SIST EN 16932-1:2018
(Main)Drain and sewer systems outside buildings - Pumping systems - Part 1: General requirements
Drain and sewer systems outside buildings - Pumping systems - Part 1: General requirements
This European Standard specifies requirements for design, construction and acceptance testing of wastewater pumping systems in drain and sewer systems outside the buildings they are intended to serve. It includes pumping systems installations in drain and sewer systems that operate essentially under gravity as well as systems using either positive pressure or partial vacuum.
This document gives general requirements applicable to all wastewater pumping systems in drain and sewer systems.
Entwässerungssysteme außerhalb von Gebäuden - Pumpsysteme - Teil 1: Allgemeine Anforderungen
Diese Europäische Norm legt Anforderungen für die Planung, den Bau und die Abnahmeprüfung von Pumpsystemen in Entwässerungssystemen außerhalb von Gebäuden, zu deren Entwässerung sie dienen, fest. Sie betrifft Pumpsysteme in Entwässerungssystemen, welche hauptsächlich als Freispiegelsysteme, sowie Systeme, die entweder mit Überdruck oder Unterdruck betrieben werden.
Dieses Dokument legt allgemeine Anforderungen an alle Pumpsysteme in Entwässerungssystemen fest.
Réseaux d'évacuation et d'assainissement à l'extérieur des bâtiments - Systèmes de pompage - Partie 1 : Exigences générales
La présente norme européenne fournit des prescriptions pour la conception, la construction et les essais d’acceptation des systèmes de pompage des eaux usées dans les réseaux d’évacuation et d’assainissement à l’extérieur des bâtiments qu’ils sont destinés à desservir. Elle couvre les installations de systèmes de pompage dans les réseaux d’évacuation et d’assainissement, principalement les réseaux gravitaires, ainsi que les réseaux utilisant soit une pression positive, soit un vide partiel.
Le présent document expose les exigences générales applicables à tous les systèmes de pompage des eaux usées dans les réseaux d’évacuation et d’assainissement.
Sistemi za odvod odpadne vode in kanalizacijo zunaj stavb - Črpalni sistemi - 1. del: Splošne zahteve
Ta evropski standard določa zahteve za projektiranje, izdelavo in preskušanje sprejemljivosti črpalnih sistemov odpadnih vod v sistemih za odvod in kanalizacijo zunaj stavb, v katerih so namenjeni za delovanje. Vključuje inštalacije črpalnih sistemov v sistemih za odvod in kanalizacijo, ki delujejo zlasti s pomočjo gravitacije, kot tudi v sistemih, ki uporabljajo pozitivni tlak ali delni vakuum.
Ta dokument podaja splošne zahteve, ki veljajo za vse črpalne sisteme odpadnih vod v sistemih za odvod in kanalizacijo.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Entwässerungssysteme außerhalb von Gebäuden - Pumpsysteme - Teil 1: Allgemeine AnforderungenRéseaux d'évacuation et d'assainissement à l'extérieur des bâtiments - Systèmes de pompage - Partie 1 : Exigences généralesDrain and sewer systems outside buildings - Pumping systems - Part 1: General requirements93.030Zunanji sistemi za odpadno vodoExternal sewage systemsICS:Ta slovenski standard je istoveten z:EN 16932-1:2018SIST EN 16932-1:2018en,fr,de01-junij-2018SIST EN 16932-1:2018SLOVENSKI
STANDARDSIST EN 1671:1998SIST EN 1091:20001DGRPHãþD
SIST EN 16932-1:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16932-1
April
t r s z ICS
{ uä r u r Supersedes EN
s r { sã s { { xá EN
s x y sã s { { yEnglish Version
Drain and sewer systems outside buildings æ Pumping systems æ Part
sã General requirements Réseaux d 5évacuation et d 5assainissement à l 5extérieur des bâtiments æ Systèmes de pompage æ Partie
sã Exigences générales
Entwässerungssysteme außerhalb von Gebäuden æ Pumpsysteme æ Teil
sã Allgemeine Anforderungen This European Standard was approved by CEN on
t t January
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
9
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x { u tæ sã t r s z ESIST EN 16932-1:2018
