sites. fire safety requirements
• SP 390.1325800.2018 Buildings and facilities of adaptive sports schools and adaptive sports centers. Design rules
• SP 392.1325800.2018 Main and field pipelines for oil and gas. Executive documentation for construction. Forms and requirements for maintenance and execution
• SP 407.1325800.2018 Earthworks. Rules for production by hydromechanization
• SP 408.1325800.2018 Detailed seismic zoning and seismic microzoning for territorial planning

• SNiPs
  • Section 1. Organizational and methodological normative documents
    • 01. System of normative documents in construction
      • SNiP 1.01.01-82* System of regulatory documents in construction Basic provisions (with Amendments No. 1, 2)
    • 02. Organization, methodology and economics of design and engineering surveys
      • SNiP 1.02.01-85 Instructions on the composition, procedure for developing, coordinating and approving design estimates for the construction of enterprises, buildings and structures (with Amendments No. 1, 2, 3)
      • SNiP 1.02.03-83 Instructions for the design of facilities for construction abroad
      • SNiP 1.02.07-87 Engineering surveys for construction
    • 03. Organization of construction. Construction management
    • 04. Standards for the duration of design and construction
      • SNiP 1.04.03-85 Standards for the duration of construction and groundwork in the construction of enterprises of buildings and structures part 1-1
      • SNiP 1.04.03-85 Standards for the duration of construction and groundwork in the construction of enterprises of buildings and structures part 1-2
      • SNiP 1.04.03-85 Standards for the duration of construction and groundwork in the construction of enterprises of buildings and structures, part 2
    • 05. Economics of construction
      • SNiP 1.05.03-87 Standards for groundwork in housing construction, taking into account complex development
    • 06. Regulations on organizations and officials
      • SNiP 1.06.04-85 Regulation on the chief engineer (chief architect) of the project
      • SNiP 1.06.05-85 Regulations on designer supervision of design organizations for the construction of enterprises, buildings and structures (as amended)
    • 10. Standardization, regulation, certification
      • SNiP 10-01-2003 System of regulatory documents in construction Basic provisions
      • SNiP 10-01-94 System of regulatory documents in construction Basic provisions (with Amendments No. 1, 2)
    • 11. Engineering survey for construction and design
      • SNiP 11-01-95 Instructions on the procedure for the development, approval, approval and composition of project documentation for the construction of enterprises, buildings and structures
      • SNiP 11-02-96 Engineering surveys for construction
      • SNiP 11-03-2001 Standard project documentation
      • SNiP 11-04-2003 Instructions on the procedure for the development, approval, examination and approval of urban planning documentation
    • 12. Production
      • SNiP 12-01-2004 Organization of construction
      • SNiP 12-03-2001 Occupational safety in construction. Part 1. General requirements
      • SNiP 12-03-99 Labor safety in construction. Part 1. General requirements (With Amendment No. 1)
      • SNiP 12-04-2002 Occupational safety in construction. Part 2. Construction production
    • 13. Operation
    • 14. Urban cadastre
      • SNiP 14-01-96 Basic provisions for the creation and maintenance of the state urban cadastre of the Russian Federation
    • 15. Architectural and urban planning activities
    • SNiP I-2 Construction terminology
  • Section 2. General technical regulations
    • 01. General design standards
      • SNiP 2.01.01-82 Construction climatology and geophysics
      • SNiP 2.01.02-85* Fire regulations
      • SNiP 2.01.07-85* Loads and impacts (with Amendments No. 1, 2)
      • SNiP 2.01.09-91 Buildings and structures on undermined territories and planting soils
      • SNiP 2.01.14-83 Determination of calculated hydrological characteristics
      • SNiP 2.01.15-90 Engineering protection of territories of buildings and structures from dangerous geological processes. Basic design provisions.
      • SNiP 2.01.28-85 Landfills for the neutralization and disposal of toxic industrial waste Basic design provisions
      • SNiP 2.01.51-90 Engineering and technical measures of civil defense
      • SNiP 2.01.53-84 Light masking of settlements and objects of the national economy
      • SNiP 2.01.54-84 Protective structures of civil defense in underground mine workings
      • SNiP 2.01.55-85 Objects of the national economy in underground mine workings
      • SNiP 2.01.57-85 Adaptation of public utility facilities for sanitizing people, special treatment of rolling stock of vehicles
    • 02. Bases and foundations
      • SNiP 2.02.01-83* Foundations of buildings and structures
      • SNiP 2.02.02-85* Foundations of hydraulic structures (with Amendment No. 1)
      • SNiP 2.02.03-85 Pile foundations
      • SNiP 2.02.04-88 Bases and foundations on permafrost soils
      • SNiP 2.02.05-87 Foundations of machines with dynamic loads
    • 03. Building structures
      • SNiP 2.03.01-84* Concrete and reinforced concrete structures (with Amendments No. 1, 2)
      • SNiP 2.03.02-86 Concrete and reinforced concrete structures made of dense silicate concrete
      • SNiP 2.03.03-85 Reinforced cement structures
      • SNiP 2.03.04-84 Concrete and reinforced concrete structures designed to operate under high and high temperatures
      • SNiP 2.03.06-85 Aluminum structures
      • SNiP 2.03.09-85 Asbestos-cement structures
      • SNiP 2.03.11-85 Corrosion protection of building structures
      • SNiP 2.03.13-88 Floors
    • 04. Engineering equipment of buildings and structures. External networks
      • SNiP 2.04.01-85* Internal water supply and sewerage of buildings
      • SNiP 2.04.02-84 (as amended 1 1986, amendment 2000) Water supply. Outdoor networks and facilities
      • SNiP 2.04.03-85 Sewerage. External networks and structures (with Amendment No. 1)
      • SNiP 2.04.05-91 Heating, ventilation and air conditioning (with Amendments No. 1, 2, 3)
      • SNiP 2.04.07-86 Heating networks
      • SNiP 2.04.08-87* Gas ​​supply (with Amendments 1, 2, 3, 4)
      • SNiP 2.04.09-84 (as amended 1 1997) Fire automation of buildings and structures
      • SNiP 2.04.12-86 Strength calculation of steel pipelines
      • SNiP 2.04.14-88 Thermal insulation of equipment and pipelines
    • 05. Transport facilities
      • SNiP 2.05.02-85 Highways
      • SNiP 2.05.03-84* Bridges and pipes.
      • SNiP 2.05.06-85 (2000) Main pipelines
      • SNiP 2.05.07-91 (1996, amended 1 1996) Industrial transport
      • SNiP 2.05.09-90 Tram and trolleybus lines
      • SNiP 2.05.11-83 (1984) On-farm roads in collective farms, state farms and other agricultural enterprises and organizations.
      • SNiP 2.05.13-90 Oil product pipelines laid on the territory of cities and other settlements
    • 06. Hydrotechnical and energy facilities, reclamation systems and facilities
      • SNiP 2.06.01-86 (1988) Hydraulic structures. Basic design provisions
      • SNiP 2.06.03-85 Land reclamation systems and structures.
      • SNiP 2.06.04-82* Loads and impacts on hydraulic structures (wave, ice and ships).
      • SNiP 2.06.05-84* Dams made of soil materials.
      • SNiP 2.06.06-85 (1987) Concrete and reinforced concrete dams.
      • SNiP 2.06.07-87 Retaining walls, shipping locks, fish passage and fish protection structures.
      • SNiP 2.06.08-87 Concrete and reinforced concrete structures of hydraulic structures.
      • SNiP 2.06.09-84 Hydraulic tunnels (instead of SN 238-73)
      • SNiP 2.06.14-85 (1989) Protection of mine workings from underground and surface waters
      • SNiP 2.06.15-85 Engineering protection of the territory from flooding and flooding
    • 07. Planning and development of settlements
      • SNiP 2.07.01-89* Urban planning. Planning and development of urban and rural settlements
    • 08. Residential and public buildings
      • SNiP 2.08.01-89 Residential buildings
      • SNiP 2.08.02-89 Public buildings and structures
    • 09. Industrial enterprises, industrial buildings and structures, auxiliary buildings. inventory buildings
      • SNiP 2.09.02-85 Industrial buildings
      • SNiP 2.09.03-85 Constructions of industrial enterprises.
      • SNiP 2.09.04-87 (2000) Administrative and service buildings
    • 10. Agricultural enterprises, buildings and structures
      • SNiP 2.10.02-84 (as amended 1 2000) Buildings and premises for processing and storage of agricultural products
      • SNiP 2.10.03-84 (as amended 1 2000) Livestock, poultry and fur-breeding buildings and premises
      • SNiP 2.10.04-85 (as amended 1 2000) Greenhouses and greenhouses
      • SNiP 2.10.05-85 (1988, amended 1 2000) Enterprises, buildings and facilities for grain storage and processing.
    • 11. Warehouses
      • SNiP 2.11.01-85* Warehouse buildings
      • SNiP 2.11.02-87 (as amended 1 2000) Refrigerators
      • SNiP 2.11.03-93 Warehouses for oil and oil products. Fire regulations
      • SNiP 2.11.04-85 Underground storage of oil, oil products and liquefied gases
      • SNiP 2.11.06-91 Warehouses for timber products. Fire safety design standards (instead of SN 473-75)
    • 12. Norms of land acquisition
    • 20. Basic provisions for the reliability of building structures
    • 21. Fire safety
      • SNiP 21-01-97* Fire safety of buildings and structures (with Amendments No. 1, 2)
      • SNiP 21-02-99 Car parking
      • SNiP 21-03-2003 Warehouses of timber materials. Fire regulations
    • 22. Protection from hazardous geophysical impacts
      • SNiP 22-01-95 Geophysics of natural hazards
      • SNiP 22-02-2003 Engineering protection of territories, buildings and structures from dangerous geological processes. Key points
    • 23. Indoor climate and protection from harmful influences
      • SNiP 23-01-99* Building climatology (with Amendment No. 1)
      • SNiP 23-02-2003 Thermal protection of buildings
      • SNiP 23-03-2003 Noise protection
      • SNiP 23-05-95 Natural and artificial lighting (with Amendment No. 1)
    • 24. Dimensional interchangeability and compatibility
    • SNiP II-108-78 Warehouses of dry mineral fertilizers and chemical plant protection products
    • SNiP II-11-77* Protective structures of civil defense
    • SNiP II-12-77 Noise protection
    • SNiP II-22-81 (1995) Stone and reinforced masonry structures
    • SNiP II-23-81* Steel structures (with Amendments)
    • SNiP II-25-80 (1988) Wooden structures
    • SNiP II-26-76 Roofs (as amended)
    • SNiP II-3-79* Construction heat engineering (with Amendments N 1-4)
