Standards Development

Scope

1.1.1 This International Standard covers the arrangements for tests at the site to determine the extent to which the main contract guarantees (see 4.2) have been fulfilled. It contains the rules governing their conduct and prescribes measures to be taken if any phase of the tests is disputed. It deals with methods of computation of the results as well as the extent, content and style of the final report.

1.1.2 Model tests, when used for acceptance purposes, should be performed according to IEC 60193 and IEC 63461.

1.1.3 Tests of speed governing systems should be performed according to IEC 60308.

The purpose of this standard for field acceptance tests of hydraulic turbines, storage pumps or pump-turbines, also called the machine, is:

– to define the terms and quantities which are used;

– to specify methods of testing and ways of measuring the quantities involved in order to ascertain the hydraulic performance of the machine;

– to determine if the contract guarantees which fall within the scope of this standard have been fulfilled.

The decision to perform field acceptance tests including the definition of their scope is the subject of an agreement between the purchaser and the supplier of the machine. For this, it has to be examined in each case, whether the measuring conditions recommended in this standard can be realized. The influence on the measuring uncertainties, due to hydraulic and civil conditions, has to be taken into account.

If the actual conditions for field acceptance tests do not allow compliance with the guarantees to be proved, it is recommended that acceptance tests be performed on models (see 1.1.2).

In general, this standard applies to any size and type of impulse or reaction turbine, storage pump or pump-turbine. In particular, it applies to machines coupled to electric generators, motors or motor-generators.

For the purpose of this standard the term turbine includes a pump-turbine functioning as a turbine and the term pump includes a pump-turbine functioning as a pump. The term generator includes a motor-generator functioning as a generator and the term motor includes a motor-generator functioning as a motor.

1.5.1 This standard excludes all matters of a purely commercial interest except those inextricably bound up with the conduct of the tests.

1.5.2 This standard is concerned neither with the structural details of the machines nor with the mechanical properties of their components.