ML20008E203

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Submits Test Procedure for Validation of Adequacy of Electrical Sys Voltage,Per 801002 Telcon Between Util,Nrc & United Engineers & Constructors.Test Will Be Completed by Nov 1980 & Results Submitted by 810130
ML20008E203
Person / Time
Site: Brunswick  Duke Energy icon.png
Issue date: 10/15/1980
From: Utley E
CAROLINA POWER & LIGHT CO.
To: Ippolito T
Office of Nuclear Reactor Regulation
References
NO-80-15, NUDOCS 8010240405
Download: ML20008E203 (3)


Text

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89M Carolina Power & Lignt Com;:any October 15, 1980 File: NG-3514(B)

SERIAL NO.:

NO-80-1548 Office of Nuclear Reactor Regulation ATTENTION:

Mr. T. A. Ippolito, Chief Operating Reactors Branch No. 2 United States Nuclear Regulatory Commission Washington, D. C.

20555 BRUNSWICK STEldt ELECTRIC PLANT UNIT NOS.1 AND 2 DOLsET NOS. 50-325 AND 50-324 LICENSE NOS. DPR-71 AND DPR-62 ADEQUACY OF STATION ELECTRICAL DISTRIBUTION SYSTEMS VOLTAGE

Dear Mr. Ippolito:

A telephone conference call was held on October 2, 1980, among representatives of Carolina Power & Light Company (CP&L), NRC, and United Engineers & Constructors (UE&C). UE&C is the architect-engineer for the Brunswick Steam Electric Plant (BSEP). Attachment 1 is a list of parti-cipants in the conference call. The call was held at NRC's request to discuss the test of the BSEP electrical auxiliary system as proposed by CP&L letters dated October 8, 1979 and July 24, 1980, which responded respectively to NRC letters dated August 8, 1979 and May 16, 1980.

NRC did not feel that the on-site procedure described in our July 24, 1980 letter (starting a 480v screen wash pump and measuring the voltaga drops) would provide enough information to validate an analysis provided by UE&C.

In addition, all participants agreed that a test as j

outlined in CP&L's October 8, 1979 letter (tripping the turbine, trans-ferring all electrical loads to the startup transformer, starting the ECCS pumps, and measuring the voltage drops) was unwarranted.

After a discussion of the Plant Electrical Distribution System, it was agreed that the following test could be satisfactorily utilized to validate the UE&C analysis in lieu of the previously proposed tests:

1.

The unit must be on line with all running electrical loads supplied from the start-up transformer.

2.

Start one of the circulating water pumps.

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Measure the voltage drops at specified points throughout the distribution system.

4.

Compare on-site test results with the analysis and submit the results to the NRC.

Our present schedule is to complete this test by the end of November, 1980. Following this, the test data will be compared to the analysis 2nd we anticipate that the results will be submitted to NRC by January 30, 1981.

Yours very truly, 3

E. E. Utley Executive Vice President Power Supply and Engineering & Construction DCS/ JAM /je (111-796)

Attachment i

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e ATTACIDtENT 1 L

Participants in October 2, 1980 telephone conference call concerning CP&L Brunswick Plant " Adequacy of Station Electrical Distribution Systems Voltage" testing:

Name Organization f

I. Ahmed NRC J. A. McQueen CP&L Nuclear Licensing D. C. Stadler CP&L Regulatory Compliance C. D. Greiman UE&C Philadelphia G. C. Bishop CP&L BSEP Engineering P. R. Bernard CP&L BSEP Engineering W. J. Schade CP&L BSEP Engineering M. J. Pas tva CP&L BSEP Regulatory Compliance J. M. Lewis CP&L BSEP Nuclear Power Plant Engineering Department i

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