    • SNiP II-35-76* Boiler plants
    • SNiP II-44-78 Railway and road tunnels
    • SNiP II-58-75 Thermal power plants
    • SNiP II-7-81* Construction in seismic areas
    • SNiP II-89-80* Master plans for industrial enterprises
    • SNiP II-90-81 Industrial buildings of industrial enterprises
    • SNiP II-94-80 Underground mine workings
    • SNiP II-97-76 Master plans for agricultural enterprises
    • SNiP II-A.3-62 Classification of buildings and structures. Basic design provisions
    • SNiP II-B.8-71 Floors. Design standards
    • SNiP II-K.2-62 Planning and development of populated areas. Design standards
  • Section 3. Normative documents on urban planning, buildings and structures
    • 01. General rules of construction production
      • SNiP 3.01.01-85 * Organization of construction production (with Amendments No. 1, 2)
      • SNiP 3.01.03-84 Geodetic works in construction
      • SNiP 3.01.04-87 Acceptance for operation of completed facilities
      • SNiP 3.01.09-84 Acceptance into operation of completed protective structures and their maintenance in peacetime (instead of SN 464-74)
    • 02. Bases and foundations
      • SNiP 3.02.01-87 Earthworks, foundations and foundations
      • SNiP 3.02.03-84 Underground mine workings
    • 03. Building structures
      • SNiP 3.03.01-87 Bearing and enclosing structures
    • 04. Protective, insulating and finishing coatings
      • SNiP 3.04.01-87 Insulating and finishing coatings
      • SNiP 3.04.03-85 Protection of building structures and facilities against corrosion
    • 05. Engineering and technological equipment and networks
      • SNiP 3.05.01-85 Internal sanitary systems (with Amendment No. 1)
      • SNiP 3.05.02-88* Gas ​​supply (with Amendments 1 and 2)
      • SNiP 3.05.03-85 Heating networks
      • SNiP 3.05.04-85* External networks and facilities for water supply and sewerage
      • SNiP 3.05.05-84 Technological equipment and process pipelines
      • SNiP 3.05.06-85 Electrical devices
      • SNiP 3.05.07-85 (as amended 1 1990) Automation systems
    • 06. Transport facilities
      • SNiP 3.06.03-85 Highways
      • SNiP 3.06.04-91 Bridges and pipes
      • SNiP 3.06.07-86 Bridges and pipes Inspection and testing rules
    • 07. Hydrotechnical and energy facilities, reclamation systems and facilities
      • SNiP 3.07.01-85 River hydraulic structures
      • SNiP 3.07.02-87 Hydraulic marine and river transport facilities
      • SNiP 3.07.03-85 (as amended 1 1991) Land reclamation systems and structures
    • 08. Mechanization of construction production
      • SNiP 3.08.01-85 Mechanization of building production. Rail tracks of tower cranes
    • 09. Manufacture of building structures, products and materials
      • SNiP 3.09.01-85 (as amended 1 1988, 2 1994) Manufacture of prefabricated reinforced concrete structures and products
    • 30. Urban planning
      • SNiP 30-02-97* Planning and development of territories of horticultural dacha associations of citizens, buildings and structures (with Amendment No. 1)
    • 31. Residential, public and industrial buildings and structures
      • SNiP 31-01-2003 Residential multi-apartment buildings
      • SNiP 31-02-2001 Residential single-apartment houses
      • SNiP 31-03-2001 Industrial buildings
      • SNiP 31-04-2001 Warehouse buildings
      • SNiP 31-05-2003 Public buildings for administrative purposes
      • SNiP 31-06-2009 Public buildings and structures
    • 32. Transport facilities
      • SNiP 32-01-95 1520 mm gauge railways
      • SNiP 32-02-2003 Subways
      • SNiP 32-03-96 Aerodromes
      • SNiP 32-04-97 Railway and road tunnels
    • 33. Hydrotechnical and reclamation facilities
      • SNiP 33-01-2003 Hydraulic structures. Key points
    • 34. Main and field pipelines
      • SNiP 34-02-99 Underground storage facilities for gas, oil and products of their processing
    • 35. Providing an accessible living environment for the disabled and other people with limited mobility
      • SNiP 35-01-2001 Accessibility of buildings and structures for people with limited mobility
    • SNiP III-10-75 Landscaping
    • SNiP III-18-75 (as amended in 1978, 1985, 1995) Metal structures
    • SNiP III-24-75 Industrial furnaces and brick pipes
    • SNiP III-39-76 Tramways
    • SNiP III-4-80* Construction Safety (With Amendments 1-5)
    • SNiP III-41-76 Contact networks of electrified transport
    • SNiP III-42-80 (as amended in 1983, 1987, 1997) Main pipelines
    • SNiP III-44-77 (as amended in 1981) Railway, road and hydraulic tunnels. Subways
    • SNiP III-46-79 Aerodromes
    • SNiP III-B.5-62* Metal structures. Rules for manufacturing, installation and acceptance
  • Section 4. Regulatory documents for engineering equipment of buildings and structures and external networks
    • 40. Water supply and sewerage
    • 41. Heat supply, heating, ventilation and air conditioning
      • SNiP 41-01-2003 Heating, ventilation and air conditioning
      • SNiP 41-02-2003 Heating networks
      • SNiP 41-03-2003 Thermal insulation of equipment and pipelines. (instead of SNiP 2.04.14-88 (1998))
    • 42. Gas supply
      • SNiP 42-01-2002 Gas distribution systems
    • SNiP 4.02-91 Basic estimated norms and prices. Collections of estimated norms and prices for construction work
    • SNiP 4.03-91 Collection of estimated norms and prices for the operation of construction machines
    • SNiP 4.04-91 Collection of estimated prices for materials, products and structures
    • SNiP 4.05-91 General provisions for the application of estimated norms and prices for construction work
    • SNiP 4.06-91 Collections of prices for equipment installation
    • SNiP 4.07-91 Collection of estimated norms of additional costs in the production of construction and installation works in winter
    • SNiP 4.09-91 Collection of estimated cost norms for the construction of temporary buildings and structures
    • SNiP IV-13-84 Collections of estimated costs for equipment and inventory of public and administrative buildings
    • SNiP IV-2-82 Collection of elemental estimated norms for building structures and work
  • Section 5. Regulatory documents for building structures and products
    • 01. Material consumption rates
      • SNiP 5.01.01-82 Consumption rates for materials, products and pipes per 1 million rubles. estimated cost of construction and installation works. Communal construction. Consumer services for the population
      • SNiP 5.01.02-83 Consumption rates for materials, products and pipes per 1 million rubles. estimated cost of construction and installation works. microbiological industry. Medical industry. Geology and exploration of mineral resources. Film industry (instead of SN 501-77, SN 520-79,
      • SNiP 5.01.03-85 Consumption rates for materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for gas industry facilities (instead of SN 505-78, SN 526-80 in terms of pipe consumption)
      • SNiP 5.01.04-84 Consumption rates of materials, products and pipes per 1 million rubles. estimated cost of construction and installation works. Chemical industry. Petrochemical industry (instead of SN 424-78, SN 526-80)
      • SNiP 5.01.05-85 Consumption rates for materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for water management facilities
      • SNiP 5.01.06-86 Consumption rates for materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for electric power facilities
      • SNiP 5.01.07-84 Consumption rates for materials, products and pipes per 1 million rubles. the estimated cost of construction and installation works for the facilities of the oil production, oil refining industry and transportation of oil and oil products (instead of SN 504-78, SN-505-78, SN 526
      • SNiP 5.01.08-84 Consumption rates for materials, products and pipes per 1 million rubles. estimated cost of construction and installation works. Building materials industry, construction, building structure and parts industry
      • SNiP 5.01.09-84 Consumption rates for materials, products and pipes per 1 million rubles. estimated cost of construction and installation works. Trade and public catering. Printing industry. River transport. Meat and dairy industry. Flour and cereal
      • SNiP 5.01.10-84 Consumption rates of materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for the forestry and woodworking, pulp and paper industries and forestry (instead of SN 501-77, SN 415-78, SN 526-80
      • SNiP 5.01.11-85 Consumption rates of materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for ferrous metallurgy facilities
      • SNiP 5.01.12-85 Consumption rates of materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for engineering facilities
      • SNiP 5.01.13-85 Consumption rates for materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for light, food and fish industries
      • SNiP 5.01.14-85 Consumption rates of materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for non-ferrous metallurgy, coal, peat and shale industries
      • SNiP 5.01.16-85 Consumption rates of materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for agricultural construction projects
      • SNiP 5.01.17-85 Consumption rates of materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for railway, air, sea, road transport, construction of roads and subways
      • SNiP 5.01.18-86 Regulations on the production rationing of the consumption of materials in construction
      • SNiP 5.01.23-83 Typical consumption rates of cement for the preparation of concrete, prefabricated and monolithic concrete, reinforced concrete products and structures
    • 02. Norms of need for construction equipment, tools and mechanisms
      • SNiP 5.02.02-86 Standards for the need for construction tools
    • 03. Rationing and payment for design and survey work
    • 04. Rationing and wages in construction
    • 50. Foundations and foundations of buildings and structures
    • 51. Stone and reinforced masonry structures
    • 52. Reinforced concrete and concrete structures
      • SNiP 52-01-2003 Concrete and reinforced concrete structures. Key points
    • 53. Metal structures
    • 54. Wooden structures
    • 55. Constructions from other materials
    • 56. Windows, doors, gates and devices for them
  • Section 8. Normative documents on economics
    • 82. Material and fuel and energy resources
      • SNiP 82-01-95 Development and application of norms and standards for the consumption of material resources in construction. Key points
      • SNiP 82-02-95 Federal (standard) elemental norms for the consumption of cement in the manufacture of concrete and reinforced concrete products and structures

