ML16173A258: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
(Created page by program invented by StriderTol)
 
(3 intermediate revisions by the same user not shown)
Line 1: Line 1:
{{Adams
#REDIRECT [[L-2016-124, 10 CFR 50.46 30-Day Report for Turkey Point, Seabrook, and Point Beach]]
| number = ML16173A258
| issue date = 06/17/2016
| title = 10 CFR 50.46 30-Day Report for Turkey Point, Seabrook, and Point Beach
| author name = Nicholson L
| author affiliation = Nextera Energy
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000250, 05000251, 05000266, 05000301, 05000443
| license number =
| contact person =
| case reference number = L-2016-124
| document type = Licensee 30-Day Written Event Report
| page count = 2
}}
 
=Text=
{{#Wiki_filter:...... ----June 17, 2016 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Re:
 
==Subject:==
 
==References:==
Florida Power & Light Company Turkey Point Units 3 and 4 Docket Nos. 50-250, 50-251 NextEra Energy Seabrook, LLC Seabrook Station Docket No. 50-443 NextEra Energy Point Beach, LLC Point Beach Nuclear Plant, Units 1 and 2 Docket Nos. 50-266, 50-301 10 CFR 50.46 30-Day Report L-2016-124 10 CFR 50.46(a)(3)(ii) 1. FPL letter to NRC, dated April 5, 2016, "Acceptance Criteria for Emergency Core Cooling Systems in Light Water Nuclear Power Reactors" -30 Day Special Report" 2. NextEra Energy Seabrook Station, LLC letter to NRC, November 7, 2015, "Best Estimate Large Break Loss of Coolant Accident 10 CFR 50.46 30-Day Report" 3. NextEra Energy Point Beach, LLC letter to NRC, dated April 6, 2016, "Large Break Loss-of-Coolant Accident Margin Summary Sheet Day Report" In accordance with 10 CFR 50.46(a)(3)(ii), Florida Power & Light's Turkey Point Nuclear Plant, NextEra Energy Seabrook, LLC, and NextEra Energy Point Beach, LLC (hereby referred to as NextEra), are submitting this 30-day report for the Turkey Point Nuclear Plant (PTN), Units 3 and 4, Seabrook Station (SBK), and Point Beach Nuclear Plant (PBNP), Units 1 and 2 for the emergency core cooling system (ECCS) analysis performed by Westinghouse Electric Company, LLC. NextEra Energy, Inc. 700 Universe Boulevard, Juno Beach, FL 33408 
""'-' .. Page 2 of 2 NextEra has been informed by Westinghouse of a closely-related group of errors related to the calculation of high temperature oxidation in the Point Beach Units 1 and 2, Seabrook and Turkey Point Units 3 and 4 Best-Estimate (BE) Large-Break Loos-of-Coolant Accident analyses. Previous LBLOCA changes to peak clad temperature (PCT) are documented in Reference 1, 2 and 3 for each site, respectively. NextEra has determined that correcting the high temperature oxidation calculation in WCOBRA!TRAC is estimated to have a negligible impact on the BE LBLOCA PCT analysis results, leading to an estimated PCT impact of 0°F. This results in the PCT limit of 2200 °F continuing to be met. Additionally, NextEra determined that after correcting the high temperature oxidation calculation in WCOBRA!TRAC, the BE LBLOCA analysis results continued to maintain compliance with the 10 CFR 50.46 criteria including maximum local oxidation and core wide oxidation criteria. Although there is no change to the PCT, this information is being submitted within 30 days, pursuant to 1 O CFR 50.46, since Turkey Point, Seabrook and Point Beach already reside above a cumulative change of 50 °F (which constitutes a "significant change" per the 10 CFR 50.46 regulation). This submittal contains no new commitments or revisions to existing commitments. Larry Nicholson Director, Nuclear Licensing and Regulatory Compliance cc: Administrator, Region I, USNRC Administrator, Region II, USNRC Administrator, Region Ill, USNRC Project Manager, Turkey Point Nuclear Plant, USNRC Project Manager, Seabrook Station, USNRC Project Manager, Point Beach Nuclear Plant, USNRC Resident Inspector, Turkey Point Nuclear Plant, USNRC Resident Inspector, Seabrook Station, USNRC Resident Inspector, Point Beach Nuclear Plant, USNRC}}

Latest revision as of 19:45, 6 April 2019

Redirect to:

Retrieved from "https://kanterella.com/w/index.php?title=ML16173A258&oldid=1412976"