SIST EN 15848:2012
(Main)Water conditioning equipment inside buildings - Adjustable chemical dosing systems - Requirements for performance, safety and testing
Water conditioning equipment inside buildings - Adjustable chemical dosing systems - Requirements for performance, safety and testing
This standard specifies definitions, principles of construction (but not dimensions) and design, requirements on performance and operation as well as methods for testing the performance of adjustable chemical dosing systems for conditioning water intended for human consumption inside buildings (see [1]) which are permanently connected to the mains supply.
Anlagen zur Behandlung von Trinkwasser innerhalb von Gebäuden - Einstellbare Dosiersysteme - Anforderungen an Ausführung, Sicherheit und Prüfung
Diese Europäische Norm legt Begriffe, Grundsätze zur Konstruktion (jedoch keine Maße) und Gestaltung,
Anforderungen an die Funktion und den Betrieb sowie Verfahren zur Prüfung der Leistungsanforderungen von
einstellbaren Dosiersystemen zur Behandlung von Wasser, das für den menschlichen Gebrauch bestimmt ist
(siehe [1]), fest, die fest am Eintrittspunkt des Wassers in die Hausinstallation angeschlossen sind.
Appareils de traitement d'eau à l'intérieur des bâtiments - Systèmes de dosage ajustables - Exigences de performance, de sécurité et essais
La présente Norme spécifie les définitions, les principes de conception et de construction (mais pas les dimensions), les exigences relatives aux performances et au fonctionnement ainsi que les méthodes d’essai applicables aux systèmes de dosage ajustables de réactifs chimiques utilisés pour le traitement de l’eau destinée à la consommation humaine à l’intérieur des bâtiments (voir [1]), et qui sont raccordés en permanence au réseau.
Oprema, ki se uporablja za pripravo pitne vode v stavbah - Nastavljivi sistemi za doziranje kemikalij - Zahteve za delovanje, varnost in preskušanje
Ta evropski standard določa definicije, načela gradnje (vendar ne dimenzij) in načrtovanje, zahteve za zmogljivost in delovanje ter metode za preskušanje zmogljivosti nastavljivih sistemov za odmerjanje kemikalij za pripravo pitne vode v zgradbah (glej [1]), ki so stalno priključene na glavno omrežje. Koncentracija aktivne(-ih) kemikalije(kemikalij) in drugih sestavin ali manjših komponent (vključno z mogočimi onesnaževali) v pripravljeni vodi naj ne presega parametričnih vrednosti, podanih v obstoječi zakonodaji v državah članicah za pitno vodo, kot jo izvajajo nacionalni organi.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Oprema, ki se uporablja za pripravo pitne vode v stavbah - Nastavljivi sistemi za doziranje kemikalij - Zahteve za delovanje, varnost in preskušanjeAnlagen zur Behandlung von Trinkwasser innerhalb von Gebäuden - Einstellbare Dosiersysteme - Anforderungen an Ausführung, Sicherheit und PrüfungAppareils de traitement d'eau à l'intérieur des bâtiments - Systèmes de dosage ajustables - Exigences de performance, de sécurité et essaisWater conditioning equipment inside buildings - Adjustable chemical dosing systems - Requirements for performance, safety and testing91.140.60Sistemi za oskrbo z vodoWater supply systems13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 15848:2010SIST EN 15848:2012en,fr,de01-januar-2012SIST EN 15848:2012SLOVENSKI
STANDARD
SIST EN 15848:2012
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15848
February 2010 ICS 13.060.20; 91.140.60 English Version
Water conditioning equipment inside buildings - Adjustable chemical dosing systems - Requirements for performance, safety and testing
Appareils de traitement d'eau à l'intérieur des bâtiments - Systèmes de dosage chimique ajustables - Exigences de performance, de sécurité et essais
Anlagen zur Behandlung von Trinkwasser innerhalb von Gebäuden - Einstellbare Dosiersysteme - Anforderungen an Ausführung, Sicherheit und Prüfung This European Standard was approved by CEN on 9 January 2010.