SP 30.13330.2012 Internal water supply and sewerage of buildings Updated version of SNiP 2.04.01-85*

SET OF RULES

SP 30.13330.2012 Internal water supply and sewerage of buildings.
Domestic water supply and drainage systems in buildings
Updated edition

Introduction date 2013-01-01

Status: canceled in part from June 17, 2017,
except for the points
included in the List of National Standards
and codes of practice

Reference.

from June 17, 2017, by order of the Ministry of Construction and Housing and Communal Services of the Russian Federation dated December 16, 2016 N 951 / pr, an updated edition came into force.

FOREWORD

The goals and principles of standardization in the Russian Federation are established by the Federal Law of December 27, 2002 No. 184-FZ "On Technical Regulation", and the development rules - by the Decree of the Government of the Russian Federation of November 19, 2008 No. 858 "On the Procedure for the Development and Approval of Codes of Rules ".

About the set of rules

1 PERFORMERS - JSC "SantekhNIIproekt", JSC "Research Center "Construction"

2 INTRODUCED by the Technical Committee for Standardization TC 465 "Construction"

3 PREPARED for approval by the Department of Architecture, Building and Urban Policy

4 APPROVED by Order of the Ministry of Regional Development of the Russian Federation (Ministry of Regional Development of Russia) dated December 29, 2011 No. 626 and entered into force on January 01, 2013.

5 REGISTERED by the Federal Agency for Technical Regulation and Metrology (Rosstandart). Revision of SP 30.13330.2010 "Internal water supply and sewerage of buildings"

Information about changes to this set of rules is published in the annually published information index "National Standards", and the text of changes and amendments - in the monthly published information indexes "National Standards". In case of revision (replacement) or cancellation of this set of rules, a corresponding notice will be published in the monthly published information index "National Standards". Relevant information, notification and texts are also placed in the public information system - on the official website of the developer (Ministry of Regional Development of Russia) on the Internet

