ML18081A439

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Forwards Request for Addl Info Re NPSH Requirements for RHR Pumps During Recirculation Mode.Info Needed to Complete Evaluation of FSAR
ML18081A439
Person / Time
Site: Salem PSEG icon.png
Issue date: 10/19/1979
From: Parr O
Office of Nuclear Reactor Regulation
To: Mittl R
Public Service Enterprise Group
References
NUDOCS 7910290397
Download: ML18081A439 (3)


Text

Docket No. 50-311 DISTRIBUTION:

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RMattson Mr. R. L. Mittl~ General Manager Licensing and Environment SHanauer

'JKnight RTedesco RDeYoung VMoore

  • MErnst RDenise ELD Engineering and Construction Department*

Publ~c Service ~lectric and Gas Co~pany 80 Park Place Newark, New Jersey *07101

Dear Mr. Mittl:

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE SALEM UNIT 2 FINAL SAFETY ANALYSIS REPORT (FSAR)

As a result of our continuing review of the Salem FSAR~ we find that we need additional i nforniation to complete our evaluation. The specific information required is listed in the enclosure.. -

Please inform us after receipt of this letter, of your schedule for providing the information described in the enclosure.

Enclosure:

As Stated cc: See Next Page Sincerely, Ori.sirmJ. signed by

  • A. W. Dromerio~,
  • Olan D. Parr, Chief Light Water Reactors, Branch No. 3 Division of Proje~t Management Ol"FICll~

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L~ Mittl. General Manager Licensing and Environment Engineering and Construction Department Public Service Electric and Gas Company 80.Park Place Newark, New Jersey 07101 cc: Richard Fryling~ Jr., Esq.

Assistant General Counsel Public Service Electric & Gas Company 80 Park Pl ace Newark,* New Jersey 07100 Mark'Wetterhahn, Esq.

Conner, *Moore & Cober 1747 Pennsylvania Avenue, N.W.

Suite 1050 Washington, D.C.

20006 Mr. Leif J. Norrholm U. S. Nuclear Regulatory Commission Region I Drawer I Hancocks Bridge, New Jersey -08038 *

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ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION SALEM NUCLEAR GENERATING STATION, UNIT 2 DOCKET NO. 50-311 NPSH REQUIREMENTS FOR RHR PUMPS DURING RECIRCULATION MODE In a related concerh about Sal~m, Unit 2, sump design the staff has estimated the head las$ acros-s-the existing sump screen to be about 5.5 feet.which disagree with the 2.0 feet assumed in your analysis. The staff estimate was for a 11two pump operating" case, however. *Considering this, and the possibility that a "worst case 11 alignment may have changed with the installation of flow restrictors, describe any desigri alterations to reduce the sump i

screen head.loss, and discuss why the current NPSH analysis is applicable for the worst case alignment.