1、BRITISH STANDARD BS EN 806-2:2005 Specification for installations inside buildings conveying water for human consumption Part 2: Design The European Standard EN 806-2:2005 has the status of a British Standard ICS 91.140.60 BS EN 806-2:2005 This British Standard was published under the authority of t
2、he Standards Policy and Strategy Committee on 27 April 2005 BSI 27 April 2005 ISBN 0 580 45980 2 National foreword This British Standard is the official English language version of EN 806-2:2005. This part of BS EN 806 partially supersedes BS 6700:1997. On publication of parts 1 to 5 of BS EN 806, B
3、S 6700:1997 will be withdrawn. NOTE EN 806 parts 1 to 5 have been agreed by CEN to be a “package” with a common Date of Withdrawal for conflicting National Standards (Resolution CEN/BT/20/1993 and CEN/TC 164 Resolution 199 refer). The UK participation in its preparation was entrusted by Technical Co
4、mmittee B/504, Water supply, to Subcommittee B/504/2, Domestic installation design Internal, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or
5、European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to inclu
6、de all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquir
7、ies 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. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 49 and a back co
8、ver. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN8062 March2005 ICS91.140.60 Englishversion Specificationforinstallationsinsidebuildingsconv
9、eyingwater forhumanconsumptionPart2:Design Spcificationstechniquesrelativesauxinstallationspour leaudestinelaconsommationhumainelintrieurdes btimentsPartie2:Conception TechnischeRegelnfrTrinkwasserInstallationenTeil2: Planung ThisEuropeanStandardwasapprovedbyCENon3February2005. CENmembersareboundtoc
10、omplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEurope
11、anStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,C
12、zechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMI
13、TEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2005CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN8062:2005:EEN 806-2:2005 (E) 2 Contents Foreword3 1 Scope 4 2 Normative references 4 3 General requirements7 4 Private water supplies.9 5
14、 Acceptable materials.10 6 Components.14 7 Pipework inside buildings 14 8 Cold potable water services .15 9 Hot water systems .17 10 Prevention of bursting 18 11 Guidelines for water meter installations .21 12 Water conditioning 22 13 Acoustics23 14 Protection of systems against temperatures externa
15、l to pipes, fittings and appliances.23 15 Boosting .25 16 Pressure reducing valves .30 17 Combined drinking water and fire fighting services31 18 Prevention of corrosion damage32 19 Additional requirements for vented cold and hot water systems 33 Annex A (informative) List of acceptable materials (n
16、on-exhaustive)39 Annex B (informative) Aspects for water conditioning 42 Bibliography 49 EN 806-2:2005 (E) 3 Foreword This document (EN 806-2:2005) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR. This European Standard shall be given the
17、 status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2005, and conflicting national standards shall be withdrawn at the latest by September 2005. This document has been prepared under the direction of CEN/TC 164 and is intended for
18、the use of engineers, architects, surveyors, contractors, installers, water suppliers, consumers and regulatory inspections. This standard has been written in the form of a practice specification. It is the second part of a European Standard consisting of five parts as follows: Part 1: General Part
19、2: Design Part 3: Pipe sizing Part 4: Installation Part 5: Operation and maintenance NOTE : Products intended for use in water supply systems must comply, when existing, with national regulations and testing arrangements that ensure fitness for contact with drinking water. The Member states relevant
20、 regulators and the EC Commission agreed on the principle of a future unique European Acceptance Scheme (EAS), which would provide a common testing and approval arrangement at European level. If and when the EAS is adopted, European Product Standards will be amended by the addition of an Annex Z/EAS
21、 under Mandate M136 which will contain formal references to the testing, certification and product marking requirements of the EAS. Until EAS comes into force, the current national regulations remain applicable. According to the CEN/CENELEC Internal Regulations, the national standards organizations
22、of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, S
23、pain, Sweden, Switzerland and United Kingdom. EN 806-2:2005 (E) 4 1 Scope This document gives recommendations, and specifies requirements, on the design of potable water installations within buildings and for pipework outside buildings but within the premises (see EN 806-1) and applies to new instal
24、lations, alterations and repairs. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references the latest edition of the referenced document (including any amendments) ap
25、plies. EN 26, Gas-fired instantaneous water heaters for sanitary uses production, fitted with atmospheric burners (Including Corrigendum 1998). EN 89, Gas-fired storage water heaters for the production of domestic hot water. EN 545, Ductile iron, pipes, fittings, accessories and their joints for wat
26、er pipelines Requirements and test methods. EN 625, Gas-fired central heating boilers Specific requirements for the domestic hot water operation of combination boilers of nominal heat input not exceeding 70 kW . EN 805, Water supply Requirements for external systems and components outside buildings.
