SN EN 60953-2 : 1995

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
    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 measurements
    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
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
Appendices
A Feedwater heater leakage and condenser leakage tests
B Throat tap nozzle
C Evaluation of multiple measurements, compatibility
D Mass flow balances
E Typical generalized correction curves for correction
    of tests results according to guarantee conditions
F Short statistical definition of measuring uncertainty
    and error propagation in acceptance tests
G Calculation of measuring uncertainty of output -
    Electrical measurement
ZA (normative) Normative references to international
    publications with their corresponding European
    publications

Applies to thermal acceptance tests covering a wide range of accuracy on steam turbines of every type, rating and application, including measurements and procedures necessary for determination of specific enthalpy within moisture region. Describes precautions needed to permit testing while respecting radiological safety rules in nuclear plants.