SNiP 2.04.01-85*
BUILDING REGULATIONS
INDOOR WATER SUPPLY AND
SEWERAGE OF BUILDINGS
Introduction date 1986-07-01
GPI Santekhproekt of Gosstroy of the USSR (Yu.N. Sargin), TsNIIEP of engineering equipment of Gosgrazhdanstroy (Candidate of Technical Sciences L.A. Shopensky), MNIITEP GlavAPU of the Moscow City Executive Committee (Candidate of Technical Sciences N.N. Chistyakov; I.B. Pokrovskaya) ), Donetsk Industrial Construction Project of the State Construction Committee of the USSR (E.M. Zaitseva), SKTB Rostrubplast of the Roskolkhozstroyobedinenie (Candidate of Technical Sciences A.Ya. Dobromyslov), Research Institute Mosstroy (Candidate of Technical Sciences Ya.B. Alesker), NGO | Stroipolimer" (Prof. V.S. Romeiko, V.A. Ustyugov), MGSU (Prof. V.N. Isaev), Mosvodokanalproekt (A.S. Verbitsky).
INTRODUCED GPI Santekhproekt Gosstroy USSR.
PREPARED FOR APPROVAL by the Main Technical Regulation of the USSR Gosstroy (Ministry of Construction of Russia) - B.V. Tambovtsev, V.A. Glukharev.
APPROVED by the Decree of the USSR State Committee for Construction of October 4, 1985 No. 189.
AGREED BY the Ministry of Health of the USSR, GUPO of the Ministry of Internal Affairs of the USSR.
INSTEAD OF SNiP II-30-76 and SNiP II-34-76.
SNiP 2.04.01-85* is a reissue of SNiP 2.04.01-85 with Amendment No. 1, approved by Decree of the USSR Gosstroy No. 20 of November 28, 1991, and Amendment No. 2, approved by Decree of the Ministry of Construction of Russia of July 11, 1996 No. 18 -46.
Items and tables that have been amended are marked in these building codes and rules with an asterisk.
1. GENERAL PROVISIONS
1.1. These standards apply to the design of under construction and reconstructed systems of internal cold and hot water supply, sewerage and drains.
1.2. When designing systems for internal cold and hot water supply, sewerage and drains, it is necessary to comply with the requirements of other normative documents approved or agreed by the Ministry of Construction of Russia.
1.3. These standards do not apply to the design of:
fire water supply systems of enterprises producing or storing explosive, flammable and combustible substances, as well as other objects, the requirements for the internal fire water supply of which are established by the relevant regulatory documents;
automatic fire extinguishing systems;
thermal points;
hot water treatment plants;
hot water supply systems supplying water for the technological needs of industrial enterprises (including medical procedures) and water supply systems within the technological equipment;
systems of special industrial water supply (deionized water, deep cooling, etc.).
1.4. Internal water supply - a system of pipelines and devices that provides water supply to sanitary appliances, fire hydrants and technological equipment, serving one building or a group of buildings and structures and having a common water metering device from the water supply network of a settlement or industrial enterprise.
In the case of water supply from the system for external fire extinguishing, the design of pipelines laid outside buildings must be carried out in accordance with SNiP 2.04.02-84 *.
Internal sewerage - a system of pipelines and devices in a volume limited by the outer surfaces of the enclosing structures and outlets to the first manhole, which ensures the discharge of wastewater from sanitary appliances and process equipment and, if necessary, local treatment facilities, as well as rain and melt water into the sewerage network the corresponding purpose of the settlement or industrial enterprise.
Notes: 1. Hot water preparation should be provided on
installations in accordance with the guidelines for the design of thermal
points and thermal units.
2. Installations of local wastewater treatment should be designed in
in accordance with SNiP 2.04.03-85 and departmental building codes.
1.5. In all types of buildings erected in sewer areas, systems should be provided internal water supply and sewers.
In non-sewered areas of settlements, internal water supply and sewerage systems with the installation of local sewage treatment facilities must be provided in residential buildings with a height of more than two floors, hotels, nursing homes (in countryside), hospitals, maternity hospitals, polyclinics, outpatient clinics, dispensaries, sanitary and epidemiological stations, sanatoriums, rest homes, boarding houses, pioneer camps, kindergartens, boarding schools, educational institutions, general education schools, cinemas, clubs, catering establishments, sports facilities, bathhouses and laundries.
Notes: 1. In production and auxiliary buildings
internal water supply and sewerage systems are allowed not
provide for in cases where the enterprise does not have
centralized water supply and the number of employees is not more than
25 people in shift.
2. In buildings equipped with internal utility and drinking or
industrial water supply, it is necessary to provide a system
internal sewerage.
1.6. In non-sewered areas of settlements, it is allowed to equip the following buildings (structures) with backlash closets or cesspools (without plumbing inlets):
production and auxiliary buildings of industrial enterprises with up to 25 employees. in shift;
residential buildings with a height of 1-2 floors;
hostels with a height of 1-2 floors for no more than 50 people;
pioneer camps for no more than 240 places, used only in the summer;
type I clubs;
open planar sports facilities;
catering establishments for no more than 25 seats.
Note. Backlash closets are allowed to be provided when
designing buildings for I-III climatic regions.
1.7. The need for internal drains is established by the architectural and construction part of the project.
1.8. Pipes, fittings, equipment and materials used in the device internal systems cold and hot water supply, sewerage and drains, must comply with the requirements of these norms, state standards, norms and specifications approved in the prescribed manner.
When transporting and storing drinking water, pipes, materials and anti-corrosion coatings approved by the Russian Glavsanepidnadzor for use in the practice of domestic and drinking water supply should be used.
1.9. The main technical decisions taken in the projects and the sequence of their implementation must be justified by comparing the indicators options. Technical and economic calculations should be carried out for those options, the advantages (disadvantages) of which cannot be established without calculation.
The optimal calculation option is determined by the smallest value of the reduced costs, taking into account the reduction in the consumption of material resources, labor costs, electricity and fuel.
1.10. When designing, it is necessary to provide for the use of progressive technical solutions and methods of work: mechanization of labor-intensive work, automation technological processes and maximum industrialization of construction and installation works through the use of prefabricated structures, standard and standard products and parts manufactured in factories and procurement workshops.
1.11. The main letter designations adopted in these standards are given in mandatory Appendix 1.
2. QUALITY AND TEMPERATURE OF WATER
IN WATER SUPPLY SYSTEMS
2.1. The quality of cold and hot water supplied for household and drinking needs must comply with GOST 2874-82 *. The quality of water supplied for production needs is determined by technological requirements.
2.2. The temperature of hot water in the places of water intake should be provided:
a) not lower than 60 ° C - for centralized hot water supply systems connected to open heat supply systems;
b) not lower than 50°C - for centralized hot water supply systems connected to closed heat supply systems;
c) not higher than 75°C - for all systems specified in subparagraphs | a" and | b".
2.3. 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.
2.4. At public catering establishments and for other water consumers who need hot water with a temperature higher than that specified in clause 2.2, local water heaters should be provided for reheating water.