27、 EN 806-1:2000, Specifications for installations inside buildings conveying water for human consumption Part 1: General. prEN 806-3, Specifications for installations inside buildings conveying water for human consumption Part 3: Pipe sizing. EN 973, Chemicals used for treatment of water intended for
28、 human consumption Sodium chloride for regeneration of ion exchangers. EN 1057, Copper and copper alloys Seamless, round copper tubes for water and gas in sanitary and heating applications. EN 1254-1, Copper and copper alloys Plumbing fittings Part 1: Fittings with ends for capillary soldering or ca
29、pillary brazing to copper tubes. EN 1254-2, Copper and copper alloys Plumbing fittings Part 2: Fittings with compression ends for use with copper tubes. EN 1254-3, Copper and copper alloys Plumbing fittings Part 3: Fittings with compression ends for use with plastics pipes. EN 1254-4, Copper and cop
30、per alloys - Plumbing fittings - Part 4: Fittings combining other end connections with capillary or compression ends EN 1254-5, Copper and copper alloys Plumbing fittings Part 5: Fittings with short ends for capillary brazing to copper tubes. prEN 1254-7, Copper and copper alloys - Plumbing fittings
31、 - Part 7: Fittings with press ends for metallic tubes EN 1452-1, Plastics piping systems for water supply Unplasticized poly(vinyl chloride) (PVC-U) Part 1: General. EN 1452-2, Plastics piping systems for water supply Unplasticized poly(vinyl chloride) (PVC-U) Part 2: Pipes. EN 806-2:2005 (E) 5 EN
32、1452-3, Plastics piping systems for water supply Unplasticized poly(vinyl chloride) (PVC-U) Part 3 : Fittings. EN 1452-5, Plastics piping systems for water supply Unplasticized poly(vinyl chloride) (PVC-U) Part 5: Fitness for purpose of the system. ENV 1452-7, Plastics piping systems for water suppl
33、y Unplasticized poly(vinyl chloride) (PVC-U) Part 7: Guidance for the assessment of conformity. EN 1487, Building valves Hydraulic safety groups Tests and requirements. EN 1488, Building valves Expansion group Tests and requirements. EN 1489, Building valves Pressure safety valves Tests and requirem
34、ents. EN 1490, Building valves - Combined temperature and pressure relief valves - Tests and requirements. EN 1491, Building valves Expansion valve Tests and requirements. EN 1717, Protection against pollution of potable water in water installations and general requirements of devices to prevent pol
35、lution by backflow. EN 10226-1, Pipe threads where pressure tight joints are made on the threads - Part 1: Taper external threads and parallel internal threads - Dimensions, tolerances and designation. EN 10240, Internal and/or external protective coatings for steel tubes Specification for hot dip g
36、alvanized coatings applied in automatic plants. EN 10242, Threaded pipe fitting in malleable cast iron. EN 10255, Non-Alloy steel tubes suitable for welding and threading Technical delivery conditions. EN 10284, Malleable cast iron fittings with compression ends for polyethylene (PE) piping systems.
37、 EN 12201-1, Plastics piping systems for water supply Polyethylene (PE) Part 1: General EN 12201-2, Plastics piping systems for water supply Polyethylene (PE) Part 2: Pipes EN 12201-3, Plastics piping systems for water supply Polyethylene (PE) Part 3: Fittings. EN 12201-5, Plastics piping systems fo
38、r water supply Polyethylene (PE) Part 5: Fitness for purpose of the system. CEN/TS 12201-7, Plastics piping systems for water supply Polyethylene (PE) Part 7: Guidance for the assessment of conformity. EN 12502-1, Protection of metallic materials against corrosion Guidance on the assessment of corro
39、sion likelihood in water distribution and storage systems Part 1: General. EN 12502-2, Protection of metallic materials against corrosion Guidance on the assessment of corrosion likelihood in water distribution and storage systems Part 2: Influencing factors for copper and copper alloys. EN 12502-3,
40、 Protection of metallic materials against corrosion Guidance on the assessment of corrosion likelihood in water distribution and storage systems Part 3: Influencing factors for hot dip galvanised ferrous materials. prEN 12502-4, Protection of metallic materials against corrosion Guidance on the asse
41、ssment of corrosion likelihood in water distribution and storage conveying systems Part 4: Influencing factors for stainless steels. EN 12502-5, Protection of metallic materials against corrosion Guidance on the assessment of corrosion likelihood in water distribution and storage systems Part 5: Inf
42、luencing factors for cast iron, unalloyed and low alloyed steels. EN 806-2:2005 (E) 6 EN 12842, Ductile iron fittings for PVC-U or PE piping systems Requirements and test methods. EN 13443-1, Water conditioning equipment inside buildings - Mechanical filters - Part 1: Particle rating 80 m to 150 m -
43、 Requirements for performances, safety and testing. EN 14095, Water conditioning equipment inside buildings - Electrolytic treatment systems with aluminium anodes - Requirements for performance, safety and testing. EN 14525, Ductile iron wide tolerance couplings and flange adaptors for use with pipe
44、s of different materials: dutile iron, Grey iron, Steel, PVC-U PE, Fibre cement. prEN 14743, Water equipment inside buildings - Softeners - Requirements for performance, safety and testing. EN 29453, Soft solder alloys; chemical compositions and forms (ISO 9453:1990). EN 60335-2-21, Household and si
45、milar electrical appliances - Safety - Part 2-21: Particular requirements for storage water heaters (IEC 60335-2-21:2002, modified). EN 60335-2-35, Household and similar electrical appliances -Safety - Part 2-35: Particular requirements for instantaneous water heaters (IEC 60335-2-35:2002). EN 60534
46、-8-4, Industrial-process control valves Part 8 : Noise considerations Section 4: Prediction of noise generated by hydrodynamic flow (IEC 60534-8-4/1994). EN 60730-1, Automatic electrical controls for household and similar use Part 1: General requirements (IEC 60730-1:1999, modified). EN 60730-2-8, A
47、utomatic electrical controls for household and similar use Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements (IEC 60730-2-8:2000, modified). EN ISO 3822-1, Acoustics - Laboratory tests on noise emission from appliances and equipment used in w
48、ater supply installations - Part 1: Method of measurement (ISO 3822-1:1999). EN ISO 3822-2, Acoustics - Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 2: Mounting and operating conditions for draw-off taps and mixing valves (ISO 3822- 2:1995). EN ISO 3822-3, Acoustics - Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 3:
