CEI EN 62364 : 2014

FOREWORD
INTRODUCTION
1 Scope
2 Terms, definitions and symbols
3 Abrasion rate
4 Design
5 Abrasion resistant materials
6 Guidelines on insertions into specifications
Annex A (informative) - PL calculation example
Annex B (informative) - Measuring and recording
        abrasion damages
Annex C (informative) - Water sampling procedure
Annex D (informative) - Procedures for analysis of particle
        concentration, size, hardness and shape
Annex E (informative) - Tests of abrasion resistant materials
Annex F (informative) - Typical criteria to determine overhaul
        time due to abrasion erosion
Annex G (informative) - Example to calculate the amount
        of erosion in the full model
Annex H (informative) - Examples to calculate the
        TBO in the reference model
Bibliography

Provides to: a) present data on particle abrasion rates on several combinations of water quality, operating conditions, component materials, and component properties collected from a variety of hydro sites; b) develop guidelines for the methods of minimizing particle abrasion by modifications to hydraulic design for clean water. These guidelines do not include details such as hydraulic profile shapes which should be determined by the hydraulic design experts for a given site; c) develop guidelines based on 'experience data' concerning the relative resistance of materials faced with particle abrasion problems; d) develop guidelines concerning the maintainability of abrasion resistant materials and hard facing coatings; e) develop guidelines on a recommended approach, which owners could and should take to ensure that specifications communicate the need for particular attention to this aspect of hydraulic design at their sites without establishing criteria which cannot be satisfied because the means are beyond the control of the manufacturers; f) develop guidelines concerning operation mode of the hydro turbines in water with particle materials to increase the operation life.