1、STD-BSI BS EN 1205b-1-ENGL 2000 U 1624bb9 0673682 795 I BRITISH STANDARD Gravity drainage systems inside buildings - Part 1: General and performance requirements The European Standard EN 120W1:2000 has the status of a British Standard ICs 01.040.91; 91.140.80 BS EN 12056-1:2000 NO COPYING WITHOUT BS
2、I PERMISSION EXCEPT AS PEEMWIED BY COPRIGHT LAW STD.BSI BS EN L205b-L-ENGL 2000 m L624bb 0873883 b21 m BS EN 12056-1:2000 This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Com
3、mittee and comes into effect on 15 September 2000 0 BSI 09-2000 ISBN O 580 36444 5 National foreword This British Standard is the official English language version of EN 12056-1:2000. The UK participation in its preparation was entrusted by Technical Committee W505, Wastewater engineering, to Subcom
4、mittee B/505L21, Roof drainage and sanitary pipework, which has the responsibility to: - aid enquirem to understand the tea - present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related intemational
5、 and European developments and promulgate them in the UK. A iist of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in t
6、he BSI Standards Catalogue under the section entitled “Intedonal Standards Correspondence Index“, or by using the “Find“ facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include ali the necesscuy provisions of a contract Users of British Standards are respon
7、sible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN titie page, pages 2 to 17 and a back cover. The BSI copyright notice displayed in t
8、his document indicates when the document was last issued. Amendments issued since publication I Amd. No. Date STD.BS1 BS EN 1205b-1-ENGL 2000 I L62Libb 0873884 5bB EUROPEAN STANDARD EN 12056-1 NORME EUROPENNE EUROPISCHE NORM June 2000 ICs 01.040.91; 91.140.80 English version Gravity drainage systems
9、 inside buildings - Part 1 : General and performance requirements Rseaux dvacuation gravitaire lintrieur des btiments - Partie 1 : Prescriptions gnrales et de performance Schwerkraftentwsserungsanlagen innerhalb von Gebuden - Teil 1 : Allgemeine und Ausfhrungsanforderungen This European Standard was
10、 approved by CEN on 27 October 1999. CEN members are bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-todate lists and bibliographical references concerning sich nat
11、ional standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by traislation under the responsibility of a CEN member into its own language and n
12、otified to the Central Secretariat has the same status as he official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland
13、 and United Kingdom. EUROPEAN COMMiTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 E-1050 Brussels 8 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. E
14、N 12056-1:ZOOO E STD-BSI BS EN L205b-L-ENGL 2000 Lb24667 0873885 4T4 Page 2 EN 12056-1 :ZOO0 Foreword 1 Scope 2 Normative references 3 Definitions 3.1 3.1.1 3.1.2 3.1.3 3.1.4 3.1.5 3.1.6 3.1.7 3.1.8 3.1.9 3.1.10 3.2 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7 3.2.8 3.2.9 3.2.10 3.2.1 1 3.2.12 3.2.13 3
15、.3 3.3.1 3.3.2 3.3.3 3.3.4 3.3.5 3.4 3.4.1 3.4.2 3.4.3 3.4.4 3.4.5 3.5 3.5.1 3.5.2 3.5.3 3.5.4 3.5.5 3.5.6 General Waste water Domestic waste water Trade effluent Grey water Black water Ra i nwate r Flood level Drainage system Combined system Separate system Pipes and fittings Sanitary pipework Nomi
16、nal diameter (DN) Internal diameter (di) External diameter (da) Minimum internal diameter (di ,in) Branch discharge pipe Square entry Swept entry Connection bend Discharge stack Stack offset Drain Filling degree Ventilating pipework Ventilating pipe Branch ventilating pipe Stack vent Ventilating sta
17、ck Air admittance valve Appliances Domestic sanitary appliances Non-domestic sanitary appliances Floor gully Trap Depth of water seal (H) Calculation Discharge unit (DU) Frequency factor (K) Waste water flow rate (Qw) Continuous flow rate (QJ Pumped water flow rate (Qp) Total flow rate (Qtot) 4 5 5
18、6 6 6 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 7 (9 BSI 09-2000 STD.BSI BS EN i,i!OSb-L-ENGL 2000 Lb24669 0873886 330 R Page 3 EN 12056-1 12000 3.5.7 Hydraulic capacity (Qmd 3.5.8 Air flow rate (QB) 9 9 4 General requirements 9 4.1 Energy and water consumption 4.2 Gravity drainage 9 9 4.3 Combine