4.2 Hot water preparation should be provided in accordance with the norms for heat networks SP 124.13330. 4.3 In buildings of any purpose erected in sewered areas, internal water supply and sewerage systems should be provided. The quality of wastewater after treatment in local installations must comply with the technical conditions for receiving them in the external sewerage network and departmental standards. 4.4 In non-sewered areas of settlements, internal water supply systems with the installation of local apartment and / or collective systems for post-treatment of drinking water and sewerage systems with the installation of local treatment facilities should be provided in residential buildings with a height of more than two floors, hotels, nursing homes for the disabled and the elderly, hospitals, maternity hospitals, clinics, outpatient clinics, dispensaries, sanitary and epidemiological stations, sanatoriums, rest homes, boarding houses, sports and recreation institutions, preschool educational institutions, boarding schools, primary and secondary vocational education institutions, secondary schools, cinemas, club and leisure and entertainment institutions, catering establishments, sports facilities, baths and laundries. Notes: According to the design assignment, it is allowed to install internal water supply and sewerage systems in non-sewered areas of settlements for one- and two-story residential buildings. In industrial and auxiliary buildings, internal water supply and sewerage systems may not be provided in cases where the enterprise does not have a centralized water supply system and the number of employees is no more than 25 people. in shift. In buildings equipped with internal domestic drinking or industrial water supply, it is necessary to provide an internal sewerage system. 4.5 In non-sewered areas of settlements, in agreement with the local authorities of Rospotrebnadzor, it is allowed to equip the following buildings with backlash closets or dry closets (without water supply inlets): production and auxiliary buildings of industrial enterprises with the number of employees up to 25 people per shift; residential buildings with a height of 1 - 2 floors; hostels with a height of 1 - 2 floors for no more than 50 people; objects of physical culture and sports and leisure purposes for no more than 240 seats, used only in the summer; club and leisure-entertainment institutions; open planar sports facilities; catering establishments for no more than 25 seats. Notes: Backlash closets are allowed to be provided in buildings in I - III climatic regions. Methods for disposing of the contents of backlash closets and dry closets are determined by the project according to the specifications of local utilities. 4.6 The need for internal drains is established by the architectural and construction part of the project. 4.7 Pipes, fittings, equipment and materials used in the construction of internal systems of cold and hot water supply, sewerage and drains must comply with the requirements of these norms, national standards, sanitary and epidemiological norms and other documents approved in the prescribed manner. For the transportation and storage of drinking water, pipes, materials and anti-corrosion coatings that have passed the sanitary and epidemiological examination and have the appropriate permits and certificates for use in domestic and drinking water supply should be used. Determination of the estimated water and waste flows 4.8 For the hydraulic calculation of water pipelines and the selection of equipment, the following estimated hot and cold water flows should be used: daily water consumption (total, hot, cold), for the estimated time of water consumption, for which the average hourly consumption is set, m 3 / day; maximum hourly water consumption (total, hot, cold), m 3 / h; minimum hourly water consumption (general, hot, cold), m 3 / h; maximum second water consumption (total, hot, cold), l/s. Notes: 4.9 Estimated water consumption in cold water pipelines should be determined depending on: a) specific average hourly water consumption, l / h, related to one consumer or sanitary fixture; b) the type and total number of water consumers and / or the type and total number of sanitary appliances (for the water supply system as a whole or for individual sections of the design scheme of the water supply network). With an unknown number of sanitary appliances (plumbing points), it is allowed to take the number of appliances equal to the number of consumers. 4.10 Estimated water consumption in hot water pipelines should be determined: for the drawdown mode - similarly to 4.2 a), b) taking into account the residual circulation flow in the areas from the place of heating to the place of the first water withdrawal; for the circulation mode - with thermal-hydraulic calculation. 4.11 For risers of sewerage systems, the estimated flow rate is the maximum second flow rate of effluents from sanitary appliances connected to the riser, which does not cause a breakdown of hydraulic valves of any type of sanitary appliances (wastewater receivers). This flow rate should be determined as the sum of the calculated maximum second water flow rates of all sanitary appliances, determined from the application table and the calculated maximum second flow rate from the device with maximum drainage (as a rule, you should take the maximum second flow rate from the toilet flush tank equal to 1 .6 l/s). 4.12 For horizontal outlet pipelines of sewerage systems, the design flow should be considered the flow q sl, l / s, the value of which is calculated depending on the number of sanitary fixtures N connected to the calculated section of the pipeline, and the length of this section of the pipeline L, m, according to the formula where - the total maximum hourly water consumption in the design area, m 3 / h; K S- coefficient taken according to ; Estimated maximum wastewater flow, l / s, from a device with maximum drainage. Table 1. SP 30.13330.2012 Internal water supply and sewerage of buildings updated current edition Values K S depending on the number of devices N and the length of the outlet pipeline Branch (horizontal) pipeline length, m Note. The length of the outlet pipeline should be taken as the distance from the last riser in the calculated section to the nearest connection of the next riser or, in the absence of such connections, to the nearest sewer well. 5 Plumbing system 5.1 Water quality and temperature in the plumbing system 5.1.1 The quality of cold and hot water (sanitary and epidemiological indicators) supplied for household and drinking needs must comply with SanPiN 2.1.4.1074 and SanPiN 2.1.4.2496. The quality of water supplied for production needs is determined by the design assignment (technological requirements). 5.1.2 The temperature of hot water in the places of water intake must comply with the requirements of SanPiN 2.1.4.1074 and SanPiN 2.1.4.2496 and, regardless of the heat supply system used, must not be lower than 60 ° C and not higher than 75 ° C. Note. The requirement of this paragraph does not apply to the places of water intake for production (technological) needs, as well as to the places of water intake for the needs of the service personnel of these institutions. 5.1.3 In the premises of preschool institutions, the temperature of hot water supplied to the water fittings of showers and washbasins should not exceed 37 ° C. 5.1.4 The choice of hot water preparation scheme and, if necessary, its treatment should be carried out in accordance with SP 124.13330. 5.1.5 In hot water supply systems of public catering establishments and others, whose consumers need water with a temperature higher than that specified in, additional water heating in local water heaters should be provided. 5.1.6 In settlements and enterprises, in order to save drinking quality water, with a feasibility study and in agreement with the authorities of Rospotrebnadzor, it is allowed to supply non-potable water to urinals and toilet flush tanks. 5.2 Cold and hot water systems 5.2.1 Cold water supply systems can be centralized or local. The choice of the internal water supply system of the building (centralized or local) should be made depending on the sanitary and hygienic and fire safety requirements, the requirements of the production technology, and also taking into account the accepted external water supply scheme. The hot water supply system should be taken, as a rule, with a closed water intake with the preparation of hot water in heat exchangers and water heaters (water-water, gas, electric, solar, etc.). According to the design assignment, it is allowed to provide in the building a hot water supply system with an open (directly from the heating network) water intake. 5.2.2 In buildings (structures), depending on their purpose, internal water supply systems should be provided: The fire water supply system in buildings with domestic drinking or industrial water supply systems should, as a rule, be combined with one of them, provided that the requirements of SP 10.13130 ​​and this set of rules are met: household and drinking water supply with fire-fighting water supply (household and fire-fighting water supply); industrial water supply with fire-fighting water supply (industrial fire-fighting water supply); networks of cold and hot domestic and drinking water supply systems are not allowed to be combined with networks of water supply systems that supply water of non-potable quality. 