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    EN 16941-1-2018 On-site non-potable water systems - Part 1 Systems for the use of rainwater.pdf

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    EN 16941-1-2018 On-site non-potable water systems - Part 1 Systems for the use of rainwater.pdf

    1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06On-site non-potable water systemsPart 1: Systems for the use of rainwaterBS EN 169411:2018National forewordThis British Standard is the UK implementation of EN 169411:2018. It supersedes BS 8515:2009+A1:2013, which is w

    2、ithdrawn.The UK participation in its preparation was entrusted to Technical Committee B/505/50, Water reuse.A list of organizations represented on this committee can be obtained on request to its secretary.The UK Technical Committee offers the following additional guidance in respect of the contents

    3、 of this standard, specifying the national regulations, standards and guidance. Its purpose is to maintain the levels of protection and performance previously set out in the British Standard BS 8515:2009+A1:2013, Rainwater harvesting systems Code of practice, which this standard replaces. See also N

    4、ational Annex NA, which has been appended at the back of the standard.In particular, attention is drawn to the following regulations: the Workplace (Health, Safety and Welfare) Regulations 1992;1 the Confined Spaces Regulations 1997;2and the Work at Height Regulations 2005.3The following national re

    5、gulations apply to plumbing systems in premises to which a supply of public mains water has been provided. They are often referred to as the Water Fittings Regulations and Byelaws. These regulations may also apply to premises that source their water from boreholes, wells, etc., if they are provided

    6、with a public supply backup: the Water Supply (Water Fittings) Regulations 1999, in England and Wales;4 the Water Supply (Water Fittings) (Scotland) Byelaws 2014, in Scotland;5and the Water Supply (Water Fittings) Regulations (Northern Ireland) 2009, in Northern Ireland.6The following national regul

    7、ations apply to systems in premises where water is drawn from private wells, boreholes, etc., and are often referred to as the Private Water Supply Regulations: the Private Water Supplies (England) Regulations 2016, in England;7 the Private Water Supplies (Wales) Regulations 2010, in Wales;8 the Pri

    8、vate Water Supplies (Scotland) Regulations 2006, in Scotland;9and the Private Water Supplies Regulations (Northern Ireland) 2009, in Northern Ireland.10This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The Brit

    9、ish Standards Institution 2018 Published by BSI Standards Limited 2018BRITISH STANDARDBS EN 169411:2018ISBN 978 0 580 89028 4ICS 93.025Compliance with a British Standard cannot confer immunity from legal obligationsThis British Standard was published under the authority of the Standards Policy and S

    10、trategy Committee on 31 July 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARD BS EN 169411:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16941-1 January 2018 ICS 93.025 English Version On-site non-potable water systems - Part 1: Systems for the use of

    11、rainwater Rseaux deau non potable sur site - Partie 1 : Systmes pour lutilisation de leau de pluie Vor-Ort-Anlagen fr Nicht-Trinkwasser - Teil 1: Anlagen fr die Verwendung von Regenwasser This European Standard was approved by CEN on 28 August 2017. CEN members are bound to comply with the CEN/CENEL

    12、EC 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 CEN-CENELEC Management Centre or

    13、 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 CEN-CENELEC Management Centre has the same status as the offi

    14、cial versions. CEN members are the national standards bodies of 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,

    15、 Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN Al

    16、l rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16941-1:2018 EEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16941-1 January 2018 ICS 93.025 English Version On-site non-potable water systems - Part 1: Systems for the use of rainwat

    17、er Rseaux deau non potable sur site - Partie 1 : Systmes pour lutilisation de leau de pluie Vor-Ort-Anlagen fr Nicht-Trinkwasser - Teil 1: Anlagen fr die Verwendung von Regenwasser This European Standard was approved by CEN on 28 August 2017. CEN members are bound to comply with the CEN/CENELEC Inte

    18、rnal 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 CEN-CENELEC Management Centre or to any

    19、 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 CEN-CENELEC Management Centre has the same status as the official ve

    20、rsions. CEN members are the national standards bodies of 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

    21、, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All right

    22、s of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16941-1:2018 EBS EN 169411:2018EN 16941-1:2018 (E) 2 Contents Page European foreword . 4 Introduction 5 1 Scope 6 2 Normative references 6 3 Terms and definitions . 7 4 Functional elements of rain

    23、water harvesting systems . 8 5 Design 8 5.1 Collection . 8 5.1.1 General 8 5.1.2 Collection surfaces 9 5.1.3 Collection piping system . 9 5.2 Treatment 9 5.2.1 General 9 5.2.2 Preliminary treatment . 10 5.2.3 Additional treatment 10 5.3 Storage . 10 5.3.1 General . 10 5.3.2 Materials 11 5.3.3 Dimens

    24、ions . 11 5.3.4 Capacity 11 5.3.5 Structural behaviour . 11 5.3.6 Watertightness 11 5.3.7 Connections and internal pipe system . 11 5.3.8 Access . 12 5.3.9 Overflow 12 5.4 Back-up water supply . 12 5.4.1 General . 12 5.4.2 Backflow protection device 13 5.5 Pumping . 14 5.5.1 General . 14 5.5.2 Subme

    25、rged pump . 15 5.5.3 Non-submerged pump 15 5.5.4 Expansion vessel 16 5.5.5 Pump control unit 16 5.6 System control with monitoring . 16 5.7 Metering 17 5.8 Distribution 17 5.9 Risk assessment 17 6 Sizing . 18 6.1 Storage device . 18 6.1.1 General . 18 6.1.2 Determination of the available volume of r

    26、ainwater 19 6.1.3 Determination of the non-potable water demand per day . 20 6.1.4 Calculation methods 20 BS EN 169411:2018EN 16941-1:2018 (E) 3 6.2 Back-up water supply . 20 7 Installation 21 8 Differentiation and identification. 21 9 Commissioning 22 10 Quality of non-potable water . 22 11 Mainten

    27、ance . 23 Annex A (informative) Examples of calculation methods for storage capacity . 24 A.1 General . 24 A.2 Examples of calculation methods . 24 A.2.1 Basic approach with annual time step 24 A.2.2 Detailed approach 25 A.2.2.1 General . 25 A.2.2.2 Input data 26 A.2.2.3 Simulation principle 26 A.2.

