ML21068A414

NRR E-mail Capture - Final RAI for Salem Unit 1 LAR to Revise and Relocate Pressurizer Overpressure Protection System Limits to Pressure and Temperature Limits Report

ML21068A414
Person / Time
Site:	Salem
Issue date:	03/09/2021
From:	James Kim NRC/NRR/DORL/LPL1
To:	Duke P Public Service Enterprise Group
References
L-2020-LLA-0263
Download: ML21068A414 (3)

Text

From: Kim, James Sent: Tuesday, March 9, 2021 2:37 PM To: Duke, Paul R.

Cc: Marabella, Lee A.; Speer, Samuel E.

Subject:

Final RAI for Salem Unit 1 LAR to Revise and Relocate Pressurizer Overpressure Protection System Limits to Pressure and Temperature Limits Report (EPID L-2020-LLA-0263)

Attachments: RAI-SNSB.docx

SUBJECT:

Salem Generating Station Unit 1 - Final RAI Re: Revise and Relocate Pressurizer Overpressure Protection System Limits to Pressure and Temperature Limits Report (EPID L-2020-LLA-0263)

Mr. Duke, By application dated December 06, 2020 (Agencywide Documents Access and Management System Accession No. ML20343A128), PSEG Nuclear LLC, the licensee, submitted a license request to change the Salem Generating Station Unit 1 Technical Specifications (TSs). The proposed TS change would revise the reactor coolant system pressure-temperature limits and the pressurizer overpressure protection system limits, and relocate them to a Pressure and Temperature Limits Report.

The NRC staff reviewed the proposed change and determined that additional information is required to complete the review and PSEG agreed to respond to this request within 30 days. A publicly available version of this final RAI (attached) will be placed in the NRCs ADAMS.

James Kim Project Manager -Salem NRR/DORL/LPL1 301-415-4125

Hearing Identifier: NRR_DRMA Email Number: 1065 Mail Envelope Properties (BLAPR09MB6196E017DE331CAF070CC286E4929)

Subject:

Final RAI for Salem Unit 1 LAR to Revise and Relocate Pressurizer Overpressure Protection System Limits to Pressure and Temperature Limits Report (EPID L-2020-LLA-0263)

Sent Date: 3/9/2021 2:36:50 PM Received Date: 3/9/2021 2:36:00 PM From: Kim, James Created By: James.Kim@nrc.gov Recipients:

"Marabella, Lee A." <Lee.Marabella@pseg.com>

Tracking Status: None "Speer, Samuel E." <Samuel.Speer@pseg.com>

Tracking Status: None "Duke, Paul R." <Paul.Duke@pseg.com>

Tracking Status: None Post Office: BLAPR09MB6196.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 1028 3/9/2021 2:36:00 PM RAI-SNSB.docx 32694 Options Priority: Normal Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

REQUEST FOR ADDITIONAL INFORMATION BY NUCLEAR SYSTEMS PERFORMANCE BRANCH ON AMENDMENT TO REVISE AND RELOCATE PRESSURIZER OVERPRESSURE PROTECTION SYSTEMS LIMITS TO PRESSURE AND TEMPERATURE LIMITS REPORT SALEM GENERATING STATION UNIT 1 DOCKET NO. 50-272 By application dated December 06, 2020 (Agencywide Documents Access and Management System Accession No. ML20343A128), pursuant to Section 50.90 of Title 10 of the Code of Federal Regulations (10 CFR 50.90), PSEG Nuclear LLC is submitting a request for an amendment to the Technical Specifications (TS) for Salem Generating Station Unit 1 (Salem Unit 1)

Regulatory Basis The 10 CFR 50 Appendix G specifies fracture toughness requirements for ferritic materials of pressure-retaining components of the reactor coolant pressure boundary to provide adequate margins of safety during any condition of normal operation, including anticipated operational occurrences and system hydrostatic tests, to which the pressure boundary may be subjected over its service lifetime.

Background for RAI Safety evaluation of WCAP-14040-A stated that the applicant should meet the following technical requirement for low temperature overpressurization protection:

Requirement 7: Regarding the low temperature overpressure protection/cold overpressure mitigating system, the lift setting limits for the power operated relief valves should be developed using NRC-approved methodologies.

To meet this requirement, the staffs WCAP-14040 SE prescribed that the applicant should use the same specialized version of LOFTRAN, which was approved in WCAP-14040 Revision 2 for the mass and heat input transient analysis.

RAI: Use of LOFTRAN for Mass and Heat Input Transient Analysis Please confirm that the specialized version of LOFTRAN, which was approved in WCAP-14040 Revision 2, had been used to perform the mass and heat input transient analysis as reported in the license amendment request and the report, LTR-SCS-20-28, Salem Unit 1 Low Temperature Overpressure Protection System (LTOPS) / Pressurizer Overpressure Protection System (POPS) Analysis, Rev. 1, or provide justification if there exists deviation of using this specialized version of LOFTRAN.