19、d and separate systems 9 4.4 National and local conditions 9 4.5 Condensates 4.6 Quality and quantity requirements of effluents 9 9 5 Performance requirements 10 5.1 5.2 5.3 5.4 5.4.1 5.4.2 5.4.3 5.5 5.5. I 5.5.2 5.5.3 5.6 5.6.1 5.6.2 5.6.3 5.6.4 5.6.5 5.6.6 5.7 5.7.1 5.7.2 5.7.3 5.8 General Functio
20、n Hygiene Safety Prevention of spread of fire and smoke Water and gas tightness Location of pipework Flooding Flooding from the external drainage system Flooding within the building drainage system Flooding prevention Performance considerations Capacity of the system Noise Ventilation of the drainag
21、e system Durability Condensation Accessibility for inspection, testing and maintenance Mechanical resistance and stability Chemical and physical resistance Stability during construction Stability during operation Frost protection 6 Testing Annex A (informative) A.l National and local regulations and
22、 practice io 10 10 10 10 10 10 11 11 11 11 11 11 11 11 11 11 Il 12 12 12 12 12 12 13 13 8 BSI 09-2000 STD-BSI BS EN L205b-L-ENGL 2000 = Lb24667 0873667 277 H Page 4 EN 12056-1 12000 Foreword This European Standard has been prepared by Technical Committee CENTTC 165, Waste water engineering, the Secr
23、etariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2000, and conflicting national standards shall be withdrawn at the latest by June 2001. This part is the f
24、irst in a series relating to the functional requirements of gravity drainage systems inside buildings. There will be five parts, as follows: Gravity drainage systems inside buildings - Part 1 : General and performance requirements; Part 2: Sanitary pipework - Layout and calculation; Part 3: Roof dra
25、inage - Layout and calculation; Part 4: Waste water lifting plants - Layout and calculation; Part 5: Installation and testing, instructions for operation, maintenance and use. According to the CENXENELEC Internal Regulations, the national standards organizations of the following countries are bound
26、to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Q BSI 09-2000 STD.BS1 BS EN 12056-1-ENGL 2000 Lb24bb 0873888 103 Pa
27、ge 5 EN 12056-1 :2000 Scope This European Standard applies to waste water drainage systems which operate under gravity. It is applicable for drainage systems inside dwellings, commercial, institutional and industrial buildings. The field of application of this European Standard is shown in Figure 1.
28、 Differences in plumbing within Europe have led to a variety of systems being developed. Some of the major systems in use are described but this standard has not attempted to detail the intricacies of each system. Detailed information additional to that contained in this standard may be obtained by
29、referring to the technical documents listed in annex A. This first part of the standard establishes the general and performance requirements for waste water gravity drainage systems. It makes limited provision for pipework conveying trade effluent and for fluids removed by pumps. All drawings in thi
30、s standard are given as examples and are not intended to exclude any other system configuration. _._I_ c 2 1 Gravity drainage systems inside buildings 2 Gravity drainage systems outside buildings Figure 1 - Field of application 2 Normative references This European Standard incorporates by dated or u
31、ndated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only wh
32、en incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. , Q BSI 09-2000 STD.BSI BS EN L205b-L-ENGL 2000 II Lb24667 0873687 04T Page 6 EN 12056-1 12000 EN 12056-2: Gravity drainage systems inside buildings - Part 2: Sanitary pi
33、pework - Layout and calculation. EN 72056-3: Gravity drainage systems inside buildings - Part 3: Roof drainage - Layout and calculation. EN 12056-4: Gravity drainage systems inside buildings - Part 4: Waste water lifting plants - Layout and calculation. EN 12056-5 Gravity drainage systems inside bui
34、ldings - Part 5: Installation and testing, instructions for operation, maintenance and use. 3 3.1 3.1.1 3.1.2 3.1.3 3.1 -4 3.1.5 3.1.6 3.1.7 3.1.8 3.1.9 3.1 .IO 3.2 3.2.1 Definitions For the purposes of this European Standard, the following definitions apply. General waste water water which is conta
35、minated by use and all water discharging into the drainage system, e.g. domestic and trade effluent, condensate water and also rainwater when discharged in a waste water drainage system domestic waste water water which is contaminated by use and normally discharged from WC, showers, baths, bidets, w
