Rules For The Latvian Et Seq Of The Lbn 221-15 "building An Internal Water Pipes And Sewerage"

Original Language Title: Noteikumi par Latvijas būvnormatīvu LBN 221-15 "Ēku iekšējais ūdensvads un kanalizācija"

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Read the untranslated law here: https://www.vestnesis.lv/op/2015/125.7


Cabinet of Ministers Regulations No. 332 in 2015 (30 June. No 30 52) provisions on the Latvian et seq of the LBN 221-15 "building an internal water pipes and sewerage" Issued in accordance with article 5 of the law on construction of the first subparagraph of paragraph 3 1. Latvian et seq of the LBN approved 221-15 "building an internal water pipes and sewage" (hereinafter referred to as the Latvian et seq of the LBN 221-15). 2. The Ministry of economy in cooperation with the relevant technical standards Committee recommends that national bodies for standardisation in relation to these provisions, the reliance and designing standard applicable list. 3. National standardisation body shall publish the www.lvs.lv tīmekļvietn their national list of the standards that apply to the Latvian et seq of the LBN 221-15. 4. Projects which are developed in or submitted to the būvvald reconciliation rules for the entry into force of the corresponding period in the normative requirements need not be processed according to the Latvian et seq of the LBN 221-15. The Prime Minister is the Rapidity of the Newsletters instead of Minister of Economics, Minister of health of the Ministry of economy Guntis Belēvič submitted version of the approved by the Cabinet of Ministers of 30 June 2015 regulations No 332 Latvian et seq of the LBN 221-15 "building an internal water pipes and sewerage" 1. General questions 1. This requires new et seq and pārbūvējam building internal cold and hot water tap, municipal sewage and rainwater drainage system for the design, as well as the conversion of the inženiertīkl. 2. Et SEQ does not apply to the following object design: 2.1 for fire water supply system in buildings and structures which the fire requirements determine the regulatory documents; 2.2. automatic fixed fire-fighting systems; 2.3. the siltummezgl of water supplies; 2.4. the hot water treatment facilities; 2.5. the production and technological equipment, including medical procedure water supply system. 3. building internal plumbing, household sewage and rainwater drainage system design standards which are applied in the list on the internet site www.lvs.lv is published by the national standardization bodies. 4. building the internal are equipment and pipeline water system that provides consumers a single building or group of buildings with water from the water supply network through common water metering node. If water is taken from the internal water external fire-fighting, to respect Latvian et seq of the LBN 222 water supply structures. 5. building internal drainage is to the external walls of buildings designated equipment and pipeline system that provides technical and sanitary-technological equipment for the discharge of waste water from building up the first manhole. If necessary, the project provides for the local water treatment installations, as well as the discharge of sewage overflows. 6. All buildings that are being constructed in the area, which has created external sewerage network, to the ieprojekt internal water pipes and sewers. If buildings are built in the area, where there is no outer sewerage network, it is necessary to ensure the collection and management according to the Latvian et seq of the sewer construction 223 LBN and taking into account other existing legislation. 7. the populated places where there is no outer sewerage network, constructing or dry toilet effluent export krājtvertn the following buildings: 7.1. residential buildings, which are used only in summer; 7.2. in individual residential buildings; 7.3. production company administration and municipal buildings, as well as the production buildings, if shift work no more than 15 people. 8. where it is not possible to have local sewage treatment installations, transportable toilets shall be provided or biotualet. 9. The need to construct the buildings internal rainwater drainage network is determined by the architectural part of the project in accordance with technical rules or the design task, as well as under the roof and floors. 10. building the aqueduct, sewage and rainwater drainage system used in pipes, fittings, equipment and materials must comply with the national standard, et seq, and technical requirements. 11. Projected main technical solutions and their realization in order to be justified, comparing them with other possible options. Technical-economic calculation to perform those variants, which benefits (shortfalls) without calculation is impossible to determine. 