Publication CODE |
Title |
IEC 62256:2017 RLV (2017-05) |
HYDRAULIC TURBINES, STORAGE PUMPS AND PUMP-TURBINES - REHABILITATION AND PERFORMANCE IMPROVEMENT |
|
Price Excl. VAT |
Total number of pages, tables and drawings |
586.00 €
|
320. |
Description
IEC 62256:2017 RLV contains both the official IEC International Standard and its Redline version. The Redline version is not an official document, it is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 62256:2017 covers turbines, storage pumps and pump-turbines of all sizes and of the following types: Francis; Kaplan; propeller; Pelton (turbines only) and bulb turbines.
This document also identifies without detailed discussion, other powerhouse equipment that could affect or be affected by a turbine, storage pump, or pump-turbine rehabilitation. The object of this document is to assist in identifying, evaluating and executing rehabilitation and performance improvement projects for hydraulic turbines, storage pumps and pump-turbines. This document can be used by owners, consultants, and suppliers to define: needs and economics for rehabilitation and performance improvement; scope of work; specifications and evaluation of results. This document is intended to be: an aid in the decision process; an extensive source of information on rehabilitation; an identification of the key milestones in the rehabilitation process; and identification of the points to be addressed in the decision processes. This document is not intended to be a detailed engineering manual nor a maintenance document. This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: Tables 2 to 23 modified, completed and moved to Annex A; 7.3.2: subclauses moved with text changes; new subclauses on temperature, noise, galvanic corrosion, galling and replacement of components without assessment; 7.3.3: complete new subclause on residual life; Tables 29 to 32 moved to Annex C; New Annex B with assessment examples.
Key words: Turbines, Storage pump, Pump turbines, Rehabilitation, Performance.
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Class |
C990
(IEC PUBLICATIONS IEC PUBLICATIONS)
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Status |
IEC PUBLICATION |
Situation |
Currently active
|
|
BEC Approval |
2017-05-30 |
ICS-Code (International Standards Classification) |
27.140
|
NBN Status |
New |
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IEC publication date |
2017-05-30 |
IEC stability date |
2023-12-31 |
IEC file modification date |
2017-05-30 |
IEC last modification date |
2018-12-03 |
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