ML12121A384

Acknowledgment Letter Regarding Draft Propose Guideline for Strainer Fiber Bypass Test Protocol Associated with Generic Letter 2004

ML12121A384
Person / Time
Site:	Saint Lucie, Point Beach, Seabrook, Turkey Point
Issue date:	08/31/2012
From:	Farideh Saba Plant Licensing Branch II
To:	Nazar M Florida Power & Light Co
Paige J
References
GL-04-002, TAC MC4705, TAC MC4706, TAC MC4710, TAC MC4711, TAC MC4716, TAC MC4725, TAC MC4726
Download: ML12121A384 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555*0001 August 31,2012 Mr. Mano Nazar Executive Vice President and Chief Nuclear Officer Florida Power and Light Company P.O. Box 14000 Juno Beach, Florida 3340B-0420

SUBJECT:

SEABROOK STATION, POINT BEACH NUCLEAR PLANT, UNITS 1 AND 2, SAINT LUCIE, UNITS 1 AND 2, AND TURKEY POINT, UNITS 3 AND 4 ACKNOWLEDGMENT LEITER REGARDING STRAINER FIBER BYPASS TEST PROTOCOL ASSOCIATED WITH GENERIC LEITER 2004-02 (TAC NOS. MC4716, MC4705, MC4706, MC4710, MC4711, MC4725, AND MC4726)

Dear Mr. Nazar:

By letter dated March 3, 2012 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML12066A035), Florida Power & Light Company (FPL) and NextEra Energy Resources, LLC (NextEra) submitted a draft proposed guideline titled, "Strainer Fiber Bypass Test Protocol," for the U.S. Nuclear Regulatory Commission (NRC) staff's review. The protocol was developed to provide a consistent method for testing emergency core cooling system (ECCS) recirculation strainer fiber bypass for use by FPL and NextEra, and provides a consistent and uniform set of considerations for the performance of strainer bypass testing that would later be incorporated into a vendor specific strainer test plan. The NRC reviewed the March 3, 2012, document and provided the licensee with comments and a markup of the draft proposed test protocol (ADAMS Accession No. ML12101A349). The licensee incorporated the NRC staff comments and provided a revised protocol on August 10, 2012 (ADAMS Accession No. ML1222BA330). The NRC staff reviewed this revised protocol and does not have any additional comments at this time.

The intent of this test is to measure the amount of fibrous debris that bypasses or passes through an ECCS Sump Strainer. The fibrous material used in the testing is representative of debris that could be generated during a loss-of-coolant accident. The results of the testing will be used to quantify the amount of debris that could bypass a plant strainer and to assist in evaluation of the response of equipment downstream of the strainer. The NRC staff believes that the test will produce results that will be realistic or conservative when compared to actual plant strainer bypass. Also, the NRC staff agrees that the test protocol can be used to help quantify strainer bypass for these purposes. However, the test results are somewhat dependent on human actions not fully controlled by the test plan and evaluations of the test results after the testing is cO,mplete. Therefore, while the NRC staff does not have any questions or additional comments regarding the strainer fiber bypass test protocol, dated August 10, 2012, the NRC staff does not endorse this test protocol.

M. Nazar

- 2 The NRC staff may observe strainer bypass testing and review its evaluation and application as part of its overall review of Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation during Design Basis Accidents at Pressurized-Water Reactors."

If you have any questions, please contact me at (301) 415-1447.

Sincerely,

/'

j-P)~ J~ L Farideh E. Saba, Senior Project Manager Plant licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-335,50-389,50-443, 50-266,50-301,50-250, and 50-251 cc: Distribution via Listserv

'.. ML12121A384 OFFICE LPL2-2/PM LPL2-2/LA LPL2-2/PM LPL3-1/PM LPL 1-2/PM DSS/SSIB/BC LPL2 2/BC(A)

NAME JPaige BClayton TOrf TBeltz J Lamb (JHugh~for)

SBailey (w/comments)

JQuichcho (FSaba for)

DATE 8/22/12 8/22/12 8/27/12 8/31/12 8/31/12 8/31/12 8/31/12