ML20054L813
| ML20054L813 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 07/01/1982 |
| From: | Head G GEORGIA POWER CO. |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20054L814 | List: |
| References | |
| GL-81-12, TAC-43754, TAC-43755, TAC-48071, TAC-48072, NUDOCS 8207080500 | |
| Download: ML20054L813 (263) | |
Text
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w, Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.
20555 NRC DOCKETS 50-321, 50-366 OPERATING LICENSES DPR-57, NPF-5 l
EDWIN I. HATCH NUCLEAR PLANT UNITS 1, 2 SUPPLEMENTAL RESPONSES TO 10 CFR 50.48 Ato APPENDIX R TO 10 CFR 50 Gentlemen:
s The PC's letter of February 20, 1981, requested certain information relative to 10 CFR 50.48 and Appendix R to 10 CFR 50.
Georgia Power Company (GPC) submitted portions of the requested infomation on March 19, 1981 and May 18, 1981.
The remaining information and GPC's detailed submittal on compliance with and requested exemption from 10 CFR 50.48 and Appendix R to 10 CFR 50 are attached as Enclosures 1 through 4 to this letter.
One of the exemptions requested is an exemption from the schedule imposed by 10 CFR 50.48.
While we recognize that certain of our proposed modifications (i.e., cable wrapping) could be perfomed prior to receipt of WC approval, we also recognize that mC could reject certain of our exemption requests. Under these conditions, the work performed prior to NRC approval may be in vain.
It is for this reason, as well as those stated in Section 2.6 of Enclosure 3, that GPC is requesting an exemption from not only the schedule of 10 CFR 50.48, but, from the concept in 10 CFR 50.48 C.5 that work should proceed prior to NRC approval.
The proposed schedule in Enclosure 3 is based upon the performance of l
only the proposed modifications.
Also, since Plant Hatch presently has an approved fire protection
- plan, the implementation of the proposed l
modifications does not warrant a special outage to accomplish.
Should additional work be mandated by the NRC, the schedule may require modifications.
The preparation of the attached reports on Appendix R to 10 CFR 50 has constituted a major engineering effort within GPC and our architect engineers.
As the engineering design proceeds, it is possible that new information and insights will be obtained concerning fire safety at Plant Hatch.
Should such new data become available, the attached analyses will be revised as necessary in a timely manner.
9 0
I 8207080500 820701 PDR ADOCK 05000321 l
F PDR
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Georgia Power n Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.
20555 July 1, 1982 Page Two GPC recognizes the complexity of the task facing the NRC staff in reviewing this submittal.
To facilitate the review and avoid unnecessary j
misunderstanding, GPC management is prepared to meet with the management of the NRC staff to clarify our positions and settle any difficulties that may exist.
Should you have any questions or comments with regard to this submittal, please contact this office.
G.
F.
Head states that he is a Senior Vice President of Georgia Power Company and is authorized to execute this oath on behalf of Georgia Power Company, and that to the best of his knowledge and belief the facts set forth in this letter are true.
EORGIA POWER COMPANY By:
.J //sh G. F. Head Sworn t and subscribed b fore me his 1st day of July, 1982
//
Notary Public. Gr*gia, State at Large j
~gy,
/JM, My corumission Expires Sept. 20.1983 i
/
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hotary Public JAE/RLK/mb Enclosure (1) Supplemental Response to NRC Letter of February 20, 1981,, Section 8.
(2) Response to Enclosure 2 of NRC Letter of February 20, 1981.
(3) Response to 10 CFR 50.48 and Appendix R to 10 CFR 50.
(4) Fire analysis for Hatch Unit 2 Vital DC cabinets.
xc:
H. C. Nix R. F. Rogers, III J. P. O'Reilly (NRC-Region II) 1
.. _ =..-.
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ENCLOSURE 1 i
RESPONSE TO ENCLOSURE 1 SECTION 8 OF THE j
U.S.N.R.C.
FEBRUARY 20, 1981 LETTER ON THE SUBJECT OF FIRE PROTECTION RULE 45 FR 76602, NOV. 19, 1980 i
SUPPLEMENTAL TO THE j
MAY 18, 1981 SUBMITTAL i
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l July 1, 1982 l
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UNIT 1 RESPONSE 8(a)
Proposed Modifications - To provide for improved remote shutdown capability it is proposed that the following equip-ment be added to the Remote Shutdown System and controlled through the Remote Shutdown Panels:
(1)
E11-F017B LPCI Injection Valve (2)
E11-F007B LPCI Min. Flow Valve (3)
E11-N021B LPCI Min. Flow Switch UNIT 2 RESPONSE Proposed Modifications - To provide for improved remote shutdown capability it is proposed that the following equip-ment be added to the Remote Shutdown System and controlled through the Remote Shutdown Panels:
(1) 2E11-F007B LPCI Min. Flow Valve (2) 2E11-N021B LPCI Min. Flow Switch UNIT 1 RESPONSE 8(c)
Remote Shutdown Panel H21-P175 has appropriate seismic qualification.
