ML20248D882
| ML20248D882 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 09/26/1989 |
| From: | Engle L Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8910040430 | |
| Download: ML20248D882 (15) | |
Text
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- ,;.,a' September 26, 1989 Docket Nos. 50-338 and 50-339
-LICENSEE: Virginia Electric & Power Company (VEPCO)
FACILITY:
North Anna 1 & 2
SUBJECT:
SUMMARY
OF MEETING HELD WITH VEPC0 (THE LICENSEE) TO DISCUSS SS0MI FINDING 10-3 REGARDING ISOLATION OF NON-CLASS 1E COMPONENTS POWERED FROM CLASS 1E VITAL BUSES As a result of a SS0MI audit ending in March 1989, NRC and VEPC0 represen-tatives met at the NRC office in Rockville, Maryland to address SS0MI Finding 10-3. This finding alleged that certain non-Class 1E pressure transmitters (in the service water system) were being powered from Class 1E vital instrument power buses, without proper isolation. Such an occurrence would postulate a significant safety hazard in that the operability of safety components could be jeopardized if a fault occurred on a non-Class IE circuit, and provided both classes were loaded on the same vital bus.
The licensee's meeting agenda regarding these matters is provided as Enclosure 1.
The licensee addressed the issue by stating that components powered by vital buses are and always have been procured as " safety-related", Class 1E components, regardless of their " functional" safety status.
Thus, the licensee confidently stated that all of the subject components (fuses, cables, diodes, etc.) are safety-qualified by design.
However, VEPC0 does not list those components--which may indeed be Class IE qualified--on its stations' safety lists (Q-lists) if they don't serve a safety-related function.
Non-inclusion of these safety-grade components on NA 182 Q lists led SSOMI members to conclude that the euqipment was "not" Class IE qualified, thus Finding 10-3 resulted.
The staff found the licensee's response acceptable and requested an official Virginia Power statement be written to the same effect.
SSOMI team members indicated that a follow-up inspection scheduled for October would officially close this issue.
The attendance list is shown as Enclosure 2.
Original signed by Leon Engle, Project Manager Project Directorate 11-2 Division of Reactor Projects - I/11
Enclosures:
As stated cc:
See next page
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Mr. William C. Porter, Jr..
C. M. G. Buttery," M.D., M.P.H.
4 (County Administrator' Department of Health
- Louisa-County 109 Governor Street P.O. ' Box - 160.
Richmond, Virginia 23219' Louisa -Virginia 123093 Regional Administrator, Region II Michael W.iMaupin.lEsq.-
U.S. Nuclear Regulatory Connission Hunton and Williams 101 Marietta Street N.W., Suite. 2900 P.: 0. Box 1535 _
Atlanta, Georgia 30323 n
Richmond, Virginia 23212
.Mr; W.'.T.: Lough:
Virginia Corporation Commission
_Mr. G. E. Kane, Manager
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- Division of Energy Regulation North Anna Power Station P. 0. Box 1197 P.O. Box 402 Richmond,LVirginia'. 23209 Mineral, Virginia-23117 Old Dominion Electric Cooperative Mr. J.'P. O'Hanlon c/o Executive Vice President Vice President - Nuclear Services
. Innsbrook. Corporate Center
~ Virginia Electric and Power Company
- 4222 Cox' Road, Suite 102.
5000 Old Dominion Blvd.
Glen Allen, Virginia ~ 23060 Glen Allen, Virginia ~ 23060
-Mr. W.'R..Cartwright.
Mr. R. F. Saunders Vice' President;--Nuclear Operations Manager.- Nuclear Licensing-
' Virginia Electric and Power Co.'
Virginia Electric and Power Company 5000 Old Dominion' Blvd.
'5000 Old Dominion Blvd.
. Glen Allen, Virginia ~ 23060 Glen Allen, Virginia 23060; 4
Mr.' Patrick A. 0' Hare Mr. W.L. Stewart.
Office of-the Attorney General.
Senior Vice President - Power Supreme. Court Building.
Virginia Electric and Power Company i.L 101 North 8th Street 5000 Domimion Blvd.
Richmond, Virginia 23219 Glen Allen, Virginia 23060 Senior Resident Inspector
-North Anna Power Station i
.U.S. Nuclear Regulatory Comission Route 2, Box 78 Mineral, Virginia 23117
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DISTRIBUTION FOR MEETING SLM4ARY DATEDi September 26, 1989 f./.i
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TNRC &' Local PDRs-4 Sniezek, 12/G/18
- M T PDII-2 Reading,
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- E. Jordan, MNBB-3302 f,1 D. Roberts-C. Morris 8/D/20.
, LR. Parkhill 9/A/1 l
S. Athavale 9/A/1-
- 0. Chopra 8/D/20 ACRSL(10)
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. ENCLOSURE 2-MEETING HELD WITH VEPC0 (NA-1&2)'
AND.THE NRC STAFF SSOMI FINDING IC-3 REGARDING ISOLATION OF NON-CLASS 1E September 7, 1989 NRC VEPC0 ADVANCED TECH L. Engle.-
G..Pannell S. Weldon D. Roberts W.-Thompson C. Morris.
-T. Harding R. Parkhill T. Abercronbie S. Athavalo
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