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1、BRITISH STANDARD BS EN 12050-1:2001 Wastewater lifting plants for buildings and sites Principles of construction and testing Part 1: Lifting plants for wastewater containing faecal matter The European Standard EN 12050-1:2001 has the status of a British Standard ICS 13.060.30; 91.140.80 NO COPYING W
2、ITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 12050-1:2001 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 Committee and comes into effect on 15 March 200
3、1 BSI 03-2001 ISBN 0 580 36910 2 National foreword This British Standard is the official English language version of EN 12050-1:2001. The UK participation in its preparation was entrusted to Technical Committee B/505, Wastewater engineering, which has the responsibility to: A list of organizations r
4、epresented on this committee 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 Corresp
5、ondence 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 Standard does not
6、of itself confer immunity from legal obligations. 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 promulga
7、te them in the UK. 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 date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComment
8、s EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12050-1 January 2001 ICS 91.140.80 English version Wastewater lifting plants for buildings and sites Principles of construction and testing Part 1: Lifting plants for wastewater containing faecal matter Stations de relevage deffluents pour les b
9、timents et terrains Principes de construction et dessai Partie 1: Stations de relevage pour effluents contenant des matires fcales Abwasserhebeanlagen fr die Gebude- und Grundstcksentwsserung Bau- und Prfgrundstze Teil 1: Fkalienhebeanlagen This European Standard was approved by CEN on 4 January 200
10、1. 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 standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained o
11、n application to the Management Centre or to any CEN 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 Management Centre ha
12、s the same status as the 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 and United Kingdom. EUROPEAN COMMIT
13、TEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12050-1:2001 E Page 2 EN 12050-1:2001
14、BSI 03-2001 Contents Page Foreword 3 1Scope. 3 2Normative references. 3 3Terms and definitions 4 4Requirements 4 4.1Control equipment 4 4.2Collection tank for wastewater containing faecal matter. 4 4.3 Manufacturers statement . 4 5Construction principles . 5 5.1Pumping of solids . 5 5.2Pipe connecti
15、ons 5 5.3Minimum dimensions of ventilating pipework 5 5.4Minimum flow velocity. 5 5.5Minimum passage of the plant 6 5.6Minimum size of discharge pipework for non-macerating faecal lifting plants . 6 5.7Minimum size of discharge pipework for macerating faecal lifting plants 6 5.8Electrical equipment
16、. 6 5.9Fixing devices. 6 6Materials 7 7Testing documentation and samples to be tested 7 8Testing. 7 8.1General. 7 8.2Test conditions 7 8.3Testing for leaks . 7 8.4Lifting effectiveness of the faecal lifting plant . 7 8.5Test procedure . 8 8.6Macerating faecal lifting plants 8 9Conformity evaluation
17、9 9.1General requirements. 9 9.2Initial testing of the products (type testing). 9 9.3Factory production control (FPC) carried out by the manufacturer (internal conformity evaluation) 9 9.4Non-conforming products . 10 10Marking 10 11Installation, operation and maintenance 10 Annex A (normative) Addit
18、ional requirements 11 Annex B (informative) Recommended materials 12 Annex C (informative) Conformity evaluation by an independent third party (third party evaluation). 13 Annex Z (informative) Links with the EU Construction Products Directive (89/106) 14 Bibliography. 17 Page 3 EN 12050-1:2001 BSI
19、03-2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 165, Wastewater 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, at the
20、latest by July 2001, and conflicting national standards shall be withdrawn at the latest by October 2002. This is the first part of a total of four parts of the standard series EN 12050 with the following titles: Part 1: Lifting plants for wastewater containing faecal matter; Part 2: Lifting plants
21、for faecal-free wastewater; Part 3: Lifting plants for wastewater containing faecal matter for limited applications; Part 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matter. This European Standard has been prepared under a mandate given to CEN by the European Com
22、mission and the European Free Trade Association and supports essential requirements of EU directives. For relationships with EU Directives, see informative annex Z, which is an integral part of this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of
23、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, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 1Scope This part of this European
24、 Standard applies to lifting plants for wastewater containing faecal matter (referred to as “faecal lifting plants” in this standard), which may also be used to deal with wastewater that does not contain faecal matter, for drainage of locations in buildings and sites below flood level for buildings
25、and sites to prevent any backflow of wastewater into the building. This part of the European Standard contains general requirements, basic construction and testing principles, together with information on materials and conformity evaluation. Construction and testing requirements for non-return valve
26、s used in faecal lifting plants are given in EN 12050-4. NOTE For pumping installations for drain and sewer systems see also EN 752-6. 2Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at t
27、he 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 edition of th
28、e publication referred to applies (including amendments). EN 124, Gully tops and manhole tops for vehicular and pedestrian areas Design requirements, type testing, marking, quality control. EN 752-6, Drain and sewer systems outside buildings Part 6: Pumping installations. EN 1085:1997, Wastewater tr
29、eatment Vocabulary. EN 12050-4, Wastewater lifting plants for buildings and sites Principles of construction and testing Part 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matter. EN 12056-1, Gravity drainage systems inside buildings Part 1: General and performance
30、 requirements. EN 12056-4, Gravity drainage systems inside buildings Part 4: Wastewater lifting plants, layout and calculation. EN 12566-1, Small wastewater treatment systems for up to 50 PT Part 1: Prefabricated septic tanks. EN 12639:2000, Liquid pumps and pump units Noise test code Grade 2 and gr
31、ade 3 of accuracy. Page 4 EN 12050-1:2001 BSI 03-2001 EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989). ISO 9906, Rotodynamic pumps Hydraulic performance acceptance tests Grades 1 and 2. 3Terms and definitions For the purposes of this standard, the definitions given
32、in EN 1085:1997 and the following apply. 3.1 faecal lifting plant device for the collection and automatic lifting of wastewater, which may or may not contain faecal matter, to a height above flood level NOTE A non-return valve according to EN 12050-4 is a component of the plant. 3.2 collection tank
33、for wastewater containing faecal matter unpressurized part of a faecal lifting plant in which the incoming wastewater is stored prior to lifting 3.3 useful volume volume in the collection tank between switch-on level and switch-off level 3.4 pumping device for effluent containing faecal matter compo
34、nent of a faecal lifting plant which pumps the wastewater out of the collection tank to a height above flood level 3.5 warning device device which gives a signal if a malfunction occurs 3.6 initial testing (type testing) testing to demonstrate that a plant conforms to all requirements of this standa
35、rd 4Requirements 4.1Control equipment Faecal lifting plants shall be fitted with control equipment for automatic operation of the plant and with a warning device. Manual operation shall also be possible. 4.2Collection tank for wastewater containing faecal matter Other than inlet, outlet and venting
36、openings, collection tanks shall be closed, watertight and odour tight. The inside of the collection tank of a faecal lifting plant may be regarded as a zone containing potentially explosive gasses. In this respect the tank and other mechanical fittings are not subject to any particular requirements
37、, provided that measures are taken to ensure that explosions cannot occur within the tank. Collection tanks outside the building shall be covered (see EN 124) and watertight, their structural design shall be in accordance with EN 752-6. 4.3 Manufacturers statement The manufacturer shall state the hy
38、draulic performance characteristics (head and flow) according to grade 2 of ISO 9906 together with the maximum power consumption and maximum current consumption. Page 5 EN 12050-1:2001 BSI 03-2001 5Construction principles 5.1Pumping of solids Faecal lifting plants shall be capable of pumping wastewa
39、ter as defined in EN 12056-1 including all the solid matter usually contained in domestic wastewater. They shall be designed in such a way that solid matter does not accumulate. 5.2Pipe connections The dimensions of inlet, discharge and ventilating connections shall permit the use of standard pipe s
40、izes. Connections shall be flexible and shall withstand the maximum pump pressure without leaking. 5.3Minimum dimensions of ventilating pipework The connection of the ventilating pipework shall have a nominal diameter of at least DN 50. 5.4Minimum flow velocity The flow velocity in the discharge pip
41、ework shall be at least 0,7 m/s at the duty point. The duty point shall be calculated according to EN 12056-4. The minimum flow rate shall be calculated in accordance with equation (1). Where: vis the minimum flow velocity in the discharge pipework = 0,7 m/s; diis the pipe internal diameter in mm; Q
42、minis the minimum flow rate in l/s. d vQ i 2 3- min 10 4 = ? (1) Page 6 EN 12050-1:2001 BSI 03-2001 Key a) Flow rate Q in l/s b) Pipe internal diameter di in mm c)Flow rate Q in m3/h Figure 1 Relationship between flow and pipe internal diameter of the discharge line 5.5Minimum passage of the plant T
43、he free passage in the faecal lifting plant at any point between the faecal inlet into the plant and the pumping device shall be at least 40 mm. 5.6Minimum size of discharge connections for non-macerating faecal lifting plants Discharge connections of non-macerating faecal lifting plants shall be at
44、 least DN 80. The ball passage of the non-return valve shall be at least 60 mm. Where required, the discharge connection shall be at least DN 50 and the ball passage of the non-return valve shall be at least 50 mm. 5.7Minimum size of discharge pipework for macerating faecal lifting plants Discharge
45、connections, discharge pipework and non-return valves for macerating faecal lifting plants shall be at least DN 32. 5.8Electrical equipment Where required, electrical equipment installed in effluent lifting plants shall be explosion-proof. If only the wet end of the pump is in the potentially explos
46、ive zone there is no need for explosion-proof motors. The electrical equipment of the plant shall comply with at least Protection Type IP 44 to EN 60529, even where it is located in a well ventilated space and is not subject to possible flooding. 5.9Fixing devices Faecal lifting plants shall incorpo
47、rate fixing devices to prevent rotation or floatation. Page 7 EN 12050-1:2001 BSI 03-2001 6Materials Materials used shall be adequate to meet the demands of installation and operation; they shall comply with the requirements of this standard and shall not release dangerous substances. Examples of su
48、itable materials for the construction of faecal lifting plants are given in annex B (informative). For materials where corrosion protection is necessary, such materials shall conform to the relevant corrosion protection requirements in force in the place of use of the plant. 7Testing documentation a
49、nd samples to be tested For the initial testing, the following documentation shall be provided: drawings, including information on materials used; operating and maintenance instructions (acceptable in manuscript form). The initial testing shall be carried out on the wastewater lifting plant with the lowest rated performance from each series. 8Testing 8.1General requirements Testing shall be carried out on a plant that complies with the shape, dimensions and materials given in the testing documentation. T
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