Document C-S-100.0 is available for your review.
UNIT 1 AND 2 RESPONSE 8(j)
Proposed Technical Specification Changes - The Technical Specifications will be revised to allow for testing of the remote shutdown equipment from the Remote Shutdown Panels.
The frequency of testing will be such that every third scheduled test is performed from the Remote Shutdown Panel.
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ENCLOSURE 2 RESPONSE TO ENCLOSURE 2 SECTION 1 OF THE U.S.N.R.C.
FEBRUARY 20, 1981 LETTER ON'THE SUBJECT OF FIRE PROTECTION RULE 45 FR 76602, NOV. 19, 1980 (Generic Letter 81-12) l l
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July 1, 1982 i
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Item I.
ALTERNATIVE SHUTDOWN INFORMATION UNIT 1 RESPONSE (SHEET 1 OF 3)
A.
Essential Cables Equipment and In Fire Areas Instrumentation E11-F004B R24-S012-ES8-C27A E11-F006B R24-S012-ES8-C29A E11-F024B R24-S012-ES8-C47A, R24-S012-ES8-C47B E11-F027B R24-S012-ES8-C51A, R24-S012-ES8-C51B E11-F048B R24-S012-ES8-C57A, R24-S012-ES8-C57B E11-F028B R24-S012-ES8-C53A, R24-S012-ES8-C53B E11-F015B R24-S018-ES8-C07A, R24-S018-ES8-C07B, R24-S018-ES8-C07C, R24-S018-ES8-C07D E11-F008 R24-SO22-ES8-C18A, R24-S022-ES8-C18B E11-FOO9 R24-S011-ES7-C29A, R24-S011-ES7-C29B, R24-5011-ES7-C29C E11-C001B R22-SOO7-ES8-C01, R22-S007,ES8-C01A' E11-C001D R22-S007-ES8-C02, R22-S007-ES8-C02A E11-C002B R22-S007,ES8-C05, R22-S007-ES8-COSA, R22-S007-ES8-C05K E51-F045 R24-SO21-ES7-C16A, R24-SO21-ES7-C16B E51-F046 R24-S021-ES7-C15A, R24-SO21-ES7-C15B E51-F013 R24-SO21-ES7-C10A, R24-SO21-ES7-C10B E51-F008 R24-S021-ES7-C11A, R24-SO21-ES7-C11B, R24-S021-ES8-C11C E51-F007 R24-S012-ES8-C17M, R24-S012-ES8-C17R, R24-S012-ES8-C17N, R24-S012-ES8-C17P i
(E51-C002-TTT)
R24-S021-ES7-C21A i
E51-COO 2-1 R24-SO21-ES7-C05, R24-SO21-ES7-C05A E51-C002-2 R24-SO21-ES7-C06, R24-SO21-ES7-C06A B31-F023B R24-S018-ES8-C13A B21-F013D H11-P602-ES7-C148, H11-P628-ES7-C048 B21-F013G H11-P602-ES7-C149, H11-P62,8-ES7-C009 B21-LIT-N070 No Cables in Fire Area B21-LI-R070 No Cables in Fire Area C32-PT-N070 No Cables in Fire Area C32-PI-R070 No Cables in Fire Area R23-S003-FR7M R23-S003-ES7-C14 i
R22-SOO6-FR6(ACB 135912)
H11-P652-ESB-C23, H11-P652-ESB-C23H l
R22-5006-FR8 R22-SOO6-ES8-C06, R22-S006-ES8-C06A R22-S007-FR2 R22-S007-ES8-C01A R22-S007-FR3 R22-S007-ES8-C02, R22-S007-ES8-C02A R22-S007-FR4 R22-S007-ES8-CO3 R22-S007-FR7 R22-S007-ES8-C05, R22-S007-ES8-C05A, R22-S007-ES8-C05K R22-S007-FR6(ACB 135913)
H11-P652-ESC-C28 R22-S007-FR7(ACB 135719)
H11-P652-ES8-C32 R23-S004-FR9(ACB 135814)
H11-P652-ES8-C30, H11-P652-ES8-C30A 1
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UNIT 1 RESPONSE (SHEET 2 0F 3)
A.