2.5. The temperature of the hot water supplied by the water heaters to the distribution pipelines of the centralized hot water supply systems must comply with the recommendations of the heating substation design manual.
2.6. In settlements and enterprises where sources of drinking water supply do not provide all the needs of consumers, with a feasibility study and in agreement with the bodies of the sanitary and epidemiological service, it is allowed to supply non-potable water to urinals and toilet flush tanks.
3. DETERMINATION OF ESTIMATED COSTS
WATER IN WATER SUPPLY AND
SEWER AND HEAT FOR NEEDS
HOT WATER
3.1. Cold, hot water supply and sewerage systems must provide water supply and wastewater disposal (flow rate) corresponding to the estimated number of water consumers or installed sanitary appliances.
assigned to one device, it is necessary to determine:
a separate device - according to mandatory Appendix 2;
various devices serving the same water consumers in the section of the dead-end network - in accordance with the mandatory Appendix 3;
various devices serving different water consumers - according to the formula
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Probability of action of sanitary appliances, determined for each group of water consumers in accordance with clause 3.4; |
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Secondary water consumption (total, hot, cold), l / s, water folding fittings (device), accepted in accordance with mandatory Appendix 3, for each group of water users. |
should be determined for the network as a whole and taken the same for all
plots.
2. In residential and public buildings and structures, for which
no information on water consumption and technical characteristics
l / s, should be determined by the formula
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Secondary water flow, the value of which should be determined according to clause 3.2; |
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4 depending on the total number of devices N in the calculated area networks and the probability of their action P, calculated according to clause 3.4. At be guided by P > 0.1 and N<= 200; при других значениях Р и N |
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coefficient |
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applications 4. |
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With known calculated values P, N and values q(0) = 0.1; 0.14; 0.2; 0.3 l / s to calculate the maximum second water flow, it is allowed to use nomograms 1-4 of the recommended Appendix 4.
Notes: 1. Water flow at the end sections of the network should be
take according to the calculation, but not less than the maximum second flow rate
water by one of the installed sanitary appliances.
2. Water consumption for technological needs of industrial enterprises
should be defined as the sum of water consumption by technological
equipment, provided that the operation of the equipment coincides in time.
3. For auxiliary buildings of industrial enterprises, the value of q
can be defined as the sum of water consumption for domestic needs according to
formula (2) and shower needs - according to the number of installed shower nets according to
mandatory application 2.
b) with different groups of water consumers in the building (buildings) or structure (structures) for various purposes
Notes: 1. In the absence of data on the number of sanitary
devices in buildings or structures, the value of P is allowed to be determined
according to formulas (3) and (4), assuming N = 0.
2. With several groups of water consumers, for which periods
the highest water consumption will not coincide with the time of day,
the probability of operation of devices for the system as a whole is allowed
calculate according to formulas (3) and (4) taking into account reduction factors,
determined during the operation of similar systems.
and hot water supply serving a group of devices, according to the formula
a) with the same water consumers in the building (buildings) or structure (structures) in accordance with the mandatory Appendix 3;
b) with different water consumers in the building (buildings) or structure (structures) - according to the formula
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Note. In residential and public buildings (structures), according to
for which there is no information about the number and technical characteristics
sanitary appliances, it is allowed to accept:
in general should be determined by the formula
according to the formula
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depending on the total number of devices N served by the projected |
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system, and the likelihood of their use |
Calculated in accordance with clause 3.7. |
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> 0.1 and N<=200, при других значениях |
and N coefficient |
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Note. For auxiliary buildings of industrial enterprises
the use of showers and household and drinking needs, taken according to
mandatory Annex 3 on the number of water users in the most
numerous shifts.
3.10. When designing direct water intake from the pipelines of the heating network for the needs of hot water supply, the average temperature of hot water in the water risers should be maintained at 65 ° C, and the hot water consumption rates should be taken in accordance with the mandatory Appendix 3 with a coefficient of 0.85, while the total amount of water consumed should not be changed .
3.11. The maximum hourly wastewater flow rate should be taken equal to the estimated flow rates determined in accordance with clause 3.8.
3.12. The daily water consumption should be determined by summing up the water consumption by all consumers, taking into account the water consumption for irrigation. The daily consumption of wastewater must be taken equal to water consumption, excluding the consumption of water for irrigation.
a) during the average hour
WATER PIPES
4. COLD WATER PIPE SYSTEMS
4.1. Internal water supply systems (domestic, industrial, fire-fighting) include: inputs to buildings, water metering units, distribution network, risers, connections to sanitary appliances and technological installations, water folding, mixing, shut-off and control valves. Depending on local conditions and production technology, pumping units and spare and control tanks connected to the internal water supply system should be included in the internal water supply system.
4.2. The choice of an internal water supply system should be made depending on the technical and economic feasibility, sanitary and hygienic and fire safety requirements, as well as taking into account the accepted external water supply system and the requirements of production technology.
Connection of utility and drinking water supply networks with water supply networks supplying water of non-potable quality is not allowed.
4.3. For groups of buildings that differ in height by 10 m or more, measures should be taken to ensure the required water pressure in the water supply systems of these buildings.
4.4. Industrial water supply systems must meet technological requirements and not cause corrosion of equipment and pipelines, salt deposits and biological fouling of pipes and devices.
4.5. In buildings (structures), depending on their purpose, the following internal water supply systems should be provided:
household and drinking;
fire fighting;
production (one or more).
The fire water supply system in buildings (structures) with domestic drinking or industrial water supply systems should, as a rule, be combined with one of them.
4.6. In industrial and auxiliary buildings, depending on the requirements of production technology and in accordance with the instructions for the construction design of enterprises, buildings and structures of various industries, to reduce water consumption, systems of circulating water supply and water reuse should be provided.
Note. When justifying the revolving system, it is allowed not to
provide.
4.7. Circulating water supply systems for cooling technological solutions, products and equipment, if technically possible, should be designed, as a rule, without breaking the jet with water supply to the coolers using the residual head.
4.8. When designing water supply systems, it is necessary to provide for measures to reduce wasteful water consumption and reduce noise.
5. HOT WATER SUPPLY SYSTEMS
5.1. Depending on the mode and volume of hot water consumption for household and drinking needs of buildings and structures for various purposes, centralized water supply systems or local water heaters should be provided.
Note. If hot drinking water supply is required
quality for technological needs, it is allowed to provide for the supply
hot water at the same time for household and drinking and technological
5.2. It is not allowed to connect pipelines of the hot water supply system with pipelines supplying hot water of non-potable quality for technological needs, as well as direct contact with process equipment and hot water installations supplied to the consumer with a possible change in its quality.
5.3. The choice of a heating and water treatment scheme for centralized hot water supply systems should be made in accordance with SNiP 2.04.07-86 * and | Guidelines for the design of heat points.
5.4. In systems of centralized hot water supply, provision should be made for the placement of water heating points, as a rule, in the center of the hot water consumption area.
5.5. It is allowed not to provide for the circulation of hot water in centralized hot water supply systems with a time-regulated consumption of hot water, if its temperature at the points of water intake does not decrease below that established in Sec. 2 of these rules.
