Text

Redacted Updated Safety Analysis Report (WCGS Usar), Revision 37, Calculation XX-E-013, Rev. 4-CN010, Post-Fire Safe Shutdown (PFSSD) Analysis
	ML24114A181
Person / Time
Site:	Wolf Creek
Issue date:	04/15/2024
From:	; Wolf Creek
To:	; Office of Nuclear Reactor Regulation
References
	000347
	Download: ML24114A181 (1)
	v • d • e

FORM APF-05D-001-02, REV. 12 Page 1 CALCULATION CHANGE NOTICE CCN NO. XX-E-013 - 004 - CN010

Base Calc No. Rev No. Sequence No.

CALCULATION TITLE - From CALCULATION TITLE field in EIS:

Post-Fire Safe Shutdown (PFSSD)Analysis COMPUTER CODE: N/A VERSION: N/A Administrative? YES NO ASSOCIATED ENGINEERING CHANGE #: 020641

REGULATORY Attached Evaluation #

REVIEWS: Attached to:

Met per DECP020641 Not N/A Only if Applicable Administrative USAR STATEMENT: Requires a change to the USAR:

Does NOT require a change to the USAR

ANY DOCUMENTS YES If yes, enter: SWO #, or Condition Report #, if applicable.

IMPACTED? NO

Status: COMMITTED FINAL VOID SUPERSEDED Ismail Boussag ORIG Printed Name 03/15/2023 ORIG Date Printed Name Date

Signature

Signature ES9280479 QUALIFICATION REQUIRED: ES9280479 QUALIFICATION REQUIRED:

DigsigVer 2.8, 0.7 VERF Alex Alahmed 03/27/2023 VERF Printed Name Date Printed Name Date

Signature ES9280479 QUALIFICATION REQUIRED: ES9280479

Signature QUALIFICATION REQUIRED:

DigsigApp 2.8, 0.7 APP Jason Pankaskie 3/27/2023 APP Printed Name Date Printed Name Date

Signature

Signature DigsigCert 3.5 1.75 DigsigCert 3.5 1.75 Digitally signed by Ismail Boussag Date:

2023.03.27 15:21:35 -05'00' RPE Certification (For ASME Section III Stress Reports/Design Reports, refer to AP 05D-001 for qualification requirements)

FORM APF-05D-001-02, REV. 12 Page 2 CALCULATION CHANGE NOTICE CCN NO. XX-E-013 - 004 - CN010

Base Calc No. Rev No. Sequence No.

CALCULATION SUBJECT (Statement Of Problem) - Enter this in SUBJECT field in EIS:

DECP 020641 resulted in the relocation of the SA075B panel from NK05423 to NK05403 during RF25. The purpose of this CCN is to document the change and ensure that Appendix 3 of the parent calculation is updated at the next available opportunity to accurately reflect the current system configuration.

FORM APF-05D-001-02, REV. 12 Page 3 CALCULATION DATABASE INPUT CCN NO. XX-E-013 - 004 - CN010

Base Calc No. Rev No. Sequence No.

Link new systems to the calculation/CCN in EIS.

Systems Affected: SA, NK Develop relationships between interdependent calculations in EIS.

Additional None.

Calculations Providing Input to this calculation:

Additional None.

Calculations Impacted by this calculation:

Develop relationships between the calculation/CCN and controlled reference documents in EIS.

Additional None.

Controlled Documents Inputs to this calculation:

Additional None.

Controlled Documents Impacted by this calculation:

The reference documents listed below are those that cannot be linked to the calculation/CCN and shall be entered in the INDUSTRY REFERENCE field in EIS, e.g., ASME Codes, ANSI Standards, letters, etc.

Additional DECP020641 Other Reference Documents:

Link new components to the calculation/CCN in EIS.

Additional N/A Components:

REFER TO DESKTOP GUIDE FOR PROCESSING CALCULATIONS IN EIS

FORM APF-05D-001-02, REV. 12 Page 4 LIST OF EFFECTIVE PAGES CCN NO. XX-E-013 - 004 - CN010

Base Calc No. Rev No. Sequence No.

Page CCN Calc. CCN Calc. CCN Calc. CCN Calc.