Essential Cables l
Equipment and In Fire Areas i
Instrumentation R23-S004-FR8T No Cables in Fire Area R23-S004-FR8M No Cables in Fire Area R23-S004-FR8B No Cables in Fire Area R23-S004-FR6M R23-S004-ES8-C14 i
R22-S017-FR4T No Cables in Fire Area l
R22-S017-FR4B No Cables in Fire Area R22-S017-FR2T R22-S017-ES8-C26 R24-S018B-FR18A R24-S018-ES8-C44 R23-S004-FR3M No Cables in Fire Area R25-S037-BRKR14 No Cables in Fire Area I
R22-S017-FR3M No Cables in Fire Area R22-S016-FR3M No Cables in Fire Area i
R23-S003-FR3M No Cables in Fire Area R25-S036-BRKR15 No Cables in Fire Area
- E11-F017B R24-S018-ES8-C04A, R24-S018-ES8-C04B, R24-S018-ES8-C04D
- E11-F007B R24-S012-ES8-C31A, R24-S012-ES8-C31C
- E11-N021B' H11-P618-ES8-C007 E11-FT-N070 No Cables in Fire Area E11-FI-R070 No Cables in Fire Area
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E51-FT-N070 No Cables in Fire Area E51-FI-R070 No Cables in Fire Area P41-C001B R22-S007-ES8-CO3
)
C11-C001A R22-S005-ES7-C06, R22-S005-ES7-CO6A C11-C001B R22-S006-ES8-C06, R22-S006,ES8-C06A T47-TE-NC70 No Cables in Fire Area T47-TI-R070 No Cables in Fire Area T47-TE-N071 No Cables in Fire Area T47-TI-R071 No Cables in Fire Area T47-TE-N072 No Cables in Fire Area l
T47-TI-R072 No Cables in Fire Area 2T47-TE-N073 No Cables in Fire Area 2T47-TI-R073 No Cables in Fire Area T48-TE-N072 No Cables in Fire Area T48-TI-R072 No Cables in Fire Area T48-TE-N073 No Cables in Fire Area i
T48-TI-N073 No Cables in Fire Area 3
T48-LT-N070 No Cables in Fire Area T48-LI-R070 No Cables in Fire Area T48-PI-RO71 No Cables in Fire Area i
T48-PT-N071 No Cables in Fire Area E11-FT-N071 No Cables in Fire Area E11-FI-R071 No Cables in Fire Area
- Note:
These components to be added as proposed in Section 8(a) of this enclosure.
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UNIT 1 RESPONSE ( SHEET 3 OF 3 )
A.
Essential Cables Equipment and In Fire Areas Instrumentation R22-S005-FR5(ACB 135911)
H11-P652-ESA-C08, H11-P652-ESA-C08H R22-S005-FR10(ACB 135717)
H11-P652-ES7-C01 R22-S005-FR8 R22-S005-ES7-C06, R22-S005-ES7-C06A R23-5003-FR2M(ACB 135811)
H11-P652-ES7-C04, H11-P652-ES7-C04A R23-S003-FR6B No Cables in Fire Area R23-S003-FR6M No Cables in Fire Area R23-S003-FR6T No Cables in Fire Area R22-S016-FR4T No Cables in Fire Area R22-S016-FR2B No Cables in Fire Area 3
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UNIT 2 RESPONSE (SHEET 1 OF 3)
A.
Essential Cables Equipment and In Fire Area Instrumentation 2E11-C002B EAE888C06, EAE888C04, EAE888C05 2E11-F004B EAE844C01, EAE844C04 2E11-F006B EAE846C01, EAE846C04 2E11-F047B EAE848C01
)
2E11-F026B EAE854CO2, EAE854C01 2E11-F011B EAE855CO2, EAE855C01 2E11-F024B EAE851CO2, EAE851C01 1
2E11-FOl6B EAE857CO2, EAE857C01 2E11-F027B EAE852CO2, EAE852C01 2E11-F003B EAE849C01 2E11-F048B EAE856CO2, EAE856C01 2E11-F015B EAE858C04, EAE858CO3, EAE858C01, EAE858CO2 2
2E11-F017B EAE861C04, EAE861CO3, EAE861C01 2E11-F023 AAE818C01, AAE808C01 2E11-FOO9 AAE717C01, AAE706C01, AAX717C05 2E11-F073B EAE880C01 2E11-F028B EAE853CO2, EAE853C01 2E11-FOO6D EAE847C01, EAE847C04 2E11-F008 AAE823C01, AAE823CO2, AAX823C05 2E11-FOO6A EAE720C01, EAE720C04 4
2E11-F006C EAE721C01, EAE721C04 2E11-C001B EAE884CO2, EAE884C07 l
2E11-C001D EAE886CO2, EAE886C07 2E11-F0918 EAE871C01, EAE871CO2 2E51-F007 EEE805C14, EEE805C13, EEX805C12 1
2E51-FOO8 EEE706CO3, EEE706C01, EEX706CO2 2E51-F010 EEE708C01, EEE708CO2 2E51-F019 EEE716CO3, EEE716CO2, EEE716C01 2E51-F029 EEE714C01 2E51-F022 EEE717CO2, EEE717C06, EEE717C01 2E51-F012 EEE709C01, EEE709CO2 l
2E51-F013 EEE710C01, EEE710CO2 2E51-F045 EEE712C01, EEE712CO2 2E51-F046 EEE713C01, EEE713C02 2E51-F031 EEE711C01 2E51-C002-TTT EEE715C01, EEE701C16 i
2E51-C002-2 EEE719C01, EEE719CO2 2E51-C002-1 EEE720C01, EEE720CO2 2E51-C002-B EEE918C23, EEE718C21, EEE718C26, EEE918C17, EEE918C18, EEE918C12, EEE918C06, EEE718M02, EEE918C24, l
EEE918C13, EEE718M01, EEE718C25, EEE718C19, EEE918C07, EEE918C08, EEE918C09, EEE918C10, EEE918C11, EEE918C04, EEE918CO3, EEE918CO2, EEE918C05 4
I UNIT 2 RESPONSE (SHEET 2 0F 3)
A.