5.6. * In buildings and premises of medical institutions, preschool and residential buildings in bathrooms and showers, it is necessary to provide for the installation of heated towel rails connected to hot water supply systems, as a rule, according to a scheme that ensures their constant heating with hot water.
Notes: 1. When supplying hot water with centralized
hot water supply, connected to heating networks with
direct water intake, it is allowed to attach
heated towel rails for independent heating systems
year-round operation of bathrooms and showers.
2. On heated towel rails, shut-off valves should be provided
to turn them off during the summer.
5.7. In residential and public buildings with a height of more than 4 floors, groups of water risers should be combined with ring jumpers into sectional units with each sectional 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 under a layer of thermal insulation, 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 water risers from above.
Note. It is allowed not to loop water risers when
the length of the ring jumper, exceeding the total
the length of the circulation risers.
5.8. In buildings with a height of up to 4 floors, as well as in buildings in which there is no possibility of laying ring jumpers, it is allowed to install heated towel rails:
on the circulation risers of the hot water supply system;
on a year-round bathroom heating system, while water risers and distributing pipelines should be laid together with heating pipelines in general insulation.
5.9. Connection of water folding devices to circulation risers and circulation pipelines is not allowed.
5.10. For rural settlements and settlements, the choice of the type of hot water supply system is determined by a technical and economic calculation.
5.11. The installation of storage tanks in the centralized hot water supply system should be provided in accordance with Sec. thirteen.
5.12.* The pressure in the hot water supply system for sanitary appliances should be no more than 0.45 MPa (4.5 kgf / sq. cm).
6. FIRE-FIGHTING WATER SUPPLY SYSTEMS
6.1. * For residential and public buildings, as well as administrative buildings of industrial enterprises, 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 Table. 1 *, and for industrial and storage buildings - in accordance with table. 2.
The water consumption for fire extinguishing, depending on the height of the compact part of the jet and the diameter of the spray, should be specified according to Table. 3.
The need to install automatic fire extinguishing systems should be accepted in accordance with the requirements of the relevant estimated norms and rules and lists of buildings and premises to be equipped with automatic fire extinguishing equipment approved by the ministries. In this case, the simultaneous operation of fire hydrants and sprinkler or deluge installations should be taken into account.
Table 1*
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residential, public and administrative buildings and premises |
Minimum water consumption for internal fire extinguishing, l / s, per jet |
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1. Residential buildings: |
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with the number of floors from 12 to 16 |
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the same, with a total length of the corridor over 10 m |
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with the number of floors of St. 16 to 25 |
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the same, with the total length of the corridor of St. 10 m |
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2. Office buildings: |
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height from 6 to 10 floors and volume up to |
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the same, the volume of St. 25000 cubic meters |
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3. Clubs with a stage, theaters, cinemas, assembly and conference halls equipped with cinema equipment |
According to SNiP 2.08.02-89* |
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4. Hostels and public buildings not listed in pos. 2: |
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with the number of floors up to 10 and volume from 5000 to 25000 cubic meters |
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the same, the volume of St. 25000 cubic meters |
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with the number of floors of St. 10 and up to |
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the same, the volume of St. 25000 cubic meters |
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5. Administrative buildings industrial enterprises volume, cubic meters: |
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from 5000 to 25000 |
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Notes: 1. The minimum water consumption for residential buildings is allowed to be taken equal to 1.5 l / s in the presence of fire hoses, hoses and other equipment with a diameter of 38 mm. 2*. The building volume is taken as the volume of the building, determined in accordance with SNiP 2.08.02-89*. |
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table 2
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The degree of og- building instability |
on fire danger |
Number of jets and minimum water consumption, l/s, per jet, for internal fire extinguishing in industrial and warehouse buildings up to 50 m high and volume, thousand cubic meters |
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St. 50 to 200 |
St. 200 to 400 |
St. 400 to 800 |
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Notes: 1. For laundry factories, fire extinguishing should be provided in the premises for processing and storing dry linen. 2. Water consumption for internal fire extinguishing in buildings or premises with a volume exceeding the values \u200b\u200bspecified in Table. 2, should be agreed in each case with the territorial fire authorities. 3. The number of jets and the water consumption of one jet for buildings of the degree of fire resistance: IIIb - buildings of predominantly frame construction. Frame elements made of solid or glued wood and other combustible building envelope materials (mainly wood) subjected to fire retardant treatment; IIIa - buildings mainly with an unprotected metal frame and enclosing structures made of fireproof sheet materials with slow-burning insulation; IVa - buildings predominantly one-story with a metal unprotected frame and enclosing structures made of sheet non-combustible materials with combustible insulation are accepted according to the specified table, depending on the placement of production categories in them, both for buildings of II and IV degrees of fire resistance, taking into account the requirements of paragraph 6.3 * (equating the degree of fire resistance IIIa to II, IIIb and IVa to IV). |
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Table 3
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The height of the compact part of the jet or |
Produc- validity fire department jets, l/s |
Head, m, y hot tap with sleeves length, m |
Produc- validity fire department jets, l/s |
Head, m, y hot tap with sleeves length, m |
Produc- validity fire department jets, l/s |
Head, m, y hot tap with sleeves length, m |
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premises, |
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Fire hose tip spray diameter, mm |
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Fire hydrants d = 50 mm |
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Fire hydrants d = 65 mm |
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Page 1 of 35
SNiP 2.04.01-85
BUILDING REGULATIONS
INDOOR WATER SUPPLY AND SEWERAGE OF BUILDINGS
SNiP 2.04.01-85*
USSR STATE COMMITTEE
CONSTRUCTION
GPI Santekhproekt of Gosstroy of the USSR was DEVELOPED ( YU. N. Sargin), TsNIIEP of engineering equipment of Gosgrazhdanstroy (candidate of technical sciences L. A. Shopensky), MNIITEP GlavAPU of the Moscow City Executive Committee (candidate of technical sciences N. N. Chistyakov; I. B. Pokrovskaya), Donetsk-Kim Promstroyniiproekt Gosstroy USSR ( E. M. Zaitseva), SKTB Rostrubplasta Roskolkhozstroyobedineniye (candidate of technical sciences A. Ya. Dobromyslov), Research Institute Mosstroy (candidate of technical sciences Ya. B. Alasker).
INTRODUCED GPI Santekhproekt Gosstroy USSR.
PREPARED FOR APPROVAL by the Glavtekhnormirovaniye Gosstroy USSR B. V. Tambovtsev).
With the entry into force of SNiP 2.04.01-85 "Internal water supply and sewerage of buildings", SNiP II-30-76 "Internal water supply and sewerage of buildings" and SNiP II-34-76 "Hot water supply" are being lost.
AGREED BY the Ministry of Health of the USSR, GUPO of the Ministry of Internal Affairs of the USSR.
When using a regulatory document, one should take into account the approved changes in building codes and regulations and state standards published in the journal„ Construction Equipment Bulletin",„ Collection of amendments to building norms and rules "Gosstroy of the USSR and information index„ State standards of the USSR "Gosstandart.
