ML20024F712

Requests Elimination of Addl Tech Spec Requirement in SER Section 7.2.2.2 on Resistance Temp Detector Bypass Flow Measurement.Present Plan to Perform Calibrs of Bypass Flowrates Adequate

ML20024F712
Person / Time
Site:	Wolf Creek, Callaway, 05000000
Issue date:	08/31/1983
From:	Petrick N STANDARDIZED NUCLEAR UNIT POWER PLANT SYSTEM
To:	Harold Denton Office of Nuclear Reactor Regulation
References
SLNRC-83-0047, SLNRC-83-47, NUDOCS 8309090600
Download: ML20024F712 (2)

Text

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SNUPPS Standardized Nuclear Unit Power Plant System "n ,*7,I,'[Q,,",*,*d20eso Nicholas A.Petrick (301)869 801o August 31, 1983 Executive Director SLNRC 83-0047 FILE: 0278 SUBJ: ICSB Review: Proposed Technical Specification Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Docket Nos. STN 50-482 and STN 50-483

Reference:

SLNRC 82-018, dated April 2,1982; Callaway SER -

Proposed Technical Specification

Dear Mr. Denton:

Section 7.2.2.2 of the Safety Evaluation Reports (SER) for Callaway Plant and Wolf Creek Generating Station discusses a proposed techni-cal specification requirement to verify at each refueling, that the magnitude of the flow rate in the reactor coolant system RTD bypass loops is within required limits. Based on the following information, the SNUPPS Utilities do not believe that this requirement is neces-sary.

The RTD bypass loop flowrate is directly monitored by flow indicat-ing switches which provide individual RTD loop alarms in the control room if a low flowrate condition develops. Also, as discussed in Section 7.2.2.3.2 of the SNUPPS FSAR, other indications and alarms are available in the control room to provide warning of a low flow-rate condition in an RTD loop. In addition, the referenced letter provided further information to the NRC to demonstrate that a tech-nical specification requirement is not necessary. Finally, the SNUPPS Utilities plan to perfonn periodic calibrations of the RTD bypass loop flow indicating switches to assure that flowrates are maintained above the required limits. Calibration of the flow indicating switches will be perfonaed at least once per 18 months.

Scol I'o i

8309090600 830831 PDR ADOCK 05000482 E PDR

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SLNRC 83- 0047 Page 2.

Based on the above information, the NRC staff is requested to eliminate '

an additional technical specification requirement on , RTD bypass flow measurement. J Very ul yours, f+4 \ f Nicholas A. Petrick MHF/nid5b20 cc: D. T. McPhee KCPL J. H. Neisler USNRC/ CAL G. L. Koester KGE H. Roberds/W. Schum'

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USNRC/WC D. F. Schnell UE i

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$@@M NANCY DAVISON

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PLEASE DESTROY LETTER SLNRC 83 - 0046 AND REPLACE WITH ATTACHED LETTER SLNRC 83 - 0047.

THANK YOU......... ,

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