EN 16932-1:2018 (E) 2 Contents Page European foreword . 4 Introduction . 5 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 8 4 General . 11 5 Health and safety . 11 6 Types of pumping systems . 11 6.1 Introduction . 11 6.2 Single pumping station systems . 12 6.3 Lift stations . 12 6.3.1 General . 12 6.3.2 Pumping stations with screw pumps . 12 6.4 Pressure sewer systems . 13 6.5 Vacuum sewer systems . 14 6.6 Selection . 15 7 Planning of pumping systems . 17 7.1 Introduction . 17 7.2 Performance requirements . 17 7.3 Location . 18 7.3.1 General . 18 7.3.2 Location of pumping stations and vacuum stations . 18 8 Detailed design of pumping stations and vacuum stations . 19 8.1 Introduction . 19 8.2 External layout and access . 19 8.3 Environmental impact . 20 8.3.1 General . 20 8.3.2 Impact of discharges from overflows . 20 8.3.3 Noise and vibration . 20 8.3.4 Odour control . 20 8.3.5 Visual impact . 20 8.4 Structural design . 20 8.5 Power supply . 21 8.6 Resilience . 21 8.7 Pump units . 22 8.7.1 General . 22 8.7.2 Impellers . 23 8.7.3 Pump drivers and drives . 23 8.8 Instrumentation, controls and electrical equipment . 24 8.8.1 General . 24 8.8.2 Control systems . 24 8.8.3 Monitoring . 24 8.8.4 Power switchgear and controlgear assemblies (PSC-ASSEMBLIES) . 25 SIST EN 16932-1:2018
EN 16932-1:2018 (E) 3 8.9 Cabinets and buildings. 26 8.10 Maintenance considerations . 26 9 Detailed design of rising mains and vacuum pipelines . 26 9.1 Introduction. 26 9.2 Structural design . 26 9.3 Choice of materials and components . 27 9.4 Discharge points . 28 9.5 Valves and valve chambers . 28 9.5.1 Valves . 28 9.5.2 Valve chambers . 28 9.6 Means of inspection . 29 10 Installation . 29 10.1 Installation of pipelines. 29 10.2 Installation of pumping stations and vacuum stations . 29 11 Testing and commissioning . 29 11.1 Commissioning . 29 12 Operations and maintenance . 29 12.1 Introduction. 29 12.2 Inspection and maintenance activities . 30 12.3 Operations and maintenance manuals and training . 31 Bibliography . 32
SIST EN 16932-1:2018
EN 16932-1:2018 (E) 4 European foreword This document (EN 16932-1:2018) 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, at the latest by October 2018, and conflicting national standards shall be withdrawn at the latest by October 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN not be held responsible for identifying any or all such patent rights. Together with EN 16932-2:2018 and EN 16932-3:2018, this document supersedes EN 1091:1996 and EN 1671:1997. EN 16932, Drain and sewer systems outside buildings — Pumping systems, contains the following parts: — Part 1: General requirements; — Part 2: Positive pressure systems; — Part 3: Vacuum systems. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16932-1:2018
EN 16932-1:2018 (E) 5 Introduction Drain and sewer systems are part of the overall wastewater system that provides a service to the community. This can be briefly described as: — removal of wastewater from premises for public health and hygienic reasons; — prevention of flooding in urbanised areas; — protection of the environment. The overall wastewater system has four successive functions: — collection; — transport; — treatment; — discharge. Collection and transport of wastewater is provided by drain and sewer systems. EN 752 provides a framework for the design, construction, maintenance, operation and rehabilitation of drain and sewer systems outside buildings. This is illustrated in the upper part of the diagram in Figure 1. EN 752 is supported by more detailed standards for the investigation, design, construction, organization and control of drain and sewer systems. Investigation and assessment standards include: — EN 13508 (all parts), Investigation and assessment of drain and sewer systems outside buildings. Design and construction standards include: — EN 16932 (all parts), Drain and sewer systems outside buildings — Pumping systems; — EN 16933-2, Drain and sewer systems outside buildings — Design — Part 2: Hydraulic design; — EN 1295-1, Structural design of buried pipelines under various conditions of loading - Part 1: General requirements; — EN 1610, Construction and testing of drains and sewers; — EN 12889, Trenchless construction and testing of drains and sewers; — EN 15885, Classification and characteristics of techniques for renovation and repair of drains and sewers. Management and control standards include: — EN 14654 (all parts), Management and control of operational activities in drain and sewer systems outside buildings. To support these detailed standards information can come from specifications produced by individual organisations for their own use. Product standards take also into account the functional requirements in EN 752 through EN 476, EN 13380 and EN 14457. SIST EN 16932-1:2018
EN 16932-1:2018 (E) 6
Figure 1 —Relationship to EN 752:2017 and other drain and sewer standards [Source: EN 752:2017] Wastewater lifting installations in buildings and on private properties are in the scope of EN 12050 (all parts). SIST EN 16932-1:2018
