EN ISO 15748-2:2002

Ships and marine technology - Potable water supply on ships and marine structures - Part 2: Method of calculation (ISO 15748-2:2002)

ISO 15748-2 applies to the planning, design and configuration of potable water supply systems on ships, stationary or floating marine structures and inland waterway crafts.
It serves to determine the quantity of potable water to be carried on board, the capacity of the pressurized reservoirs and water heaters, the pumping capacity, etc.

Schiffe und Meerestechnik - Trinkwasser-Versorgungsanlagen auf Schiffen und Seebauwerken - Teil 2: Berechnung (ISO 15748-2:2002))

Diese Norm gilt für die Planung, Konstruktion und Ausführung von Trinkwasser-Versorgungsanlagen auf Seeschiffen, festgegründeten oder schwimmenden Bauwerken der Meerestechnik und auf Binnenschiffen.
Diese Norm dient zur Ermittlung des mitzuführenden Trinkwasservorrats, der Volumen von Druckbehältern, Wassererwärmern und Pumpenleistungen usw.
ANMERKUNG   Kunststoffrohre sind nach ISO 15748-1 zugelassen, werden aber zurzeit kaum eingesetzt infolge der Bestimmungen der Klassifikationsgesellschaften, die den Einsatz nur unter bestimmten Bedingungen zulassen. Die Druckverluste der Kunststoffrohre wurden in dieser Norm wegen der nur eingeschränkten Anwendung der Kunststoffrohre noch nicht angegeben.

Navires et technologie maritime - Approvisionnement en eau potable sur navires et structures maritimes - Partie 2: Méthode de calcul (ISO 15748-2:2002)

Ladje in pomorska tehnologija – Oskrba s pitno vodo na ladjah in ostalih strukturah na morju – 2. del: Metoda izračuna (ISO 15748-2:2002)

General Information

• Status: Published
• Publication Date: 30-Apr-2002
• Withdrawal Date: 29-Nov-2002
• ICS: 47.020.30 - Piping systems
• Technical Committee: CEN/TC 300 - Sea-going vessels and marine technology
• Drafting Committee: CEN/TC 300 - Sea-going vessels and marine technology
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 01-May-2002
• Completion Date: 01-May-2002
• Ref Project: SIST EN ISO 15748-2:2004 - Ships and marine technology - Potable water supply on ships and marine structures - Part 2: Method of calculation (ISO 15748-2:2002)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RVWDOLKSchiffe und Meerestechnik - Trinkwasser-Versorgungsanlagen auf Schiffen und Seebauwerken - Teil 2: Berechnung (ISO 15748-2:2002))Navires et technologie maritime - Approvisionnement en eau potable sur navires et structures maritimes - Partie 2: Méthode de calcul (ISO 15748-2:2002)Ships and marine technology - Potable water supply on ships and marine structures - Part 2: Method of calculation (ISO 15748-2:2002)47.020.30Sistemi ceviPiping systemsICS:Ta slovenski standard je istoveten z:EN ISO 15748-2:2002SIST EN ISO 15748-2:2004en01-september-2004SIST EN ISO 15748-2:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 15748-2May 2002ICS 47.020.30English versionShips and marine technology - Potable water supply on shipsand marine structures - Part 2: Method of calculation (ISO15748-2:2002)Navires et technologie maritime - Approvisionnement eneau potable sur navires et structures maritimes - Partie 2:Méthode de calcul (ISO 15748-2:2002)Schiffe und Meerestechnik - Trinkwasser-Versorgungsanlagen auf Schiffen und Seebauwerken - Teil2: Berechnung (ISO 15748-2:2002)This European Standard was approved by CEN on 2 April 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 15748-2:2002 ESIST EN ISO 15748-2:2004

2002-06-19ForewordThis document (EN ISO 15748-2:2002) has been prepared by Technical Committee ISO/TC 8"Ships and marine technology" in collaboration with Technical Committee CEN/TC 300 "Sea-going vessels and marine technology", the secretariat of which is held by DIN.This European Standard shall be given the status of a national standard, either by publicationof an identical text or by endorsement, at the latest by November 2002, and conflictingnational standards shall be withdrawn at the latest by November 2002.According to the CEN/CENELEC Internal Regulations, the national standards organizations ofthe following countries are bound to implement this European Standard: Austria, Belgium,Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and theUnited Kingdom.Endorsement noticeThe text of the International Standard ISO 15748-2:2002 has been approved by CEN as aEuropean Standard without any modifications.NOTE
Normative references to International Standards are listed in annex ZA (normative).SIST EN ISO 15748-2:2004

