ML20154S264

Summary of 860310 Meeting W/Util in Bethesda,Md Re Resolution of Differences in Tech Specs for RCS High Point Vents (Hpv).List of Attendees & NRC Position Re Hpv/Porv Backup Capability Encl

ML20154S264
Person / Time
Site:	Calvert Cliffs
Issue date:	03/27/1986
From:	Jaffe D Office of Nuclear Reactor Regulation
To:	Thadani A Office of Nuclear Reactor Regulation
References
NUDOCS 8604010021
Download: ML20154S264 (6)

Text

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. ,8 p, NUCLEAR REGULATORY COMMISSION 7; j WASHINGTON. D. C. 20555 k . . . . . p# March 27, 1986 Docket Nos. 50-317 50-318 MEMORANDUM FOR: Ashok C. Thadani, Director PWR Project Directorate #8 Division of PWR Licensing-B FROM: D. H. Jaffe, Project Manager PWR Project Directorate #d Division of PWR Licensing-B

SUMMARY

OF MEETING HELD ON MARCH 10, 1986 WITH BALTIM0RE GAS AND ELECTRIC COMPANY (BG&E)

On March 10, 1986, representatives of BG&E and the NRC staff met in Room P-422 in the Phillips Building, Bethesda, Maryland. A list of attendees is shown in Enclosure 1. The purpose of the meeting was to resolve differences between BG&E and the NRC staff concerning Technical Specificar. ions (TS) for the reactor coolant system high point vents (HPVs).

The NRC staff indicated that the most significant difference between the NRC staff and BG&E on the HPV TS was the extent to which the pressurizer power-operated relief valves (PORVs) could be used as a backup to the HPVs. BG&E made a presentation concerning the extent to which the PORVs met the design criteria for HPVs as described in NUREG-0737, " Classification of TMI Action Plan Requirements," November 1980. During discussions concerning power supplies for the PORVs, the NRC staff requested detailed information on the O HPV power supplies. BG&E agreed to provide this information together with a '

F written summary of their presentation. ,

A BG&E and the NRC staff discussed the repair of inoperable HPVs. BG&E had proposed that the inoperable HPVs be repaired while in Cold Shutdown. The NRC staff expressed the need to repair the valves in Hot Shutdown; BG&E agreed to explore this option. ,

Following a caucus by the NRC staff, the following NRC position was presented:

In the event that the reactor vessel HPV becomes inoperable and cannot be restored to operability, the reactor should be shut down.

The PORV block valve should also be demonstrated operable when the PORV is acting as a backup to the pressurizer HPV.

8604010021 860327 DR ADOCK 0 % 3 7

• An inoperable pressurizer HPV should be repaired during the first hot shutdown occurring more than 30 days after the HPV becomes inoperable. -

Operability of the HPVs during Modes 1 and 2 1.5 acceptable. There is no need for the HPVs to be opened during Modes 1 and 2 as originally proposed.

• The PORVs can backup the HPVs to the extent shown in the matrix of-Enclosure 2.

BG&E agreed to supplement their submittal concerning the Calvert Cliffs HPVs by April 10, 1986.

D. H. Jaffe, Project Manager PWR Project Directorate #8 Division of PWR Licensing-B

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P.Krhtzer D. . 'e'hjch A.Thadani 3/ /86 3 86 3/72/86 l

~ Mr. J. A. Tiernan Baltimore Gas & Electric Company Calvert Cliffs Nuclear Power Plant CC:

Mr. William T. Bowen, President Regional Administrator, Region I Calvert County Board of U.S. Nuclear Regulatory Commission Commissioners Office of Executive Director Prince Frederick, Maryland 20768 for Operations 631 Park Avenue D. A. Brune, Esq. King of Prussia, Pennys1vania 19406 General Counsel Baltimore Gas and Electric Company P. O. Box 1475 Baltimore, Maryland 21203 Jay E. Silberg, Esq.

Shaw, Pittman, Potts and Trowbridge 1800 M Street, NW Washington, DC 20036 Mr. M. E. Bowman, General Supervisor Technical Services Engineering Calvert Cliffs Nuclear Power Plant MD Rts 2 & 4, P. O. Box 1535 Lusby, Maryland 20657-0073 Resident Inspector c/o U.S. Nuclear Regulatory Commission P. O. Box 437 Lusby, Maryland 20657-0073 Bechtel Power Corporation ATTN: Mr. D. E. Stewart Calvert Cliffs Project Engineer O 15740 Shady Grove Roari F Gaithersburg, Maryland 20760 .

Combustion Engineering, Inc.

ATTN: Mr. R. R. Mills, Manager Engineering Services P. O. Box 500 Windsor, Connecticut 06095

Department of Natural Resources Energy Administration, Power Plant '

Siting Program i ATTN: Mr. T. Magette \

Tawes State Office Building Anrapolis, Maryland 21204 \ x

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f ENCLOSURE 1

• I List of Attendees NRC D. H. Jaffe Norm Lauben Cecil Thomas G. A. Schwenk BG&E

. M. E. Bowman M. T. Finley W. P. McCaughey J. R. Lemons L. E. Salyards ,

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ENCLOSURE 2

-! NRC Position Concerning HPV/PORV Backup Capability PRZR l One l Head l NRC HPV PORV Vent Position X X O' 30 days 0 X X 30 days Next hot shut-X 0 0 down > 30 days

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X X X 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />

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X 0 X 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> 0 1 0 l X l 30 days 0 = Operable X = Inoperable O '

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. MEETING

SUMMARY

DISTRIBUTION Licensee: Baltimore Gas and Electric Company

• Copies also sent to those people on service (cc) list for subject plant (s).

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D.Jaffe OELD EJordan BGrimes ACRS-10 NRC Participants N.Lauben C. Thomas G.Schwenk O .

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