IEC 60953-0:2022
Collections
International IEC standards
Publication date
May 2022
Number of pages
209 p.
Reference
IEC 60953-0:2022
IEC 60953-0:2022
May 2022
International standard
Current
Rules for steam turbine thermal acceptance tests - Part 0: Wide range of accuracy for various types and sizes of turbines
IEC 60953-0:2022 constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition:a) IEC 60953-2:1990 has been used as the basis to develop IEC 60953-0;b) Outdated measuring techniques have been updated and the corresponding reduction of the expected test result measuring uncertainty indicated;c) Guarantee of power output at specified steam flow has been included;d) A proposal for assignment of unaccounted for leakages has been included;e) Correction methods and guarantee comparisons are updated;f) Various appendices deleted:- Appendix B (flow nozzle)- Appendix E (generalized correction curves)- Appendix G (power measurement uncertainty)g) Annex added:- Annex E (Temperature variation method) taken over from IEC 60953-3:2002,Annex LThe rules given in this document are applicable to thermal acceptance tests covering a wide range of accuracy on steam turbines of every type, rating and application. Only the relevant portion of these rules will apply to any individual case.The rules provide for the testing of turbines, whether operating with either superheated or saturated steam. They include measurements and procedures required to determine specific enthalpy within the moisture region and describe precautions necessary to permit testing while respecting radiological safety rules in nuclear plants.Uniform rules for the preparation, carrying out, evaluation, comparison with guarantee and calculation of measuring uncertainty of acceptance tests are defined in this standard. Details of the conditions under which the acceptance test can take place are included.Should any complex or special case arise which is not covered by these rules, appropriate agreement is to be reached by manufacturer and purchaser before the contract is signed.This first edition cancels and replaces IEC 60953-2, published in 1990.
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Sumary
Rules for steam turbine thermal acceptance tests - Part 0: Wide range of accuracy for various types and sizes of turbines
IEC 60953-0:2022 constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition:
a) IEC 60953-2:1990 has been used as the basis to develop IEC 60953-0;
b) Outdated measuring techniques have been updated and the corresponding reduction of the expected test result measuring uncertainty indicated;
c) Guarantee of power output at specified steam flow has been included;
d) A proposal for assignment of unaccounted for leakages has been included;
e) Correction methods and guarantee comparisons are updated;
f) Various appendices deleted:
- Appendix B (flow nozzle)
- Appendix E (generalized correction curves)
- Appendix G (power measurement uncertainty)
g) Annex added:
- Annex E (Temperature variation method) taken over from IEC 60953-3:2002,Annex L
The rules given in this document are applicable to thermal acceptance tests covering a wide range of accuracy on steam turbines of every type, rating and application. Only the relevant portion of these rules will apply to any individual case.
The rules provide for the testing of turbines, whether operating with either superheated or saturated steam. They include measurements and procedures required to determine specific enthalpy within the moisture region and describe precautions necessary to permit testing while respecting radiological safety rules in nuclear plants.
Uniform rules for the preparation, carrying out, evaluation, comparison with guarantee and calculation of measuring uncertainty of acceptance tests are defined in this standard. Details of the conditions under which the acceptance test can take place are included.
Should any complex or special case arise which is not covered by these rules, appropriate agreement is to be reached by manufacturer and purchaser before the contract is signed.
This first edition cancels and replaces IEC 60953-2, published in 1990.
IEC 60953-0:2022 constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition:
a) IEC 60953-2:1990 has been used as the basis to develop IEC 60953-0;
b) Outdated measuring techniques have been updated and the corresponding reduction of the expected test result measuring uncertainty indicated;
c) Guarantee of power output at specified steam flow has been included;
d) A proposal for assignment of unaccounted for leakages has been included;
e) Correction methods and guarantee comparisons are updated;
f) Various appendices deleted:
- Appendix B (flow nozzle)
- Appendix E (generalized correction curves)
- Appendix G (power measurement uncertainty)
g) Annex added:
- Annex E (Temperature variation method) taken over from IEC 60953-3:2002,Annex L
The rules given in this document are applicable to thermal acceptance tests covering a wide range of accuracy on steam turbines of every type, rating and application. Only the relevant portion of these rules will apply to any individual case.
The rules provide for the testing of turbines, whether operating with either superheated or saturated steam. They include measurements and procedures required to determine specific enthalpy within the moisture region and describe precautions necessary to permit testing while respecting radiological safety rules in nuclear plants.
Uniform rules for the preparation, carrying out, evaluation, comparison with guarantee and calculation of measuring uncertainty of acceptance tests are defined in this standard. Details of the conditions under which the acceptance test can take place are included.
Should any complex or special case arise which is not covered by these rules, appropriate agreement is to be reached by manufacturer and purchaser before the contract is signed.
This first edition cancels and replaces IEC 60953-2, published in 1990.
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Replaced standards
(1)
IEC 60953-2:1990
December 1990
International standard
Cancelled
Rules for steam turbine thermal acceptance tests. Part 2: Method B - Wide range of accuracy for various types and sizes of turbines
Provides for acceptance tests of steam turbines of various types and capacities with appropriate measuring uncertainty. Only the relevant portion of these rules will apply to any individual case. The resulting measuring uncertainty of the test result is determined by calculating methods presented in this standard.
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