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 on application to the CEN 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 CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15848:2010: ESIST EN 15848:2012
EN 15848:2010 (E) 2 Contents Page Foreword .31Scope .42Normative references .43Terms and definitions .44Design requirements .54.1General .54.2Dosing system components .54.3Materials of construction .54.4Venting .54.5Radio interference and electrical safety .54.6Accessibility .54.7Nominal size .54.8Manual mode .65Performance requirements .65.1Chemicals .65.2Dosing system components .65.3Protection against overdosing .75.4Working temperature range .75.5Pressure conditions .76Testing .86.1General .86.2Operating characteristics .86.3Pressure test . 107Labelling . 10Annex A (normative)
Installation, operation and maintenance . 11Bibliography . 15 SIST EN 15848:2012
EN 15848:2010 (E) 3 Foreword This document (EN 15848:2010) 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 status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2010, and conflicting national standards shall be withdrawn at the latest by August 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. NOTE Products intended for use in water supply systems should comply, when existing, with national regulations and testing arrangements that ensure fitness for contact with drinking water. On April 2006, EC Commission set up a revised mandate (M/136) asking CEN to propose harmonised product standards and support standards for test methods which could be used for assessing the fitness for contact with drinking water. In parallel, EC Commission has launched processes for a regulation of construction products (CPR) to be substituted to CP directive (89/106/EC) and for the revision of drinking water directive (98/83/EC). If relevant, when the outputs of these processes are known, European product standards will be amended by the addition of an Annex Z under Mandate M136 which will contain formal references to the applicable requirements. Until such amendments, the current national regulations remain applicable.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
SIST EN 15848:2012
EN 15848:2010 (E) 4 1 Scope This European Standard specifies definitions, principles of construction (but not dimensions) and design, requirements on performance and operation as well as methods for testing the performance of adjustable chemical dosing systems for conditioning water intended for human consumption inside buildings (see [1]) which are permanently connected to the mains supply. The concentration in the treated water of the active chemical(s) as well as of any other ingredient or minor component (including possible contaminants) should not exceed the parametric values laid down in the existing legislation in the Member States for the water intended for the human consumption, as implemented by the national authorities. 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) applies. EN 55011, Industrial, scientific and medical (ISM) radio-frequency equipment — Electromagnetic disturbance characteristics — Limits and methods of measurement (CISPR 11:2003 + A1:2004, modified) EN 60204-1, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204-1:2005, modified) EN 60335-1, Household and similar electrical appliances — Safety — Part 1: General requirements (IEC 60335-1:2001, modified) EN 60335-2-41, Household and similar electrical appliances — Safety — Part 2-41: Particular requirements for pumps (IEC 60335-2-41:2002) EN ISO 12100-1, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic terminology, methodology (ISO 12100-1:2003) EN ISO 12100-2, Safety of machinery — Basic concepts, general principles for design — Part 2: Technical principles (ISO 12100-2:2003) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 adjustable dosing system device used for the controlled addition of chemicals in concentrations that can be adjusted on the installation site 3.2 working range range of treated water flow rates between which the dosing system provides the required accuracy of concentration of the chemicals within limits of concentration and pressure drop prescribed by the manufacturer. NOTE The working range covers the range between the upper and lower working limits. 3.3 dosing agent active chemical substance for conditioning water intended for human consumption SIST EN 15848:2012
EN 15848:2010 (E) 5 4 Design requirements 4.1 General The dosing system shall function to maintain a specific concentration of the chemical in the treated water. 4.2 Dosing system components A dosing system comprises the following elements: a) storage tank or chemical container which contains the chemical as a liquid that will be dosed into the water pipe; b) suction device which comprises a suction hose and a foot valve; c) low level detection avoiding the pump to work when storage is empty; d) dosing pump that pumps the chemical as a liquid from the storage tank or container and doses it into the main water flow; e) overpressure valve as safety apparatus to avoid overpressure in the injection device; f) injection device which comprises the hose between the pump and the mains, the injection valve and the backflow preventer; g) water meter in the main water flow which transmits a control signal to the dosing pump. 4.3 Materials of construction Parts in contact with drinking water shall comply with national regulations. The temperature resistance of the injection system shall be specified. 4.4 Venting The dosing system shall be designed so that accumulation of air or other gases is prevented. Compliance with this requirement shall be checked by examination of the detailed technical design documents supplied with the system. 4.5 Radio interference and electrical safety The dosing system shall conform to EN 12100-1, EN 12100-2, EN 55011, EN 60204-1, EN 60335-1 and EN 60335-2-41, following the provisions of Directive 89/336/EEC [2] and Directive 73/23/EEC [3]. 4.6 Accessibility All parts which have to be accessed for replenishing of the dosing agent and for operation or servicing shall be easily accessible. 4.7 Nominal size If the dosing pump is controlled by signals from a water meter, the nominal size of its connection shall correspond to the flow rates given in Table 1. The inlet connection size of the water meter may be one size larger or smaller than the nominal size. For flange connections, the inlet flange shall conform to the nominal size. SIST EN 15848:2012
EN 15848:2010 (E) 6 Table 1 — Upper limit flow rate values Nominal size DN of water meter 15 20 25 32 40 50 65 80 100 Upper limit of flow rate l/s 0,35 0,63 1,0 1,6 2,53 3,896,67 10 15,56m3/h 1,27 2,27 3,6 5,8 9,1 14 24 36 56 NOTE These flow rates correspond to a velocity of approximately 2 m/s.
4.8 Manual mode The dosing system shall have an indication when a manual mode is activated, for example, for maintenance. 5 Performance requirements 5.1 Chemicals The documentation shall define which chemicals are compatible with the dosing system and at which maximum concentration. All the dosed chemicals shall conform to the relevant European Standards. 5.2 Dosing system components 5.2.1 Storage tank or chemical container Materials selected for the manufacture of the dosing tank shall protect the contents against contamination or degradation by corrosion, light, dust, particles or any external pollutant. The design of the connection between the dosing tank and the dosing pump shall exclude any
accidental contamination of the contents during either normal operation or chemical replacement; leakage of the chemical to the external environment of the system. The normal working capacity of the chemical storage tank or container shall not exceed three months based on the minimum dosing rate for the designated chemical. 5.2.2 Suction device The suction device shall have a backflow preventer. 5.2.3 Low level detection The low level detection shall as a minimum stop the pump when the storage is empty. 5.2.4 Dosing pump The manufacturer shall specify the dosing pump operating characteristics (maximum volume per stroke at maximum and medium specified operating pressure), all of which shall be tested separately. Measurements shall be carried out in accordance with to 6.2. Parameters are given in Table 2. SIST EN 15848:2012
EN 15848:2010 (E) 7 Table 2 — Test parameters Stroke length of dosing pump (%) 30 60 100 Operating pressure (MPa) Maximum specified operating pressure Medium specified operating pressure
5.2.5 Overpressure valve Overpressure valves are meant to avoid damage of the connection between the pump and the injecting point, if applicable. 5.2.6 Injection d
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