EN 16932-1:2018 (E) 7 1 Scope This European Standard specifies requirements for design, construction and acceptance testing of wastewater pumping systems in drain and sewer systems outside the buildings they are intended to serve. It includes pumping systems in drain and sewer systems that operate essentially under gravity as well as systems using either positive pressure or partial vacuum. This document gives general requirements applicable to all wastewater pumping systems in drain and sewer systems. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 752:2017, Drain and sewer systems outside buildings — Sewer system management EN 1127-1, Explosive atmospheres — Explosion prevention and protection — Part 1: Basic concepts and methodology EN 1295-1, Structural design of buried pipelines under various conditions of loading — Part 1: General requirements EN 1610, Construction and testing of drains and sewers EN 1990, Eurocode — Basis of structural design EN 1991 (all parts), Eurocode 1: Actions on structures EN 12889, Trenchless construction and testing of drains and sewers EN 13463 (all parts), Non-electrical equipment for use in potentially explosive atmospheres EN 14654 (all parts), Management and control of operational activities in drain and sewer systems outside buildings EN 16323:2014, Glossary of wastewater engineering terms EN 16932-2, Drain and sewer systems outside buildings — Pumping systems — Part 2: Positive pressure systems EN 16932-3, Drain and sewer systems outside buildings — Pumping systems — Part 3: Vacuum systems EN 60079 (all parts), Explosive atmospheres — Part 0: Equipment — General requirements (IEC 60076 series) EN 60204-1, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204-1) EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529) EN 61439-1, Low-voltage switchgear and controlgear assemblies — Part 1: General rules (IEC 61439-1) SIST EN 16932-1:2018
EN 16932-1:2018 (E) 8 EN 61439-2, Low-voltage switchgear and controlgear assemblies — Part 2: Power switchgear and controlgear assemblies (IEC 61439-2) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 16323 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http://www.electropedia.org/ — ISO Online browsing platform: available at http://www.iso.org/obp Note 1 to entry: Certain key definitions from EN 16323:2014 have been repeated below for clarity. The following additional terms used in this document are defined in EN 16323: aerobic; outfall; collection tank; pumping station; combined sewer overflow; relevant authority; confined space; rising main; detention tank; self-cleansing; drain; septic wastewater; dry weather flow; sewer; extraneous flow; sewer system; industrial wastewater; surface receiving water body; maintenance; wastewater treatment plant. manhole;
3.1 collection chamber chamber containing a collection tank and associated pump or interface valve unit 3.2 controller device that activates a pump or interface valve 3.3 duty point target values of the total head or pressure of the pump and the rate of flow for which the pump is designed or selected [SOURCE: EN ISO 17769-1:2012, 2.1.13.1] 3.4 forwarding pump pump transporting wastewater from a vacuum system to a wastewater treatment plant, or another drain or sewer system SIST EN 16932-1:2018
EN 16932-1:2018 (E) 9 3.5 foul wastewater wastewater comprising domestic wastewater and/or industrial wastewater [SOURCE: EN 16323:2014, 2.1.2.6] 3.6 interface valve valve in a collection chamber admitting wastewater and air into a vacuum sewer through a vacuum drain 3.7 level sensor device sensing the level of wastewater in a collection tank and activating a controller when a batch volume has accumulated in the collection tank 3.8 lift section section of a vacuum pipeline with an increase in invert level in the direction of flow 3.9 lift station pumping system that raises the elevation of the flow at a location 3.10 low voltage voltage rating of between 50 V and 1 000 V for alternating current and between 75 V and 1 500 V for direct current 3.11 profile vertical alignment of a pipeline 3.12 pump mechanical device for moving fluids, including inlet and outlet connections as well as, in general, a shaft end 3.13 pump unit assemblage of mechanical devices, including the pump and the driver, together with transmission elements, baseplate and any auxiliary equipment [SOURCE: EN ISO 17769-1:2012, 2.1.1.2] 3.14 pump driver driver machine supplying mechanical energy to power the pump [SOURCE: EN ISO 17769-1:2012, 2.1.17.23] SIST EN 16932-1:2018