12. Water supply and sewage system projects should be made for measures to prevent water loss, reduce noise, as well as reduce the risk of breeding legionell. 13. Internal water supply system depends on technical-economic indicators, sanitary, fire higiēniskaj and production technological requirements, as well as taking into account the external tap Options. 14. This main legend used et seq and the terms listed in annex 1 and 2. 2. Water quality and temperature of the water supply systems of household consumption in 15 easy-to-use, cold and hot water quality must comply with the legislation on minimum drinking water safety and quality requirements. Production needs of water quality determined according to technological requirements. 16. it is prohibited to combine the municipal aqueduct with water that the water does not meet drinking water quality requirements, as well as the use of municipal water pipes in construction materials that lower water quality. 17. If the water supply is a building designed from two independent external water supply systems, connecting the place must be at least 50 mm large Jet break. Both input can be connected directly, if the fitting pipe, which must be removed when running in the second input. 18. Hot water distribution site (t.sk. in each apartment) not lower than 55 ° C and not higher than 70 ° c. 19. The water flow rate and the temperature of the regulations to receive water distribution sites of the hot water supply hose provided with the circulation system, or from water heaters or the pipeline, which is in addition to the heated water, for at least 10 seconds after the water distribution fitting. Of the water distribution points, which is rarely used, as well as in individual homes, the relevant time may be longer. 20. the pre-school child institutions water temperature water distribution sites, which use the children, must not be higher than 37 ° c. 21. Catering establishments, as well as elsewhere, which requires a higher temperature than specified in that rule 18, additional heating of the water used for domestic water heater. 3. Water consumption calculation and determination of the quantity of heat in the water and sewage system, hot water supply needs 22. building water supply and sewer systems need to ensure consumers of water, or sanitary engineering devices appropriate for water supply and wastewater discharge flow rate. 23. Sanitary technical devices (water distribution fitting) consumption of water per second (l/s): 23.1. separate sanitary technical device-in accordance with this annex 3 et seq; 23.2. the various sanitary technical apparatus serving the same water consumers izzar network stage-in accordance with this annex 4 et seq; 23.3. the various sanitary technical devices serving different customers, according to the following formula: (1) 14.5. network looped sanitary technical devices water consumption per second determines the system as a whole, and accept that it is the same in all stages of the loop; 14.6. residential and public buildings, for which consumption of water and sanitary engineering devices is not news, it is assumed that: 14.7. individual sanitary technical devices water consumption levels to determine in accordance with this annex 5 et seq. 24. The maximum consumption of water per second (l/s) tap the network calculates the period is defined by the following formula (ratio-determined in accordance with annex 6 to this et seq): (2) tap water flow rate 24.1. network extremes phases determined by calculation, but it may not be less than certain sanitary technical devices maximum water consumption per second; 24.2. may not take into account the washing machine or dishwasher water consumption in residential bathroom and kitchen; building a dividing network stages where water discharged to several apartments or to more consumers, these water flow rate shall be taken into account; 24.3. the production company aquatic consumption of technological needs determined by summing the individual water consumption of technological equipment, if the operating time of the equipment the same; 15.2. block sanitary technical devices water consumption can be calculated in accordance with this annex, 3 2 et seq. Note and summarize with the formula (2) calculation and other constant consumption of the devices during the match. 25. Sanitary technical devices for probability is calculated as follows: 25.1. If water consumers in buildings or structures are identical (ignoring U and N for the changes in individual stages of calculation),-according to the following formula: (3) 25.2. If water consumers in buildings or structures are different,-according to the following formula:

(4) if there is no known health 25.3. technical devices, the probability of their use can be calculated by (3) and (4) of the formula, assuming that U = N; 25.4. If several consumer groups maximum water consumption do not coincide in time, sanitary engineering devices the use of probability is given by (3) and (4) using the formula coefficients and depressing view of an analogue system operational data. 26. the maximum consumption of Sewage per second (l/s): 26.1. If the maximum water flow rate per second in the aqueduct is qt ≤ 8 l/s,-according to the following formula: (5) 26.2. other cases according to the following formula: 26.3. water flow rate can be determined in accordance with this annex 7 et seq. 27. Separate sanitary technical devices water consumption per hour (l/h): 27.1. If water consumers in buildings or structures are the same, in accordance with this annex 4 et seq; 16.9. If water consumers in buildings or structures are different,-according to the following formula: (6) 27.3. residential and public buildings, for which sanitary technical apparatus is not news, it is assumed that: 28. Sanitary technical devices probability hour system is defined by the following formula: (7) 29. Maximum water consumption per hour (m3/h) is defined by the following formula: (8) 29.1. production company administration and municipal buildings the maximum consumption of water per hour can be determined by summing the water consumption in the shower and water consumption of household needs according to annex 4 of this et seq, and taking into account the number of consumers in the busiest shift; 29.2. the production company of engineering water consumption shall be determined in accordance with this point of 24.3. et seq. 30. the average water consumption per hour (m3/h) maximum water consumption in the period (a day or shift) is defined by the following formula: (9) 31. Open United heating and hot water supply system of hot water stāvvado to provide 65 ° C, but the hot water consumption norms fixed in accordance with this annex 4 et seq by applying a coefficient of 0.85 and without changing the total quantity of water consumed. 32. the maximum consumption of waste water per hour calculated in accordance with this paragraph 25 et seq. 33. Water consumption per day is determined by summing all consumers of water consumed and the amount of water spraying. 34. Hot water supply the necessary quantity of heat (kW) peak consumption period (a day or shift) is defined by the following formula: 34.1 average consumption. hour: (10) 21.3. maximum consumption (11) hour: 4. Water pressure aqueduct systems 35. municipal water pressure and the water systems at the lowest water distribution site must not exceed 0.6 MPa. 36. The water pressure in the fire mains systems at least in fire hydrant installed must not exceed 1.2 MPa. The water pressure in the joint municipal and fire water systems, fire extinguishing at the time the lowest installed water distribution site may not exceed 0.9 MPA, and the system hydraulic test must be carried out when it is installed, the water distribution fittings. 37. pievadcaurul water (except for the split pipeline network) water flow, regulations may be reduced by 70%. In that case the lowest water flow rate of the water distribution site may not exceed 150% of the legislative flow. Critical water distribution areas reinforcements are used, which requires less spiedienaugstum. 5. Cold water tap System 38. Buildings can be one or more of the following internal tap cold water tap systems: 38.1. municipal (drinking) water aqueduct system; 38.2. the tap System (one or more); 38.3. the fire-fighting water system; 23.9. the joint tap System. Building fire water system usually combines with municipal water systems or water production system. 39. The cold water tap in the system (municipal, industrial, fire, and United) consists of input, the meter komercuzskait node split, riser pipes, sanitary-technical devices and technological equipment as well as water control, distribution and blending fitting and noslēgarmatūr. Depending on local conditions and production technologies in the system of the internal tap can be pumping equipment, water reserve tank and regulator tanks. 40. Water supply systems to ensure the technological requirements and take measures against the machine and pipe corrosion, deposition of salts and organic fouling growth. 41. in order to reduce water consumption, buildings and constructions can be reversed and repeated in the ieprojektē water use system, if it is economically justified. 