5.2.3 Internal water supply systems (domestic, hot water, industrial, fire-fighting) include: entrances to buildings, cold and hot water consumption metering units, distribution network, risers, connections to sanitary appliances and technological installations, water folding, mixing, shut-off and control valves . Depending on local conditions, production technology, it is allowed to provide spare (accumulator) and control tanks in the internal water supply system. 5.2.4 The choice of a scheme for heating and treating water for centralized hot water supply systems should be provided in accordance with SP 124.13330. 5.2.5 In systems of centralized hot water supply, if it is necessary to maintain the water temperature at the points of water intake not lower than that specified in, a hot water circulation system should be provided during the period when there is no water intake. In hot water supply systems with time-regulated consumption of hot water, hot water circulation may not be provided if its temperature at the points of water intake does not drop below the set value. 5.2.6 Towel dryers installed in bathrooms and shower rooms to maintain the set air temperature in them in accordance with SP 60.13330 and SanPiN 2.1.2.2645 should be connected to the supply pipelines of the hot water supply system or to the consumer's power supply system. When justified, heated towel rails may be connected to the circulation pipes of the hot water supply system, provided that a shut-off valve and a closing section are installed. 5.2.7 In residential and public buildings with a height of more than 4 floors, water risers should be combined with ring jumpers into sectional units with each water unit connected by one circulation pipeline to the collection circulation pipeline of the system. From three to seven water risers should be combined into sectional nodes. Ring jumpers should be laid: in a warm attic, in a cold attic, provided that the pipes are thermally insulated, under the ceiling of the upper floor when water is supplied to the water risers from below, or along the basement when water is supplied to the risers from above. 5.2.8 In the hot water supply system, the connection of water folding devices to circulation pipelines is not allowed. 5.2.9 Pipelines of hot water systems, except for connections to appliances, should be insulated to protect against heat loss. Pipelines of the cold water supply system (except for dead-end fire risers) laid in canals, mines, sanitary cabins, tunnels, as well as in rooms with high humidity, should be insulated to prevent moisture condensation in accordance with SP 61.13330. 5.2.10 The hydrostatic pressure in the system of domestic drinking or domestic fire-fighting water supply at the level of the lowest located sanitary appliance should be no more than 0.45 MPa (for buildings designed in the existing development no more than 0.6 MPa), at the level of the most highly located devices - according to the passport data of these devices, and in the absence of such data, at least 0.2 MPa. It is allowed to increase the pressure up to 0.6 MPa at the level of the lowest located sanitary appliance in the system of the household fire-fighting water supply for the time of extinguishing the fire. In a two-zone fire-fighting water supply system (in schemes with upper piping), in which fire risers are used to supply water to the upper floor, the hydrostatic pressure should not exceed 0.9 MPa at the level of the lowest located sanitary fixture. 5.2.11 When the design pressure in the network exceeds the specified pressure, it is necessary to provide devices (pressure regulators) that reduce pressure. Pressure regulators installed in the drinking water supply system must provide after them the design pressure both in static and dynamic mode of operation of the system. In buildings where the design water pressure of sanitary appliances, water folding and mixing fittings exceeds the permissible values ​​\u200b\u200bspecified in, valves with built-in water flow regulators are allowed. 5.3 Fire water plumbing systems 5.3.1 For residential, public, as well as administrative buildings of industrial enterprises, as well as for industrial and storage buildings, the need for an internal fire water supply system, as well as the minimum water consumption for fire extinguishing, should be determined in accordance with the requirements of SP 10.13130. 5.3.2 For integrated systems of utility and fire-fighting water pipelines, pipeline networks should be taken according to the highest design flow rate and water pressure: for the needs of water consumption in accordance with this set of rules; for the needs of fire fighting in accordance with SP 10.13130. 5.4 Cold and hot water networks 5.4.1 Cold water networks should be taken: dead-end, if a break in the water supply is allowed and if the number of fire hydrants is less than 12; ring or with looped inputs with two dead-end pipelines with branches to consumers from each of them to ensure a continuous supply of water; ring fire risers with a combined system of utility and fire-fighting water supply in buildings with a height of 6 floors or more. At the same time, to ensure the replacement of water in the building, it is necessary to provide for the ringing of fire risers with one or more water risers with the installation of shutoff valves. 5.4.2 Two or more inputs should be provided for buildings: 5.4.3 When arranging two or more inputs, it is necessary to provide for their connection, as a rule, to different sections of the external ring network of the water supply system. Between the inputs to the building on the external network, locking devices should be installed to ensure the supply of water to the building in the event of an accident in one of the sections of the network. 5.4.4 If it is necessary to install pumps in the building to increase the pressure in the internal water supply network, the inlets must be combined in front of the pumps with the installation of shut-off valves on the connecting pipeline to ensure the supply of water by each pump from any inlet. With the device on each input of independent pumping units, the combination of inputs is not required. 5.4.5 At the inlets of the water supply, it is necessary to provide for the installation of check valves if several inlets are installed on the internal water supply network, which have measuring devices and are interconnected by pipelines inside the building. The horizontal distance in the light between the inlets of the drinking water supply and the outlets of the sewer or drains should be taken at least: 1.5 m - with an inlet pipeline diameter of up to 200 mm inclusive; 3 m - with an input pipeline diameter of more than 200 mm. Joint laying of water supply inlets for various purposes is allowed. 5.4.6 On the inlet pipelines, stops should be provided for pipe turns in the vertical or horizontal plane, when the resulting forces cannot be absorbed by the pipe connections. 5.4.7 The intersection of the input pipeline with the walls of the building should be carried out: in dry soils - with a gap of 0.2 m between the pipeline and building structures and sealing the hole in the wall with waterproof and gas-tight (in gasified areas) elastic materials, in wet soils - with the installation of oil seals. 5.4.8 The laying of distributing networks of cold and hot water supply pipelines in residential and public buildings should be provided in undergrounds, basements, technical floors and attics, and in the absence of attics - on the ground floor in underground channels together with heating pipelines or under the floor with a removable cover, and also on the structures of buildings through which open laying of pipelines is allowed, or under the ceiling of non-residential premises of the upper floor. 5.4.9 Water risers and inlets of cold and hot water to apartments and other premises, as well as shutoff valves, measuring instruments, regulators should be placed in communication shafts with the installation of special technical cabinets that provide free access to them for technical personnel. It is allowed to lay risers and wiring in shafts, openly - along the walls of showers, kitchens and other similar premises, taking into account the placement of the necessary locking, regulating and measuring devices. For premises with increased requirements for finishing, and for all networks with pipelines made of polymeric materials (except for pipelines in sanitary facilities), hidden laying should be provided. Hidden laying of steel pipelines connected by thread (with the exception of elbows for connecting wall-mounted water fittings) without access to butt joints is not allowed. 