EN 16932-1:2018 (E) 10 3.15 pumping system system consisting of a pump or pumps and those interacting or interrelating elements, which together accomplish the specified work Note 1 to entry: The pumping system generally includes (but is not necessarily limited to) the pump driver, drives, cabling, control and monitoring devices and those piping elements that transfer liquid from and to the pump. [SOURCE: EN ISO 17769-2:2012, 2.1.7] 3.16 slope section section of a vacuum pipeline with decreasing invert level in the direction of flow 3.17 surface water water from precipitation, which has not seeped into the ground and is discharged to the drain or sewer system directly from the ground or from exterior building surfaces [SOURCE: EN 16323:2014, 2.1.1.3] 3.18 vacuum generator equipment installed at a vacuum station to generate sub-atmospheric pressure 3.19 vacuum pipeline pipeline for conveying wastewater under sub-atmospheric pressure 3.20 vacuum drain drain that is a vacuum pipeline 3.21 vacuum sewer sewer that is a vacuum pipeline 3.22 vacuum station part of a vacuum sewer system generating sub-atmospheric pressure and forwarding wastewater through a rising main 3.23 vacuum vessel vessel connected to a vacuum sewer in which a vacuum generator maintains sub-atmospheric pressure and from which a forwarding pump removes wastewater 3.24 wastewater water composed of any combination of water discharged from domestic, industrial or commercial premises, surface run-off and accidentally any sewer infiltration water [SOURCE: EN 16323:2014, 2.3.10.65] SIST EN 16932-1:2018
EN 16932-1:2018 (E) 11 4 General EN 752:2017 specifies functional requirements and principles for the planning, design, construction, operation and maintenance of drain and sewer systems outside buildings. EN 752:2017 requires that the design and operation of the system shall, so far as practicable, minimize the use of energy over the life of the system. Pumping stations can be necessary in gravity drain and sewer systems in order to avoid excessive depths, or to drain low lying areas. They can also be necessary at combined sewer overflows or outfalls in order to discharge flows toward treatment works or receiving water bodies. Pressure or vacuum systems can be used as alternatives to, or as part of systems operating essentially under gravity. Pumping systems shall be designed in accordance with the principles described in EN 752:2017. For positive pressure systems, this European Standard shall be read in conjunction with EN 16932-2 and positive pressure systems shall also meet the requirements of EN 16932-2. For vacuum systems, this European Standard shall be read in conjunction with EN 16932-3 and vacuum systems shall also meet the requirements of EN 16932-3. 5 Health and safety The principles for occupational health and safety set out in EN 752:2017, Clause 7, should be applied to the design, construction and operation of pumping stations, pressure systems and vacuum systems. The Safety and Health Framework Directive (89/391/EEC) together with its daughter directives and other relevant safety and health directives can apply. A number of these are listed in EN 752. NOTE National or local regulations or the relevant authority can specify additional requirements regarding the health, safety and welfare of the public and operator personnel. The identification and assessment of hazardous situations that can lead to a potential explosion and the design and construction of appropriate safety measures shall be carried out in accordance with EN 1127-1. Electrical equipment for use in potentially explosive areas shall comply with the requirements of the relevant parts of the EN 60079 series. Non-electrical equipment for use in potentially explosive areas shall comply with the requirements of the relevant parts of the EN 13463 series. 6 Types of pumping systems 6.1 Introduction There are four principal types of pumping systems: — single pumping station systems discharging into one or more rising mains; — lift stations either without a rising main or with a short, essentially vertical, rising main; — pressure sewer systems with several pumping stations discharging through one or more rising mains to a single point; — vacuum sewer systems with a single vacuum station collecting wastewater from a number of sources through one or more vacuum mains. SIST EN 16932-1:2018
EN 16932-1:2018 (E) 12 6.2 Single pumping station systems These comprise a single pumping station discharging into either a single rising main or two or more parallel rising mains as shown in Figure 2. They are sometimes necessary within a drain and sewer system that otherwise drains essentially by gravity.