Decree of the Gosstroy of the USSR
No. - 20 dated 11/28/91
Putting the change into effect
Developer: SantekhNIIproekt
Gosstroy of the USSR
CHANGE # - 1
SNiP 2.04.01-85
"INTERNAL WATER SUPPLY AND SEWERAGE OF BUILDINGS"
Clause 6.1. In the first paragraph, the words: "auxiliary buildings" shall be replaced by the words: "administrative buildings".
Table 1. In the heading of the first column, the words: "auxiliary buildings" shall be replaced by the words: "administrative buildings";
in position 3 of the table, columns 2 and 3 shall be reworded: "according to SNiP 2.08.02-89";
in position 5 of the table in the first column, the words: "auxiliary buildings" shall be replaced by the words: "administrative buildings";
Note 2 to the table shall be amended as follows:
"2. The construction volume, determined in accordance with SNiP 2.08.02-89, is taken as the volume of the building."
Clause 6.3 to state in a new edition:
"6.3. In production and storage buildings, for which, in accordance with Table 2, the need for an internal fire-fighting water supply is established, the minimum water consumption for internal fire extinguishing, determined according to Table 2, should be increased:
when using frame elements from unprotected steel structures in buildings of III and IVa degrees of fire resistance, as well as from solid or glued wood (including those subjected to fire retardant treatment) - by 5 l / s (one jet);
when used in building envelopes of IVa degree of fire resistance of heaters made of combustible materials - by 5 l / s (one jet) for buildings with a volume of up to 10 thousand m 3; with a volume of more than 10 thousand m 3 additionally by 5 l / s (one jet) for each subsequent full or incomplete 100 thousand m 3 of volume.
The requirements of this paragraph do not apply to buildings for which, in accordance with Table. 2 internal fire water supply is not required to be provided.
Clause 6.5. In the first paragraph, the words: "should not" be replaced by the words: "not required";
in subparagraph b) after the words: "general education schools" the text shall be supplemented with the words: "except for boarding schools,";
in subparagraph e) delete the words: "from non-combustible materials";
in subparagraph f) the words: "auxiliary buildings" shall be replaced by the words: "administrative buildings";
subparagraph g) shall be reworded as follows:
"g) in the buildings of warehouses for roughage, pesticides and mineral fertilizers";
subparagraph h) to exclude;
in the note to the paragraph, delete the words: "from non-combustible materials".
Clause 6.6. Paragraphs five, six and note to the paragraph shall be deleted.
| Content |
|---|
Unofficial edition
SNiP 2.04.01-85*
BUILDING REGULATIONS
INDOOR WATER SUPPLY AND
SEWERAGE OF BUILDINGS
Introduction date 1986-07-01
GPI Santekhproekt of Gosstroy of the USSR (Yu.N. Sargin), TsNIIEP of engineering equipment of Gosgrazhdanstroy (Candidate of Technical Sciences L.A. Shopensky), MNIITEP GlavAPU of the Moscow City Executive Committee (Candidate of Technical Sciences N.N. Chistyakov; I.B. Pokrovskaya) ), Donetsk Industrial Construction Project of the USSR State Construction Committee (E.M. Zaitseva), SKTB Rostrubplast of the Roskolkhozstroyobedinenie (Candidate of Technical Sciences A.Ya. Dobromyslov), Research Institute Mosstroy (Candidate of Technical Sciences Ya.B. Alesker), NPO | Stroypolymer "( prof. V.S.
INTRODUCED GPI Santekhproekt Gosstroy USSR.
PREPARED FOR APPROVAL by the Main Technical Regulation of the USSR Gosstroy (Ministry of Construction of Russia) - B.V. Tambovtsev, V.A. Glukharev.
APPROVED by the Decree of the USSR State Committee for Construction of October 4, 1985 No. 189.
AGREED BY the Ministry of Health of the USSR, GUPO of the Ministry of Internal Affairs of the USSR.
INSTEAD OF SNiP II-30-76 and SNiP II-34-76.
SNiP 2.04.01-85* is a reissue of SNiP 2.04.01-85 with Amendment No. 1, approved by Decree of the USSR Gosstroy No. 20 of November 28, 1991, and Amendment No. 2, approved by Decree of the Ministry of Construction of Russia of July 11, 1996 No. 18 -46.
Items and tables that have been amended are marked in these building codes and rules with an asterisk.
1. GENERAL PROVISIONS
1.1. These standards apply to the design of under construction and reconstructed systems of internal cold and hot water supply, sewerage and drains.
1.2. When designing systems for internal cold and hot water supply, sewerage and drains, it is necessary to comply with the requirements of other regulatory documents approved or agreed by the Ministry of Construction of Russia.
1.3. These standards do not apply to the design of:
fire water supply systems of enterprises producing or storing explosive, flammable and combustible substances, as well as other objects, the requirements for the internal fire water supply of which are established by the relevant regulatory documents;
automatic fire extinguishing systems;
thermal points;
hot water treatment plants;
hot water supply systems supplying water for the technological needs of industrial enterprises (including medical procedures) and water supply systems within the technological equipment;
systems of special industrial water supply (deionized water, deep cooling, etc.).
1.4. Internal water supply - a system of pipelines and devices that provides water supply to sanitary appliances, fire hydrants and technological equipment, serving one building or a group of buildings and structures and having a common water metering device from the water supply network of a settlement or industrial enterprise.
In the case of water supply from the system for external fire extinguishing, the design of pipelines laid outside buildings must be carried out in accordance with SNiP 2.04.02-84 *.
Internal sewerage - a system of pipelines and devices in a volume limited by the outer surfaces of the enclosing structures and outlets to the first manhole, which ensures the discharge of wastewater from sanitary appliances and process equipment and, if necessary, local treatment facilities, as well as rain and melt water into the sewerage network the corresponding purpose of the settlement or industrial enterprise.
Notes: 1. Hot water preparation should be provided on
installations in accordance with the guidelines for the design of thermal
points and thermal units.
2. Installations of local wastewater treatment should be designed in
in accordance with SNiP 2.04.03-85 and departmental building codes.
1.5. In all types of buildings erected in sewered areas, internal water supply and sewerage systems should be provided.
In non-sewered areas of settlements, internal water supply and sewerage systems with the installation of local sewage treatment facilities must be provided in residential buildings with a height of more than two floors, hotels, nursing homes (in rural areas), hospitals, maternity hospitals, clinics, outpatient clinics, dispensaries, sanitary and epidemiological stations, sanatoriums, rest homes, boarding houses, pioneer camps, kindergartens, boarding schools, educational institutions, secondary schools, cinemas, clubs, catering establishments, sports facilities, baths and laundries.
Notes: 1. In production and auxiliary buildings
internal water supply and sewerage systems are allowed not
provide for in cases where the enterprise does not have
centralized water supply and the number of employees is not more than
25 people in shift.
2. In buildings equipped with internal utility and drinking or
industrial water supply, it is necessary to provide a system
internal sewerage.
1.6. In non-sewered areas of settlements, it is allowed to equip the following buildings (structures) with backlash closets or cesspools (without plumbing inlets):
production and auxiliary buildings of industrial enterprises with up to 25 employees. in shift;
residential buildings with a height of 1-2 floors;
hostels with a height of 1-2 floors for no more than 50 people;
pioneer camps for no more than 240 places, used only in the summer;
type I clubs;
open planar sports facilities;
catering establishments for no more than 25 seats.