Essential Cables Equipment and In Fire Area Instrumentation 2B31-F023B BHX815C01 2B21-F013D BCE708CO2, BCE702C06 2B21-F013F BCE708CO2, BCE704C01 2B21-F013G BCE708CO2, BCE707C01 2C82-LT-N005 No Cables in Fire Area 2C82-LI-R005 No Cables in Fire Area 2C82-PT-N006 No Cables in Fire Area 2C82-PI-R006 No Cables in Fire Area 2C82-FI-R004 No Cables in Fire Area 2C82-FT-N001 No Cables in Fire Area 2C82-R003 No Cables in Fire Area 2C82-R001 No Cables in Fire Area 2P41-C001B PUE836C13 2C11-C001B CBX806C11, CBX806C05 2T47-TE-NO70 No Cables in Fire Area 2T47-TI-R070 No Cables in Fire Area 2T47-TE-N071 No Cables in Fire Area 2T47-TI-R071 No Cables in Fire Area 2T47-TE-N072 No Cables in Fire Area 2T47-TI-R072 No Cables in Fire Area 2T47-TE-N073 No Cables in Fire Area 2T47-TI-R073 No Cables in Fire Area 2T48-LT-N070 No Cables in Fire Area 1
2T48-LI-R070 No Cables in Fire Area 2T48-PT-N071 No Cables in Fire Area 2T48-PI-R071 No Cables in Fire Area 2T48-TE-N072 No Cables in Fire Area 2T48-TI-R072 No Cables in Fire Area 2T48-TE-N073 No Cables in Fire Area 2T48-TI-R073 No Cables in Fire Area 2E11-FT-N071 No Cables in Fire Area 2E11-FI-R071 No Cables in Fire Area 2R22-S006-FR9 CBX806C11, CBX806C05 2R22-S006-FR7(ACB 135570)
RTED01C17 2R22-S007-FR2(ACB 135556)
RHE802C04 2R22-S007-FR3 EAE884CO2, EAE884C07 2R22-S007-FR7(ACB 135540)
RUE 801C09 2R22-S007-FR4 EAE886CO2, EAE886C07 2R22-S007-FR8 EAE888C04, EAE888C05 2R22-S007-FR5 PUE836C13 2R23-S003-FR3M RIE706C01 2R23-S003-FR8M(ACB 135674)
RIE701C05, RIE701C01 2R22-SOOS-FR2(ACB 135536)
RHE701C04 2R23-S004-FR4T RIE810C01 2R23-S004-FR2M(ACB 135684)
RIE803C04, RIE803C01 2R23-S004-FR3T No Cables in Fire Area 2R23-S004-FR3M No Cables in Fire Area 5
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UNIT 2 RESPONSE (SHEET 3 OF 3)
A.
Essential Cables Equipment and In Fire Area Instrumentation 2R23-S004-FR3B No Cables in Fire Area 2R22-S017-FR1M RXE802C01 2R22-S017-FR2T No Cables in Fire Area 2R22-SO17-FR3M No Cables in Fire Area 2R24-S018B-FR4 RXE804C01 2R22-S016-FR2B No Cables in Fire Area 2R22-sol 6-FR2T No Cables in Fire Area
- 2E11-F007B EAE859C01
- 2E11-NO21B EAE859CO2, EAE808C10 2R22-S005-FR6(ACB 135530)
RSE701C09 2R23-S004-FR7M No Cables in Fire Area 2R25-SO37-BRKR16 No Cables in Fire Area 2R22-S017-FR1T No Cables in Fire Area 2R23-S003-FR7T No Cables in Fire Area 2R23-S003-FR7M No Cables in Fire Area 2R23-S003-FR7B No Cables in Fire Area 2R23-S003-FR2M No Cables in Fire Area 2R25-S036-BRKR15 No Cables in Fire Area
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- Note:
These components are to be added as proposed in section 8(a) of this enclosure.