Reference numberISO 15748-2:2002(E)© ISO 2002
INTERNATIONAL STANDARD ISO15748-2First edition2002-05-01Ships and marine technology — Potable water supply on ships and marine structures — Part 2: Method of calculation Navires et technologie maritime — Approvisionnement en eau potable sur navires et structures maritimes — Partie 2: Méthode de calcul
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ISO 2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 • CH-1211 Geneva 20 Tel.
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ii © ISO 2002 – All rights reserved
ISO 15748-2:2002(E) © ISO 2002 – All rights reserved iii Contents Page Foreword.iv 1 Scope.1 2 Normative references.1 3 Potable water consumption.2 4 Potable water storage.2 5 Determination and sizing of system components.2 6 Flow rates.3 7 Supply pressure.3 8 Generation and maintenance of pressure.3 9 Pipe diameters of distribution lines.4 10 Hot water requirements.5 11 Water heaters.5 12 Circulation lines and circulating pumps.6 13 Calculation example.6 Annex A (informative)
Tables and figures with useful information.7 Annex B (informative)
Form sheets for calculation.18 Annex C (informative)
Calculation example.22 Annex D (informative)
Information concerning the installation of sanitary facilities.38
ISO 15748-2:2002(E) iv © ISO 2002 – All rights reserved
Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 15748 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15748-2 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 3, Piping and machinery. ISO 15748 consists of the following parts, under the general title Ships and marine technology — Potable water supply on ships and marine structures: — Part 1: Planning and design — Part 2: Method of calculation Annexes A, B, C and D of this part of ISO 15748 are for information only.
INTERNATIONAL STANDARD ISO 15748-2:2002(E) © ISO 2002 – All rights reserved 1 Ships and marine technology — Potable water supply on ships and marine structures — Part 2: Method of calculation 1 Scope This part of ISO 15748 applies to the planning, design and configuration of potable water supply systems on ships, stationary or floating marine structures and inland waterway crafts. This part of ISO 15748 serves to determine the quantity of potable water to be carried on board, the capacity of the pressurized reservoirs and water heaters, the pumping capacity, etc. NOTE In accordance with ISO 15748-1 plastic pipes are permitted but are rarely used at present due to the restrictive conditions laid down by the classification societies. Pressure losses in plastic pipes have not yet been included in ISO 15748 owing to their limited applicability. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 15748. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 15748 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 65, Carbon steel tubes suitable for screwing in accordance with ISO 7-1 ISO 161-1, Thermoplastics pipes for the conveyance of fluids — Nominal outside diameters and nominal
pressures — Part 1: Metric series ISO 274, Copper tubes of circular section — Dimensions ISO 1127, Stainless steel tubes — Dimensions, tolerances and conventional masses per unit length ISO 4200, Plain end steel tubes, welded and seamless — General tables of dimensions and masses per unit length ISO 5620-1, Shipbuilding and marine structures — Filling connection for drinking water tanks — Part 1: General requirements ISO 15748-1, Ships and marine technology — Potable water supply on ships and marine structures — Part 1: Planning and design SIST EN ISO 15748-2:2004

ISO 15748-2:2002(E) 2 © ISO 2002 – All rights reserved
3 Potable water consumption 3.1 General The consumption of potable water depends on the type of ship, underway time (time the crew and passengers are embarked), number of potable water dispensing and supply points and the cruising area. Rough calculations of the daily potable water requirements should be based on the guide values in Table A.1. Determination of potable water consumption with respect to the planned/existing dispensing points should be based on the guide values in Table A.2 for cargo ships and in Table A.3 for passenger ships. 3.2 Potable water requirements of technical equipment The quantity of potable water required by other technical facilities including air conditioning equipment/plants for air humidification is to be taken from the information supplied by the manufacturer of the respective facility and added to the potable water consumption determined in accordance with 3.1. 3.3 Potable water consumption of commissary equipment The following guide values for water consumption have been determined; detailed values shall be supplied by the manufacturer. The determined quantity shall be added to the values determined in accordance with 3.1. =garbage grinders for food disposal = 20 l/min =dishwashing machines
= 3 l/rack up to 8 l/rack =coffee and tea machines
= 18 l/h to 120 l/h =vegetable peeling and cle
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