ML20205C604

Safety Evaluation Supporting Util 831105 Response to Generic Ltr 83-28,Item 4.5.2, Reactor Trip Sys Reliability,On-Line Testing

ML20205C604
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/19/1987
From:	Office of Nuclear Reactor Regulation
To:
Shared Package
ML20205C587	List: ML20205C581 ML20205C604
References
GL-83-28, NUDOCS 8703300219
Download: ML20205C604 (1)

Text

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UNITED STATES f f.,,

NUCLEAR REGULATORY COMMISSION

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SAFETY EVALUATION BY THE OFFICE OF NUCLEAP REACTOR PEGl'LATION CONCERNING GENERIC LETTER 83-?8. ITEP 4.5.7 REACTOR TRIP SYSTEM PELIABILITY, Oh-LINE TESTING

/RKANSAS POWER AND LIGHT C0FPANY RKANSAS NUC! EAR ONE,liNIT NO. 1 I GOCKET NO. 50-313

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INTRODUCTION AND SUMMAPY ,

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GenericL.etter83-?8wasissuedbyNPConJulyC,1983,indicatingactionstobe M taken by applicantsiand license s based on the generic implications of the Salem ATWS events. Item t. 5 states a staff position which requires on-line functional testing of the reactor trip systen, including independent testing of the diverse trip features of the reactor trip breakers, for all piants. Item 4.5.? requires applicants and licensees with plants not currently designed to, permit this peri-odic on-line testing to justify not making modifications to permit such testing.

, By .W/two Oversize Diagrams.Aperture Cards Are Available in PDR|letter dated November 5,1983]], the licensee, Arkansas Power & Light Company,-

responded to the staff position regarding item 4.5.? of Generic Letter 83-28.

Our review of this response finds it to be acceptable.

EVALUATIOP The licensee states that Arkansas Power and Light performs on-line testing of the i reactor trip system, including independent testing of the undervoltage and shunt trip attachments.

CONCLUSION The staff finds that the Arkansas Nuclear One, Unit 1 is designed to permit on-line functional testing of the reactor trip system. Thus, the applicant meets the staff position of Item A.S.? of Generic letter 83-?8.

Contributer: A. Toalston Date: March 19,1987 G703300219 870319 PDR ADOCK 05000313 P PDR t ,

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