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C.
Associated Circuits 1.
Associated circuits of the Plant Hatch Units 1 and 2 alternative shutdown system were defined as those cir-3 cuits that enter the cable spreading room or control room and:
a.
Have a common power source with equipment controlled during alternative shutdown operation and which are not electrically protected from the circuits of concern by coordinated
- breakers or fuses.
The cir-cuits listed by this concern are derived from the essential distribution cabinets that contain molded case circuit breakers, which power control circuits of the alternative shutdown equipment.
b.
The misoperation of which could adversely affect the operation of the alternative shutdown system.
Cir-cuits listed by this concern include the power system breaker control circuits and equipment control cir-cuits other than that controlled from the alterna-tive shutdown system.
3 2.
Circuits which share common raceways outside of the cable spreading room or control room with alternative shutdown circuits are not listed as associated circuits based on the following:
Cables used at the Plant Hatch units will not prop-a.
agate a fire from the fire area to the raceways outside the area.
t b.
The cable spreading room and control room are sepa-rated from other areas by 3-h firewalls, doors, and penetration seals.
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UNIT 1 RESPONSE (SHEET 1 0F 3 )
3.
Associated Cables i
R25-S001-ES7-MO4 R25-5065-ES8-M04 R25-S001-M05 R25-S065-M05 i
R25-S001-RP3A-M06 R25-S065-ES8-M06 R25-S001-M07 R25-S065-ES8-M08 R25-S001-M08 R25-5065-M10 R25-SOO1-MO9 R25-S065-ES8-M11 R25-S001-M10 R25-S065-ES8-M13 R25-S001-ES7-M12 R25-S065-M14 R25-S001-M13 R25-S065-ES8-M15 R25-S001-ES7-M14 R25-S065-ES8-M16 R25-S001-M15 R25-S065-ES8-M18 R25-S001-ES7-M17 R25-S065-ES8-M21 R25-S001-ES7-M19 R25-S065-M22 R25-S001-ES7-M20 R25-S065-M23 4
R25-S001-M21 R24-S011-ES7-C98A R25-S001-ES7-M22 R24-S012-ES8-C98A R25-S001-ES7-M23 R24-S021-ES7-CO8B R25-S001-ES7-M24 H11-P602-ES7-CO33 R25-S065-ES8-M26 R24-SO21-ES7-CO3A R25-S001-M26 R24-S021-ES7-C17A R25-S001-M28 R24-S021-ES7-C07B R25-S001-ES7-M29 H11-P621-ES7-C006 j
R25-S001-ES7-M31 H11-P621-ES7-col 6 R25-S001-ES7-M35 H11-P621-ES7-C008 R25-S001-M36 H11-P621-ES7-C019 R25-5064-M01 R24-S012-ES8-C59B l
R25-S064-M02 H11-P623-ES8-C001 R25-S064-M03 H11-P614-ES9-C087 R25-S064-ES7-M05 H11-P614-ES9-C105 R25-S064-ES7-MO7 H11-P614-ES9-C089 R25-S064-M08 H11-P614-ES9-C097 R25-S064-M10 H11-P614-ES9-C121 R25-5064-M14 H11-P614-ES9-C093 R25-S064-ES7-M18 H11-P614-ES9-C117 R25-S064-ES7-M19 H11-P614-ES9-C107 R25-SO64-ES-M20 H11-P614-ES9-C127 R25-S064-M21 H11-P614-ESO-C113 R25-S064-ES7-M22 H11-P614-ESA-C125 R25-S064-ES7-M24 H11-P614-ESG-C115 R25-S064-ES7-M25 H11-P601-ES8-C116 R25-SO64-M28 R24-S012-ES8-C55A R25-S064-M29 R24-S012-ES8-C61A R25-SO64-ES7-M30 R24-S012-ES8-C63B R25-S064-M31 R24-S012-ES8-C49B R25-SO64-ES7-M32 R24-S012-ES8-C37B R25-S064-ES7-M35 R24-S012-ES8-C40A R25-S064-M36 R24-S012-ES8-C22C R25-S065-M01 R24-S011-ES7-C98B R25-5065-M03 8
I UNIT 1 RESPONSE (SHEET 2 OF 3) 3.
