ML20058D532

Forwards Addl Info Re Proposed Change Request 1A-176 Relating to Overpressure Protection Sys

ML20058D532
Person / Time
Site:	Beaver Valley
Issue date:	10/30/1990
From:	De Agazio A Office of Nuclear Reactor Regulation
To:	Sieber J DUQUESNE LIGHT CO.
References
TAC-76889, NUDOCS 9011060149
Download: ML20058D532 (5)

Text

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['T October 30, 1990 Docket No..50-334'

[Sebl41No'BV-90-U21'

-L-I Mr. -J. D. Sieber, Vice President-tF Nuclear. Group

.Duquesne Light Company

- P. 0.; Bor d'

,Shippingport, kr.nsylvania 15007

SUBJECT:

OVERPRESSURE PROTECTION SYSTEM - CHANGE REQUEST NO. 1A-176 REQUEST'FOR ADDITIONAL-INFORMATION (TAC 76889) 7, By!= letter dated June 12, 1990, Duquesne Light Company (DLC) proposed a change

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to-the. Beaver Valley Power Station, Unit No. 1 Appendix A Technical

-Specifications; relating to overpressure protection systems. The proposed 7, -

change would replace the Low Temperature Overpressur Protection System (LTOPS)-setpoint.with a setpoint that would be a function of Reactor Coolant-

'A System' temperature.

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We are currentlyLreviewing this proposed change but we require the additional

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information indicated in the Enclosure to this letter for us to complete our 4

review. Please provide ~your response not later than November 30,11990.

p The-reportingLand/or.recordkeeping requirementscof this letter affect' fewer thannten respondents;-therefore,10MB clearance under PL 96-511 is not l lV '

crequired.'

Sincerely, o

origtiial signed by e

Albert W. De Agazio, Sr. Project Manager Pro ket Directorate I-4--

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'D'. vision'of. Reactor Projects - I/II' 4

Office of Nuclear Reactor' Regulation

Enclosure:

-Request forlAdditiona1 information-E cc w/ enclosure:.

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October 30, 1990

Docket _No. 50-334-Serial _No; BY-90-021 4

Mr.!J. D. Sieber,.Vice President Nuclear Group E

.0uquesne Light Company-P. O. Box 4 Shippingport, Pennsylvania 15007

Dear Mr.:

Siebep::

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SUBJECT:

OVERPRESSURE PROTECTION. SYSTEM - CHANGE REQUEST NO. 1A-176:

' REQUEST.FORADDITIONALINFORMATIONs(TAC 76889)

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By letter dated June-12,1990,:Duquesne Light Company (DLC) proposed a change

-j to the Beaver Valley. Power Station, Unit No.-1 Appendix A Technical _

? Specifications relating to overpressure protection systems, sThe proposed change would replace.the Low Temperature Overpressure Protection' System i

(LTOPS)'setpoint with a setpoint that would be a function of Reactor Coolant System._ temperature.

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We are-currently reviewing this proposed change but we require the additional.

information indicated in the Enclosure to this letter for. us to complete our-i ya review. Please provide your response not-later than. November 30, 1990._

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1 L The Lreporting_ and/or. recordkeeping requirements of. this. letter: affect fewer y'

'than'. ten ~ respondents; therefore, OMB clearance under PL 96-511 is not

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required.

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Sincerely, 1.

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L L. S Albert W.

e Agazio, Sr.'P' je Managar L

Project Directorate-I-4 h

Division of Reactor Projects - I/II.

Office:of Nuclear Reactor Regulation-

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L Enclosure. -

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Request for Additional Information 1

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I Mr. J. Sieber-Beaver Valley Fower Station' l

Ouquesne Light Company Units 1 & 2

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s Jay E. Silberg, Esquire-Bureau of Radiation Protection

'Shaw, Pittman, Potts and Trowbridge Pennsylvania Department of 2300 N Street,'N.W.

Environmental Resources Washington, DC J0037 ATTN:

R. Janati-Post Office Box 2063

' Nelson-Tonet, Manager Harrisburg, Pennsylvania 17120:

NuclearSafety-'

4 Duquesne' Light Company Mayor of the Borrough of t

P. 0.' Box 4-Shippingport' Shi_ppingport,. Pennsylvania 15077 Post Office Box 3 s,

Shippingport, Pennsylvania.5077 1

Commissioner Roy M. Smith Regional Administrator, Region I

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' West Virginia Department of Lauor U.S. Nuclear Regulatory Comission Building 3, Room 319-~

475 Allendale Road L

Capitol Complex King of-Prussia, Pennsylvania 19406' Charleston,-WV125305

' John D.1 Borrows'1 Resident Inspector-

' Director -Utilities Department U.S. Nuclear Regulatory Comission

= Public Utilities.Comission Post Office Box 181 1180 East Broad Street-Shippingport, Pennsylvania 15077 i

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' Columbus, Ohio 143266-0573.

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.' Director,; Pennsylvania Emergency

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- REQUEST FOR ADDITIONAL INFORMATION O

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- It:is our understanding that the current method for setting the LTOP setpoint for Beaver Valley, Unit i relies upon manual action ~ by the operator. Please describe the procedures that are.to be followed and any

. guidance that will be-available to ^.he operator for this action.- Also, identify-the number of times during a shutdown or startup the operator will readjust the setpoint.

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For-Unit 2, the LTOP setpoint is adjusted automatically as a function of

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. temperature. Please describe your plans and schedule for similar automatic ~setpoint-changing =for Unit 1.

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