6. Hot water tap System 42. Depending on the consumer, as well as water treatment building designed for centralized hot water supply system or local heater. 43. Water heater for hot water supply systems, preferably place the consumer load Center. 44. the residential, medical and children's bathrooms and showers of the institutions ' premises required Towel warmers you prefer to connect to the hot water supply inlet of the system riser. 45. The five and higher residential and public buildings gear recommended to combine sections junctions with a total circulation of wires. Section junctions can be combined from three to eight in the riser, the upper and lower distribution by placing heated premises or in unheated spaces, if provided with heat insulation of pipelines. 46. Sanitary technical devices may not add circulation pipelines. 47. Tank batteries in centralized hot water supply systems installed in accordance with this chapter 16 et seq. 7. the fire-fighting water system 48. Fire internal water need and minimum water consumption I, II, III, IV, V and VII of usage will construct is determined in accordance with table 1 of this et seq, but usage will construct VI – according to the table 2 et seq. 49. The hydrants look yields, compact Jet operating radius, fire hoses and fire-barrel exhaust diameter shall be determined by calculation, taking into account the manufacturer's data. 50. The hydrants, fire hoses and the barrel must meet the applicable requirements of the standards. Fire hydrant set the diameter of the fire hose and barrel in accordance with the manufacturer's data and calculations. Fire tap range must not exceed 30 m. 51. Fire internal plumbing may not be provided in buildings, structures and premises fire sections, būvtilpum, height and floor count is less than the stated this 1 et seq, and in table 2. 52. If parts of the building or premises is different būvtilpum, height, width, or number of floors or rooms have different functional role of internal plumbing and fire its water consumption is determined as follows: 52.1. buildings and structures which are not divided into fire compartments, according to the building or buildings to a total būvtilpum, explosive or fire risk (if ugunsslodz is greater than 600 MJ/m2) and ugunsslodz; 52.2. buildings and structures which are different types of explosion, fire risk (if ugunsslodz is greater than 600 MJ/m2) and ugunsslodz facilities and dangerous of them is a separate fire compartment – for each building or the construction of fire protection compartment separately; 52.3. the fire compartments divided into buildings or building parts-each building or the construction of fire protection compartment separately. 53. If to the fire tap water spiedienaugstum is greater than 400 kPa, before it be water pressure regulator or pressure reducing orifice. Aperture with the same diameter can be fitted with 3-4 floor. 54. Free spiedienaugstum before the fire hydrant should ensure solid water jet to be able to delete the fire at the highest and farthest point in the building at any time. The dense water jet range must be equal to the height of the space, but not less than: 54.1. six meters-residential and public buildings, as well as the production company the production, administration and municipal buildings, which do not exceed 50 m; 54.2. eight meters – residential buildings that are higher than 50 m; 54.3. Sixteen meters-public as well as the production company the production, administration and municipal buildings, which is higher than 50 m. 55. Real water pressure at the hydrants down taking into account the loss of water pressure fire hose. 56. the duration of the hydrants is at least 45 minutes. If the fire hydrants shall be installed fixed automatic fire extinguishing systems, the operating time is equal to the system concerned. table 1

  Construction use jets number one blasted a minimum consumption (l/s) 1. I use: 1.1. desmitstāv to sešpadsmitstāv-1 1 1.2. septiņpadsmitstāv to the divdesmitpiecstāv 2 1 2. II, III, IV and V to use: 2.1. up to desmitstāv with 5000 to 25000 m3 būvtilpum of 1 1 2.2. to the desmitstāv with the būvtilpum of more than 25000 m3 2.3 2 1. desmitstāv to sešpadsmitstāv to būvtilpum to 25000 m3 2 2.5 2.4. from desmitstāv to būvtilpum more than 25000 m3 2 2.5 3. (VII) use: 3.1. with 5000 to 25000 m3 būvtilpum of 2.5 2 3.2. with more than 25000 m3 būvtilpum 2 5 table 2 construction ugunsnoturīb level Ugunsslodz (MJ/m2) and one Jet blasted a minimum consumption (l/s) via usage will construct that is būvtilpum: 5000-25000 25000 m3 m3 more than 1200 2 x 2.5 x 2 U1 > 5 300-1200 2 x 2.5 x 2.5 x 2 x 5 1200 2 2 5 300-1200 2 x 2.5 x 2.5 x 2 x 5 1200 2 2 5 300-1200 2 2.5 x 2 x 5