ML19206A044: Difference between revisions
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{{#Wiki_filter:Changes to IMC 0609 Appendix A | {{#Wiki_filter:1 Changes to IMC 0609 Appendix A | ||
* Revisions based on ROP Feedback Forms. | * Revisions based on ROP Feedback Forms. | ||
* Added background discussion about support system initiators. | * Added background discussion about support system initiators. | ||
| Line 21: | Line 21: | ||
* Added background discussion about exposure time. | * Added background discussion about exposure time. | ||
* Added background discussion about PRA function, especially as it compares to operability. Separated and clarified the screening questions. | * Added background discussion about PRA function, especially as it compares to operability. Separated and clarified the screening questions. | ||
Changes to IMC 0609 Appendix A | 2 Changes to IMC 0609 Appendix A | ||
* Incorporated questions regarding FLEX equipment from IMC 0609 Appendix O. Added background discussion and 3 screening questions. | * Incorporated questions regarding FLEX equipment from IMC 0609 Appendix O. Added background discussion and 3 screening questions. | ||
* Moved reactivity control questions from the reactivity control cornerstone exhibit to the barrier integrity cornerstone exhibit as fuel cladding integrity questions. | * Moved reactivity control questions from the reactivity control cornerstone exhibit to the barrier integrity cornerstone exhibit as fuel cladding integrity questions. | ||
* Added a new cladding integrity screening question about foreign material exclusion and reactor coolant chemistry control. | * Added a new cladding integrity screening question about foreign material exclusion and reactor coolant chemistry control. | ||
Impact | 3 Impact | ||
* IMC 0609 Appendix A is better aligned with Attachment 4 and IMC 0612 Appendix B. | * IMC 0609 Appendix A is better aligned with Attachment 4 and IMC 0612 Appendix B. | ||
* IMC 0609 Appendix O can be sunset. | * IMC 0609 Appendix O can be sunset. | ||
* Enhanced clarity. | * Enhanced clarity. | ||
Changes to IMC 0609 Attachment 4 | 4 Changes to IMC 0609 Attachment 4 | ||
* In general, revisions were in response to existing ROP Feedback Forms and to align with formatting guidance in IMC 0040 | * In general, revisions were in response to existing ROP Feedback Forms and to align with formatting guidance in IMC 0040 | ||
* Table 2 was modified to include support system initiators and move reactivity management issues to the barrier integrity cornerstone (align with Appendix A and IMC 0612 Appendix B) | * Table 2 was modified to include support system initiators and move reactivity management issues to the barrier integrity cornerstone (align with Appendix A and IMC 0612 Appendix B) | ||
* Kickout to IMC 0609 Appendix O removed in Table 3 | * Kickout to IMC 0609 Appendix O removed in Table 3 | ||
* Clarification question added in Table 3 to direct users to Appendix A for spent fuel pool issues during shutdown (avoid erroneously going to Appendix G) | * Clarification question added in Table 3 to direct users to Appendix A for spent fuel pool issues during shutdown (avoid erroneously going to Appendix G) | ||
* Minor changes made to allow for use with new reactor designs | * Minor changes made to allow for use with new reactor designs}} | ||
Latest revision as of 00:56, 5 January 2025
| ML19206A044 | |
| Person / Time | |
|---|---|
| Issue date: | 07/25/2019 |
| From: | David Aird NRC/NRR/DIRS/IRAB |
| To: | |
| Aird D, NRR/DIRS, 301-287-0725 | |
| References | |
| Download: ML19206A044 (4) | |
Text
1 Changes to IMC 0609 Appendix A
- Revisions based on ROP Feedback Forms.
- Added background discussion about support system initiators.
Separated and clarified the screening questions.
- Added background discussion about exposure time.
- Added background discussion about PRA function, especially as it compares to operability. Separated and clarified the screening questions.
2 Changes to IMC 0609 Appendix A
- Incorporated questions regarding FLEX equipment from IMC 0609 Appendix O. Added background discussion and 3 screening questions.
- Moved reactivity control questions from the reactivity control cornerstone exhibit to the barrier integrity cornerstone exhibit as fuel cladding integrity questions.
- Added a new cladding integrity screening question about foreign material exclusion and reactor coolant chemistry control.
3 Impact
- IMC 0609 Appendix A is better aligned with Attachment 4 and IMC 0612 Appendix B.
- IMC 0609 Appendix O can be sunset.
- Enhanced clarity.
4 Changes to IMC 0609 Attachment 4
- In general, revisions were in response to existing ROP Feedback Forms and to align with formatting guidance in IMC 0040
- Table 2 was modified to include support system initiators and move reactivity management issues to the barrier integrity cornerstone (align with Appendix A and IMC 0612 Appendix B)
- Kickout to IMC 0609 Appendix O removed in Table 3
- Clarification question added in Table 3 to direct users to Appendix A for spent fuel pool issues during shutdown (avoid erroneously going to Appendix G)
- Minor changes made to allow for use with new reactor designs