effects within the uncertainty of the determined DBE values. 3.28 Please ensure that the text will be consistent with modified 3.27. 3.33 All SSCs "All" instead of "The whole sets" as part of the design process Instead of "at the … … beginning of the seismic design process". The formulation in the current guide is more appropriate, considering possible refinement of the categorization and interaction with the general design process. The text " .. to assign them specific Seismic categorization is levels of about identifying the vibratory ground motion… " should be reformulated. items for which seismically induced vibrations shall be taken into consideration in the design, not about assigning items specific levels of vibrations. 3.40 whose structural failure or failure Structural failure should … to perform the intended functions be mentioned in addition … to functional failure. 6.24. Seismic tests performed by a Please add. performed by competent testing organization may a competent testing
effects within the uncertainty of the determined DBE values. 3.28 Please ensure that the text will be consistent with modified 3.27. 3.33 All SSCs … as part of the design process … The text " .. to assign them specific levels of vibratory ground motion… " should be reformulated. "All" instead of "The whole sets" Instead of "at the beginning of the seismic design process". The formulation in the current guide is more appropriate, considering possible refinement of the categorization and interaction with the general design process. Seismic categorization is about identifying the items for which seismically induced vibrations shall be taken into consideration in the design, not about assigning items specific levels of vibrations. 3.40 … whose structural failure or failure to perform the intended functions … Structural failure should be mentioned in addition to functional failure. 6.24. Seismic tests performed by a competent testing organization may Please add. performed by a competent testing
Finland_Comments_DS490_Seismic_Design_of_Nuclear_Installations_STEP_7_10_2018.docx