ML25234A191

E-Mail - Transmittal of Final Safety Evaluation for Electric Power Research Institute Report 3002028939, Risk-informed High-Energy Line Break Evaluation Requirements

ML25234A191
Person / Time
Site:	Electric Power Research Institute
Issue date:	08/29/2025
From:	Lois James Licensing Processes Branch
To:	Ruszkowski M Electric Power Research Institute
References
EPRI TR 3002028939, EPID L-2024-LRM-0062 pre-app, EPID L-2024-TOP-0003 pre-fee, EPID L-2024-NTR-0006 post-fee, Risk-Informed HELB Methodology
Download: ML25234A191 (1)

Text

1 Lois James From:

Lois James Sent:

Friday, August 29, 2025 8:11 AM To:

Ruszkowski, Michael J.

Cc:

RidsNrrOd Resource; RidsNrrDex Resource; RidsNrrDexEMIB Resource; RidsNrrDexESEB Resource; RidsNrrDnrl Resource; RidsNrrDnrlNphp Resource; RidsNrrDorl Resource; RidsNrrDorlLlpb Resource; RidsNrrDra Resource; RidsNrrDraApla Resource; Demetrius Murray; Lois James; John Bozga; Ching Ng; Kamal Manoly; Chakrapani Basavaraju; Kaihwa Hsu; David Rudland; David Gennardo; Stephen Cumblidge; Eric Reichelt; Stewart Bailey; Bob Pascarelli; Ian Tseng; Matthew Mitchell; Robert Tregoning; Jeff Poehler; Steve Ruffin; ext_Fernando_Ferrante; mruszkowski@epri.com; poregan@comcast.net; Jennie Rankin; ext_Fernando_Ferrante; mruszkowski@epri.com; poregan@comcast.net; ext_Ashley_Lindeman; rfougerousse@epri.com

Subject:

Transmittal of Final Safety Evaluation for Electric Power Research Institute Report 3002028939, Risk-informed High-Energy Line Break Evaluation Requirements (EPID L-2024-NTR-0006)

Attachments:

EPRI TR 3002028939 RI-HELB - Final SE - final.pdf Michael Ruszkowski, Plant Support Director Electric Power Research Institute 1300 West W.T. Harris Blvd Charlotte, NC 28262-8550

Dear Michael Ruszkowski:

By letter dated July 23, 2024 (Agencywide Documents Access and Management System (ADAMS)

Accession No. ML24205A146), Electric Power Research Institute (EPRI) submitted EPRI Technical Report 3002028939, Risk-Informed High-Energy Line Break Evaluation Requirements, (also referred as EPRI TR RI-HELB) to the U.S. Nuclear Regulatory Commission (NRC) for review and approval. EPRI TR RI-HELB provides an alternative means for assessing and confirming that plant structures, systems, and components that are important to safety are adequate to accommodate the effects of postulated accidents, including appropriate protection against the dynamic and environmental effects of postulated pipe ruptures.

By email dated September 10, 2024 (ADAMS Accession No. ML24214A023), NRC staff accepted EPRI TR RI-HELB for review.

By email dated August 22, 2025, the NRC staff issued its safety evaluation (SE) for EPRI TR RI-HELB (ADAMS Accession No. ML25129A069) for proprietary review.

By email dated August 25, 2025 (ADAMS Accession No. ML25241A020), EPRI informed the NRC staff that there was no proprietary information in the SE for proprietary review.

Based on review of the information submitted in EPRI TR RI-HELB, audit discussion, and review of responses to requests for additional information, the NRC staff finds the EPRI TR RI-HELB is acceptable for referencing subject to the limitations specified in the EPRI Report 3002028939, and in the NRC SE. The NRC staff evaluation is provided in this SE.

ML25234A189 (Pkg); ML25234A191 (E-mail); ML25234A193 (SE)

^via eConcurrence *via email OFFICE DORL/LLPB/PM DORL/LLPB/LA DNRL/NPHP/BC DRA/APLA/BC NAME LJames DHarrison*

MMitchell*

BPascarelli*

DATE 08/01/2025 08/04/2025 08/01/2025 08/01/2025 OFFICE DEX/ELTB/BC DEX/EMIB/BC OGC (NLO)

DORL/LLPB/BC NAME JPaige*

SBailey*

MChwedczuk*

JRankin*

DATE 08/11/2025 08/14/2025 08/22/2025 08/29/2025 OFFICE DORL/LLPB/PM NAME LJames DATE 08/29/2025