ML20212A097
| ML20212A097 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 07/21/1986 |
| From: | Bailey J GEORGIA POWER CO. |
| To: | Youngblood B Office of Nuclear Reactor Regulation |
| References | |
| GN-1007, NUDOCS 8607280111 | |
| Download: ML20212A097 (8) | |
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Georgia Rmer Company Pbst Offica Box 282 Waynesboro, Georgia 30830 Telephone 404 554-9961 404 724-8114 Southern Company Services,Inc.
Pbst Office Box 2625 Birmingham, Alabama 35202 Telephone 205 8706011 Vogtle Project July 21, 1986 Director of Nuclear Reactor Regulation File: X7BC35 Attention:
Mr. B. J. Youngblood Log:
GN-1007 PWR Project Directorate #4 Division of PWR Licensing A U. S. Nuclear Regulatory Commission Washington, D.C.
20555 NRC DOCKET NUMBERS 50-424 AND 50-425 CONSTRUCTION PERMIT NUMBERS CPPR-108 AND CPPR-109 V0GTLE ELECTRIC GENERATING PIANT - UNITS 1 AND 2 SER OPEN ITEMS 7 & 8:
FIRE PROTECTION i
Dear Mr. Denton:
i As requested by your staff, I am attaching a synopsis of the changes made to FSAR Appendix 9B, comparison of VEGP to BTP CMEB 9.5-1, as presented in Amendments 23 and 24, i
If your staff requires any additional information, please do not hesitate to contact me.
Sincerely, l
J. A. Bailey Project Licensing Manager i
JAB /sm Attachment xc:
R. E. Conway NRC Regional Administrator j
R. A. Thomas NRC Resident Inspector J. E. Joiner, Esquire D. C. Teper B. W. Churchill, Esquire W. C. Ramsey l
M. A. Miller (2)
L. T. Gucwa B. Jones, Esquire Vogtle Project File i
G. Bockhold, Jr.
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Attachment Amendment 23 Technical Changes to Section 9.5.1 and Appendix 9B 1.
Clarified the safe and alternate shutdown evaluation methodology:
a.
Defined the methodology of the analysis.
Paragraph 9.5.1, page 9.5.1-2 Paragraph 9.5.1.3.H Assumption A, page 9.5.1-26a Paragraph 9.5.1.3.H Assumption E, page 9.5.1-28 Table 9.5.1-1 Table 9.5.1-3 Table 9.5.1-4 Appendix 9B Section C.S.b.(1), page 9B-48 b.
Clarified that deviations with regard to the existence of fire detection and supression systems.in a fire area where separation of safe shutdown trains is dependent on distance or 1-hour rated barriers will be justified.
Paragraph 9.5.1.2.1.1, page 9.5.1-8 Appendix 9B Section C.5.b.(2), page 9B-49 c.
Clarified that radiant energy shields will be employed to achieve safe shutdown train separation inside the containment building.
Paragraph 9.5.1.2.1.1, page 9.5.1-8 Appendix 9B Section C.5.b.(2), page 9B-49 1
d.
Clarified that alternate shutdown capability is provided which is independent of the fire area under considera-tion when separation cannot be achieved through the use of barriers or distance.
Paragraph 9.5.1.2.1.1, page 9.5.1-8 Appendix 9B Section C.5.b.(2), page 9B-49 Appendix 9B Section C.S.c, page 9B-50 Appendix 9B Section C.5.c.(3), page 9B-53 e.
Clarified the VEGP position regarding operator actions prior to manning the remote operating stations in the event of a control room fire.
Appendix 9B Section C.S.c.(1), page 9B-51 f.
Clarified the VEGP position regarding the availability of process monitoring systems.
Appendix 9B Section C.5.c.(2), page 9B-53 g.
Clarified the methodology used in the VEGP associated circuits analysis including identification of major assumptions used in the analysis and the bases for acceptability of two unique concerns:
o 120V-ac vital bus loss of voltage o Simultaneous centrifugal charging pump damage Appendix 9B Section C.5.c.(7), page 9B-55 2.
Deleted reference to the existence of fire suppression systems inside the containment building (charcoal filtration units excepted).
Paragraph 9.5.1.1.1, page 9.5.1-2 2
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r Paragraph-9.5.1.2.1.1, page 9.5.1-7 Paragraph 9.5.1.3.F. page 9.5.1-25 Appendix 9B Section C.S.d.(1)(c), page 9B-59 Appendix 9B Section C.5.e.(2), page 9B-62 Appendix 9B Section C.7.a.(1), page 9B-84 3
Clarified the VEGP position with regard to the nonrated exterior building wall, roof and basemat fire area boundary barriers.
Paragraph 9.5.1.2.1.2, page 9.5.1-8 Paragraph 9.5.1.3A, page 9.5.1-23 Paragraph 9.5.1.3H Assumption G, page 9.5.1-28a Appendix 9B Section C.5.a.(1), page 9B-32 4.
Updated the information regarding the oversize fire dampers installed in rated fire area boundary barriers.
Paragraph 9.5.1.2.1.2, page 9.5.1-9 (deleted text)
Appendix 9B Section C.5.a.(4), page 9B-35 (added updated text) 5.
