ML22146A347

Slides - Pre-Submittal Meeting for February 23 with Nextera Energy Seabrook, LLC Regarding Planned Submittal of License Amendment Request to Update Pressure-Temperature Limits Curves Period of Applicability

ML22146A347
Person / Time
Site:	Seabrook
Issue date:	02/23/2022
From:	NextEra Energy Seabrook
To:	Office of Nuclear Reactor Regulation
Poole J, NRR/DORL/LPL1
Shared Package
ML22146A340	List: ML22146A342 ML22146A347
References
EPID L-2022-LRM-0016
Download: ML22146A347 (6)

Text

Seabrook Station Unit 1 Pre-Submittal Meeting License Amendment Request Update Pressure-Temperature Limits (PTL) Curves Period of Applicability Based on Latest Fluence Projections February 23, 2022

Agenda

• License Amendment Request (LAR) Purpose

• Surveillance Capsule X

- Applicable standards, guidance

- Fluence Projection

- Period of Applicability

• Schedule / Implementation

• Questions, Follow-up Items 2

Purpose Update RCS PTL curves

• TS 3.4.9.1, Figures 3.4-2 and 3.4-3 TS 3.4.9.3, Figure 3.4-4

• Change Period of Applicability from 55 EFPY to 52.6 EFPY where specified

• Address Non-Conservative TS per RG 1.239.

- Currently in Seabrook CAP

- Seabrook was at 26.46 EFPY at EOC 20 (Spring 2020)

• No other proposed changes

• Process as normal LAR 3

Surveillance Capsule X

• Results transmitted September 2021 (ML21273A113)

- 10 CFR Part 50, Appendix H

• Applicable standards, guidance

- WCAP-17441-NP (55 EFPY PT Limit curves & fluence basis)

- 55 EFPY fluence projection was 3.05E19 n/cm2

• Revised Fluence Projection

- WCAP-18607 Capsule X revised the fluence

- 3.05 n/cm 2 reached at 52.6 EFPY

- Period of Applicability 4

Schedule / Implementation

• Submit 4th Quarter 2022

• Request LAR approval within one year

• Request 90-day implementation period 5

Questions, Comments and Follow-up Items