ML20151H904
| ML20151H904 | |
| Person / Time | |
|---|---|
| Site: | 05000000, Byron |
| Issue date: | 11/07/1983 |
| From: | Olshan L Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20151H271 | List: |
| References | |
| FOIA-88-344 NUDOCS 8312070100 | |
| Download: ML20151H904 (5) | |
Text
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Docket flos.:
STN 50 454 ggy 7 q "as and STN 50-455 APPLICANT:
Comonwealth Edison Company FACILITY:
BYRON STATION, UNITS 1 and 2
SUBJECT:
SUMMARY
OF MEETING ON BYRON FIRE PROTECTION PROGRAM the NRC staff met with Comonwealth Edison (CECO)
On October 28,1983,(S&L) to discuss the Byron Fire F".tection Program.
and Sargent & Lundy is a list of the meeting attendees.
During July 1983 the NRC and its consultant conducted its Fire Protection Site Audit of Byron and. documented its findings in an August 3, 1983 letter to CECO.
The CECO response, dated September 20, 1983, did not satisfactorily address the staff's concerns in several instances.
In conference calls of September 27, 1983 and October 21, 1983, CECO comitted to alter its response in many areas. CECO agreed to make several plant modifications, including installation of a reactor coolant pump oil collection system which complies with Section !!!.0 of Appendix R, installation of curbs in the diesel-generator rooms, and installation of 8-hour battery powerec emergency lighting in the Essential Safety Features Switchgear Room.
Pending receipt of a CECO letter documenting its comitments, all but two concerns are considered resolved.
5 Jhe primary purpose of the meeting was to discuss the two unresolved concerns:
ynprotected structural steel (Concern No. 8 in the staff's August 3,1983 letter) and separation of redundant trains of shutdown related cabling and equipment (Concern No. 18). Among its arguments for the unprotected structural steel, CECO cited the low combustible loadings in the areas, the administrative controls over transient combustibles, the conductive heat transfer properties of the steel which tend to distribute the heat, and the unlikelihood of the steel reaching a sufficient temperature, for a sufficient time, to collapse.
CECO's argumants in defending its existing configuration of separation of redundant safe shutdown cabling and equipment included:
(1) available test data on the combustibility of cables do not apply to the Byron design because most of propagation in the tests was in the vertical direction and the Byron configuration would require mostly horizontal propagation; (2) Byron has EPR hyperlon cabling and solid bottom trays, (3) CECO believes it has instituted effective administrative controls over transient combustibles.
The NRC staff did not accept CECO's arguments and urged CECO to implement nodifications to satisfy the staff's concerns. The staff re-emphasized that resolution of their concerns regarding the protectien of safe shutdown systems i
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wo0ld entail installing automatic fire protection systems and/or providing 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> fire rated barriers around one shutdown division.
- hose instances where the specific requirement of Section III.G.2 of Appsac
- Are not ret CECO would have to provide a detailed description of the dev' ' ion.
The applicant is considering either appealing to higher management or proposing, and implementing fire protection modifications that are acceptable to the staff.
However, the staff indicated that it could issue a license for fuel load without the modifications being completed if CECO would provide adequate justification for this approach, but it is unlikely that the plant would be allowed to go above 5% power with the current configuration.
Odginal Signed BW t., N. Olshan L. Olshan, Project Manager Licensing Branch No. 1 Division of Licensing
Enclosure:
As stated cc: See next page l
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CONCURRENCES:
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.V LOl shan:es B Youngblood 11/04/83 11/[/83 i
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ENCLOSURE 1 FIRE PROTECTION MEETING 01TOBER 28,1983 MEETING ATTENDEES Comonwealth Edisnn_
K. A. Ainger T. R. Tram J. T. Westemeier Sargent & Lundy E. R. Crass L. Cypranowski K. J. Green W. B. Paschal l
J. D. Regan NRC V. Benaroya R. L. Ferguson
- 0. J. Kubicki 3
- t. N. Olshan Gage-Babcock (NRC Consultant)
R. Barnes I
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Mr. Dennis L. Farrar Director of Nuclear Licensing Coir.onwealth Edison Company Post Office Box 767 Chicago, Illinois 60690 cc: Mr. William Kortier Ms. Diane Chavez Atomic Power Distribution 326 N. Avon Street
' Westinghouse Electric Corporation Rockford, Illinois 61103 Post Office Box 355 Pittsburgh, Pennsylvania 15230 Mr. James G. Keppler U. S. Nuclear Regulatory Cortnission Michael Miller Region !!!
Isham, Lincoln & Beale 799 Roosevelt Road One First National Plaza Glen Ellyn, Illinois 60137 42nd Floor Chicago, Illinois 60603 Joseph Gallo, Esq.
1 Isham, Lincoln & Beale Mrs. Phillip 8. Johnson Suite 840 1907 Stratford Lane 1120 Con'necticut Avenue, N. W.
Rock fort, Illinois 61107 Washington, D. C. 20036 Dr. Bruce von Zellen Doug Cassel Esq.
Department of Biological Sciences Jane Whicker, Esq.
Northern Illinois University 109 N. Dearborn Street
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DeKalb, Illinois 61107 Chicago,11Tinois 60602 t.
Mr. Edward R. Crass Ms. Pat Morrison Nuclear Safeguards & Licensing 5568 Thunderidge Drive Sargent & Lundy Engineers Rockford, Illinois 61107 55 East Monroe Street Chicago, Illinois 60603 David C. Thomas, Esq.
77 S. Wacker Drive Mr. Julian Hinds Chicago, Illinois 60601 U. S. Nuclear Regulatory Commission Byron / Resident Inspectors Offices 4448 Geman Church Road Byron, Illinois 61010 i
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