ML20151K609
| ML20151K609 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 07/20/1988 |
| From: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Hairston W GEORGIA POWER CO. |
| References | |
| NUDOCS 8808030223 | |
| Download: ML20151K609 (13) | |
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3 g 2 0 1909 Docket No. 50-424 License No. NPF-68 Geprgia Power Company
,U6TN: Mr. W. G. Hairston, III Senior Vice President -
Nuclear Operations P. O. Box 4545 Atlanta, GA 30302 Gentlemen:
SUBJECT:
ENFORCEMENT CONFERENCE
SUMMARY
(NRC INSPECTION: REPORT NO. 50-424/88-24)
This refers to the Enforcement Conference held at our request on July 5,1988.
This meeting concerned. activities authorized for your Vogtle facility.
The issues discussed at this conference related to the water intrusion into the control room event on June 3,1988 as a result of inadequate design and testing of the cable penetration seals.
A meeting summary, list of attendees, and a copy _of your handout are enclosed. We are continuing our revied of these' items to determine the appropriate enforcement action.
In accordance with Section 2.790 of NRC's "Rules of Pract.ce," Part 2, Title 10, Code of Federal Regulations, a copy of this letter and its enclosures will be placed in the NRC Public Document Room.
Should you have any questions concerning this letter, we will be pleased to discuss them.
Sincerely, J. Nelson Grace Regional Administrator
Enclosures:
1.
Enforcement Conference Sumary 2.
List of Attendees 3.
Georgia Power Company Presentation (ca. c. M M m pa vw. %
cc w/encis:
(See page 2) 8808030223 800720 PDR ADOCK 05000424 G
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Geo'rgia Power Company 2
JUL 2 01988 cg w/encis:
T. P. Mcdonald, Executive Vice President, Nuclear Operations J/D. Rice, Vice President, Project Director d/W. Hayes,VogtleQuality fssuranceManager E. Bockhold, Jr., General Manager, Nuclear Operations i'
d Gucwa, Manager, Nuclear Safety jndLicensing Q. A. Bailey, Project Licensing Manager ty? W. Churchill, Esq., Shaw, Pittman, Potts and Trowbridge d Kirkland, III, Counsel, Office of the Consumer's Utility
- d. Council Feig, Georgian.; Against Nuclear Energy bcc w/encis:
8 Reis, 0GC M Hopkins, NRR M. Sinkule, Ril DRS, Tcchnical Assistant tNRC Resident Inspector Document Control Desk State of Georgia RII g
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ENCLOSURE 1 ENFORCEMENT CONFERENCE
SUMMARY
On July 5,1988, representatives of Georgia Power Company (GPC) met with the NRC in the Region II office in Atlanta, Georgia to discuss the Vogtle control room cable penetration seals. A list of meeting attendees is in Enclosure 2.
NRC management. ions as a result of the water intrusion into the control roomopened the m corrective act from the June 3, 1988 event needed to be fully addressed.
GPC made a presentation discussing a typical penetration seal.a chronology of -
events, plant response, and long-term corrective action. GPC stated the design of the cable penetrations was adequate for fire protection but a design and testing oversight existed for the seals as a water barrier.
An outline'of GPC's presentation is given in Enclosure 3.
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SM0KE ALARM RECEIVED o
.PREACTION DELUGE VALVES ACTUATED o
LEAK OFF FROM F.P. PIPING GOES TO UPPER CABLE SPREADING ROOM (UCSR) o WATER SEEPS TO CONTROL ROOM o
WATER DRIPS CAUSED ACTUATION OF PRZR. BACKUP HEATERS AND PORV o
ENGINEERING REVIEW 0F EVENT o
INITIAL EVALUATION - EVENT ENVELOPED BY CONTROL ROOM FIRE l
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SPRINKLER SYSTEMS RESTORED
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STEPS TAKEN TO PREVENT UNANALYZED CONDITION:
o UCSR SPRINKLERS ISOLATED o
CONTINUOUS FIRE WATCH ESTABLISHED o
UCSR DOOR BERMS UPGRADED TO 6" o
FUNCTIONAL TEST ON SPURIOUSLY ACTUATED CIRCUlTRY
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SPECIAL TEST FOR PENETRATION SEALS WRITTEN o
PERFORMED TESTING ON UNIT 2 PENETRATIONS
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PERFORM BROADNESS REVIEW:
o FIND OTHER APPLICATIONS WHERE LEAKAGE COULD AFFECT SAFETY RELATED EQUIPMENT o
EVALUATION TO BE COMPLETE BY AUGUST 15,1988 o
DEVELOP REPAlR FOR INTERNAL SEEPAGE PATH o
TESTING FOR DESIGN SOLUTION TO BE COMPLETE BY AUGUST 19,1988
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QUICK RESPONSE BY FIRE BRIGADE MINIMlZE EVENT CONSEQUENCES o
QUICK RESPONSE BY ENGINEERING ADDRESS DESIGN PROBLEM
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