ML19260D206
| ML19260D206 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood  |
| Issue date: | 01/18/1980 |
| From: | Moon C Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8002080109 | |
| Download: ML19260D206 (4) | |
Text
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0, UNITED STATES
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NUCLEAR REGULATORY COMMISSION 3
C WASHINGTON, D. C. 20555
,/
JAN 18 :950 Docket Nos.:
STN 50-454/455 STN 50-456/457 APPLICANT:
Comonwealth Edison Company
SUBJECT:
SUMMARY
OF MEETING HELD ON DECEMBER 20, 1979, AT ARG0NNE NATIONAL LABORATORY, TO DISCUSS INFORMATION DEFICIENCIES IN THE FINAL SAFETY ANALYSIS REPORT, CHAPTER 7.0, INSTRUMENTATION AND CONTROL - BYRON AND BRAIDWOOD STATIONS INTRODUCTION In its letter of October 20, 1978 to the applicant, "Results of Byron and Braidwood Acceptance Review", the NRC staff did not include requests for additional information for instrumentation and controls. Subsequent review by the Argonne National Laboratory determined that correction of informa-tion deficiencies in Chapter 7.0, Instrumentation and Controls, of the Final Safety Analysis Report (FSAR), was desirable to facilitate the ensu-ing detailed technical review. The meeting was held to facilitate communication of these deficiencies to the applicant.
A list of meeting attendees is shown in the enclosure.
GENERAL Westinghouse is responsible for initiating information in Sections 7.2, 7.4, 7.5 and 7.7 of the FSAR, Sargent and Lundy is responsible for initiat-ing information in Sections 7.3 and 7.6, and the two are jointly responsible for initiating information in Section 7.1.
Many terms used in Section 7.0 of the FSAR, e.g., " reproducibility",
" accuracy", " range", " span", " repeatability", " error" are not completely defined and are not used in a cons. stent manner. Some are defined in Westinghouse Topical Reports that are not referenced in the FSAR.
DETAILS Some of the numerous details diccussed are listed here.
(1)
Westinghouse and the applicaat will modify the FSAR to clarify similarities to and differences from the nuclear steam supply systems 1942 233 8002 8o /// [
h 0
JAN1E 9 proposed for the Standardized fluclear Unit Power Plant System (SNUPPS), or compare Byron and Braidwood with other nuclear steam supply systems if the Byron and Braidwood review continues to pre-cede the SNUPPS review.
(2)
Confusion exists by. the apparent interchangeable use of " interlocks" and "permissives".
Where permissives are numbered, e.g., P-1, P-2,....., no attempt is made to assure that all numbers in a sequence are used. All permissives should be listed in Table 7.3-1 or Table 7.2-2.
(3)
Conduit details are needed for the review of fire protection measures.
(4)
Specific design information is needed for overcurrent devices.
(5)
More detailed control room layout information is needed.
There are no control boards in containment.
(6)
Comonwealth plans to operate Byron and Braidwood as base loaded units.
(7)
Bypassed and inoperable status - there is a lack of reference to Regulatory Guide 1.47 and of a showing of how conformity with the Regulatory Guide is established.
(8)
Following a question as to whether manual trip would be prevented following a power loss, Westinghouse and the applicant agreed to pro-vide information on the signal input from manual trip.
(9)
The reviewer will review Chapter 5-0 to determine whether there is sufficient information en coolant temperature sensor manifolds.
(10) Ques": ens cn thermal power measurement and on reactor power loop deica-temperature will be fonvarded to the aon ant.
(11)
Information deficiencies not corrected by amendments to the FSAR will be identified by first round questions.
[jn W:f'/!:w C. W. Moon, Project Manager Light Water Reactors, Branch No. 4 Division of Project Management
Enclosure:
As Stated cc:
See next page 1942 234
Commonwealth Edison Conpany CCs:
Mr. William Kortier Mr. D. l.ouis Peoples Atomic Power Distribution Director of Nuclear Licensin Westinghouse Electric Corporation Commonwealth Edison Company D. O. Box 355 P. O. Box 767 Pittsburgh, Pennsylvania 1523u Chicago, Illinois 60690 Paul M. Murphy, Esq.
Isham, Lincoln & Beale One First 'lational Plaza 42nd Floor Chicago, Illinois 60603 Mrs. Phillip B. Johnson 1907 Stratford Lane Rockford, Illinois 61107 Ms. Julianne Mahler Center for Governmental Studies torthern Illinois University DeKalb, Illinois 60115 C. Allen Bock, Esq.
P. O. Box 342 Urbana, Illinois 6180!
Thonas J. Gordon, Esq.
Waaler, Evans 3 Cordon 2503 S. Neil Champaign, Illinois 61820 Ms. Bridget Little Rorem Appleseed Coordinator 117 North Linden Street Essex, Illinois 60935 1942 235
ENCLOSURE DECEMBER 20, 1979 MEETING ATTENDANCE LIST CECO Ishim, Lincoln & Beale L. Bowen A. Bielawski J. Dennehy ANL S&L J. Mech D. J. Cardinale J. Elsbergas G. Sensmeier G. Popper E. R. Crass DAARE Westinghouse A. Meyer F. W. Marasco E. Johnson M. Oper J. C. Connor NRC C. W. Moon 1942 236