Note. Backlash closets are allowed to be provided when
designing buildings for I-III climatic regions.
1.7. The need for internal drains is established by the architectural and construction part of the project.
1.8. 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, state standards, norms and specifications approved in the prescribed manner.
When transporting and storing drinking water, pipes, materials and anti-corrosion coatings approved by the Russian Glavsanepidnadzor for use in the practice of domestic and drinking water supply should be used.
1.9. The main technical decisions taken in the projects and the sequence of their implementation must be justified by comparing the indicators of possible options. Technical and economic calculations should be carried out for those options, the advantages (disadvantages) of which cannot be established without calculation.
The optimal calculation option is determined by the smallest value of the reduced costs, taking into account the reduction in the consumption of material resources, labor costs, electricity and fuel.
1.10. When designing, it is necessary to provide for the use of progressive technical solutions and methods of work: the mechanization of labor-intensive work, the automation of technological processes and the maximum industrialization of construction and installation work through the use of prefabricated structures, standard and standard products and parts manufactured in factories and procurement workshops.
1.11. The main letter designations adopted in these standards are given in mandatory Appendix 1.
2. QUALITY AND TEMPERATURE OF WATER
IN WATER SUPPLY SYSTEMS
2.1. The quality of cold and hot water supplied for household and drinking needs must comply with GOST 2874-82 *. The quality of water supplied for production needs is determined by technological requirements.
2.2. The temperature of hot water in the places of water intake should be provided:
a) not lower than 60 ° C - for centralized hot water supply systems connected to open heat supply systems;
b) not lower than 50°C - for centralized hot water supply systems connected to closed heat supply systems;
c) not higher than 75°C - for all systems specified in subparagraphs |a" and |b".
2.3. 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.
2.4. At public catering establishments and for other water consumers who need hot water with a temperature higher than that specified in clause 2.2, local water heaters should be provided for reheating water.
2.5. The temperature of the hot water supplied by the water heaters to the distribution pipelines of the centralized hot water supply systems must comply with the recommendations of the heating substation design manual.
2.6. In settlements and enterprises where sources of drinking water supply do not provide all the needs of consumers, with a feasibility study and in agreement with the bodies of the sanitary and epidemiological service, it is allowed to supply non-potable water to urinals and toilet flush tanks.
3. DETERMINATION OF ESTIMATED COSTS
WATER IN WATER SUPPLY AND
SEWER AND HEAT FOR NEEDS
HOT WATER
3.1. Cold, hot water supply and sewerage systems must provide water supply and wastewater disposal (flow rate) corresponding to the estimated number of water consumers or installed sanitary appliances.
assigned to one device, it is necessary to determine:
a separate device - according to mandatory Appendix 2;
various devices serving the same water consumers in the section of the dead-end network - in accordance with the mandatory Appendix 3;
various devices serving different water consumers - according to the formula
should be determined for the network as a whole and taken the same for all
plots.
2. In residential and public buildings and structures, for which
no information on water consumption and technical characteristics
sanitary appliances, it is allowed to accept:
l / s, should be determined by the formula
| (2) |
| where | - second water flow, the value of which should be determined according to clause 3.2; |
||||
| - coefficient determined according to the recommended application 4 depending on the total number of devices N in the calculated area networks and the probability of their action P, calculated according to clause 3.4. At be guided by P > 0.1 and N<= 200; при других значениях Р и N |
|||||
| coefficient | should be taken according to the table. 2 recommended | ||||
| applications 4. | |||||
With known calculated values P, N and values q(0) = 0.1; 0.14; 0.2; 0.3 l / s to calculate the maximum second water flow, it is allowed to use nomograms 1-4 of the recommended Appendix 4.
Notes: 1. Water flow at the end sections of the network should be
take according to the calculation, but not less than the maximum second flow rate
water by one of the installed sanitary appliances.
2. Water consumption for technological needs of industrial enterprises
should be defined as the sum of water consumption by technological
equipment, provided that the operation of the equipment coincides in time.
3. For auxiliary buildings of industrial enterprises, the value of q
can be defined as the sum of water consumption for domestic needs according to
formula (2) and shower needs - according to the number of installed shower nets according to
mandatory application 2.
b) with different groups of water consumers in the building (buildings) or structure (structures) for various purposes
| (4) |
Notes: 1. In the absence of data on the number of sanitary
devices in buildings or structures, the value of P is allowed to be determined
according to formulas (3) and (4), assuming N = 0.
2. With several groups of water consumers, for which periods
the highest water consumption will not coincide with the time of day,
the probability of operation of devices for the system as a whole is allowed
calculate according to formulas (3) and (4) taking into account reduction factors,
determined during the operation of similar systems.
and hot water supply serving a group of devices, according to the formula
a) with the same water consumers in the building (buildings) or structure (structures) in accordance with the mandatory Appendix 3;
b) with different water consumers in the building (buildings) or structure (structures) - according to the formula
in general should be determined by the formula
according to the formula
 |
(8) |
| where | - coefficient determined according to the recommended appendix 4 in depending on the total number of devices N served by the projected |
||||||||||
| system, and the likelihood of their use | , calculated according to clause 3.7. | ||||||||||
| At the same time, Table 1 recommended application 4 to be guided | |||||||||||
| at | > 0.1 and N<=200, при других значениях | and N coefficient | |||||||||
| should be taken according to the table. 2 recommended apps 4. | |||||||||||
Note. For auxiliary buildings of industrial enterprises
the use of showers and household and drinking needs, taken according to
mandatory Annex 3 on the number of water users in the most
numerous shifts.
3.10. When designing direct water intake from the pipelines of the heating network for the needs of hot water supply, the average temperature of hot water in the water risers should be maintained at 65 ° C, and the hot water consumption rates should be taken in accordance with the mandatory Appendix 3 with a coefficient of 0.85, while the total amount of water consumed should not be changed .
3.11. The maximum hourly wastewater flow rate should be taken equal to the estimated flow rates determined in accordance with clause 3.8.
3.12. The daily water consumption should be determined by summing up the water consumption by all consumers, taking into account the water consumption for irrigation. The daily consumption of wastewater must be taken equal to water consumption, excluding the consumption of water for irrigation.
a) during the average hour
WATER PIPES
4. COLD WATER PIPE SYSTEMS
4.1. Internal water supply systems (domestic, industrial, fire-fighting) include: inputs to buildings, water metering units, distribution network, risers, connections to sanitary appliances and technological installations, water folding, mixing, shut-off and control valves. Depending on local conditions and production technology, pumping units and spare and control tanks connected to the internal water supply system should be included in the internal water supply system.
4.2. The choice of an internal water supply system should be made depending on the technical and economic feasibility, sanitary and hygienic and fire safety requirements, as well as taking into account the accepted external water supply system and the requirements of production technology.
Connection of utility and drinking water supply networks with water supply networks supplying water of non-potable quality is not allowed.
