ML20155A500

Forwards RAI Re 980812 Requests for TS Amend That Would Update List of Documents,Which Describe Analytical Methods Used to Determine Core Operating Limits.Info Requested by 981113

ML20155A500
Person / Time
Site:	Millstone
Issue date:	10/22/1998
From:	Mcdonald D NRC (Affiliation Not Assigned)
To:	Bowling M, Loftus P NORTHEAST NUCLEAR ENERGY CO.
References
TAC-MA3410, NUDOCS 9810290151
Download: ML20155A500 (5)

Text

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October 22, 1998 Mr. Mrrtin L. Bowling, Jr.

Rtcoviry Officer - Technical Servicss

. Northeast Nuclear Energy Company clo Ms. Patricia A. Loftus Director- Regulatory Affairs P.O. Box 128 Waterford, CT 06385

SUBJECT:

' REQUEST FOR ADDITIONAL INFORMATION REGARDING TECHNICAL SPECIFICATION AMENDMENT REQUEST- MILLSTONE NUCLEAR POWER STATION, UNIT NO. 2 (TAC NO. MA3410)

Dear Mr,

Bowling:

By letter dated August 12,1998, Northeast Nuclear Energy Company (NNECO) requested a Technical Specification (TS) amendment that would update the list of documents, which describe the analytical methods used to determine the core operating limits, specified in TS 6.9.1.8b. The plant-specific analysis used by NNECO for the steamline break utilizes the revised Siemens Power Corporation methodology, which is currently being reviewed by the NRC staff.

The NRC staff has completed a preliminary review of your request and has identified issues that require additionalinformation. Please respond to the enclosed request for additionalinformation by November 13,1998, which was ageed to by Ravi Joshi of your staff. Should a situation occur that would prevent you from meeting this due date, please contact me at 301-415-1408. I Sincerely, l Original signed by:

Daniel G. Mcdonald Jr., Senior Project Manager Millstone Project Directorate j Division of Reactor Projects - 1/11 1 Office of Nuclear Reactor Regulation )

Docket No. 50-336

Enclosure:

As stated cc w/ encl: See next page DMcDonald ACRS l PUBLIC WDean SSun, SRXB r MSPD Reading JZwolinski Elmbro JDurr, RI hPD )

LBerry OGC DOCUMENT NAME: G:\ Mcdonald \MA3410.RAI To receive a copy of this document, indicate in the box "C" co py wlo attachtenci "E" copy w/ attach /enci "N" no copy OFFICE JNfpDfM MSPD-LA O MSPD:D NAME I nald LBerry b WDean[llh DATE l# F.498 [0 / i 98 [0/N/98 OFFICIAL RECORD COPY

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October 22, 1998 Mr. Martin L. Bowling, Jr.

Recovery Officer - Technical Services Northeast Nuclear Energy Company c/o Ms. Patricia A. Loftus Director- Regulatory Affairs P.O. Box 128 Waterford, CT 06385

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION REGARDING TECHNICAL SPECIFICATION AMENDMENT REQUEST- MILLSTONE NUCLEAR POWER STATION, UNIT NO. 2 (TAC NO. MA3410)

)

Dear Mr. Bowling:

By letter dated August 12,1998, Northeast Nuclear Energy Company (NNECO) requested a Technical Specification (TS) amendment that would update the list of documents, which describe the analytical methods used to determine the core operating limits, specified in TS 6.9.1.8b. The plant-specific analysis used by NNECO for the steamline break utilizes the revised Siemens Power Corporation methodology, which is currently being reviewed by the NRC staff.

The NRC staff has completed a preliminary review of your request and has identified issues that require additionalinformation. Please respond to the enclosed request for additionalinformation {

by November 13,1998, which was ageed to by Ravi Joshi of your staff. Should a situation occur that would prevent you from meeting this due date, please contact me at 301-415-1408.

Sincerely, l l

m- .k Daniel G. Mcdonald Jr., Senior Project Manager Millstone Project Directorate Division of Reactor Projects - t/II Office of Nuclear Reactor Regulation Docket No. 50-336

Enclosure:

As stated I cc w/ encl: See next page I l

l i

REQUEST FOR ADDITIONAL INFORMATION MILLSTONE NUCLEAR POWER STATION. UNIT NO. 2 DOCKET NO. 50-336

1. The values assumed in the steamline break (SLB) analysis are listed in Table 3.1 (EMF-98-036) for the thermal-hydraulic parameters and in Table 3.3 for the different trip setpoints and delay times for actuation of various safety-related systems. The values are different from the current Final Safety Analysis Report (FSAR) values listed in FSAR Tables 14.1.5-3 and 14.1.5-4. The break size for the limiting case is also different from the FSAR value.