Associated Cables R24-SO12-ES8-C98B H11-P623-PCIIA-C048 R24-SO21-ES7-C08A H11-P623-PCIIA-C050 R24-SO21-ES7-CO3B R24-S011-ES7-C81A R24-SO21-ES7-C12A R24-SO22-ES8-C18A R24-SO21-ES7-C07C H11-P617-ES7-C074 R24-SO21-ES7-C07A R24-SO22-ES8-C20A H11-P621-ES7-C020 R24-SO11-ES7-C29B 1
H11-P621-ES7-C007 R24-S018-ES7-C25A H11-P621-ES7-C009 R24-S018-ES7-C25C H11-P654-ES8-COS2 H11-P617-ES7-C011 H11-P623-ES8-COO 3 H11-P617-ES7-CO29 H11-P623-ES8-C002 H11-P617-ES7-C076 H11-P614-ES9-CO88 H11-P618-ES8-C010 H11-P614-ES9-C106 H11-P618-ES8-C024 H11-P615-ES9-C090 H11-P618-ES8-CO80 H11-P614-ES9-C098 H11-P626-ES7-COO 4 H11-P614-ES9-C122 H11-P626-ES7-C006 H11-P614-ES9-C094 H11-P627-ES8-C006 H11-P614-ES9-C118 H11 D601-ES7-C112 H11-P614-ES9-C108 R24-3011-ES7-C27A H11-P614-ES9-C128 H11-P654-ES8-C018 H11-P614-ESO-C114 H11-P622-PCIA-C043 H11-P614-ESO-C126 H11-P622-PCIA-C045 H11-P614-ESO-C116 H11-P622-PCIA-C047 R24-S012-ES8-C35A H11-P622-PCIA-C049 l
R24-SO12-ES8-C25A H11-P622-PCIA-C051 R24-SO12-ES8-C63A H11-P622-PCIA-C053 R24-SO12-ES8-C49A H11-P622-PCIA-C055 R24-SO12-ES8-C37A H11-P622-PCIA-C057 R24-SO12-ES8-C40B H11-P623-PCIIA-CO37 R24-SO12-ES8-C22 H11-P623-PCIIA-CO39 R24-SO12-ES8-C91A H11-P623-PCIIA-C041 H11-P601-ES7-C111 H11-P623-PCIIA-C043 R24-S011-ES7-C21A H11-P623-PCIIA-C045 R24-SO11-ES7-C95A H11-P623-PCIIA-C047 H11-P622-PCIA-C042 H11-P623-PCIIA-C049 H11-P622-PCIA-C044 H11-P623-PCIIA-C051 H11-P622-PCIA-C046 R24-S011-ES7-C81B H11-P622-PCIA-C048 R24-SO22-ES8-C18B H11-P622-PCIA-C050 H11-P601-ES7-C058 H11-P622-PCIA-COS2 R24-SO22-ES8-C20B H11-P622-PCIA-C054 R24-S011-ES7-C29A H11-P622-PCIA-C056 R24-SO18-ES7-C25B H11-P623-PCIIA-CO36 H11-P617-ES7-C010 H11-P623-PCIIA-CO38 H11-P617-ES7-C024 H11-P623-PCIIA-C040 H11-P617-ES7-C075 H11-P623-PCIIA-C042 H11-PE18-ES8-C009 H11-P623-PCIIA-C044 H11-P618-ES8-C019 H11-P623-PCIIA-C046 H11-P618-ES8-C079 l
l 9
i i
UNIT 1 RESPONSE (SHEET 3 0F 3) 3.
Associated Cables H11-P626-ES7-C003 H11-P652-ESC-C36 H11-P626-ES7-C005 R25-S065-ES8-M27 H11-P627-ES8-C005 R25-S065-ES8-M28 H11-P627-ES8-C007 R25-S065-M31 H11-P627-ES8-COO 8 R25-S065-M32 H11-P617-ES7-C025 R25-S065-M34 Hll-P601-ES7-C135 R25-S065-ES8-M35 H11-P601-ES8-C059 R25-S065-M36 H11-P601-ES8-C136 R25-S002-ES8-M04 R24-S018-ES8-C07B R25-S002-ES8-M06 R24-S011-ES7-C69A R25-S002-RP3B-M08 R24-5011-ES7-C69C R25-S002-M09 H11-P626-ES7-C002 R25-S002-ES8-M10 H11-P626-ES7-C009 R25-S002-ES8-M14 H11-P626-ES7-C012 R25-SOO2-ES8-M15 H11-P627-ES8-C004 R25-S002-ES8-M16 H11-P627-ES8-C010 R25-SOO2-ES8-M21 H11-P627-ES8-C013 R25-S002-ES8-M22 H11-P601-ES8-C018 R25-S002-M23 R24-S012-ES8-C71B R25-S002-M24 3
R24-5011-ES7-C43A R25-S002-ES8-M25 R24-S022-ES8-C17A R25-SOO2-M26 H21-P002-C003 R25-S002-ES8-M29 R24-S014-C11A R25-S002-M34 H11-P652-ESA-C02 R25-S002-M36 l
H11-P652-ESC-C33 R25-S064-M09 H11-P652-ESA-C10 R25-S065-M25 H11-P652-ESB-C22 R25-S002-M01 i
H11-P618-ES8-C020 R25-S002-ES8-M02 H11-P601-ES7-C117 R25-S002-ES8-M30 H11-P618-ES8-C077 H11-P601-ES8-C118 R24-SO18-ES8-C07A l
R24-S018-ES8-C07C R24-S011-ES7-C69B H11-P626-ES7-C001 H11-P626-ES7-C007 H11-P626-ES7-C010 H11-P627-ES8-C003 l
H11-P627-ES8-COO 9 H11-P627-ES8-C011 H11-P627-ES8-CO2O R24-S012-ES8-C71A R24-S012-ES8-C71D R24-S011-ES7-C43B R24-S022-ES8-C17B H11-P602-C053 R24-S014-C13A H11-P652-ESA-C11 H11-P652-ESB-C17 10 l
UNIT 2 RESPONSE (SHEET 1 OF 2) 3.