Key 1 incoming gravity sewer 4 manhole 2 pumping station 5 downstream gravity sewer 3 rising main
Figure 2 —Example of a single pumping station system 6.3 Lift stations 6.3.1 General A lift station is a type of pumping station where the discharge point is in the same location as the pumping station. It can include a short, essentially vertical, rising main. Alternatively, lift stations may comprise a screw pump. Lift stations can be used: — to transfer flow between adjacent gravity sewers at different levels; — to lift flows into a wastewater treatment plant or; — to lift surface water flows into an adjacent surface receiving water body. 6.3.2 Pumping stations with screw pumps Pumping stations with screw pumps (see Figure 3) can be used where it is only necessary to lift the wastewater without the need to generate pressure. Pumping stations with screw pumps can be used where the lift is limited to a few metres and where there is little variation in the water level at the discharge. They are resistant to blockage. SIST EN 16932-1:2018
EN 16932-1:2018 (E) 13
Key 1 screw 3 upper bearing 2 pump motor 4 lower bearing Figure 3 — Example of a lift station with screw pumps 6.4 Pressure sewer systems A pressure sewer system comprises a single pressure pipe or a branched or grid network of pressure pipes. A pressure sewer system is designed to collect and transport domestic or industrial wastewater. It is not usually used for the collection and transport of surface water. Pumping stations are connected to the pressure pipe(s). The downstream boundary of the system is the point where the total flow from the system discharges into a downstream system (e.g. into a gravity sewer, a manhole or wastewater treatment plant). A typical house connection to a pressure sewer system is shown in Figure 4. An example of a plan of a typical pressure sewer system is shown in Figure 5.
Key 1 drain 4 isolation valve (alternative positions) 2 pump unit 5 rising main connection 3 collection tank 6 rising main Figure 4 —Typical house connection to a pressure sewer system SIST EN 16932-1:2018
EN 16932-1:2018 (E) 14
Key 1 gravity drain 3 rising main connection 2 pumping station 4 rising main Figure 5 —Plan of typical pressure sewer system 6.5 Vacuum sewer systems A vacuum sewer system comprises a vacuum sewer, or a network of vacuum sewers and vacuum drains, connecting a number of collection chambers to a single vacuum station. A vacuum sewer system is designed to collect domestic and industrial wastewater and is not usually used for the collection of surface water. Vacuum mains have a vertical profile containing slope sections (sections that slope downwards in the direction of flow) followed by lift sections (see Figure 6).
Key 1 collection chamber 4 lift section 2 vacuum pipeline 5 vacuum station 3 slope section
Figure 6 — Vacuum sewer system SIST EN 16932-1:2018
EN 16932-1:2018 (E) 15
Key 1 gravity drain 3 vacuum drain 2 collection chamber 4 vacuum sewer Figure 7 —Typical house connection to a vacuum sewer system A vacuum station is provided with a vacuum vessel, vacuum generators maintaining sub-atmospheric (vacuum) pressure in the vacuum vessel, and forwarding pumps that draw wastewater from the vacuum vessel and pump it through a rising main to the downstream system. Sub-atmospheric pressure is transmitted from the vacuum vessel through upstream vacuum sewers and vacuum drains to collection chambers (see Figure 7). An interface valve is provided in each collection chamber keeping the vacuum dr
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