ML20012B631

Discusses Util Actions to Correct Inadequacies Identified in Implementation of Low Temp Overpressure Protection at Plant

ML20012B631
Person / Time
Site:	Calvert Cliffs
Issue date:	03/08/1990
From:	Mcdonald D Office of Nuclear Reactor Regulation
To:	Creel G BALTIMORE GAS & ELECTRIC CO.
References
NUDOCS 9003150440
Download: ML20012B631 (2)

Text

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Docket Nos. 50-317-Distribution:

i and 31B Docket rile DMcDonald i

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NRC/ Local PDRs EJordan' i

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Mr. G. C. Creel BBoger ACRS(10)

Vice President. Nuclear Energy =

RACepra JLinville Baltimore Sasl8 Electric Company.

HRood Plant File Calvert Cliffs Nuclear. Power Plant RJones i

'MD Rts 2 & 4 1

P.O.-Box.1535' Lusby, Maryland 20667 p

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Dear Mr. Creel:

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SUBJECT:

s LOWTEMPERATUREOVERPRESSUREPROTECT10N'(LTOP)-CALVERTCLIFFS

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. NUCLEAR POWER PLANT,-UNIT NOS. 1 AND 2~

As the result of inadequacies identified in the implementation of LTOP at the-1 Calvert Cliffs facilities, the NRC staff: identified actions that needed to be Fl taken by Baltimore Gar, and Electric (BG8E). prior to restart of Unit 1.

W included in these-act. ions '. s for BG&E to-provide an overview of the LTOP i

g'l+,psystem.'

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0' ByL1etters dated february 7 and March 2,1990 BG8E provided the requested H

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. system; overview. The initial letter addresses the differences between the c4 y

Q' ~ y?. original LTOP-system configuration and the current configuratio The March 2, L~

"f199. submittal provides a sununary level system description which includes:s

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?> e the design criteria used, hardware description, administrative controls ands i ;..

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].] ] procedures in: place, and required operator actions.

5 ffThetinformation provided will be used in conjunction with our review of your-1;

' A } Q Unit 1 Technical Specification amendment requested by another letter dated' 4

A (March 2, 1990, This requestiincludes new 10 CFR 50, Appendix G, heatup,and g

w J cooldownicurves which are used to establish LTOP operational limits.4 : Unit 1-

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swill.be operated in accordance with.its current approved Appendix G curves and

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@n,j(fLTOPoperationallimits'untilthearendmentLisapprovedand m ;

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s Thelissuance of Technica1' Specification Amendment No.140, issued March 6,;1990[

u ithe current. amendment requested,.and the supporting LTOP. system. overview'

.i provide all;the actions needed to be taken by BG&E, in' relation to LTOP, to

-support the restart of Unit 1.= -The = adequacy of LTOP for Unit 2.will be N

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. addressed prior to restart of the Unit.

.g Sincerely,

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ORIGINAL SIGNCD cY:.

Daniel G. Mcdonald, Senior Project Manager Project Directorate I-1

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s Division of Reactor Projects - I/II lV Office of Nuclear Reactor Regulation

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Mr. G. C. Creel

- Baltimore Gas & Electric Company Chlvert Cliffs Nuclear Power Plant CC:

Mr. William T. Bowen, President Mr. Joseph H. Walter Calvert County Board of Engineering Division Cou.issioners Public Service Commission of Maryland Prince Frederick, Maryland 20678 American Building 231 E. Baltimore Street B61timore, Maryland 21202-3486

0. A. Brune, Esq.

General Counsel Baltimore Gas and Electric Company Ms. Kirsten A. Burger, Esq.

P. O. Box 147f Maryland People's Counsel Baltimore, Maryland 71203 American Building, 9th Floor 231 E. Baltimore Street Mr. Jay E. Silberg, Esq.

Baltimore, Maryland 21202 Shaw, Pittman, Potts and Trowbridge 2300 N Street, NW Ms. Patricia Birnie Washington, DC 20037 Co-Director Maryland Safe Energy Coalition Mr. W. J. Lippold, General Supervisor P. O. Box 902 Technical Services Engineering Columbia, Maryland 21044 Calvert Cliffs Nuclear Power Plant MD Rts 2 7. 4 P. O. Box 1535 Lusby, Maryland 20657 Resident Inspector c/o ll.S. Nuclear Regulatory Consnission P. O. Box 437

,Lusby, Maryland 20657-s Mr. Thomas Magette Administrator - Nuclear Evaluations Department of Natural Resources 580 Taylor Avenue Tawes State Office Building PPER 83 Annapolis, Maryland 21401 Regional Administrator, Region I ll.S. ' Nuclear Regulatory' Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 6

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