5.4.10 The laying of water supply networks inside industrial buildings, as a rule, should be provided open - along trusses, columns, walls and under ceilings. It is allowed to provide for the placement of water pipes in common channels with other pipelines, except for pipelines transporting flammable, combustible or poisonous liquids and gases. Joint laying of utility and drinking water pipelines with sewer pipelines is allowed to be provided in through channels, while sewerage pipelines should be placed below the water supply. Water pipelines are allowed to be laid in special channels during a feasibility study and according to the design assignment. Pipelines supplying water to process equipment may be laid in the floor or under the floor, with the exception of basements. 5.4.11 When laying jointly in channels with pipelines transporting hot water or steam, the cold water supply network must be placed below these pipelines with a thermal insulation device. 5.4.12 The laying of pipelines should be provided with a slope of at least 0.002, if justified, it is allowed with a slope of 0.001. 5.4.13 Pipelines, except for fire risers, laid in channels, mines, cabins, tunnels, as well as in rooms with high humidity, should be isolated from moisture condensation. 5.4.14 The laying of an internal cold water supply system for year-round operation should be provided in rooms with an air temperature above 2 ° C in winter. When laying pipelines in rooms with an air temperature below 2 ° C, measures must be taken to protect pipelines from freezing (electric heating or thermal support). If it is possible to temporarily reduce the temperature in the room to 0°С and below, as well as when laying pipes in the zone of influence of outside cold air (near external entrance doors and gates), thermal insulation of pipes should be provided. 5.4.15 Devices for air release should be provided at the highest points of pipelines of hot water supply systems. The release of air from the pipeline system is allowed through the water fittings located at the upper points of the system (upper floors). Drainage devices should be provided at the lowest points of the piping systems, unless water fittings are provided at these points. 5.4.16 When designing hot water supply networks, measures should be taken to compensate for temperature changes in the length of pipes. 5.4.17 Thermal insulation should be provided for the supply and circulation pipelines of hot water supply systems, except for connections to water-folding devices. 5.4.18 Pressure losses in sections of pipelines of cold and hot water supply networks, including when combining risers into water supply units, should be determined taking into account the roughness of the pipe material and the viscosity of the water. 5.5 Calculation of the cold water supply network 5.5.1 Hydraulic calculation of cold water pipeline networks must be carried out according to the maximum second water flow. Hydraulic calculation of cold water pipelines includes: determination of estimated water flow rates, selection of diameters of supply pipelines, annular jumpers and risers, pressure losses and the establishment of a normalized free pressure at control points of water intake. For groups of buildings, the preparation of hot water and / or the increase in water pressure for which is carried out in separate (or internal) pumping stations and heating points, the determination of the estimated water flow rates and the hydraulic calculation of pipelines should be carried out in accordance with these standards. 5.5.2 The networks of the combined economic and fire-fighting and industrial-fire-fighting water pipelines should be checked for the passage of the estimated water flow for fire extinguishing at the estimated maximum second flow rate for household and drinking and production needs. At the same time, the cost of water for the use of showers, washing floors, watering the territory is not taken into account. Hydraulic calculation of water supply networks is carried out for design schemes of ring networks without excluding any sections of the network, risers or equipment. Note. For residential areas, for the period of fire fighting and liquidation of an accident on the external water supply network, it is allowed not to provide water supply to the closed hot water supply system. 5.5.3 When calculating utility, drinking, industrial networks, including those combined with a fire water supply, it is necessary to provide the necessary water pressure at the devices located the highest and farthest from the input. 5.5.4 Hydraulic calculation of water supply networks fed by several inputs should be made taking into account the shutdown of one of them. With two inputs, each of them must be designed for 100% water flow. 5.5.5 Pipe diameters of internal water supply networks should be taken based on the use of the maximum guaranteed water pressure in the external water supply network. The diameters of the pipelines of the ring jumpers should be taken not less than the larger diameter of the water riser. 5.5.6 The speed of water movement in the pipelines of internal networks should not exceed 1.5 m / s, with a check of the throughput of pipelines of the combined economic and fire-fighting and production-fire-fighting systems at a speed of 3 m / s. The diameters of the pipelines of the water risers in the water assembly should be selected according to the calculated maximum second water flow in the riser with a coefficient of 0.7. 5.6 Calculation of the hot water plumbing network 5.6.1 Hydraulic calculation of hot water circulating systems should be made for two modes of water supply (drainage and circulation): a) determination of the estimated second water flow rates, selection of the diameters of the supply pipelines and determination of pressure losses along the supply pipelines in the drawdown mode; b) selection of diameters of circulation pipelines, determination of the required circulation flow rate per second and linkage of pressure losses in individual rings of hot water supply networks in circulation mode. 5.6.2 The selection of the diameters of the supply pipelines of hot water supply networks in the drawdown mode should be carried out at the calculated maximum second flow rate of hot water with the coefficient Kcirc, taking into account the residual circulation flow in the drawdown mode. The coefficient K circus should be taken: 1.1 - for water heaters and sections of supply pipelines of hot water supply networks to the last water-folding unit of the main settlement branch; 1.0 - for other sections of the supply pipelines. In the mode of minimum water withdrawal during the night period, the value of the circulation flow of hot water should be taken equal to 30 - 40% of the calculated average second flow of water. 5.6.3 The diameters of the standpipes in the standpipe should be selected according to the value of the calculated maximum second water flow in the riser with a coefficient of 0.7, provided that the length of the ring jumpers from the place of the last water withdrawal (in the direction of water flow) of one standpipe to a similar point of another standpipe does not exceed the length of the standpipe itself. The diameters of the ring jumpers should be taken not less than the maximum diameter of the standpipe. 5.6.4 In networks of open hot water intake from pipelines of the heating network, pressure losses should be determined taking into account the pressure in the return pipeline of the heating network. 5.6.5 The circulation flow in hot water supply networks should be determined: when distributing the circulation flow in proportion to heat losses (due to the variable resistance of the circulation risers) - by the sum of the heat losses of the supply pipelines and the temperature difference from the heater outlet to the water withdrawal point. Changing the resistance of circulation risers must be done by selecting their diameter, using balancing valves, automatic control devices and throttling diaphragms (diameter not less than 10 mm). 5.6.6 If there is an annular jumper between the water risers, when calculating the heat losses of the water assembly, the heat losses of the pipelines of the annular jumper are taken into account. 5.6.7 Pressure losses in the circulation mode in individual branches of the hot water supply system (including circulation pipelines) should not differ for different branches by more than 10%. 5.6.8 The speed of movement of hot water in the pipelines of the hot water supply system of networks should not exceed 1.5 m / s. 6 Additional requirements for internal water supply networks in special natural and climatic conditions 6.1 Subsiding soils 6.1.1 It is recommended to place water pipelines inside the building above the floor level of the first or basement floors with an open laying accessible for inspection and repair. 6.1.2 The arrangement of water inlets and the laying of pipelines under the floor inside the building under soil conditions of type II should be provided in watertight channels with a slope towards control wells. The length of waterproof channels at the entrances to buildings from the outer edge of the foundation of the building to the control well must be taken depending on the thickness of the layer of subsiding soils and the diameters of the pipelines along.