    28、2.4 Application of results 27 Annex B (informative) Examples of rainwater harvesting systems with different back-up supply arrangements 29 Annex C (informative) Example for a commissioning sheet and logbook . 32 C.1 Commissioning sheet 32 C.2 Logbook 33 Annex D (informative) Inspection and maintenan

    29、ce 34 Bibliography . 35 BS EN 169411:2018EN 16941-1:2018 (E) 4 European foreword This document (EN 16941-1:2018) 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 stand

    30、ard, either by publication of an identical text or by endorsement, at the latest by July 2018 and conflicting national standards shall be withdrawn at the latest by July 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN an

    31、d/or CENELEC shall not be held responsible for identifying any or all such patent rights. EN 16941, On-site non-potable water systems consists of the following parts: Part 1: Systems for the use of rainwater Part 2: Systems for the use of greywater (in preparation) According to the CEN-CENELEC Inter

    32、nal 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, Ir

    33、eland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 169411:2018EN 16941-1:2018 (E) 5 Introduction Ecological and sustainable water management is a goal of rain

    34、water management. Herein rainwater harvesting and infiltration, as well as the decentralized detention of rainwater, are alternatives to the customary drainage of rainwater. Rainwater harvesting also reduces the potable water demand and the discharge of water. In order to keep the natural cycle of w

    35、ater, excess water from the rainwater harvesting system can be infiltrated or otherwise evacuated in line with national or regional requirements. On-site collection and use of rainwater covers a variety of applications like toilet flushing, laundry, irrigation, climate control of buildings, cleaning

    36、, etc. at private and rented properties, residential areas, community developments, industrial sites, hotels, streets, parks, golf courses, theme parks, car parks, stadia, etc. A generic flow chart of rainwater use on-site is presented in Figure 1. Figure 1 Generic flow chart of rainwater use BS EN

    37、169411:2018EN 16941-1:2018 (E) 6 1 Scope This European Standard specifies the requirements and gives recommendations for the design, sizing, installation, identification, commissioning and maintenance of rainwater harvesting systems for the use of rainwater on-site as non-potable water. This Europea

    38、n Standard also specifies the minimum requirements for these systems. Excluded from the scope of this European Standard are: the use as drinking water and for food preparation; the use for personal hygiene purposes; decentralized attenuation; infiltration. NOTE Conformity with the standard does not

    39、exempt from compliance with the obligations arising from local or national regulations. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. Fo

    40、r undated references, the latest edition of the referenced document (including any amendments) applies. EN 476, General requirements for components used in drains and sewers EN 805, Water supply - Requirements for systems and components outside buildings EN 806-2, Specification for installations ins

    41、ide buildings conveying water for human consumption - Part 2: Design EN 806-3, Specifications for installations inside buildings conveying water for human consumption - Part 3: Pipe sizing - Simplified method EN 809, Pumps and pump units for liquids - Common safety requirements EN 1295-1, Structural

    42、 design of buried pipelines under various conditions of loading - Part 1: General requirements EN 1610, Construction and testing of drains and sewers EN 1717, Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow EN

    43、12050 (all parts), Wastewater lifting plants for buildings and sites EN 12056-1, Gravity drainage systems inside buildings - Part 1: General and performance requirements EN 12056-3, Gravity drainage systems inside buildings - Part 3: Roof drainage, layout and calculation EN 12056-4, Gravity drainage

    44、 systems inside buildings - Part 4: Wastewater lifting plants - Layout and calculation BS EN 169411:2018EN 16941-1:2018 (E) 7 EN 12056-5, Gravity drainage systems inside buildings - Part 5: Installation and testing, instructions for operation, maintenance and use EN 12566-3, Small wastewater treatme

    45、nt systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plants EN 13076, Devices to prevent pollution by backflow of potable water - Unrestricted air gap-Family A - Type A EN 13077, Devices to prevent pollution by backflow of potable water - Air gap with non

    46、-circular overflow (unrestricted) - Family A - Type B EN 13564 (all parts), Anti-flooding devices for buildings EN 16323:2014, Glossary of wastewater engineering terms EN 60335-2-41, Household and similar electrical appliances - Safety - Part 2-41: Particular requirements for pumps (IEC 60335-2-41)

    47、EN ISO 4064 (all parts), Water meters for cold potable water and hot water (ISO 4064) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 16323:2014 and the following apply. 3.1 rainwater water arising from atmospheric precipitation SOURCE: EN 16323:2014,

    48、 2.1.1.1, modified 3.2 rainwater harvesting collecting rainwater from surfaces in order to be used 3.3 rainwater harvesting system system for collecting rainwater from surfaces in order to be used, which consists of collection, treatment, storage and distribution elements 3.4 storage device unit for

    49、 the storage of harvested rainwater 3.5 cistern fixed container for holding water at atmospheric pressure for use as part of the plumbing system 3.6 non-potable water water which has been made available for use, except for drinking, food preparation and personal hygiene BS EN 169411:2018EN 16941-1:2018 (E) 8 3.7 non-return valve device that prevents backflow of water SOURCE: EN 16323:2014, 2.2.5.12, modified: “wastewater“ was changed to “water“ 3.8 volume of useable water maximum volume of water that can be extract


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