ML20126E445
| ML20126E445 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 05/29/1985 |
| From: | Vassallo D Office of Nuclear Reactor Regulation |
| To: | Utley E CAROLINA POWER & LIGHT CO. |
| Shared Package | |
| ML20126E448 | List: |
| References | |
| NUDOCS 8506170081 | |
| Download: ML20126E445 (2) | |
Text
e-May 29,1985 Docket Nos. 50-325/324 DISTRIBUTION
, jDocket File NRC PDR Mr. E. E. Utley Local PDR ORB #2 Rdg Executive Vice President HThompson OELD Carolina Power & Light Company SNorris MGrotenhuis Post Office Box 1551 ELJordan JPartlow Raleigh, North Carolina 27602 BGrimes ACRS (10)
Gray File RDudley
Dear Mr. Utley:
PKang
SUBJECT:
ADEQUACY OF STATION ELECTRICAL DISTRIBUTION SYSTEM VOLTAGES (B-48)
Re:
Brunswick Steam Electric Plant, Units 1 and 2 By letter dated August 30, 1984, Carolina Power & Light Company (CP&L) submitted a revised voltage drop study titled " Auxiliary Electrical Distribution System Study for the Brunswick Steam Electric Plant Units 1 and 2."
A previous study had been submitted but when you identified certain discrepancies in the input data used in the voltage analysis you informed the NRC that to confirm the validity of the conclusion, CP&L would be submitting a revised analysis for our review.
The August 1984 study explained that the major difference between the revised study and the previous study was the accident scenario used to establish the minimum voltage for the offsite power source. The previous study applied a simultaneous loss-of-coolant accident (LOCA) on both units.
The new study was performed using an accident scenario of LOCA on one unit and a shutdown on the other unit.
We have reviewed the revised study and its verification test. The study has demonstrated that the existing Brunswick Units 1 and 2 electrical distribution system meets staff positions on adequacy of station electrical distribution system voltages. Therefore, we find the study to be acceptable.
We have enclosed a Safety Evaluation based on this new study along with i
EG8G's Technical Evaluation Report (TER) dated May 1985 (EGG-EA-6773).
Sincerely, l
i Original signed by/
8506170001 850529 PDR ADOCK 05000324 Domenic B. Vassallo, Chief P
PDR Operating Reactors Branch #2 Division of Licensing
Enclosures:
As stated j
cc w/ enclosures:
See next page DL:0RB#2 DL:0RB#2 P DL:0RB#2 SNo N js MGrotenhuis DVassallo 05/27/85 05/1 /85 05/p7/85
m Mr. E. E. Utley Carolina Power & Light Company Brunswick Steam Electric Plant; Units 1 and 2 cc:
Pichard E. Jones, Esquire J. Nelson Grace Carolina Power & Light Company Regional Administrator 336 Fayetteville Street Region II Office Raleigh, North Carolina 27602 U. S. Nuclear Regulatory Commission 101 Marietta Street, Suite 3100 George F. Trowbridge, Esquire Atlanta, Georgia 30303 Shaw, Pittman, Potts and Trowbridge 1800 M Street, N. W.
Dayne H. Brown, Chief Washington, D. C.
20036 Radiation Protection Branch Division of Facility Services Mr. Charles R. Dietz Department of Hen,an Resources Plant Manager Post Office Box 12200 Post Office Box 458 Raleigh, North Carolina 27605 Southport, North Carolina 28461 Mr. Franky Thomas, Chairman Board of Commissioners Post Office Box 249 Bolivia, North Carolina 28422 Mrs. Chrys Baggett State Clearinghouse Budget and Management 116 West Jones Street
,Raleigh, North Carolina 27603 Resident Inspector U. S. Nuclear Regulatory Commission Star Route 1 Post Office Box 208 Southport, North Carolina 28461 O
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