1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12056-1:2000 The Eu
2、ropean Standard EN 12056-1:2000 has the status of a British Standard ICS 01.040.91; 91.140.80 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Gravity drainage systems inside buildings Part 1: General and performance requirementsThis British Standard, having been prepared under
3、 the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 September 2000 BSI 09-2000 ISBN 0 580 36444 5 BS EN 12056-1:2000 Amendments issued since publication Amd. No. Date Comments National for
4、eword 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 B/505, Wastewater engineering, to Subcommittee B/505/21, Roof drainage and sanitary pipework, which has the responsibility to: aid enq
5、uirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on
6、 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 the BSI Standards Catalogue under the section entitled “International Standards Correspondence In
7、dex”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself
8、confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEAN STANDARD NORME EUROPENNE
9、EUROPISCHE NORM EN 12056-1 June 2000 ICS 01.040.91; 91.140.80 English version Gravity drainage systems inside buildings - Part 1: General and performance requirements Rseaux dvacuation gravitaire lintrieur des btiments - Partie 1: Prescriptions gnrales et de performance Schwerkraftentwsserungsanlage
10、n innerhalb von Gebuden - Teil 1: Allgemeine und Ausfhrungsanforderungen This European Standard was approved by CEN on 27 October 1999. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national
11、standard without any alteration. Up-to-date lists and bibliographical references concerning such national 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 oth
12、er language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, G
13、reece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CEN All rights
14、of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12056-1:2000 EPage 2 EN 12056-1:2000 BSI 09-2000 Foreword 4 1 Scope 5 2 Normative references 5 3 Definitions 6 3.1 General 6 3.1.1 Waste water 6 3.1.2 Domestic waste water 6 3.1.3 Trade effluent 6 3
15、.1.4 Grey water 6 3.1.5 Black water 6 3.1.6 Rainwater 6 3.1.7 Flood level 6 3.1.8 Drainage system 6 3.1.9 Combined system 6 3.1.10 Separate system 6 3.2 Pipes and fittings 6 3.2.1 Sanitary pipework 6 3.2.2 Nominal diameter (DN) 7 3.2.3 Internal diameter (d i )7 3.2.4 External diameter (d a )7 3.2.5
16、Minimum internal diameter (d i min )7 3.2.6 Branch discharge pipe 7 3.2.7 Square entry 7 3.2.8 Swept entry 7 3.2.9 Connection bend 7 3.2.10 Discharge stack 7 3.2.11 Stack offset 7 3.2.12 Drain 7 3.2.13 Filling degree 7 3.3 Ventilating pipework 7 3.3.1 Ventilating pipe 7 3.3.2 Branch ventilating pipe
17、 7 3.3.3 Stack vent 7 3.3.4 Ventilating stack 7 3.3.5 Air admittance valve 7 3.4 Appliances 8 3.4.1 Domestic sanitary appliances 8 3.4.2 Non-domestic sanitary appliances 8 3.4.3 Floor gully 8 3.4.4 Trap 8 3.4.5 Depth of water seal (H)8 3.5 Calculation 8 3.5.1 Discharge unit (DU) 8 3.5.2 Frequency fa
18、ctor (K) 8 3.5.3 Waste water flow rate (Q ww )8 3.5.4 Continuous flow rate (Q c )8 3.5.5 Pumped water flow rate (Q p )9 3.5.6 Total flow rate (Q tot )9Page 3 EN 12056-1:2000 BSI 09-2000 3.5.7 Hydraulic capacity (Q max )9 3.5.8 Air flow rate (Q a )9 4 General requirements 9 4.1 Energy and water consu
19、mption 9 4.2 Gravity drainage 9 4.3 Combined and separate systems 9 4.4 National and local conditions 9 4.5 Condensates 9 4.6 Quality and quantity requirements of effluents 9 5 Performance requirements 10 5.1 General 10 5.2 Function 10 5.3 Hygiene 10 5.4 Safety 10 5.4.1 Prevention of spread of fire
20、and smoke 10 5.4.2 Water and gas tightness 10 5.4.3 Location of pipework 10 5.5 Flooding 11 5.5.1 Flooding from the external drainage system 11 5.5.2 Flooding within the building drainage system 11 5.5.3 Flooding prevention 11 5.6 Performance considerations 11 5.6.1 Capacity of the system 11 5.6.2 N
21、oise 11 5.6.3 Ventilation of the drainage system 11 5.6.4 Durability 11 5.6.5 Condensation 11 5.6.6 Accessibility for inspection, testing and maintenance 11 5.7 Mechanical resistance and stability 12 5.7.1 Chemical and physical resistance 12 5.7.2 Stability during construction 12 5.7.3 Stability dur
22、ing operation 12 5.8 Frost protection 12 6 Testing 12 Annex A (informative) 13 A.1 National and local regulations and practice 13Page 4 EN 12056-1:2000 BSI 09-2000 Foreword This European Standard has been prepared by Technical Committee CEN/TC 165, Waste water engineering, the Secretariat of which i
23、s 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 first in a series r
24、elating 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 drainage - Layout and
25、calculation; Part 4: Waste water lifting plants - Layout and calculation; Part 5: Installation and testing, instructions for operation, maintenance and use. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this
26、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.Page 5 EN 12056-1:2000 BSI 09-2000 1 Scope This European Standard applies to waste wat
27、er 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. Differences in plumbing within Europe have led to a variety of systems
28、 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 referring to the technical documents listed in annex A. This first part
29、 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 this standard are given as examples and are not intended to exclude any ot
30、her system configuration. 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 undated reference, provisions from other publications. These normative references ar
