This document applies to laboratory models of any type of impulse or reaction hydraulic turbine, 
storage pump or pump-turbine. 
This document applies to models of prototype machines either with unit power greater than 
5 MW or with reference diameter greater than 3 m. Full application of the procedures herein 
prescribed is not generally justified for machines with smaller power and size. Nevertheless, 
this document may be used for such machines by agreement between the purchaser and the 
supplier. 
In this document, the term "turbine" includes a pump-turbine operating as a turbine and the 
term "pump" includes a pump-turbine operating as a pump. 
This document excludes all matters of purely commercial interest, except those inextricably 
bound up with the conduct of the tests. 
This document is concerned with neither the structural details of the machines nor the 
mechanical properties of their components, so long as these do not affect model performance 
or the relationship between model and prototype performances. 
This document covers the arrangements for model acceptance tests to be performed on 
hydraulic turbines, storage pumps and pump-turbines to determine if the main hydraulic 
performance contract guarantees (see 4.2) have been satisfied. 
It contains the rules governing test conduct and prescribes measures to be taken if any phase 
of the tests is disputed. 
The main objectives of this document are: 
– to define the terms and quantities used; 
– to specify methods of testing and of measuring the quantities involved, in order to ascertain 
the hydraulic performance of the model; 
– to specify the methods of computation of results and of comparison with guarantees; 
– to determine if the contract guarantees that fall within the scope of this document have been 
fulfilled; 
– to define the extent, content and structure of the final report. 
The guarantees can be given in one of the following ways: 
– guarantees for prototype hydraulic performance, computed from model test results 
considering scale effects; 
– guarantees for model hydraulic performance.dition 3.0 2019-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Hydraulic turbines, storage pumps and pump-turbines – Model acceptance tests Turbines hydrauliques, pompes d'accumulation et pompes-turbines – Essais de réception sur modèle IEC 60193:2019-04(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright ？ 2019 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no p