4.3. For groups of buildings that differ in height by 10 m or more, measures should be taken to ensure the required water pressure in the water supply systems of these buildings.
4.4. Industrial water supply systems must meet technological requirements and not cause corrosion of equipment and pipelines, salt deposits and biological fouling of pipes and devices.
4.5. In buildings (structures), depending on their purpose, the following internal water supply systems should be provided:
household and drinking;
fire fighting;
production (one or more).
The fire water supply system in buildings (structures) with domestic drinking or industrial water supply systems should, as a rule, be combined with one of them.
4.6. In industrial and auxiliary buildings, depending on the requirements of production technology and in accordance with the instructions for the construction design of enterprises, buildings and structures of various industries, to reduce water consumption, systems of circulating water supply and water reuse should be provided.
Note. When justifying the revolving system, it is allowed not to
provide.
4.7. Circulating water supply systems for cooling technological solutions, products and equipment, if technically possible, should be designed, as a rule, without breaking the jet with water supply to the coolers using the residual head.
4.8. When designing water supply systems, it is necessary to provide for measures to reduce wasteful water consumption and reduce noise.
5. HOT WATER SUPPLY SYSTEMS
5.1. Depending on the mode and volume of hot water consumption for household and drinking needs of buildings and structures for various purposes, centralized water supply systems or local water heaters should be provided.
Note. If hot drinking water supply is required
quality for technological needs, it is allowed to provide for the supply
hot water at the same time for household and drinking and technological
5.2. It is not allowed to connect pipelines of the hot water supply system with pipelines supplying hot water of non-potable quality for technological needs, as well as direct contact with process equipment and hot water installations supplied to the consumer with a possible change in its quality.
5.3. The choice of a scheme for heating and treating water for centralized hot water supply systems should be made in accordance with SNiP 2.04.07-86 * and | Guidelines for the design of heat points.
5.4. In systems of centralized hot water supply, provision should be made for the placement of water heating points, as a rule, in the center of the hot water consumption area.
5.5. It is allowed not to provide for the circulation of hot water in centralized hot water supply systems with a time-regulated consumption of hot water, if its temperature at the points of water intake does not decrease below that established in Sec. 2 of these rules.
5.6. * In buildings and premises of medical institutions, preschool and residential buildings in bathrooms and showers, it is necessary to provide for the installation of heated towel rails connected to hot water supply systems, as a rule, according to a scheme that ensures their constant heating with hot water.
Notes: 1. When supplying hot water with centralized
hot water supply, connected to heating networks with
direct water intake, it is allowed to attach
heated towel rails for independent heating systems
year-round operation of bathrooms and showers.
2. On heated towel rails, shut-off valves should be provided
to turn them off during the summer.
5.7. In residential and public buildings with a height of more than 4 floors, groups of water risers should be combined with ring jumpers into sectional units with each sectional 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 under a layer of thermal insulation, 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 water risers from above.
Note. It is allowed not to loop water risers when
the length of the ring jumper, exceeding the total
the length of the circulation risers.
5.8. In buildings with a height of up to 4 floors, as well as in buildings in which there is no possibility of laying ring jumpers, it is allowed to install heated towel rails:
on the circulation risers of the hot water supply system;
on a year-round bathroom heating system, while water risers and distributing pipelines should be laid together with heating pipelines in general insulation.
5.9. Connection of water folding devices to circulation risers and circulation pipelines is not allowed.
5.10. For rural settlements and settlements, the choice of the type of hot water supply system is determined by a technical and economic calculation.
5.11. The installation of storage tanks in the centralized hot water supply system should be provided in accordance with Sec. thirteen.
5.12.* The pressure in the hot water supply system for sanitary appliances should be no more than 0.45 MPa (4.5 kgf / sq. cm).
6. FIRE-FIGHTING WATER SUPPLY SYSTEMS
6.1. * For residential and public buildings, as well as administrative buildings of industrial enterprises, 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 Table. 1 *, and for industrial and storage buildings - in accordance with table. 2.
The water consumption for fire extinguishing, depending on the height of the compact part of the jet and the diameter of the spray, should be specified according to Table. 3.
The need to install automatic fire extinguishing systems should be accepted in accordance with the requirements of the relevant estimated norms and rules and lists of buildings and premises to be equipped with automatic fire extinguishing equipment approved by the ministries. In this case, the simultaneous operation of fire hydrants and sprinkler or deluge installations should be taken into account.
Table 1*
| residential, public and administrative buildings and premises |
Number | Minimum water consumption for internal fire extinguishing, l / s, per jet |
|
1. Residential buildings: |
||
| with the number of floors from 12 to 16 | 1 | 2,5 |
| the same, with a total length of the corridor over 10 m | 2 | 2,5 |
| with the number of floors of St. 16 to 25 | 2 | 2,5 |
| the same, with the total length of the corridor of St. 10 m | 3 | 2,5 |
| 2. Office buildings: | ||
| height from 6 to 10 floors and volume up to | 1 | 2,5 |
| 2 | 2,5 | |
| 2 | 2,5 | |
| the same, the volume of St. 25000 cubic meters | 3 | 2,5 |
| 3. Clubs with a stage, theaters, cinemas, assembly and conference halls equipped with cinema equipment | According to SNiP 2.08.02-89* | |
| 4. Hostels and public buildings not listed in pos. 2: | ||
| with the number of floors up to 10 and volume from 5000 to 25000 cubic meters |
1 | 2,5 |
| the same, the volume of St. 25000 cubic meters | 2 | 2,5 |
| with the number of floors of St. 10 and up to | 2 | 2,5 |
| the same, the volume of St. 25000 cubic meters | 3 | 2,5 |
| 5. Administrative buildings industrial enterprises volume, cubic meters: |
||
| from 5000 to 25000 | 1 | 2,5 |
| St. 25000 | 2 | 2,5 |
| Notes: 1. The minimum water consumption for residential buildings is allowed to be taken equal to 1.5 l / s in the presence of fire hoses, hoses and other equipment with a diameter of 38 mm. 2*. The building volume is taken as the volume of the building, determined in accordance with SNiP 2.08.02-89*. |
||
table 2
| The degree of og- | Number of jets and minimum water consumption, l/s, per jet, for internal fire extinguishing in industrial and warehouse buildings up to 50 m high and volume, thousand cubic meters |
