1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12056-5:2000 The Eu
2、ropean Standard EN 12056-5:2000 has the status of a British Standard ICS 91.140.80 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Gravity drainage systems inside buildings Part 5: Installation and testing, instructions for operation, maintenance and useThis British Standard,
3、having been prepared under 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 36443 7 BS EN 12056-5:2000 Amendments issued since publication Amd. No.
4、Date Comments National foreword This British Standard is the official English language version of EN 12056-5:2000. 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
5、responsibility to: aid enquirers 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 or
6、ganizations 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 the BSI Standards Catalogue under the section entitled “International S
7、tandards Correspondence Index”, 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 St
8、andard does not of itself 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 19 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEAN
9、 STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12056-5 June 2000 ICS 91.140.80 English version Gravity drainage systems inside buildings - Part 5: Installation and testing, instructions for operation, maintenance and use Rseaux dvacuation gravitaire lintrieur des btiments - Partie 5: Mise en uvre, ess
10、ai, instructions de service, dexploitation et dentretien Schwerkraftentwsserungsanlagen innerhalb von Gebuden - Teil 5: Installation und Prfung, Anleitung fr Betrieb, Wartung und Gebrauch This European Standard was approved by CEN on 27 October 1999. CEN members are bound to comply with the CEN/CENE
11、LEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national 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 C
12、EN member. This European Standard exists in three official versions (English, French, German). A version in any other 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
13、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 and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALI
14、SATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12056-5:2000 EPage 2 EN 12056-5:2000 BSI 09-2000 Foreword 5 1 Scope 6 2 Normative R
15、eferences 7 3 Definitions 8 3.1 General 8 3.1.1 Waste water 8 3.1.2 Domestic waste water 8 3.1.3 Trade effluent 8 3.1.4 Grey water 8 3.1.5 Black water 8 3.1.6 Rainwater 8 3.1.7 Flood level 8 3.1.8 Drainage system 8 3.1.9 Combined system 8 3.1.10Separate system 8 3.2 Pipes and fittings 8 3.2.1 Sanita
16、ry pipework 8 3.2.2 Nominal diameter (DN) 8 3.2.3 Internal diameter (d i )8 3.2.4 External diameter(d a )9 3.2.5 Minimum internal diameter (d i min )9 3.2.6 Branch discharge pipe 9 3.2.7 Square entry 9 3.2.8 Swept entry 9 3.2.9 Connection bend 9 3.2.10Discharge stack 9 3.2.11Stack offset 9 3.2.12Dra
17、in 9 3.2.13Filling degree 9 3.3 Ventilating pipework and fittings 9 3.3.1 Ventilating pipe 9 3.3.2 Branch ventilating pipe 9 3.3.3 Stack vent 9 3.3.4 Ventilating stack 9 3.3.5 Air admittance valve 9 3.4 Appliances 9 3.4.1 Domestic sanitary appliances 9 3.4.2 Non-domestic sanitary appliances 10 3.4.3
18、 Floor gully 10 3.4.4 Trap 10 3.4.5 Depth of water seal (H)1 0Page 3 EN 12056-5:2000 BSI 09-2000 3.5 Calculation 11 3.5.1 Discharge unit (DU) 11 3.5.2 Frequency factor (K) 11 3.5.3 Waste water flow rate (Q ww )1 1 3.5.4 Continuous flow rate (Q c )1 1 3.5.5 Pumped water flow rate(Q p )1 1 3.5.6 Total
19、 flow rate (Q tot )1 1 3.5.7 Hydraulic capacity(Q max )1 1 3.5.8 Air flow rate (Q a )1 1 4 Storage and transport 12 5 General requirements 12 5.1 General 12 5.2 Waste water discharge pipework 12 5.3 Gradient 12 5.4 Sanitary appliance 12 5.5 Safety precautions 12 5.6 Stability of sanitary pipework 12
20、 6 Installation of waste water pipes 13 6.1 Fixing 13 6.2 Jointing 13 6.3 Fixing and supporting 13 6.4 Changes of directions and branch pipe connections 13 6.5 Connection of pipes of different materials and sizes 13 6.6 Thermal movement 13 6.7 Installation in concrete or other fills 13 7 Installatio
21、n of sanitary appliances 13 7.1 Fixing 13 7.2 Connection 13 8 Fire protection 14Page 4 EN 12056-5:2000 BSI 09-2000 9 Sound insulation 14 10 Instructions for operation, maintenance and use 14 11 Testing 14 Annex A (informative) 15 A.1 National and local regulations and practice 15Page 5 EN 12056-5:20
22、00 BSI 09-2000 Foreword This European Standard has been prepared by Technical Committee CEN/TC 165 “Waste water engineering“, the secretariat 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
23、, at the latest by December 2000, and conflicting national standards shall be withdrawn at the latest by June 2001. This part is the fifth in a series relating to the fundamental requirements of gravity drainage systems inside buildings. There will be five parts, as follows: Gravity drainage systems
