ASME PTC 6.2:2004 pdf free download

ASME PTC 6.2:2004 pdf free download.Steam Turbines in Combined Cycles.
3-1.3.5 Design, Construction, and Start-up Considerations. Consideration should he given to the requirements of instrumentation accuracy, calibration, recalibration, documentation requirements, and location of permanent plant instrumentation to be used for testing. Section 4 provides more detail describing required test instrumentation. Adequate provisions for installation of temporary instrumentation where plant instrumentation is not adequate to meet the requirements of this Code must also be considered during the design stages. For example, provision should be made for test thermowells at required locations.
Provisions are necessary to maintain the test values within the appropriate permissible deviations from design values in Table 3-1.3.5. Table 3-1.3.5 includes items to consider during the specific plant design, construction, and start-up. The table inclLdes items mostly within the control of the purchaser, such as flow and temperatures, as well as items that are mostly within the control of the manufacturer, such as flow capacity and turbine efficiency. It is recommended that pretest agreements clarify how the corrections and test results are to be interpreted should any of the allowable deviations be exceeded. The Code User should recognize that the allowable deviations shown in Table 3-1.3.5 have been determined to limit the uncertainty of the test corrections to less than 0.1%. These allowable deviations do not imply design specifications, Design specifications should be considered independently and may be either broader or stricter than the limitations stated in the Code.
3-1.3.5 Design, Construction, and Start-up Considerations. Consideration should he given to the requirements of instrumentation accuracy, calibration, recalibration, documentation requirements, and location of permanent plant instrumentation to be used for testing. Section 4 provides more detail describing required test instrumentation. Adequate provisions for installation of temporary instrumentation where plant instrumentation is not adequate to meet the requirements of this Code must also be considered during the design stages. For example, provision should be made for test thermowells at required locations.
Provisions are necessary to maintain the test values within the appropriate permissible deviations from design values in Table 3-1.3.5. Table 3-1.3.5 includes items to consider during the specific plant design, construction, and start-up. The table inclLdes items mostly within the control of the purchaser, such as flow and temperatures, as well as items that are mostly within the control of the manufacturer, such as flow capacity and turbine efficiency. It is recommended that pretest agreements clarify how the corrections and test results are to be interpreted should any of the allowable deviations be exceeded. The Code User should recognize that the allowable deviations shown in Table 3-1.3.5 have been determined to limit the uncertainty of the test corrections to less than 0.1%. These allowable deviations do not imply design specifications, Design specifications should be considered independently and may be either broader or stricter than the limitations stated in the Code.