|||||
| from 0.5 to 5 | St. 5 to 50 | St. 50 to 200 | St. 200 to 400 | St. 400 to 800 | ||
| III | V | 2 2.5 | 2 5 | 2 5 | - | - |
| III | G, D | - | 2 2.5 | 2 2.5 | - | - |
| IV and V | V | 2 2.5 | 2 5 | - | - | - |
| IV and V | G, D | - | 2 2.5 | - | - | - |
| Notes: 1. For laundry factories, fire extinguishing should be provided in the premises for processing and storing dry linen. 2. Water consumption for internal fire extinguishing in buildings or premises with a volume exceeding the values \u200b\u200bspecified in Table. 2, should be agreed in each case with the territorial fire authorities. 3. The number of jets and the water consumption of one jet for buildings of the degree of fire resistance: IIIb - buildings of predominantly frame construction. Frame elements made of solid or glued wood and other combustible building envelope materials (mainly wood) subjected to fire retardant treatment; IIIa - buildings mainly with an unprotected metal frame and enclosing structures made of fireproof sheet materials with slow-burning insulation; IVa - buildings predominantly one-story with a metal unprotected frame and enclosing structures made of sheet non-combustible materials with combustible insulation are accepted according to the specified table, depending on the placement of production categories in them, both for buildings of II and IV degrees of fire resistance, taking into account the requirements of paragraph 6.3 * (equating the degree of fire resistance IIIa to II, IIIb and IVa to IV). |
||||||
Table 3
| The height of the compact part of the jet or | Produc- validity fire department jets, l/s |
Head, m, y hot tap with sleeves length, m |
Produc- validity fire department jets, l/s |
Head, m, y hot tap with sleeves length, m |
Produc- validity fire department jets, l/s |
Head, m, y hot tap with sleeves length, m |
||||||||||||||||
| premises, | 10 | 15 | 20 | 10 | 15 | 20 | 10 | 15 | 20 | |||||||||||||
| m | Fire hose tip spray diameter, mm | |||||||||||||||||||||
| 13 | 16 | 19 | ||||||||||||||||||||
|
Fire hydrants d = 50 mm |
||||||||||||||||||||||
| 6 | - | - | - | - | 2,6 | 9,2 | 9,6 | 10 | 3,4 | 8,8 | 9,6 | 10,4 | ||||||||||
| 8 | - | - | - | - | 2,9 | 12 | 12,5 | 13 | 4,1 | 12,9 | 13,8 | 14,8 | ||||||||||
| 10 | - | - | - | - | 3,3 | 15,1 | 15,7 | 16,4 | 4,6 | 16 | 17,3 | 18,5 | ||||||||||
| 12 | 2,6 | 20,2 | 20,6 | 21 | 3,7 | 19,2 | 19,6 | 21 | 5,2 | 20,6 | 22,3 | 24 | ||||||||||
| 14 | 2,8 | 23,6 | 24,1 | 24,5 | 4,2 | 24,8 | 25,5 | 26,3 | - | - | - | - | ||||||||||
| 16 | 3,2 | 31,6 | 32,2 | 32,8 | 4,6 | 29,3 | 30 | 31,8 | - | - | - | - | ||||||||||
| 18 | 3,6 | 39 | 39,8 | 40,6 | 5,1 | 36 | 38 | 40 | - | - | - | - | ||||||||||
|
Fire hydrants d = 65 mm |
||||||||||||||||||||||
| 6 | - | - | - | - | 2,6 | 8,8 | 8,9 | 9 | 3,4 | 7,8 | 8 | 8,3 | ||||||||||
| 8 | - | - | - | - | 2,9 | 11 | 11,2 | 11,4 | 4,1 | 11,4 | 11,7 | 12,1 | ||||||||||
| 10 | - | - | - | - | 3,3 | 14 | 14,3 | 14,6 | 4,6 | 14,3 | 14,7 | 15,1 | ||||||||||
| 12 | 2,6 | 19,8 | 19,9 | 20,1 | 3,7 | 18 | 18,3 | 18,6 | 5,2 | 18,2 | 19 | 19,9 | ||||||||||
| 14 | 2,8 | 23 | 23,1 | 23,3 | 4,2 | 23 | 23,3 | 23,5 | 5,7 | 21,8 | 22,4 | 23 | ||||||||||
| 16 | 3,2 | 31 | 31,3 | 31,5 | 4,6 | 27,6 | 28 | 28,4 | 6,3 | 26,6 | 27,3 | 28 | ||||||||||
| 18 | 3,6 | 38 | 38,3 | 38,5 | 5,1 | 33,8 | 34,2 | 34,6 | 7 | 32,9 | 33,8 | 34,8 | ||||||||||
| 20 | 4 | 46,4 | 46,7 | 47 | 5,6 | 41,2 | 41,8 | 42,4 | 7,5 | 37,2 | 38,5 | 39,7 | ||||||||||
SNiP 2.04.01-85*
Building regulations
Internal plumbing and sewerage of buildings.
Systems of internal cold and hot water supply
1. General Provisions
1.1. These standards apply to the design of under construction and reconstructed systems of internal cold and hot water supply, sewerage and drains.
1.2. When designing systems for internal cold and hot water supply, sewerage and drains, it is necessary to comply with the requirements of other regulatory documents approved or agreed by the Ministry of Construction of Russia.
1.3. These standards do not apply to the design of:
fire water supply systems of enterprises producing or storing explosive, flammable and combustible substances, as well as other objects, the requirements for the internal fire water supply of which are established by the relevant regulatory documents;
automatic fire extinguishing systems;
thermal points;
hot water treatment plants;
hot water supply systems supplying water for the technological needs of industrial enterprises (including medical procedures) and water supply systems within the technological equipment;
systems of special industrial water supply (deionized water, deep cooling, etc.).
1.4. Internal water supply - a system of pipelines and devices that provides water supply to sanitary appliances, fire hydrants and technological equipment, serving one building or a group of buildings and structures and having a common water metering device from the water supply network of a settlement or industrial enterprise.
In the case of water supply from the system for external fire extinguishing, the design of pipelines laid outside buildings must be carried out in accordance with SNiP 2.04.02-84 *.
Internal sewerage - a system of pipelines and devices in a volume limited by the outer surfaces of the enclosing structures and outlets to the first manhole, which ensures the discharge of wastewater from sanitary appliances and process equipment and, if necessary, local treatment facilities, as well as rain and melt water into the sewerage network the corresponding purpose of the settlement or industrial enterprise.
Notes:
1. The preparation of hot water should be provided at the installations in accordance with the guidelines for the design of heating points and heating units.
2. Installations for local wastewater treatment should be designed in accordance with SNiP 2.04.03-85 and departmental building codes.
1.5. In all types of buildings erected in sewered areas, internal water supply and sewerage systems should be provided.
In non-sewered areas of settlements, internal water supply and sewerage systems with the installation of local sewage treatment facilities must be provided in residential buildings with a height of more than two floors, hotels, nursing homes (in rural areas), hospitals, maternity hospitals, clinics, outpatient clinics, dispensaries, sanitary and epidemiological stations, sanatoriums, rest homes, boarding houses, pioneer camps, kindergartens, boarding schools, educational institutions, secondary schools, cinemas, clubs, catering establishments, sports facilities, baths and laundries.
Notes:
1. 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.
2. In buildings equipped with internal domestic drinking or industrial water supply, it is necessary to provide an internal sewerage system.
1.6. In non-sewered areas of settlements, it is allowed to equip the following buildings (structures) with backlash closets or cesspools (without plumbing inlets):
production and auxiliary buildings of industrial enterprises with up to 25 employees. in shift;
residential buildings with a height of 1-2 floors;
hostels with a height of 1-2 floors for no more than 50 people;
pioneer camps for no more than 240 places, used only in the summer;
type I clubs;
open planar sports facilities;
catering establishments for no more than 25 seats.
Note. Backlash closets are allowed to be provided when designing buildings for I-III climatic regions. .
