ML20151N800

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Informs That Auto Shunt Trip Mod Installed in Reactor Trip Sys as Requested in 850624 Safety Evaluation Re Generic Ltr 83-28,Item 4.5.1.Appropriate Periodic Test Procedure Revised.Item Complete
ML20151N800
Person / Time
Site: North Anna Dominion icon.png
Issue date: 12/27/1985
From: Stewart W
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: Harold Denton, Rubenstein L
Office of Nuclear Reactor Regulation
References
85-494C, GL-83-28, NUDOCS 8601030126
Download: ML20151N800 (2)


Text

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VINUINIA ELecruIc ann l'ownu COM1'ANY H rcu xoxn,Vr uoix A Mll 2 GI W.L.STEwanst d' j" ,8'","" ' ""," ', ,, , December 27, 1985 Mr. Harold R. Denton, Director Serial No. 85-494C Office of Nuclear Reactor Regulation NAPS /JHL Attn: Mr. Lester S. Rubenstein, Director Docket No. 50-338 PWR Project Directorate #2 License No. NPF-4 Division of PWR Licensing - A U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT NO. 1 GENERIC LE' ITER 83-28 ITEM 4.5.1 REACTOR TRIP SYSTEM RELIABILITY (SYSTEM FUNCTIONAL TESTING)

By letter dated June 24, 1985, the NRC provided a safety evaluation for Generic Letter 83-28, Items 3.1.1, 3.1.2, 3.2.1, 3.2.2, 4.1 and 4.5.1.

Item 4.5.1 of that safety evaluation requested that the NRC be notified when the auto shunt trip modifications were completed for North Anna Unit No. 1.

This letter is to inform you that the auto shunt trip modification has been installed in the North Anna Unit No. I reactor trip system. In addition, the appropriate periodic test procedure has been revised to include on-line functional testing of the auto shunt trip feature.

These actions should complete Generic Letter 83-28, Item 4.5.1 Reactor Trip System Reliability (System Functional Testing). We therefore believe this item can be closed.

Very truly yours, o

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vnmsma Euctmic awn Powna COMPANY TO Mr, }IarOld 'l. Denton cc: Dr. J. Nelson Grace Regional Administrator NRC Region II Mr. '.f. W. Branch NRC Resident Inspector North Anna Power Station

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