Deleted the commitment to identif'y the number and size of floor drains in each fire area presented in the fire hazards analysis.
This informatio'n is included in the VEGP flooding analysis.
Paragraph 9.5.1.2.1.3, page 9.5.1-10 6.
Deleted reference to the use of fire stops ir cable trays.
VEGP uses penetration seals at all rated fire barriers.
Paragraph 9.5.1.2.1.4, page 9.5.1-11 7.
Clarified the VEGP position with regard to the impact of inadvertent operation of fire suppression systems.
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Paragraph 9.5.1.2.1.4, page 9.5.1-12 Paragraph 9.5.1.2.2.9, page 9.5.1-17 Appendix 9B Section C.1.b, page 9B-13 8.
Clarified the interval distance between yard hydrants.
Paragraph 9.5.1.2.2.4.C, page 9.5.1-14 Appendix 9B Section C.6.b.(7), page 9B-76 9
Clarified the description of the power supplies for the fire detection system.
Paragraph 9.5.1.2.3.1.B.
page 9.5.1-19 Paragraph 9.5.1.2.3.1.F, page 9.5.1-20
- 10. Revised the description of the information that will be included in the fire hazards analysis (Appendix 9A).
Paragraph 9.5.1.2.1.3, page 9.5.1-10 Paragraph 9.5.1.3.H, page 9.5.1-25 Appendix 9B Section C.S.c.C3), page 9B-35
- 11. Clarified the VEGP methodology for quantification of combustible loadings.
Paragraph 9.5.1.3.H Assumption B, page 9.5.1-27 Paragraph 9.5.1.3.H Assumption C, page 9.5.1-27a Appendix 9B Section C.1.b, page 9B-10
- 12. Clarified the testing performed on the fire pumps.
Paragraph 9.5.1.4, page 9.5.1-30
- 13. Clarified that most of the exceptions to NFPA 14 are not applicable because of the specific class of system used at VEGP.
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Table 9.5.1-9 sheets 4 and 5
- 14. Clarified the VEGP position regarding smoke removal capabilities.
Appendix 9B Section C.1.b, page 9B-13 App.endix 9B Section C.5.f.(3), page 9B-67
- 15. Clarified the VEGP position regarding the use of rated fire barriers for separation of safety-related systems and components.
Appendix 9B Section C.5.a.(1), page 9B-31 Appendix 9B Section C.S.e.(2), page 9B-61
- 16. Clarified the VEGP position regarding the method for sealing of conduits to preclude the passage of smoke and hot gasses.
Appendix 9B Section C.S.a.(3), page 9B-34
- 17. Clarified the VEGP position regarding caulking the fire damper sleeve to barrier opening in negative pressure boundary fire barriers.
Appendix 9B Section C.5.a.(4), page 9B-42
- 18. Clarified the VEGP position on use of " certified" (unlabeled) and normally open fire doors in fire area boundary barriers.
Appendix 9B Section C.5.a.(5), page 9B-43
- 19. Clarified the use of neoprene jacketed cables.
Appendix 9B Section C.5.d.(3), page 9B-60
- 20. Clarified where line-type fire detection is used at VEGP.
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s Paragraph 9.5.1.2.1.4.A. page 9.5.1-11 Appendix 9B Section C.7.a.(1)(c), page 9B-85
- 21. Updated the FSAR to reflect the VEGP position regarding smoke detection in the main control room.
Appendix 9B Section C.7.b. page 9B-89
- 22. Justified not providing fire detection in two raised floor sections in the main control room.
Appendix 9B Section C.7.b, page 9B-90
- 23. Clarified the existence of the fuel oil day tanks inside the diesel generator buildings.
Appendix 9B Section C.7.j, page 9B-95
- 24. Clarified the VEGP position on fire hose test.
Appendix 9B Section C.6.c.(6), page 9B-82
- 25. Clarified that other than gate valves may be used to terminate suppression system operation.
Paragraph 9.5.1.2.2.9, page 9.5.1-17 Paragraph 9.5.1.2.2.10, page 9.5.1-17a
- 26. Clarified room isolation for Halon 1301 suppression areas.
Paragraph 9.5.1.2.2.11, page 9.5.1-17a l
- 27. Identified that underground main and lead-in piping will be flushed in accordance with VEGP procedures.
Table 9.5.1-9, sheet 2 of 16 l
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- 28. Referenced to Appendix 9B for a comparison of VEGP s
conformance with the guidelines of BTP CMEB 9.5-1.
Paragraph 9.5.1.1.6, page 9.5.1-5
- 29. Deleted the discussion of valve supervision in the fire detection system discussion.
Valve supervision is addressed in Appendix 9B Section C.6.c.(2), page 9B-78.
Paragraph 9.5.1.2.3.2, page 9.5.1-20
- 30. Clarified the VEGP interface with the local fire department.
Appendix 9B Section C.3.d.(7)(d), page 9B-27
- 31. Deleted reference to a description of deviations from NFPA publications used for guidance in development of the fire protection program being presented in Section 9.5.1.
Appendix 9B Section C.1.a.(6), page 9B-10 7
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