Associated Cables CJE715MO2 PEE 701M01 BBE005C16 EAE701M01 EAX713M03 BBX904C17 SDX703M01 NBX799M01 BBE904C18 i
CMX743M01 BBE706M01 BBX005C17 SEX 704M01 EAE739M01 BBE005C18 CHX705M01 EAE713M02 EEE701COS SDX703MO2 AAX714M01 EEE701C06 EEE701M01 CAX701M01 EEE701C09 NEX723M01 BGX711M01 EEE802COS NBX702M01 PDE711M01 EEE802CO3 AAE729M01 AAE712M01 BBX904C07 BBE707M01 NBX7ADM01 BBX901C29 EAE773M01 CJE715M01 BBE901C30 CCX703M01 AAE706MO9 BBX904C09 RGX703M01 DAX801M01 BBE904C10 CME 739M01 TBE802M01 BBX901C25 EBE701M01 LDX802M19 BBE901C26 RNX701M24 PME802M01 BBX904C11 BCE702M01 LAX 821M01 BBE904C12 RSE703M01 BAE803M01 BBX901C27 EEE718MOl EAE813M05 BBE901C28 PME706M01 TDX801M01 EEE701C08 SGX811M01 RKX802M08 EEE703C10 EAE807M01 DAX803M04 EEE722C01 EDE802M01 THX801MO2 EEE722CO2 CMX844M01 PEE 802M01 EEE823C01 EDE807M02 AAE807M06 EEE823CO2 CJE814MO2 AAX805M01 AAE819C01 AAE830M01 CJE814M01 ZAE804C01 BBE807M01 EAX813M01 ZAE815C01 CCX803M03 CAX805M01 ZAE815CO3 l
EBE802M01 EAE862M01 ZAE714C01 EEE703M01 AAX831M01 ZAE714CO3 CME 840M01 GEX809MO3 PC1A02CO6 EDE807M01 DAX805M01 FC1A02CO3 RUE 802M01 BHX811M01 PC1A02C07 BEX701M01 BBE806M01 PC1A02C04 NVX708M01 PDE812M01 PC1A02C18 j
RSE722M01 PUX817C05 PC2A02C06 FME707M01 TBE806C01 PC2A02CO3 AAE712M01 TBE806CO2 PC2A02C08 CBX701M01 PUE856C01 PC2A02C10 TBE701M01 EAE865C01 PC2A02C04 RKX701M05 EEE701C15 PC2A02C12 DAX703M05 EEE802C04 PC2A02C05 THX701M01 BBE005C14 EFE703C01 RKX701M07 BBX904C15 EFE804C01 RKX701M09 BBE904C16 AAE706C01 PUX739M01 BBXOO5C15 AAE709CO2 11
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UNIT 2 RESPONSE (SHEET'2 OF 2)
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Associated Cables ',
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AAE808C01 EAE892C04 RSE708C04 AAE808CO2 AAE717C01 EBE704C01 RSE704C06 EBE704CO2 RUE 807C04 AAE823001 f
EBE701C01 j-RUE 803C06 AAZ823CO2 EBE701CO2 RTED04C05 BBX904C13 EBE701C12 RSE714C04 AAE824CO2 EBE701C13,.
RUE 813C04
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BBE904C14 EBE701C14 '
RTED09C05 TBE810 col.
EBE701C15 z.
BBX005C13 EBE802C01)
,l yj TBE810CO2 EBE802CO2'-
2 EAE736C01 EBE802C12 EAE736CO2
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EBE802C13 EAE701C01 EBE802C14 -,
EAE701CO2 EBE802C15, J_p'-
EAE701C05.
EEE?l2CO3nn J/
EAE701C06 EBE712C05,
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EAE701C17s a
EBE807C01 EAE701C18 EPS807CO2',.
