ML19338D563

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Confirms 800904 Telcon Re Compliance w/NUREG-0578,Item 2.1.3.b Concerning Wide Range Pressure Inputs & Resistance Temp Detector Uncertainty.Util Will Upgrade nonsafety-grade Input to Safety Grade During Second Refueling
ML19338D563
Person / Time
Site: Beaver Valley
Issue date: 09/17/1980
From: Sieber J
DUQUESNE LIGHT CO.
To: Ross W
Office of Nuclear Reactor Regulation
References
BVPS-LC:JDS:399, TAC-12395, NUDOCS 8009230454
Download: ML19338D563 (1)


Text

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DUQUESNE LIGHT COMPANY Beaver Valley Power Etation Post Office Box 4 Shippingport, PA 15077 September 17, 1980 BVPS/LC:JDS:399 Memorandum of Telephone Conversation Compliance with NUREG 0578 Item 2.1.3.b Subcooling Meter Mr. William J. Ross, Licensing Project Manager United States Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Division of Licensing Washington, D. C.

20555

Dear Mr. Ross:

This memorandum confirms a telephone conversation on September 4, 1980 with Mr. Mel Fields concerning the position of Beaver Valley Unit No. 1 with respect to the wide range pressure inputs and the RTD uncertainty.

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The subcooling meter presently utilizes one safety grade range pressure input, the other wide range input is not considered safety grade. DLC will take the'necessary action to upgrade the non safety grade input to safety grade during the second refueling.

The uncertainty listed for the RTD's listed in tne table of our response takes into account all variables (i.e. calibration,. instrument drift, indi-cator accuracy, etc.) The overall uncertainty listed for the display is for the difference between the input to the subcooling meter and the meter display.

If you have any further questions, please contact me.

Very truly yours,

,2/ M 10

/M.D.Sieber g

Superintendent Licensing and Compliance

-RFB:ba j

80.09230f8I

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