EN 60609-1:2005

SLOVENSKI STANDARD
01-september-2005
9RGQHWXUELQHDNXPXODFLMVNHþUSDONHLQþUSDOQHWXUELQH±2YUHGQRWHQMH
NDYLWDFLMVNLKUD]MHG±GHO2YUHGQRWHQMH]DUHDNFLMVNHWXUELQHDNXPXODFLMVNH
þUSDONHLQþUSDOQHWXUELQH,(&
Hydraulic turbines, storage pumps and pump-turbines - Cavitation pitting evaluation --
Part 1: Evaluation in reaction turbines, storage pumps and pump-turbines
Wasserturbinen, Speicherpumpen, Pumpenturbinen - Bewertung des Kavitationsangriffs
-- Teil 1: Bewertung in Reaktionsturbinen, Speicherpumpen und Pumpenturbinen
Turbines hydrauliques, pompes d'accumulation et pompes-turbines - Evaluation de
l'érosion de cavitation -- Partie 1: Evaluation dans les turbines à réaction, les pompes
d'accumulation et les pompes-turbines hydrauliques
Ta slovenski standard je istoveten z: EN 60609-1:2005
ICS:
27.140 Vodna energija Hydraulic energy engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60609-1
NORME EUROPÉENNE
EUROPÄISCHE NORM January 2005

ICS 23.100.10
English version
Hydraulic turbines, storage pumps and pump-turbines –
Cavitation pitting evaluation
Part 1: Evaluation in reaction turbines,
storage pumps and pump-turbines
(IEC 60609-1:2004)
Turbines hydrauliques, pompes Wasserturbinen, Speicherpumpen,
d'accumulation et pompes-turbines – Pumpenturbinen –
Evaluation de l'érosion de cavitation Bewertung des Kavitationsangriffs
Partie 1: Evaluation dans les turbines Teil 1: Bewertung in Reaktionsturbinen,
à réaction, les pompes d'accumulation Speicherpumpen und Pumpenturbinen
et les pompes-turbines hydrauliques (IEC 60609-1:2004)
(CEI 60609-1:2004)
This European Standard was approved by CENELEC on 2004-12-01. CENELEC 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 Central Secretariat or to any CENELEC 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 CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of 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, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60609-1:2005 E
Foreword
The text of document 4/196/FDIS, future edition 1 of IEC 60609-1, prepared by IEC TC 4, Hydraulic
turbines, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60609-1 on 2004-12-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2005-09-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-12-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60609-1:2004 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 60609-1:2005
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1) 2)
IEC 60193 - Hydraulic turbines, storage pumps and EN 60193 1999
pump-turbines - Model acceptance tests

1)
IEC/TR 61366-1 - Hydraulic turbines, storage pumps and - -
pump-turbines - Tendering documents
Part 1: General and annexes
1)
Undated reference.
2)
Valid edition at date of issue.

NORME CEI
INTERNATIONALE IEC
60609-1
INTERNATIONAL
Première édition
STANDARD
First edition
2004-11
Turbines hydrauliques, pompes d'accumulation
et pompes-turbines –
Evaluation de l'érosion de cavitation –
Partie 1:
Evaluation dans les turbines à réaction,
les pompes d'accumulation et les
pompes-turbines hydrauliques
Hydraulic turbines, storage pumps
and pump-turbines –
Cavitation pitting evaluation –
Part 1:
Evaluation in reaction turbines,
storage pumps and pump-turbines
© IEC 2004 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
PRICE CODE S
Commission Electrotechnique Internationale
International Electrotechnical Commission
ɆɟɠɞɭɧɚɪɨɞɧɚɹɗɥɟɤɬɪɨɬɟɯɧɢɱɟɫɤɚɹɄɨɦɢɫɫɢɹ
Pour prix, voir catalogue en vigueur
For price, see current catalogue

60609-1 © IEC:2004 – 3 –
CONTENTS
FOREWORD.5
INTRODUCTION.9
1 Scope and object.13
1.1 Excluded topics and limitations.13
1.2 Considerations concerning chemical composition of water.13
1.3 Considerations concerning water containing solids .15
1.4 Normative references .15
2 Terms, definitions and symbols.15
2.1 Units .15
2.2 List of terms .17
3 Nature and extent of cavitation-pitting guarantees .25
3.1 Period of guarantee.25
3.2 Definition of the amount of cavitation pitting .25
3.3 Operating ranges and duration of operation.25
4 Procedures .29
4.1 Repair of cavitation pitting during the guarantee period .29
4.2 Measurement and calculation of the amount of cavitation pitting.31
5 Computation of results and fulfilment of the guarantee .33
Annex A (normative) Examples of amounts of cavitation pitting.35
Bibliography.41
Figure 1 – Amount of cavitation pitting as a function of σ for a given machine at constant
discharge.11
Figure 2 – Operating ranges for turbines and pump-turbines during turbine operation.21
Figure 3 – Operating ranges for storage pumps and pump-turbines during pump
operation .23
Figure A.1 – Examples of maximum permissible values of cavitation pitting depth for
runners/impellers .37
Figure A.2 – Examples of maximum permissible values of cavitation pitting volume for
runners/impellers .39

60609-1 © IEC:2004 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HYDRAULIC TURBINES, STORAGE PUMPS AND PUMP-TURBINES –
CAVITATION PITTING EVALUATION –
Part 1: Evaluation in reaction turbines, storage pumps
and pump-turbines
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in
addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60609-1 has been prepared by IEC technical committee 4: Hydraulic
turbines.
This standard cancels and replaces IEC 60609, published in 1978, and constitutes a technical
revision. The main changes with respect to IEC 60609 pertain to tighter controls on reduced
permissible values of material loss. Modern technology with accumulated R&D has permitted
the integration of improved hydraulic design, better controls from numerical machining and
improved choice of materials.
The text of this standard is based on the following documents:
FDIS Report on voting
4/196/FDIS 4/200/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

60609-1 © IEC:2004 – 7 –
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 60609 consists of the following parts, under the general title Cavitation pitting evaluation in
hydraulic turbines, storage pumps and pump-turbines:
Part 1: Evaluation in reaction turbines, storage pumps and pump-turbines
Part 2: Evaluation in Pelton turbines
The committee has decided that the contents of t
...