Please identify all the changes to the input parameters that are important to the results of the SLB analysis and provide the technical basis to demonstrate the acceptance of each change.

2. The results of the analysis indicate that 0.5 percent of the fuelin the core will fail during an SLB event while the FSAR SLB calculations show no fuel failure.

Please provide technical basis to show the acceptance of the proposed SLB analysis with fuel failure. In addition, provide an example calculation to show that the fuel failure will be limited to 0.5 percent of the fuelin the core due to fuel centerline melt.

1 I

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1 1

Enclosure

(

Millstone Nuclear Power Station Unit 2 cc:

Lillian M. Cuoco, Esquire Mr. F. C. Rothen Senior Nuclear Counsel '

Vice President - Work Services Northeast Utilities Service Company Northeast Utilities Service Company P. O. Box 270 P. O. Box 128 Hartford, CT 06141-0270 Waterford, CT 06385 Mr. John Buckingham Emest C. Hadley, Esquire Department of Public Utility Control 1040 B Main Street Electric Unit P.O. Box 549 10 Liberty Square West Wareham, MA 02576 New Britain, CT 06051 Mr. John F. Streeter Edward L Wilds, Jr., Ph.D. Recovery Officer - Nuclear Oversight Director, Division of Radiation Northeast Utilities Service Company Department of Environmental Protection P. O. Box 128 79 Elm Street Waterford, CT 06385 Hartford, CT 06106-5127 Mr. John Carlin Regional Administrator, Region l Vice President - Human Services U.S. Nuclear Regulatory Commission Northeast Utilities Service Company 475 Allendale Road P. O. Box 128 King of Prussia, PA 19406 Waterford, CT 06385 First Selectmen Mr. Allan Johanson, Assistant Director '

Town of Waterford Office of Policy and Management l 15 Rope Ferry Road Policy Development and Planning 4 Waterford, CT 06385 Division

{

450 Capitol Avenue - MS# 52ERN '

Mr, Wayne D. Lanning, Director P. O. Box 341441 Millstone Inspections Hartford, CT 06134-1441 )

Office of the Regional Administrator l 475 Allendale Road Mr. M. H. Brothers King of Prussia, PA 19406-1415 Vice President - Operations Northeast Nuclear Energy Company Charles Brinkman, Manager P.O. Box 128 Washington Nuclear Operations Waterford, CT 06385 ABB Combustion Engineering 12300 Twinbrook Pkwy, Suite 330 Mr. J. A. Price l Rockville, MD 20852 Director- Unit 2 I Northeast Nuclear Energy Company Senior Resident inspector P.O. Box 128 Millstone Nuclear Power Station Waterford, CT 06385 c/o U.S. Nuclear Regulatory Commission P.O. Box 513 Niantic, CT 06357 i

Millstone Nuclear Power Station Unit 2 cc:

Mr. B. . D. Kenyon (Acting) , Attomey Nicholas J. Scobbo, Jr.

Chief Nucler Officer- Millstone Ferriter, Scobbo, Caruso, Rodophele, PC Northeast Nuclear Energy Company 1 Beacon Street,11th Floor P O. Box 128 Boston, MA 02108 Waterford, CT 06385 Mr. J. P. McElwain Citizens Regulatory Commission Recovery Officer- Millstone Unit 2 ATTN: Ms. Susan Perry Luxton Northeast Nuclear Energy Company 180 Great Neck Road P. O. Box 128 Waterford, CT 06385 Waterford, Connecticut 06385 Deborah Katz, President Citizens Awareness Network P, O. Box 83 Shelbume Falls, MA 03170 i

The Honorable Terry Concannon Co-Chair Nuclear Energy Advisory Council Room 4035 ,

Legislative Office Building '

Capitol Avenue Hartford, CT 06106 Mr. Evan W. Woollacott Co-Chair Nuclear Energy Advisory Council 128 Terry's Plain Road Simsbury, CT 06070 l i

Little Harbor Consultants, Inc.  ;

Millstone -ITPOP Project Office P. O. Box 0630 Niantic, CT 06357-0630 Mr. Daniel L. Curry Project Director Parsons Power Group inc.

2675 Morgantown Road Reading, PA 19607

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