ML20214W789

Submits Addl Info Re Several Values Previously Revised in FSAR & Incorporated in Tech Specs.Encl Westinghouse Ltr DMW-D-6020 Documents That Revised Values Used in Safety Analysis for Facility & Justifies Use in Tech Specs

ML20214W789
Person / Time
Site:	Beaver Valley
Issue date:	06/08/1987
From:	Carey J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
2NRC-7-157, TAC-62942, NUDOCS 8706160184
Download: ML20214W789 (3)

Text

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'Af 2NRC-7-157 Be VWI

o. 2 Unit Project Organization Telecopy 64 Ext.160 P.O. Box 328 June 8, 1987 Shippingport, PA 15077 United States Nuclear Regulatory Commission ATTN:

Document Control Desk Washington, DC 20555

SUBJECT:

Beaver Valley Power Station Unit No. 2 Docket No. 50-412 Technical Specification Additional Information Gentlemen:

During the Staff Review of the Beaver Valley Unit 2 Technical Specifica-tions, the staff requested additional information concerning several values previously revised in the FSAR and incorporated into the Technical Specifica-tions.

These values included:

1)

Use of at 7% AI band 2)

A 2.32 Fq limit 3)

A 0.3 FAH multiplier The attached letter (DMW-D-6020) documents that these revised values were used in the safety analysis for Beaver Valley Unit 2 and justifies the use of these values in our Technical Specifications.

DUQUESNE LIGHT COMPANY By

//

Tl. J.(farey Senior Vice President RTZ/ijr NR/RTZ/TEC/ SPEC Attachment AR/NAR cc: Mr. P. Tam, Project Manager Mr. J. Beall, NRC Sr. Resident Inspector Mr. L. Prividy, NRC Resident Inspector INP0 Records Center 8706160184 870608 PDR ADOCK 05000412 P

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.i Died-D-6020 Box 355

.WegHnghouse PowerSystems Pmstregh Pennsylvania 15230-0355 Electric Corpor8 tion.

May 27,1987 4

NS-PL-14898 Mr. J. A. Kline S.0. Opti-4705 Manager of Engineering and Construction Nuclear Construction Division Ref: DMW-D-5993 SEG Building P. O. Box 328 Shippingport,. Pennsylvania 15077 DUQUESNE LIGHT COMPANY 4

BEAVER VALLEY POWER STATION UNIT NO. 2 J08 ORDER NO. 12241 Safety Analysis Parameters

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Dear Mr. Kline:

1 L

The purpose of this letter is to formally document the telecon held between members of Duquesne Light Company, the Nuclear Regulatory Commission, l

Westinghouse NTSD Licensing and Westinghouse NFD Core Design on May 22, 1987 and to provide follow-up confirmation relative to that discussion. The topic was NRC concern over several values in the proposed Beaver Valley Unit 2 Technical Specifications. The values of concern which are currently in the proposed tech specs are:

f-1) the +/- 7% AI band without APONS requirements; l

)

I 2) the 2.32 Fq limit; 1

3) the 0.3 F-A-H multiplier (which is considered in the generation of the l'

safety limit curves and in the over temperature AT (OTAT) calculations).

i f

The NRC question arose because the utility documentation from several years i

l ago showed different values (+/- 55 AI band, a 2.18 Fq limit, and a 0.2 I,

F-A-H multiplier). Since that time, analyses modifying those values were performed, including safety analyses done by Westinghouse NFD Core Design, Westinghouse NFD Thermal-Hydraulics, Westinghouse NTSD Transient Analysis and Westinghouse NTSD Safeguards Analysis for Beaver Valley Unit 2 Cycle 1.

The analyses reflecting the current Technical Specification values for these parameters are shown in the 8VPS-2 FSAR.

In addition, the NRC issued final draft Technical Specifications containing I

these parameter values were reviewed by the above mentioned functional groups. The review indicated that the current Technical Specification parameters are derived from analyses and evaluations included in the BVPS-2 FSAR. This review conclusion is documented in Reference 1.

Mr. J. A. Kline May 27, 1987 DMW-0-6020 NS-PL-14898 To satisfy NRC concerns, Westinghouse again confirms that the +/- 75 AI band without APDMS requirements, the 2.32 Fq LOCA limit and the 0.3 F-A-H multiplier were used in the safety analyses for Beaver Valley Unit 2, Cycle 1 and that the plant satisfies all safety criteria.

If there are any additional questions, please contact the undersigned.

Very truly yours, WESTINGHOUSE ELECTRIC CORPORATION vaf u T.

Viv-J. N. Steinmetz, Project Manager

~ Duquesne Light Projects J. M. Grigsby/bek/2901n cc:

J. A. Kline (SEG 81dg.), 4L

<J., J r.Carey:(Duquesne : Light),alL~ v m.,

C. O. Richardson, Jr. (S&W), 6L C. E. Ewing (Duquesne Light), IL R. J. Swiderski (Duquesne Light), IL BVPS Records Management (Duquesne Light), IL R. Martin (Duquesne Light), IL T. P. Noonan (Duquesne Light), IL H. W. Ourkin (S&W Site), IL P. C. Talbot (S&W Site), IL M. O'Neill (Duquesne Light), IL

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