IEC 60609-1 : 1.0

FOREWORD
INTRODUCTION
1 Scope and object
  1.1 Excluded topics and limitations
  1.2 Considerations concerning chemical composition of water
  1.3 Considerations concerning water containing solids
  1.4 Normative references
2 Terms, definitions and symbols
  2.1 Units
  2.2 List of terms
3 Nature and extent of cavitation-pitting guarantees
  3.1 Period of guarantee
  3.2 Definition of the amount of cavitation pitting
  3.3 Operating ranges and duration of operation
4 Procedures
  4.1 Repair of cavitation pitting during the guarantee period
  4.2 Measurement and calculation of the amount of cavitation
      pitting
5 Computation of results and fulfilment of the guarantee
Annex A (normative) Examples of amounts of cavitation pitting
Bibliography

Provides basis for the formulation of guarantees applied to cavitation pitting for reaction hydraulic turbines, storage pumps and pump-turbines. It addresses the measurement and evaluation of the amount of cavitation pitting on certain specified machine components for given conditions, which are defined in the contract by output, specific hydraulic energy (E), speed, material, operation, etc.