ML17206A826

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Submits Info in Response to NRC Request.Zero Power Physics Tests After Reload Performed According to Procedures.Review Criteria Will Be Established.Evaluation of Difference in Individual Assemblies Power to Be Sent in Two Weeks
ML17206A826
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 05/25/1979
From: Robert E. Uhrig
FLORIDA POWER & LIGHT CO.
To: Reid R
Office of Nuclear Reactor Regulation
References
L-79-140, NUDOCS 7905310305
Download: ML17206A826 (5)


Text

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~ % 1'P REGULATORY ORNATION DISTRIBUTION SYS>> (RIBS)

ACCESSION NBR:7905310305 DOC,DATE! 79/05/25 NOTARIZED; NO DOCKET 0 FACIL,50 335 ST, LUCIE PLANT UNIT 1 FLORIDA POWER 5 LIGHT CO, 05000335 AUTH, NAME AUTHOR AI'FILIATION UHZIGIR,K~ FLORIbA POWER 8, lIGHT CO, REC IP. NAME RECIPIENT AFFILIATION REIDr Rs W>> OPERATING REACTORS BRANCH

SUBJECT:

SUBMITS INFO IN RESPONSE TO NRC REQUEST ~ ZERO POWER PHYSICS TESTS AFTER RELOAD PERFORMED ACCORDING TO PROCEDURES, REVIEW CRITERIA WILL BE ESTABLISHED, EVALUATION OF DIFFERENCE IN INDIVIDUAL ASSEMBE,IES POWER TO BE SENT IN TwO WEEKS ~

DISTRIBUTION CODE: A027S COPIES RKCEIVEDeLTR ~ ENCL ~ SIZE:

TITLE: REACTOR STARTUP TEST REPORT+

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RECIPIENT GPPIES RECIPIENT CO~IES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL ACTION: 05 BC ~R 2 INTERNAL: 0 EG FI 1 02 NRC PDR 0 09 MPA 10 TECH AST EDO 12 EEB 1 li PLANT SYS BR 13 REAC SFTY BR 15 CORE PERF BR 1 16 QAB EXTERNAL: 03 LPDR OLl NS IC 17 ACRS 4'

TOTAL NUMBER OF COPIES REQUIRED: LTTR 18 ENCL

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. BOX 529100, MIAMI, FL 33152 FLORIDA POWER & LIGHT COMPANY May 25, 1979 L-79-140 Office of Nuclear. Reactor Regulation Attention: Mr. R. W. Reid, Chief Operating Reactors Branch 84 Division of Operating Reactors U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Dear Mr. Reid:

COPY Re: St. Lucie Unit 1 REBOLIITORY DOCIiET FILE Docket No. 50-335 Startu Testin C cle 3 The following information is submitted in response to a request from your staff.

The total group measured CEA worth for all regulating banks must be within +10% of total design worth. If the total worth 'is more than 10% above the design worth, FRG review and disposition is required. If the total worth is more than 10% below the design worth, shutdown bank B is measured. If the acceptance criteria (for all regulating banks plus shutdown bank B) is still not met, an evaluation by the NSSS vendor is requested with final review and disposition to be made by the FRG.

Zero Power Ph sics Tests After Reload are performed in accordance with p ant operating procedures. The test results are reviewed and approved by the Reactor Engineering Supervisor and the Facility Review Group prior to entering Mode 1 operation (>5% power). The review and approval encompasses any retests or analyses that are performed as a result of exceeding acceptance criteria. In essence, the zero power physics test results, including the basic program and any additional testing or analyses determined to be necessary, must be satisfactory before Mode 1 operation is allowed.

Review criteria will be established for the Cycle 3 100% power distribution tests (at equilibrium conditions). If the difference between measured and predicted power in individual assemblies is not within:

1) +10% of predicted if assembly power is >.9 average power, or V905 810 906 PEOPLE... SERVING PEOPLE

Office of Nuclear Reactor Regulation Page Two

2) +155 of predicted if assembly power is <.9 average power, an evaluation will be completed wi thin approximately 2 weeks to determine the reason for the difference.

Very truly yours, Robert E. Uhrig Vice President Advanced Systems 8 Technology REU/MAS/cph cc: Mr. James P. O'Reilly, Region II Harold F. Reis, Esquire