31、e 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 when incorporated in it by amendment or revision. For undated references the latest e
32、dition of the publication referred to applies.Page 6 EN 12056-1:2000 BSI 09-2000 EN 12056-2: Gravity drainage systems inside buildings - Part 2: Sanitary pipework - Layout and calculation. EN 12056-3: Gravity drainage systems inside buildings - Part 3: Roof drainage - Layout and calculation. EN 1205
33、6-4: Gravity drainage systems inside buildings - Part 4: Waste water lifting plants - Layout and calculation. EN 12056-5 Gravity drainage systems inside buildings - Part 5: Installation and testing, instructions for operation, maintenance and use. 3 Definitions For the purposes of this European Stan
34、dard, the following definitions apply. 3.1 General 3.1.1 waste water water which is contaminated 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 3.1.2 domestic waste wate
35、r water which is contaminated by use and normally discharged from WC, showers, baths, bidets, wash basins, sinks and floor gullies 3.1.3 trade effluent water after industrial use and processes contaminated/polluted water including cooling water 3.1.4 grey water waste water not containing faecal matt
36、er or urine 3.1.5 black water waste water containing faecal matter or urine 3.1.6 rainwater water resulting from natural precipitation that has not been deliberately contaminated 3.1.7 flood level maximum level to which waste water can rise within a drainage system 3.1.8 drainage system a system com
37、posed of drainage equipment, and other components collecting waste water and discharging by means of gravity. Effluent lifting plant may be part of a gravity drainage system 3.1.9 combined system a drainage system for both rain and waste water in a single pipe 3.1.10 separate system a drainage syste
38、m for draining rain and waste water separately by dedicated pipework 3.2 Pipes and fittings 3.2.1 sanitary pipework arrangement of discharge pipework, with or without ventilating pipes, connected to a drainage system Note: For the purposes of this standard, “pipework” include pipes and fittings.Page
39、 7 EN 12056-1:2000 BSI 09-2000 3.2.2 nominal diameter (DN) numerical designation of size which is a convenient round number approximately equal to the diameter in mm 3.2.3 internal diameter (d i ) mean internal diameter of the pipe barrel at any cross-section 3.2.4 external diameter (d a ) mean exte
40、rnal diameter of the pipe barrel at any cross-section 3.2.5 minimum internal diameter (d i min ) smallest internal diameter allowed with maximum tolerance 3.2.6 branch discharge pipe pipe connecting sanitary appliances to a discharge stack or drain 3.2.7 square entry equal branch junction that is mo
41、re than 45, or has a centre line radius less than the internal pipe diameter 3.2.8 swept entry equal branch junction that is at 45 or less, or has a centre line radius not less than the internal pipe diameter 3.2.9 connection bend first fitting in direction of flow after trap outlet 3.2.10 discharge
42、 stack main (generally vertical) pipe, conveying discharges from sanitary appliances 3.2.11 stack offset non-vertical part of a discharge stack 3.2.12 drain near horizontal pipe suspended within a building or buried in the ground to which stacks or ground floor appliances are connected 3.2.13 fillin
43、g degree proportion of water depth (h) to the inside diameter (d i ) 3.3 Ventilating pipework 3.3.1 ventilating pipe pipe provided to limit the pressure fluctuations within the discharge pipe system 3.3.2 branch ventilating pipe ventilating pipe connected to a branch discharge pipe 3.3.3 stack vent
44、extension of a vertical discharge pipe above the highest branch discharge pipe connection that terminates in an end, open to the atmosphere 3.3.4 ventilating stack main vertical ventilating pipe, connected to a discharge stack, to limit pressure fluctuations within the discharge stack 3.3.5 air admi
45、ttance valve valve that allows air to enter the system but not to escape in order to limit pressure fluctuations within the sanitary pipeworkPage 8 EN 12056-1:2000 BSI 09-2000 3.4 Appliances 3.4.1 domestic sanitary appliances fixed appliances supplied with water and used cleaning or washing. For exa
46、mple: baths, showers, wash basins, bidets, WCs, urinals, sinks, dishwashers, washing machines 3.4.2 non-domestic sanitary appliances special sanitary appliances used in commercial kitchens, laundries, laboratories, hospitals, hotels, swimming-pools, etc. 3.4.3 floor gully discharge fitting intended
47、to receive water from floors either through apertures in a grating or from pipes connected to the body of the gully. A gully may include a trap 3.45.4 trap device that prevents the passage of foul air by means of water seal 3.4.5 depth of water seal (H) the depth of water which would have to be remo
48、ved from a fully charged trap before gases and odours 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) the average discharge rate of a sanitary appliance expressed in litres per second (l/s) 3.5.2 freque
49、ncy factor (K) variable to take into account the frequency of use of sanitary appliances (dimensionless) 3.5.3 waste water flow rate (Q ww ) total design flow rate from sanitary appliances in a drainage system or in a part of a drainage system in litres per second (l/s) 3.5.4 continuous flow rate (Q c ) flow rate of all continuous flows, e.g. cooling water, etc. in litres per second (l/s)Page 9 EN 12056-1:2000 BSI 09-2000 3.5.5 pumped water flow rate (Q p ) discharge rate of waste water pumps in litres per second (l/s) 3.5.6 total flow rate
