ML24094A328
| ML24094A328 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 04/17/2024 |
| From: | Michael Mahoney Plant Licensing Branch II |
| To: | Haaf T Duke Energy Progress |
| Mahoney M | |
| References | |
| EPID L-2024-LLE-0004 | |
| Download: ML24094A328 (3) | |
Text
April 17, 2024
Thomas P. Haaf Site Vice President Shearon Harris Nuclear Power Plant Mail Code NHP01 5413 Shearon Harris Road New Hill, NC 27562-9300
SUBJECT:
SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1 - ACCEPTANCE OF EXEMPTION REQUEST FROM CERTAIN REQUIREMENTS IN 10 CFR 50.55a(h)(2) (EPID L-2024-LLE-0004)
Dear Thomas Haaf:
By letter dated February 6, 2024 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML24037A284), as supplemented letter dated April 3, 2024 (ML24094A105), Duke Energy Progress, LLC (Duke Energy) submitted a request for an exemption from certain requirements of Title 10 of the Code of Federal Regulations (10 CFR)
Section 50.55a(h)(2), Protection systems, for the Shearon Harris Nuclear Power Plant, Unit 1 (Harris). Specifically, the exemption request would remove the requirement for the Reactor Protection System cables that terminate wit hin the Turbine Control System Cabinet G (1TCS-CAB-G) to meet the requirement in IEEE 279-1971, Criteria for Protection Systems for Nuclear Power Generating Stations, Section 4.6, Channel Independence, that the cables be independent and physically separated. The exemption request was submitted under the Risk-Informed Process for Evaluations (RIPE).
The purpose of this letter is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this exemption request. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review under RIPE. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requir ements or the licensing basis of the plant.
Pursuant to 10 CFR 50.12(a), the applicant shall demonstrate that a proposed exemption is authorized by law, will not present an undue risk to the public health and safety, are consistent with the common defense and security, and special circumstances are present.
The NRC staff has reviewed your application, including the supplemental information provided in the letter dated April 3, 2024, and concluded that it does provide technical information in sufficient detail to enable the NRC staff to per form a detailed technical review under RIPE.
However, during the staffs acceptance review, the staff identified that additional clarity is needed in your adverse impacts and defense-in-depth analysis as part of the review.
Communication of the staffs information needs identified will be forthcoming.
T. Haaf
Given the lesser scope and depth of the acceptance review as compared to the detailed technical review, there may be instances in which issues that impact the NRC staffs ability to complete the detailed technical review are identified despite completion of an adequate acceptance review. You will be advised of any further information needed to support the NRC staffs detailed technical review by separate correspondence.
Based on the information provided in your submittal, the NRC staff has estimated that this licensing request will take approx imately 105 hours0.00122 days <br />0.0292 hours <br />1.736111e-4 weeks <br />3.99525e-5 months <br /> to complete. The NRC staff expects to complete this review by June 7, 2024. If there are emergent complexities or challenges in our review that would cause changes to the initial forecasted completion date or significant changes in the forecasted hours, the reasons for the changes, along with the new estimates, will be communicated during the routine interactions with the assigned project manager.
These estimates are based on the NRC staffs initial review of the application, and they could change, due to several factors including requests for additional information (or requests for confirmatory information), unanticipated addition of scope to the review.
If you have any questions, please contact me at (301) 415-3867 or Michael.Mahoney@nrc.gov.
Sincerely,
/RA/
Michael Mahoney, Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
Docket No. 50-400
cc: Listserv
ML24094A328 OFFICE NRR/DORL/LPL2-2/PM NRR/DORL/LPL2-2/LA NRR/DORL/LPL2-2/BC NRR/DORL/LPL2-2/PM NAME MMahoney ABaxter DWrona MMahoney DATE 04/03/2024 04/04/2024 04/17/2024 04/17/2024