ML20062L094

Discusses Util Request for Relief from Implementation Schedule for NUREG-0737,Item II.F.2, Instrumentation for Detection of Inadequate Core Cooling. Proposed Program Is Unacceptable & Does Not Relieve NUREG-0737 Requirement

ML20062L094
Person / Time
Site:	05000000, Prairie Island
Issue date:	12/18/1980
From:	Rubenstein L Office of Nuclear Reactor Regulation
To:	Novak T Office of Nuclear Reactor Regulation
Shared Package
ML093450149	List: ML13319A698 ML14190A386 ML14190A407 ML14190A410 ML15260A018 ML16245A451 ML16245A464 ML16245A519 ML16340B230 ML17208A670 ML17208A671 ML17319A601 ML17340A460 ML18044A564 ML18044A670 ML18044A671 ML18082A762 ML18082A870 ML18082B237 ML18085A271 ML18139A593 ML18139A594 ML19207B142 ML19208A323 ML19254G983 ML19254H090 ML19254H091 ML19262E717 ML19264A126 ML19264B199 ML19271A912 ML19273C792 ML19273D125 ML19275E724 ML19275E727 ML19276J691 ML19281C520 ML19290G036 ML19290G038 ML19294C656 ML19294C857 ML19295B828 ML19295B969 ML19295D087 ML19295D182 ML19295E448 ML19295E739 ML19296E856 ML19296F114 ML19297A101 ... further results
References
FOIA-80-515, FOIA-80-555, RTR-NUREG-0737, TASK-2.F.2, TASK-TM NUDOCS 8101150059
Download: ML20062L094 (2)

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UNITED STATES g

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• / /. E WASHINGTON D.C.20555 f[

ii gg*v DEC l a 1980 MEMORANDUM FOR:

T. Novak, Assistant Director for Operating Reactors, DL

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FROM:

L. S. Rubenstein, Assistant Director for Core and Containment Systems, DSI

SUBJECT:

REQUEST FOR RELIEF FROM IMPLEMENTATION SCHEDULE FOR NUREG-0737, ITEM II.F.2. INSTRUMENTATION FOR DETECTION OF INADEQUATE CORE COOLING Plant Name:

Prairie Island 1 & 2 Docket Numbers:

50-282, 50-306 NSS Supplier:

Westinghouse Licensing Stage:

OR Responsible Branch:

Operation Reactors Branch #3 Project Manager:

R. Martin Review Status:

Complete The Thermal-Hydraulic Section of Core Performance Branch has reviewed Northern States Power Company's (NSP) request for relief from the implementation schedule for NUREG-0737, Item II.F.2 Instrumentation for Detection of Inadequate Core Cooling for Prairie Island Units 1 & 2, dated November 20, 1980 from L. Mayer (NSP) to H. Denton (NRC).

NSP proposed to participate in an industry development program which is not defined and therefore does not include a schedule. Their guess is that the program would require two years for completion and an additional two years for procurement and installation of the equipment. There is no assurance that the program would be successful or would lead to choice of a system other than those which are already conmercially available. Finally, they propose to submit design details and their schedule for installation, testing, and evaluation of the selected system six months after the NRC certifies that the system is acceptable. We require such information before we can detennine that the system is acceptable.

The NSP proposal would result in clearly unacceptable delay in implementation of any system. This is contrary to the staff position which is clearly stated in NUREG-0737. Our letter to the Conmissioners, IECY-80-529 December 4,1980, recommends that the NUREG-0737 schedule requirements (January 1,1981 for selection and documentation of the measurement system and January 1,1982 for installation) should be maintained.

Contact:

T. Huang

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DEC 181980 T. M. Novak Please advise NSP that the program proposed in their November 20 subinittal is unacceptable and in no way relieves them of the responsiblity to provide the ~

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II.F.2 docuinentation required in January 1981 as specified in h0 REG-0737.

L. S. Rubens ein, Assistant Director for Core and Containment Systems Division of Systems Integration cc:

D. Ross L. Rubenstein W. Johnston L. Phillips P. Check M ang R. Martin R. Clark P. Grant v

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