24、 inside buildings: Part 1: General and performance requirements Part 2: Sanitary pipework - Layout and calculation Part 3: Roof drainage - Layout and calculation Part 4: Waste water lifting plants - Layout and calculation Part 5: Installation and testing, instructions for operation, maintenance and
25、use According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
26、 Portugal, Spain, Sweden, Switzerland and the United Kingdom.Page 6 EN 12056-5:2000 BSI 09-2000 1 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 buildin
27、gs. 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
28、by referring to the technical documents listed in Annex A. This fifth part of the standard sets out the principles, which should be followed when installing and maintaining waste water and rainwater gravity drainage systems. It deals with fixing, support, containment of thermal movement, protection
29、and accessibility of the system. All drawings in this standard are given as examples and are not intended to exclude any other system configuration.Page 7 EN 12056-5:2000 BSI 09-2000 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publi
30、cations. 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 when incorporated in it by amendment or revisio
31、n. For undated references the latest edition of the publication referred to applies. EN 12056-1: Gravity drainage systems inside buildings Part 1: General and performance requirements EN 12056-2: Gravity drainage systems inside buildings Part 2: Sanitary pipework - Layout and calculation EN 12056-3:
32、 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 calculationPage 8 EN 12056-5:2000 BSI 09-2000 3 Definitions For the purposes of this European Standard, the
33、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 water water wh
34、ich is contaminated by use and normally discharged from WC, shower, bath, bidet, wash basin, sink, floor gully 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 matter or urine 3.1.5
35、black water waste water containing faecal matter 3.1.6 rainwater water resulting from natural precipitation that has not been deliberately contaminated 3.1.7 flood level the maximum level to which waste water can rise within a drainage system 3.1.8 drainage system a system composed of drainage equip
36、ment, 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 system for draining rain an
37、d 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. 3.2.2 nominal diameter (DN
38、) 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 sectionPage 9 EN 12056-5:2000 BSI 09-2000 3.2.4 external diameter(d a ) mean external diameter of the pip
39、e 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 more than 45, or has a cen
40、tre 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 stack main (generally v
41、ertical) 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 filling degree proportion of w
42、ater depth (h) to the inside diameter (d i ) 3.3 Ventilating pipework and fittings 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 extension o
43、f 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 admittance valv
44、e valve that allows air to enter the system but not to escape in order to limit pressure fluctuations within the sanitary pipework 3.4 Appliances 3.4.1 domestic sanitary appliances fixed appliances supplied with water and used for cleaning or washing. For example: bath, shower, wash basin, bidet, WC
45、, urinal, sink, dishwasher, washing machinePage 10 EN 12056-5:2000 BSI 09-2000 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 to receive water
46、 from floors either through apertures in a grating or from pipes connected to the body of the gully. A gully may include a trap. 3.4.4 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 removed from a fully
47、 charged trap before gases and odours at atmospheric pressure could pass through the trap shown as H in Figure 2 Figure 1 Water depth in trapPage 11 EN 12056-5:2000 BSI 09-2000 3.5 Calculation 3.5.1 discharge unit (DU) the average discharge rate of a sanitary appliance expressed in litres per second
48、 (l/s) 3.5.2 frequency factor (K) variable to take account of 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 contin
49、uous flow rate (Q c ) flow rate of all continuous flows e.g. cooling water etc. in litres per second (l/s) 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 (Q tot ) the total flow rate is the sum of the waste water flow rate (Q ww ) and continuous flow rate (Q c ) and pumped water flow rate (Q p ), in litres per second (l/s) 3.5.7 hydraulic capacity(Q max ) maximum flow rate of water permitted in a branch, stack or drain in litres per second (l/s) 3.5.8 air flow rate
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