ML25240B629
| ML25240B629 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 08/28/2025 |
| From: | Constellation Energy Generation |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML25240B627 | List: |
| References | |
| Download: ML25240B629 (1) | |
Text
Table 1-2 Table 1-2: Critical Parameters for the Application of Bounding Analysis for Calvert Cliffs Unit 2 Parameter Pilot Plant Basis Plant-Specific Basis Additional Evaluation Required?
Dominant Pressurized Thermal Shock (PTS) Transients in the NRC PTS Risk Study are Applicable NRC PTS Risk Study (Reference 7)
PTS Generalization Study (Reference 8)
No Through-Wall Cracking Frequency (TWCF) 3.16E-07 Events per year (Reference 5) 3.53E-10 Events per year (Calculated per Reference 5)
No Frequency and Severity of Design Basis Transients 13 heatup/cooldown cycles per year (Reference 5)
Bounded by 13 heatup/cooldown cycles per year No Cladding Layers (Single/Multiple)
Single Layer Reference 5 Single Layer No Table 2-2 provides a summary of the latest reactor vessel inspection for Calvert Cliffs Unit 2 and an evaluation of the recorded indications. This information confirms that satisfactory examinations have been performed on the Calvert Cliffs Unit 2 reactor vessel.