EN 60953-2:1995

FOREWORD
PREFACE
INTRODUCTION
1 Scope and object
  1.1 Scope
  1.2 Object
  1.3 Matters to be considered in the contract
2 Units, symbols, terms and definitions
  2.1 General
  2.2 Symbols, units
  2.3 Subscripts, superscripts and definitions
  2.4 Definition of guarantee values and test results
3 Guiding principles
  3.1 Advance planning for test
  3.2 Preparatory agreements and arrangements for tests
  3.3 Planning of the test
  3.4 Preparation of the tests
  3.5 Comparison measurements
  3.6 Settings for tests
  3.7 Preliminary tests
  3.8 Acceptance tests
  3.9 Repetition of acceptance tests
4 Measuring techniques and measuring instruments
  4.1 General
  4.2 Measurement of power
  4.3 Flow measurement
  4.4 Pressure measurement (excluding condensing turbine
      exhaust pressure)
  4.5 Condensing turbine exhaust pressure measurement
  4.6 Temperature measurement
  4.7 Steam quality measurement
  4.8 Time measurement
  4.9 Speed measurement
5 Evaluation of tests
  5.1 Preparation of evaluation
  5.2 Computation of results
6 Correction of test results and comparison with guarantee
  6.1 Guarantee values and guarantee conditions
  6.2 Correction of initial steam flow capacity
  6.3 Correction of maximum output
  6.4 Correction of thermal and thermodynamic efficiency
  6.5 Definition and application of correction values
  6.6 Correction methods
  6.7 Variables to be considered in the correction
  6.8 Guarantee comparison
  6.9 Deterioration of turbine performance (ageing)
7 Measuring uncertainty
  7.1 General
  7.2 Determination of measuring uncertainty of steam
      and water properties
  7.3 Calculation of measuring uncertainty of output
  7.4 Determination of measuring uncertainty of mass flow
  7.5 Calculation of measuring uncertainty of results
APPENDIX A - Feedwater heater leakage and condenser leakage
             tests
APPENDIX B - Throat tap nozzle
APPENDIX C - Evaluation of multiple measurements, compatibility
APPENDIX D - Mass flow balances
APPENDIX E - Typical generalized correction curves for
             correction of test results according to guarantee
             conditions
APPENDIX F - Short statistical definition of measuring and
             uncertainty error propagation in acceptance tests
APPENDIX G - Calculation of measuring uncertainty of output -
             Electrical measurement
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications

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.