Publication details
| Publication CODE |
Title |
| NBN EN 62256:2017 (2017-09) |
HYDRAULIC TURBINES, STORAGE PUMPS AND PUMP-TURBINES - REHABILITATION AND PERFORMANCE IMPROVEMENT |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
25.00 €
|
3. |
Description
NEW!IEC 62256:2017 is available as IEC 62256:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the 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.
|
| Class |
C
|
Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
Very important notice: 98% of the text of the NBN EN 55XXX,
NBN EN 6XXXX comes from the IEC text which is NOT included.
This text can be ordered here:
IEC 62256:2017.
For the series NBN EN 50XXX, the standards are however complete.
|
DE version
|
EN version
|
FR version
|
|
Status
| Status |
Registered trilingual Belgian standard EN or FR or DE |
| Situation |
Currently active
Replaces
NBN EN 62256:2009
|
|
Origin
| Committee |
TC 4
HYDRAULIC TURBINES
|
| Responsible |
Ir DELENS Marc
|
Approval
| BEC Approval |
2017-07-04 |
| NBN Approval |
2017-10-25 |
| Registration |
177160 |
| ICS-Code (International Standards Classification) |
27.140
|
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2017-07-04 |
| Date of availability (d.a.v.) |
2017-09-01 |
| Date of announcement (d.o.a.) |
2017-10-04 |
| Date of publication (d.o.p.) |
2018-04-04 |
| Date of withdrawal former edition (d.o.w.) |
2020-07-04 |
|
Correspondences with international standards
| Relation |
International standard |
Date |
| is identical to |
EN 62256:2017
|
2017-09-01 |
| is identical to |
IEC 62256:2017
|
2017-05-30 |
|
