ML20210U136

Forwards Request for Addl Info Re Amend 11 to FSAR & Concerning Control Room Isolation on High Radiation (Confirmatory Item 46 in Sser 1).Response Requested within 45 Days

ML20210U136
Person / Time
Site:	Beaver Valley
Issue date:	05/23/1986
From:	Tam P Office of Nuclear Reactor Regulation
To:	Carey J DUQUESNE LIGHT CO.
References
TAC-62933, NUDOCS 8606020182
Download: ML20210U136 (4)

Text

.

! A May 23,1986 ,

Docket No. 50-412 DISTRIBUTION N, P. Tam NRC POR D. Miller

. Local PDR ACRS (10) ,

Mr. J. J. Carey, Vice President PAD #2 Rdg F. Burrows ,

Duquesne Light Company T. Novak Gray File Nuclear Group OELD N. Thompson, DHFT '

1 Post Office Box 4 E. Jordan F. Rosa Shippingport, PA 15077 B. Grimes  :

J. Partlow i

Subject:

Beaver Valley Unit 2 - Request For Additional Information On ,

Control Room Isolation By Amendment No. 11 to the FSAR, and by letter dated April 1, 1985, you provided information related to control room isolation on high radiation.

In addition, staff reviewers, during a site visit held on May 6,19P6, obtained additional information and design documentation.

Our review of the subject matter is ongoing and is being tracked by confirmatory  ;

item 46 in SSER-1. The enclosure documents our additional information need.

Please respond within 45 days of receipt of this letter.

This information request affects fewer than 10 respondents, therefore, OMB clearance is not required under P.L.96-511.

Sincerely, Peter S. Tam, Project Manager PWR Project Directorate #2 Division of PWR Licensing-A Office of Nuclear Reactor Regulation

Enclosure:

As stated j l

cc: See next page i )

1 L 2 PM: PAD # D: PAD #2

, ler PTam:h DMcDonald 5/ 86 5/f.3/8 546/86 s

8606020182 860523 2 PDR ADOCK 0500 E

. _ ~ _ ._ ._

b Mr. J. J. Carey Duquesne Light Company Beaver Vallev 2 Power Station 1

cc: .

Gerald Charnoff, Esq. Mr. R. E. Martin, Manager Jay E, Silberg, Esq. Regulatcry Affairs Shaw, Pittman, Potts & Trowbridge Duquesne Light Company 1800 M Street, N.W. Beaver Valley Two Project Washington, DC 20036 P. O. Box 328 Pittsburgh, Pennsylvania 15077 Mr. C. W. Ewing, Quality Assurance Zori Ferkin Manager Assistant Counsel Quality Assurance Department Governor Energy Council Cuquesne Light Company 1625 N. Front Street P. O. Box 186 Harrisburg PA 15105 Shippingport, Pennsylvania 15077 Director, Pennsylvania Emergency Management Agency Room B-151 Transportation & Safety Building Harrisburg, Pennsylvania 17120 Mr. T. J. Lex Mr. Thomas Gerusky Westinghouse Electric Corporation Bureau of Radiation Protection Power Systems PA Department of Environmental P. O. Box 355 Resources Pittsburgh, Pennsylvania 15230 P. O. Box 2063 Harrisburg, Pennsylvania 17120 Mr. P. RaySircar Stone & Webster Engineering Corporation BVPS-2 Records Management Supervisor P. O. Box 2325 Duquesne Light Company Boston, Massachusetts 02107 Post Office Box 4 Shippingport, Pennsylvania 15077 Mr. W. Troskoski U. S. NRC John A. Lee, Eso.

P. O. 181 Duquesne light Company Shippingport, Pennsylvania 15077 1 0xford Centre '

301 Grant Street Mr. Thomas E. Murley, Regional Admin. Pittsburgh, Per.nsylvania 15279 U. S. NRC, Region 1 631 Park Avenue King of Prussia Pennsylvania 15229 i

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.L ENCLOSURE BEAVER VALLEY UNIT 2 RE00EST FOR ADDITIONAL INFORMATION RELATED TO CONTROL ROOM ISOLATION ON HIGH RADIATION Currently, the staff is conducting a detailed design review of the automatic initiation of control room isolation on a high radiation sfonal. In an April 1,1986, letter from the applicant and during a meeting with the staff held on May 6, 1986, some detailed information and design documentation were provided.

In order for the staff to complete its review, the following additional informa-tion should be provided:

1. Written confirmation that the applicant will modify the design to eliminate all test switches similar to switch "2-6125" shown on Drawing 12241-E-11JP-SH-1 which could be used to bypass or render inoperable the portion of the system associated with inputs from the radiation monitors.

2. Provide detailed schematics which show the contact development for radia-

. tion monitors 2RMC*2Q201 and 202.

3. Provide detailed schematics which show the contact development for all control switches (such as "1-HVCAD") associated with the control room isolation.

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4. Since our review indicates that draft revisions to FSAR Chapter 7 logic diagrams (Figure 7.2-1, Sheet 8 and 7.3-13) provided in the applicant's April 1,1986, letter do not agree with the detailed schematics provided thus far for our review, provide either correct logic diagrams and/or detailed schematics to eliminate this conflict.

5. Our review indicates that Drawing 11700-RE-21ML-3 does not reflect the design changes related to the interface between Unit I control room isolation and Unit 2 control room isolation circuitry. Provide a detailed schematic or later revision to Drawing 11700-RE-21ML-3 which shows this interface.

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