ML20238B545
| ML20238B545 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 01/15/1987 |
| From: | Solberg D NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Mcneil S Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20237F598 | List:
|
| References | |
| FOIA-87-388 NUDOCS 8709010274 | |
| Download: ML20238B545 (2) | |
Text
-
t N
a * ~~~
MEMORANDUM FOR:
Scott McNeil Project Manager PWR Project Directorate #8 Division of_PWR-Licensing-B, NRR FROM:
Donald Solberg Reactor Systems Branch Division of Reactor System Safety RES
SUBJECT:
REQUESTED INPUT FROM CALVERT CLIFFS STAFF In order for us to complete a study supporting NRC reevaluation of B&W plant-safety, we need some support from the Calvert Cliffs plant staff. Our minimal needs are presented in the enclosure. The data will be used to construct' necessary analysis models of Calvert Cliffs for a comparison of plant responses and demands placed on safety equipment and operating staff for comparable transients in representative plants of the three PWR vendors.
In our telephone conversation with the Calvert Cliffs staff, I also-agreed to take actions defined in the enclosure.
If I or my contractor can be of further help in this matter, please call me.
I appreciate your help and the cooperation of the 'Calvert Cliffs ~ staff for the rapid response provided to our request. This schedule is necessary for us to meet NRC's schedule for B&W reevaluation.
)
Nf0hgyj4870827 Donald Solberg 5HOLLYB7-388 PDR Reactor Systems Branch Division of Reactor System Safety. RES
Enclosure:
NRC Agreement w/Calvert Cliffs Staff cc:
BMorris LShotkin WBeckner JJenkins j
-1
\\
Acappuci, NRR i
\\
RJones, NRR MRubin, NRR DHanson, EG8G
,0 f$
\\
OFF:
R58 ffC()
- RSS /
- R5B PL :
NAME: DSolberg:pd :WBabner
- LSho'tki n' DATE: 1/ /5 /87
- 1/
V87
- l/IF /87 j
27f j
H
]
1 NRC AGREEMENT WITH CALVERT CLIFFS STAFF Calvert Cliffs staff agrees to provide NPC with the following:
1.
Agreement to construct a RELAP5 model of Calvert Cliffs from an existing TRAC model; A current copy of the Calvert Cliffs emergency operating procedure (EOP) l 2.
by 1/21/87; l
3.
To meet with 2 to 4 NRC contractor staff (EG&G, Idaho) for a' discussion between them and Calvert Cliffs operations staff to obtain clarification and detailed infomation needed on plant operations and design. This will be limited to 16 man hours of Calvert Cliffs operating staff time.
NRC agrees to supply to Calvert Cliffs staff or take the following actions:
)
i 1.
Study results and draft report sections dealing with Calvert Cliffs response as early as practicable and well in advance of'their l
inclusion in final draft or completed reports; 2.
Review and take appropriate action on timely coments received from Calvert Cliffs staff on study results; 1
3.
The RELAPS results for each major transient analyzed including both input data and calculated results; 4.
Critical safety function response trees and operator sequence diagrams developed for Calvert Cliffs for the transients analyzed;
}
5.
Appropriate supporting documentation developed and documented by EG&G Idaho as part of this NRC project, especially that related to quality assurance of the models developed.
01/15/87 1
NRC AGREEMENT W/CALVERT CLIFF
l
'l l.
JAN 2 01987 Docket Nos. 50-317 and 50-318
)
.3 i
Mr. J. A. Tiernan Vice President-Nuclear Energy Baltimore Gas & Electric Company P. O. Box 1475 Baltimore, MD 21203
Dear Mr. Tiernan:
SUBJECT:
NRC DEVELOPMENT OF RELAPS MODEL OF CALVERT CLIFFS FROM EXISTING TRAC MODEL To facilitate completion of an NRC_ study supporting reevaluation of B&W plant safety, it is necessary for our staff to develop RELAPS analysis models of the three different PWR vendor plants to compare their plant responses and the demands placed'on safety equipment and operating staff for comparable plant transients.
In a discussion held on January 14,1987 tetween the NRC and Messrs. Steve Mirsky and Alex Marion of your staff, we agreed to cooperate to facilitate the completion of this study as described in'the enclosure.
Your cooperation, which is vital for the proper completion of this study, is greatly appreciated.
Sincerely, i
U{gtnal34}n00 i
Scott Alexander McNeil, Project Manager PWR Project Directorate #8 Division of PWR Licensing-B
Enclosure:
NRC/BG&E RELPA5 Memorandum of Cooperation cc w/ enclosure:
See next page DISTRIBU1 ION ACRS-10 Docket File BGrimes NRC POR JPartlow L POR SMcNeil P80-8 Rdg PKreutzer FMiraglia Gray File.
OGC-Bethesda NThompson EJordan 0Solberg PBO#
PBD#8 PBD#8 zer SM
'l AThadani y,/87 U/ 7 14b/87 7Chd f
{:H
-[f
r s
l itr. 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, Heryland 20768 for Operations-631 Park Avenue D. A. Brune, Esq.
King of Prussia, Pennysivania 19406 General Counsel Baltimore Gas and Electric Company P. O. Box 1475 Baltimore, Maryland 21203 Jay E.'Silberg Shaw, Pittman, Potts and Trowbridge 2300 N Street, N.W.
Washington, DC 20037 Mr. N. E. Bowman, General Supervisor Technical Services Engineering i
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 15740 Shady Grove Road Gaithersburg, Maryland 20760 Combustion Engineering, Inc.
ATTN: Mr. W. R. Horlacher, III Project Manager P. O. Box 500 1000 Prospect Hill Road I
Windsor, Connecticut 06095-0500 Department of Natural Resources Energy Administration, Power Pldnt Siting Progrcm j
ATTN: Mr. T. Hagette Tawes State Office Building Annapolis, Maryland 21204 u-- - --- ---
NRC/BG&E RELAP5 MEMORANDUM 0F COOPERATION-The NRC staff understands that BG&E agrees to provideNRC with the following:
1.
Agreement that the NRC staff may construct a RELAPS model of Calvert Cliffs from an existing ~ TRAC model; 2.
A current copy of the Calvert Cliffs emergency operating procedure (EOP) by January 21, 1987; 3.
Discussions among NRC contractors (EG&G, Idaho) and Calvert Cliffs operations staff to obtain clarification and detailed information needed on pla't operations and design.
This will be limited to-n 16 man-hours of Calvert Cliffs operating staff time.
NRC agrees to' take the following actions:
1.
Provide BG&E with the following:
Study results and draft report sections dealing with Calvert Cliffs et.
response as early as practicable and well in advance of their inclusion in final draft or completed reports:
b.
The RELAP5 results of one run of each major. transient analyzed' including both input data and calculated results; Critical safety function response trees and operator sequence c.
diagrams developed for Calvert Cliffs for the transients analyzed; d.
Appropriate supporting documentation developed and documented by EG&G Idaho as part of this NRC project, especially that which related to quality assurance of the models developed.
2.
Review and take appropriate action on timely comments received from Calvert Cliffs staff on study results.
l 1
i y
i 1
1