ML20003H356

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Responds to NUREG-0737,Item II.K.3.14 Re Design Change to Isolation Condenser Sys Isolation Logic.Facility Isolation Condenser Sys Utilizes Excessive Flow in Steam & Condensate Lines to & from Condensers.Addl Mods Not Required
ML20003H356
Person / Time
Site: Oyster Creek
Issue date: 04/30/1981
From: Finfrock I
GENERAL PUBLIC UTILITIES CORP.
To: Harold Denton
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.K.3.14, TASK-TM NUDOCS 8105050649
Download: ML20003H356 (1)


Text

GPU Nuclear QQ gf 100 Interpace Parkway a

Parsippany. New Jeisey 0705a 201 263-6500 TELEX 136-482 Writer's Direct Dial Number:

April 30, 1981 m $L]

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Director, Office of Nuclear Reactor Regulation

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U. S. Nuclear Regulatory Commission QQ4 Washington, D. C.

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Dear Sir:

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Subject:

Oyster Creek Nuclear Generating Station Docket No. 50-219 NUREG 0737, Item Il.K.3.14 NUREG 0737, item II.K.3.14 specifies a design change to the isolation condenser system isolation logic. The description as provided in the NUREG is incorrect for the Oyster Creek station. The isolation condenser system utilized at the Oyster Creek Nuclear facility door, not isolate upon a high-radiation signal in the main steam line leading to the isolation condensers.

Tne Oyster system utilizes excessive flow in the steam lines to and condensate lines from the isolation condensers as the only isolation signal for the system isolation valves.

Because the Oyster Creek system is different from the one described in'the NUREG, we feel no additional modifications are required to meet the objective of this NUREG ltem.

I f you should have any questions concerning this matter, p. ease call Mr.

James Knubel (201-455-8753).

Very truly yours, bll L/

/

Ivan R. Fin ck Jr.

Vice Presi nt ir i

fil 05 05 0 6 4 9 GPU Nuclear is a part of the General Public Utihties System