1.7. The need for internal drains is established by the architectural and construction part of the project.
1.8. 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, state standards, norms and specifications approved in the prescribed manner.
When transporting and storing drinking water, pipes, materials and anti-corrosion coatings approved by the Russian Glavsanepidnadzor for use in the practice of domestic and drinking water supply should be used.
1.9. The main technical decisions taken in the projects and the sequence of their implementation must be justified by comparing the indicators of possible options. Technical and economic calculations should be carried out for those options, the advantages (disadvantages) of which cannot be established without calculation.
The optimal calculation option is determined by the smallest value of the reduced costs, taking into account the reduction in the consumption of material resources, labor costs, electricity and fuel.
1.10. When designing, it is necessary to provide for the use of progressive technical solutions and methods of work: the mechanization of labor-intensive work, the automation of technological processes and the maximum industrialization of construction and installation work through the use of prefabricated structures, standard and standard products and parts manufactured in factories and procurement workshops.
1.11. The main letter designations adopted in these standards are given in the mandatory
USSR STATE COMMITTEE FOR CONSTRUCTION
BUILDING REGULATIONS
Internal water supply and sewerage of buildings SNiP 2.04.01-85*
GPI Santekhproekt of Gosstroy of the USSR (Yu. N. Sargin), TsNIIEP of engineering equipment of Gosgrazhdanstroy (Candidate of Technical Sciences L. A. Shopensky), MNIITEP GlavAPU of the Moscow City Executive Committee (Candidate of Technical Sciences N. N. Chistyakov; I. B. Pokrovskaya) ), Donetsk Industrial Construction Project of the State Construction Committee of the USSR (E. M. Zaitseva), SKTB Rostrubplast of the Roskolkhozstroyobedinenie (Candidate of Technical Sciences A. Ya. Dobromyslov), Research Institute Mosstroy (Candidate of Technical Sciences Ya. B. Alesker), NPO "Stroypolymer" ( Prof. V. S. Romeiko, V. A. Ustyugov), Moscow State University of Civil Engineering (Prof. V. N. Isaev), Mosvodokanalproekt (A. S. Verbitsky).
INTRODUCED GPI Santekhproekt Gosstroy USSR.
PREPARED FOR APPROVAL by the Glavtekhnormirovaniye of the Gosstroy of the USSR (Gosstroy of the USSR) - B.V. Tambovtsev, V.A. Glukharev.
AGREED BY the Ministry of Health of the USSR, GUPO of the Ministry of Internal Affairs of the USSR.
SNiP 2.04.01-85* is a reissue of SNiP 2.04.01-85 with amendments No. 1, 2, approved by the Decree of the USSR Gosstroy of November 28, 1991 No. 20, of July 11, 1996 No. 18-46 and amendments introduced by letter Gosstroy of the USSR dated May 6, 1987 No. ACh-2358-8.
Items and tables that have been amended are marked in these building codes and rules with an asterisk.
When using a regulatory document, one should take into account the approved changes in building codes and regulations and state standards published in the Bulletin of Construction Equipment magazine and the State Standards information index.
1. General Provisions
1.1 .These standards apply to the design of internal cold and hot water supply systems, sewerage and drains under construction and reconstruction. .
1.2. When designing systems for internal cold and hot water supply, sewerage and drains, it is necessary to comply with the requirements of other regulatory documents approved or agreed by the Ministry of Construction of Russia.
1 . 3. These standards do not apply to the design of:
fire water supply systems of enterprises producing or storing explosive, flammable and combustible substances, as well as other objects, the requirements for the internal fire water supply of which are established by the relevant regulatory documents;
automatic fire extinguishing systems;
thermal points;
hot water treatment plants;
hot water supply systems supplying water for the technological needs of industrial enterprises (including medical procedures) and water supply systems within the technological equipment;
systems of special industrial water supply (deionized water, deep cooling, etc.).
1.4. Internal water supply - a system of pipelines and devices that provides water supply to sanitary appliances, fire hydrants and technological equipment, serving one building or a group of buildings and structures and having a common water metering device from the water supply network of a settlement or industrial enterprise.
In the case of water supply from the system for external fire extinguishing, the design of pipelines laid outside buildings must be carried out in accordance with SNiP 2.04.02-84 *.
Internal sewerage - a system of pipelines and devices in a volume limited by the outer surfaces of the enclosing structures and outlets to the first manhole, which ensures the discharge of wastewater from sanitary appliances and process equipment and, if necessary, local treatment facilities, as well as rain and melt water into the sewerage network the corresponding purpose of the settlement or industrial enterprise.
Notes: 1. The preparation of hot water should be provided at the installations in accordance with the guidelines for the design of heating points and heating units.
2. Installations for local wastewater treatment should be designed in accordance with SNiP 2.04.03-85 and departmental building codes.
1.5. In all types of buildings erected in sewered areas, internal water supply and sewerage systems should be provided.
In non-sewered areas of settlements, internal water supply and sewerage systems with the installation of local sewage treatment facilities must be provided in residential buildings with a height of more than two floors, hotels. nursing homes (in rural areas), hospitals, maternity hospitals, polyclinics, outpatient clinics, dispensaries, sanitary and epidemiological stations, sanatoriums, rest homes, boarding houses, pioneer camps, nurseries, kindergartens, boarding schools, educational institutions, secondary schools, cinemas, clubs , public catering establishments, sports facilities, baths and laundries.
Notes: 1. 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.
2. In buildings equipped with internal domestic drinking or industrial water supply, it is necessary to provide an internal sewerage system.
1.6. In non-sewered areas of settlements, it is allowed to equip the following buildings (structures) with backlash closets or cesspools (without plumbing inlets):
production and auxiliary buildings of industrial enterprises with the number of employees up to 25 people. in shift;
residential buildings with a height of 1-2 floors;
dormitories with a height of 1-2 floors for no more than 50 people;
pioneer camps for no more than 240 places, used only in the summer;
type I clubs;
open planar sports facilities;
catering establishments for no more than 25 seats.
Note. Backlash closets are allowed to be provided when designing buildings for I-III climatic regions.
1.7 . The need for internal drains is established by the architectural and construction part of the project.
1.8. 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, state standards, norms and specifications approved in the prescribed manner.
When transporting and storing drinking water, pipes, materials and anti-corrosion coatings approved by the Russian Glavsanepidnadzor for use in the practice of domestic and drinking water supply should be used.
1.9. The main technical decisions taken in the projects and the sequence of their implementation must be justified by comparing the indicators of possible options. Technical and economic calculations should be carried out for those options, the advantages (disadvantages) of which cannot be established without calculation.
The optimal calculation option is determined by the smallest value of the reduced costs, taking into account the reduction in the consumption of material resources, labor costs, electricity and fuel.
1.10. When designing, it is necessary to provide for the use of progressive technical solutions and methods of work: the mechanization of labor-intensive work, the automation of technological processes and the maximum industrialization of construction and installation work through the use of prefabricated structures, standard and standard products and parts manufactured in factories and procurement workshops.
1.11. The main letter designations adopted in these standards are given in mandatory Appendix 1.