36、ash basins, sinks and floor gullies trade effluent water after industrial use and processes contaminated/polluted water including cooling water grey water waste water not containing faecal matter or urine black water waste water containing faecal matter or urine rainwater water resulting from natura
37、l precipitation that has not been deliberately contaminated flood level maximum level to which waste water can rise within a drainage system drainage system a system composed of drainage equipment, and other components collecting waste water and discharging by means of gravity. Effluent lifting plan
38、t may be part of a gravity drainage system combined system a drainage system for both rain and waste water in a single pipe separate system a drainage system for draining rain and waste water separately by dedicated pipework Pipes and fittings sanitary pipework arrangement of discharge pipework, wit
39、h or without ventilating pipes, connected to a drainage system Note: For the purposes of this standard, “pipework“ include pipes and fittings. O BSI 09-2000 STD-BSI BS EN 12056-1-ENGL 2000 3b24bb9 0873890 8bL Page 7 EN 12056-1 :2000 3.2.2 nominal diameter (DN) numerical designation of size which is
40、a convenient round number approximately equal to the diameter in mm mean internal diameter of the pipe barrel at any cross-section mean external diameter of the pipe barrel at any cross-section smallest internal diameter allowed with maximum tolerance pipe connecting sanitary appliances to a dischar
41、ge stack or drain equal branch junction that is more than 45“, or has a centre line radius less than the internal pipe diameter equal branch junction that is at 45“ or less, or has a centre line radius not less than the internal pipe diameter first fitting in direction of flow after trap outlet main
42、 (generally vertical) pipe, conveying discharges from sanitary appliances non-vertical part of a discharge stack near horizontal pipe suspended within a building or buried in the ground to which stacks or ground floor appliances are connected proportion of water depth (h) to the inside diameter (di)
43、 3.2.3 internal diameter (di) 3.2.4 external diameter (da) 3.2.5 minimum internal diameter (di 3.2.6 branch discharge pipe 3.2.7 square entry 3.2.8 swept entry 3.2.9 connection bend 3.2.10 discharge stack 3.2.1 1 stack offset 3.2.12 drain 3.2.13 filling degree 3.3 Ventilating pipework 3.3.1 ventilat
44、ing pipe 3.3.2 branch ventilating pipe 3.3.3 stack vent pipe provided to limit the pressure fluctuations within the discharge pipe system ventilating pipe connected to a branch discharge pipe extension of a vertical discharge pipe above the highest branch discharge pipe connection that terminates in
45、 an end, open to the atmosphere main vertical ventilating pipe, connected to a discharge stack, to limit pressure fluctuations within the discharge stack valve that allows air to enter the system but not to escape in order to limit pressure fluctuations within the sanitary pipework 3.3.4 ventilating
46、 stack 3.3.5 air admittance valve O BSI 09-2000 STD-BSI BS EN 12056-1-ENGL 2000 W Lb24669 OB73871 7TB Page 8 EN 12056-1 :2000 3.4 3.4.1 3.4.2 3.4.3 3.45.4 3.4.5 Appliances domestic sanitary appliances fixed appliances supplied with water and used cleaning or washing. For example: baths, showers, was
47、h basins, bidets, WCs, urinals, sinks, dishwashers, washing machines non-domestic sanitary appliances special sanitary appliances used in commercial kitchens, laundries, laboratories, hospitals, hotels, swimming-pools, etc. floor gully discharge fitting intended to receive water from floors either t
48、hrough apertures in a grating or from pipes connected to the body of the gully. A gully may include a trap trap device that prevents the passage of foul air by means of water seal depth of water seal (H) the depth of water which would have to be removed from a fully charged trap before gases and odo
49、urs at atmospheric pressure could pass through the trap shown as H in Figure 2 Figure 2 -Water depth in trap 3.5 Calculation 3.5.1 discharge unit (DU) 3.5.2 frequency factor (K) 3.5.3 the average discharge rate of a sanitary appliance expressed in litres per second (Ils) variable to take into account the frequency of use of sanitary appliances (dimensionless) waste water flow rate (QW) total design flow rate from sanitary appliances in a drainage system or in a part of a drainage system in litres per second (Vs) flow rate of all continuous flows, e