Approved

Order of the Ministry of Regional Development of Russia

dated December 29, 2011 N 626
SET OF RULES
INDOOR WATER SUPPLY AND SEWERAGE OF BUILDINGS
UPDATED VERSION OF SNIP 2.04.01-85*
Domestic water supply and drainage systems in buildings
SP 30.13330.2012
OKS 91.140.60,

OKS 91.140.80
Introduction date

January 1, 2013
Foreword
The goals and principles of standardization in the Russian Federation are established by the Federal Law of December 27, 2002 N 184-FZ "On technical regulation", and the development rules - by the Decree of the Government of the Russian Federation of November 19, 2008 N 858 "On the procedure for developing and approving sets of rules ".
About the set of rules
1. Performers - OJSC "SantekhNIIproekt", OJSC "Research Center "Construction".

2. Introduced by the Technical Committee for Standardization TC 465 "Construction".

3. Prepared for approval by the Department of Architecture, Construction and Urban Policy.

4. Approved by the Order of the Ministry of Regional Development of the Russian Federation (Ministry of Regional Development of Russia) dated December 29, 2011 N 626 and entered into force on January 1, 2013.

5. Registered by the Federal Agency for Technical Regulation and Metrology (Rosstandart). Revision of SP 30.13330.2010 "SNiP 2.04.01-85*. Internal water supply and sewerage of buildings".
Information about changes to this set of rules is published in the annually published information index "National Standards", and the text of changes and amendments - in the monthly published information indexes "National Standards". In case of revision (replacement) or cancellation of this set of rules, a corresponding notice will be published in the monthly published information index "National Standards". Relevant information, notification and texts are also posted in the public information system - on the official website of the developer (Ministry of Regional Development of Russia) on the Internet.
Introduction
This set of rules is an updated version of SNiP 2.04.01-85 * "Internal water supply and sewerage of buildings". The basis for the development of a regulatory document are: Federal Law of December 30, 2009 N 384-FZ "Technical Regulations on the Safety of Buildings and Structures", Federal Law N 184-FZ "On Technical Regulation", Federal Law N 261-FZ "On Energy Saving and on improving energy efficiency.

The SNiP was updated by a team of authors: OJSC "SantekhNIIproekt" (PhD A.Ya. Sharipov, engineer T.I. Sadovskaya, engineer E.V. Chirikova), OJSC "Mosproekt" (engineers E.N. Chernyshev , K.D. Kunitsyna), NP "ABOK" (Doctor of Technical Sciences, Prof. Yu.A. Tabunshchikov, engineer A.N. Kolubkov), OJSC "CNS" (engineer V.P. Bovbel) , Chamber of Commerce and Industry of the Russian Federation (engineer A.S. Verbitsky), State Unitary Enterprise "MosvodokanalNIIproekt" (engineer A.L. Lyakmund).
The mandatory application of section 1 ensures compliance with the requirements of the Federal Law of December 30, 2009 N 384-FZ "Technical Regulations on the Safety of Buildings and Structures" (Decree of the Government of the Russian Federation of December 26, 2014 N 1521).

1 area of ​​use
1.1. This set of rules applies to the designed and reconstructed internal systems of cold and hot water supply, sewerage and drains of buildings and structures (hereinafter referred to as buildings) for various purposes up to 75 meters high.

1.2. These rules do not apply:

on the internal fire water supply of buildings and structures;

automatic water fire extinguishing systems;

thermal points;

hot water treatment plants;

hot water supply systems supplying water for medical procedures, technological needs of industrial enterprises and water supply systems within process equipment;

systems of special industrial water supply (deionized water, deep cooling, etc.).
2. Regulatory references
This set of rules uses references to the following regulatory documents:

SP 5.13130.2009 Fire protection systems. Fire alarm and fire extinguishing installations are automatic. Design norms and rules

SP 10.13130.2009 Fire protection systems. Internal fire water supply. fire safety requirements

SP 21.13330.2012 "SNiP 2.01.09-91 Buildings and structures in undermined areas and subsidence soils"

SP 31.13330.2012 "SNiP 2.04.02-84* Water supply. External networks and facilities"

SP 32.13330.2012 "SNiP 2.04.03-85 Sewerage. External networks and structures"

SP 54.13330.2011 "SNiP 31-01-2003 Residential multi-apartment buildings"

SP 60.13330.2012 "SNiP 41-01-2003 Heating, ventilation and air conditioning"

SP 61.13330.2012 "SNiP 41-03-2003 Thermal insulation of equipment and pipelines"

SP 73.13330.2012 "SNiP 3.05.01-85 Internal sanitary systems of buildings"

SP 118.13330.2012 "SNiP 31-06-2009 Public buildings and structures"

SP 124.13330.2012 "SNiP 41-02-2003 Heating networks"

GOST 17.1.2.03-90 Nature protection. Hydrosphere. Criteria and indicators of water quality for irrigation

SanPiN 2.1.4.1074-01 Drinking water. Hygienic requirements for water quality of centralized drinking water supply systems. Quality control. Hygienic requirements for ensuring the safety of hot water supply systems

SanPiN 2.1.4.2496-09 Hygienic requirements for ensuring the safety of hot water supply systems

SanPiN 2.1.2.2645-10 Sanitary and epidemiological requirements for living conditions in residential buildings and premises

SN 2.2.4 / 2.1.8.562-96 Noise at workplaces, in residential, public buildings and in residential areas

SN 2.2.4/2.1.8.566-96 Industrial vibration, vibration in residential and public buildings.