EAE70iC19
^EBE813CO,3~
EAE80_7C01 EBE813COS 7,.
EAE807CO2,
AAE715C01
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EAE807C05l %
AAE7.20C01
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EAE807C17 AAC818C01
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EAE807C18 GEX009c12 EAE807C19
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GEX801C01 -
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EBE701C04-EGE731C01 EBE701C05 EGE732C01 EBE701C16 EGE733CO2
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EBE802CO3 EGE733CO3 EBE802C04-EGE729C01 A~
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EBE802C05' EGE730C01 EBE802C16 EGE733C04 EAE734CO2 EGE810C01
'EAE734CO3 EGE814C01 EAE734C04 EGE811 col I
EAE791CO3 EGE815C01 EAE791C04 -
EGE812CO2
'EAE860C01 EGE816CO2
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EAE860CO2 EGE813C01 EAE858C02 EGE81~7001
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EAE858CO3 RSE706C05 ' '
EAE858C04 RUE 805C.05._ '
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UNIT 1 AND 2 RESPONSE D.
Fire induced failures of the cables listed in sections B and C i
will not prevent operation or cause maloperation of the Remote Shutdown system.
These cables fall into one of the following four categories:
1
)
1.
Cables that are switched out upon actuation of the transfer
]
switches of the Remote Shutdown Panels.
(Section B) 4 2.
Cables that control circuit breakers for which a procedure for manually operating the circuit breakers will be in-cluded in the remote shutdown procedures HNP-1-1908 and HNP-2-1908.
(Section C) 3.
For cables that share a common power source and are not electrically protected by coordinated circuit breakers, i
a procedure for manually disconnecting these cables by tripping their circuit breakers at the distribution panels and resetting the feeder breaker will be included in the remote shutdown procedures HNP-1-1908 and HNP-2-1908.
{-
(Section C) 4.
Cables associated with equipment whose spurious operation could adversely affect the remote shutdown operation.
These cables will be accounted for by procedures to manually trip out the spuriously operated components.
(Section C) 1 r
4 i
1 F*
7 13
UNIT 1 AND 2 RESPONSE E.
A marked-up set of drawings showing how each cable identified in item B; i.e.,
essential cables in fire area; is isolated from the fire area is provided.
These cables are highlighted in yellow and assigned a number code as described in section D and repeated here:
1.
Cable is switched out of control circuit upon act'tation of the transfer switch.
2.
Cable controls circuit breaker but are eliminated by manually operating the circuit breaker.
e 14 i
Item II.
HIGH PRESSURE-LOW PRESSURE INTERFACES The February 20, 1981, NRC letter introduces the issues of a potential intersystem loss-of-coolant accident (LOCA) caused by a fire.
Georgia Power Company has agreed to investigate the sepa-ration of cables in those areas where redundant electrically-operated isolation devices are utilized for high pressure system to low pressure system isolation.
The high pressure-low pressure system boundaries have been identified for the Hatch systems.
In those cases in which one of the isolation valves is a check valve, the effects of a fire on the motor-operated valve are mitigated by the check valve.
In those cases in which one of two electrically-operated valves is required to maintain pressure integrity, Georgia Power Company proposes the isolation of the valve from its power feed during plant operation.
This isolation may be accomplished by install-ing isolation switches, racking out existing breakers during power operation, lifting electrical leads, or other means as appropriate for the valves of ccncern.
Preliminary investigation of the safety and operational aspects of isolation of electrical power has indicated that this approach may not be applicable to certain valves.
If the isolation of these valves is not feasible, Georgia Power Company will propose modifications consistent with those proposed for the protection of the safe shutdown pathways under Appendix R.
The determination of exactly which valves will require isolation and how isolation can best be accomplished is not yet complete.
These data will be available by October 1, 1982.
In any event, Georgia Power Company anticipates the completion of the physical and procedural modifications required to provide isolation of the high pressure-low pressure boundary valves from their power feeds during power operation by December 30, 1983.
Other modi-fications that may be necessary will be accomplished on the same schedule as the Appendix R modifications for the affected fire areas.
While no significant potential exists for adverse impact to public health and safety from fire induced (or other cause) intersystem LOCAs, the investigation of this potential accident will continue separate from 10 CFR 50.48 or Appendix R.
Georgia Power Company does not, therefore, consider the application of the Appendix R prescriptive measures to be mandatory to this aspect and the pro-posed isolation of power feeds to the interface valves does not constitute a request for an exemption from Appendix R.
Similarly, Georgia Power Company does not consider any proposed changes to the physical plant or plant procedures for this purpose to be sub-ject to the schedular requirements of Appendix R.
Therefore, whereas the proposed schedule for implementation of modifications to meet Appendix R is itself an exemption request, no such exemption request is required for the high pressure to low pressure inter-face protective measures.
15
.