No. Page Page Page Page Page Page Page Affected No. Affected No. Affected No. Affected DVR/SCRN/ /DVR/SCRN /DVR/SCRN /DVR/SCRN Other /Other /Other /Other

All Appendix 3

DVR = Design Verification Report (if applicable)

SCRN = Regulatory Screening (if applicable)

AD = Applicability Determination

FORM APF-05D-001-02, REV. 12 Page 5 CALCULATION SHEET CCN NO. XX-E-013 - 004 - CN010

Base Calc. No. Rev. No. Sequence No

Purpose

DECP 020641 resulted in the relocation of the SA075B panel from NK05423 to NK05403 in RF25. The purpose of this CCN is to document the change and ensure that Appendix 3 of the parent calculation is updated at the next available opportunity to accurately reflect the current system configuration.

Result, Conclusion, Margins, and Recommendation

3/4 a. Results and Conclusions

The changes proposed under this CCN does not change the results of the base calculation. Appendix 3 of the parent calculation needs to be updated at the next available opportunity to accurately reflect the current system configuration.

3/4 Margins

The changes proposed under this CCN do not adversely impact the results of the base calculation.

Therefore, these changes are acceptable.

3/4 Recommendations

There are no recommendations as a result of this CCN since this CCN does not adversely impact the results of the base calculation.

Impact on outstanding CCNs

The previous calculation change notices were reviewed to determine the cumulative impact.

x XX-E-013-004-CN001 - Void

x XX-E-013-004-CN002 - Final: DCP 14209 removes HMCP breakers from MCC cubicles NG03DBF6 and NG04DBF6 due to breaker coordination issues. The breaker cubicles provide power and control functions for Train A and B emergency diesel generator room suppl y fan motors DCGM01A and DCGM01B. Instead, the power supply will be modified to supply 480 VAC power to the fan motors directly from new load center breakers NG0308 and NG0408, respectively. MCC cubicles NG03DBF6 and NG04DBF6 will remain as PFSSD components, and the changes will not impact the evaluation performed by this calculation.

x XX-E-013-004-CN003 - Committed: Change Package 14658 replaces the cable from EDGs speed signal generators to the EDGs speed switches. Appendices 1, 2, and 3 are updated accordingly. The changes will not impact the evaluation performed by this calculation.

x XX-E-013-004-CN004 - Final: CP 15070 changes the 120VAC source from system NG to NN for the control room A/C unit inlet and exhaust dampers GKHZ0029A/B (Train A) & GKHZ0040A/B (Train B). These changes will not impact the evaluation performed by this calculation.

x XX-E-013-004-CN005- Superseded: CP 20021 replaces XNB01, which impacts its PFSSD components. These changes will not impact the evaluation performed by this calculation.

x XX-E-013-004-CN006 - Final: CP 12513 replaces XNB02, but the change will not affect the evaluation performed by the calculation. The update only impacts the PFSSD components for XNB02.

x XX-E-013-004-CN007-Final: CP 020021 replaces XNB01 and as a result, the relay designations for transformer protection features need to be revised. The update also includes a discussion of the load tap changer feature of the new transformer, with clarification that it is not PFSSD. Additionally, XX-E-013-004-CN007 replaces XXE-013-004-CN005 entirely. These changes will not impact the evaluation performed by this calculation.

FORM APF-05D-001-02, REV. 12 Page 6 CALCULATION SHEET CCN NO. XX-E-013 - 004 - CN010

Base Calc. No. Rev. No. Sequence No

x XX-E-013-004-CN008-Final: CP 13324 involves replacing the 7300 Controls System with a new Ovation DCS components. As a result of this change, updates have been made to the PFSSD functional descriptions and components to reflect the new system. These changes will not impact the evaluation performed by this calculation.

x XX-E-013-004-CN009-Committed: involves the replacement of switchyard breakers 13-8 and 13-48 with new switchyard breakers 13-49 and 13-50, respectively, as detailed in WIP-KD-7496-073-B-1, R0. The breaker numbers referenced in Appendix 3 of XX-E-013 are updated from 13-8 and 13-48 to 13-49 and 13-50 by this CCN. The change is in accordance with CP 020292. These changes will not impact the evaluation performed by this calculation.

Assumption and input

None.

Methodology and Computations

None.

Affected pages

3/4 Pages 3, 4, 14, 100 and 122 of appendix 3 need to be revised per attached markup