Note. When using this standard, it is advisable to check the effect of reference standards and classifiers in the public information system - on the official website of the national body of the Russian Federation for standardization on the Internet or according to the annually published information index "National Standards", which was published as of January 1 of the current year, and according to the corresponding monthly published information signs published in the current year. If the reference standard is replaced (modified), then when using this set of rules, one should be guided by the replacing (modified) document. If the referenced document is canceled without replacement, the provision in which the link to it is given applies to the extent that this link is not affected.
3. Terms and definitions
This document uses terms whose definitions are adopted according to the Rules for the use of public water supply and sewerage systems in the Russian Federation, approved, as well as the following terms with the corresponding definitions:

3.1. Subscriber: a legal entity, as well as entrepreneurs without forming a legal entity, owning, managing or operating objects, water supply and (or) sewerage systems that are directly connected to public water supply and (or) sewerage systems, who have entered into a water supply and (or) sewerage organization with an organization sewerage facilities in accordance with the established procedure, an agreement for the supply (receipt) of water and (or) the reception (discharge) of wastewater;

3.2. Engineering systems accident: damage or failure of water supply systems, sewage systems or individual structures, equipment, devices, resulting in the cessation or significant reduction in water consumption and water disposal, drinking water quality or causing damage to the environment, property of legal entities or individuals and public health;

3.3. Water consumption balance: the volume of water used per year for drinking, sanitary, fire-fighting, industrial needs and their satisfaction from all sources of water supply, including drinking-quality water supply, recycling water supply, collection and treatment of storm water, etc.;

3.4. Internal sewerage system (internal sewerage): a system of pipelines and devices within the boundaries of the external contour of a building and structures, limited by outlets up to the first manhole, ensuring the discharge of sewage, rain and melt water into the sewerage network of the appropriate destination of a settlement or enterprise;

3.5. Internal water supply system (internal water supply): a system of pipelines and devices that provides water supply to sanitary appliances, technological equipment and fire hydrants within the boundaries of the outer contour of the walls of one building or a group of buildings and structures and has a common water metering device from external water supply networks of a populated point or company. In special natural conditions, the boundary of the internal water supply is considered from the control well closest to the building (structure);

3.6. Water supply and sewerage devices and structures for connection to water supply and sewerage systems (water inlet or sewer outlet): devices and structures through which the subscriber receives drinking water from the water supply system and (or) discharges wastewater into the sewerage system;

3.7. Water consumption: the use of water by the subscriber (sub-subscriber) to meet their needs;

3.8. Water supply: a technological process that ensures the intake, preparation, transportation and transfer of drinking water to subscribers;

3.9. Wastewater disposal: a technological process that ensures the reception of wastewater from subscribers with their subsequent transfer to sewage treatment facilities;

3.10. Water supply network: a system of pipelines and structures on them intended for water supply;

3.11. Guaranteed pressure: pressure at the inlet of the subscriber, which is guaranteed to be provided by the water supply organization according to the technical conditions;

3.12. Sewer network: a system of pipelines, collectors, channels and structures on them for collecting and discharging sewage;

3.13. Ventilated sewer riser: a riser having an exhaust part and through it - communication with the atmosphere, contributing to air exchange in the pipelines of the sewer network;

3.14. Ventilated valve: a device that allows air to pass in one direction - following the liquid moving in the pipeline and does not allow air to pass in the opposite direction;

3.15. Sewer non-ventilated riser: a riser that is not connected to the atmosphere. Non-ventilated risers include:

a riser that does not have an exhaust part;

a group (at least four) of risers, united on top by a collection pipeline, without an exhaust part device;

3.16. Local treatment facilities: facilities and devices intended for the treatment of wastewater of the subscriber (sub-subscriber) before discharge (reception) into the public sewerage system or for use in the circulating water supply system;

3.17. Water consumption (water disposal) limit: the maximum volume of released (received) drinking water and received (discharged) wastewater established by the technical conditions for a subscriber for a certain period of time;

3.18. Water supply and sewerage organization ("Vodokanal"): an enterprise (organization) that discharges water from the water supply system and (or) receives wastewater into the sewerage system and operates these systems;

3.19. Drinking water: water after preparation or in a natural state that meets the hygienic requirements of sanitary standards and is intended for drinking and domestic needs of the population and (or) food production;

3.20. Throughput capacity of a device or structure for connection: the ability of a water inlet (sewer outlet) to pass the estimated amount of water (wastewater) under a given mode for a certain time;

3.21. Estimated water consumption: consumption rates substantiated by research and operational practice, taking into account the main influencing factors (number of consumers, number of sanitary appliances, occupancy of apartments in residential buildings, output volume, etc.);

estimated water consumption and consumption rates cannot be used to determine the actual volume of water consumption and commercial calculation;

3.22. Estimated effluent costs: justified by research and operating practice, the values ​​​​of costs predicted for the sewer facility as a whole or part of it, taking into account influencing factors (number of consumers, quantity and characteristics of sanitary appliances and equipment, capacity of discharge pipelines, etc.);

3.23. Permits: permission to connect to water supply (sewage) systems, issued by local governments in agreement with the local services of Rospotrebnadzor, and technical conditions for connection, issued by a water supply and sewerage organization;

3.24. Drinking water supply (receipt) mode: guaranteed flow rate (hourly, second) and free pressure at a given characteristic water consumption for the needs of the subscriber;

3.25. System of open hot water intake: analysis of hot water directly from the network of the heat supply system;

3.26. Closed hot water intake system: water heating for hot water supply in heat exchangers and water heaters;

3.27. Recycled water supply system: cleaning system in local treatment facilities and reuse of wastewater for household and technological needs;

3.28. Wastewater composition: wastewater characteristics, including a list of pollutants and their concentration;

3.30. Waste water: water generated as a result of human activities (household waste water) and subscribers after using water from all sources of water supply (drinking, technical, hot water supply, steam from heat supply organizations);

3.31. Metering unit for consumed drinking water and discharged wastewater (metering unit): a set of instruments and devices that provide accounting for the amount of consumed (received) water and discharged (received) wastewater;

3.32. Centralized water supply system: a complex of engineering structures of settlements for the intake, preparation, transportation and transfer of drinking water to subscribers;

3.33. Centralized sewerage system: a complex of engineering structures of settlements for collecting, treating and diverting wastewater into water bodies and processing sewage sludge.
4. General provisions
The mandatory application of clause 4.1 ensures compliance with the requirements of the Federal Law of December 30, 2009 N 384-FZ "Technical Regulations on the Safety of Buildings and Structures" (Decree of the Government of the Russian Federation of December 26, 2014 N 1521).

4.1. Pipelines of water supply systems (including external fire extinguishing) and sewage systems laid outside buildings must comply with the standards for external water supply and sewerage networks (SP 31.13330 and SP 32.13330).

4.2. Hot water preparation should be provided in accordance with the norms for heat networks SP 124.13330.

4.3. In buildings of any purpose erected in sewered areas, internal water supply and sewerage systems should be provided.

The quality of wastewater after treatment in local installations must comply with the technical conditions for receiving them in the external sewerage network and departmental standards.

4.4. In non-sewered areas of settlements, internal water supply systems with the installation of local apartment and / or collective systems for post-treatment of drinking water and sewerage systems with the installation of local treatment facilities should be provided in residential buildings with a height of more than two floors, hotels, nursing homes for the disabled and the elderly, hospitals, maternity hospitals, clinics, outpatient clinics, dispensaries, sanitary and epidemiological stations, sanatoriums, rest homes, boarding houses, sports and recreation institutions, preschool educational institutions, boarding schools, primary and secondary vocational education institutions, secondary schools, cinemas, club and leisure and entertainment institutions, catering establishments, sports facilities, baths and laundries.

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