ML20056F998
| ML20056F998 | |
| Person / Time | |
|---|---|
| Site: | 05200003 |
| Issue date: | 08/05/1993 |
| From: | Kenyon T Office of Nuclear Reactor Regulation |
| To: | Liparulo N WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| References | |
| NUDOCS 9309010136 | |
| Download: ML20056F998 (5) | |
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UNITED STATES
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WASHINGTON, D.C. 20555 0001
%.....f August 5, 1993 Docket No.52-003 Mr. Nicholas J. Liparulo Nuclear Safety and Regulatory Activities Westinghouse Electric Corporation P.O. Box 355 Pittsburgh, Pennsylvania 15230
Dear Mr. Liparulo:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION (RAI) ON THE AP600 As a result of its review of the June 1992 application for design certifica-tion of the AP600, the staff has determined that it needs additional informa-tion in order to complete its review. The additional information is needed in the area of reactor systems (440.35).* Enclosed is the staff's question.
Please respond to this request within 90 days of the date of receipt of this letter.
You have requested that portions of the information submitted in the June 1992 application for design certifica. tion be exempt from mandatory public disclo-sure. While the staff has not completed its review of your request in accordance with the requirements of 10 CFR 2.790, that portion of the submit-ted information is being withhe'Id from public disclosure pending the staff's final determination. The staff concludes that this RAI does not contain those portions of the information for which exemption is sought. However, the staff will withhold this letter from public disclosure for 30 calendar days from the date of this letter to allow Westinghouse the opportunity to verify the staff's conclusions.
If, after that time, you do not request that all or portions of the information in the enclotures be withheld from public disclo-sure in accordance with 10 CFR 2.790, this letter will be placed in the Nuclear Regulatory Commission's Public Document Room.
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9309010136 30805
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Mr. Nicholas J. Liparulo August 5, 1993 This RAI affects nine or fewer respondents, and therefore, is not subject to review by the Office of Management and Budget under P.L.96-511.
If you have any questions regarding this matter, you can contact me at (301) 504-1120.
Sincerely, (Original signed by)
Thomas J. Kenyon, Project Manager Standardization Project Directorate Associate Director for Advanced Reactors and License Renewal Office of Nuclear Reactor Regulation
Enclosure:
As stated cc w/ enclosure:
See next page DISTRIBUTION:
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- PDR RBorchardt TEssig TKenyon RHasselberg TGody, Jr., ED0 JMoore, 15B18 MSiemien, 15B18 PShea Alevin, 8E23 MRubin, 8E23 LShotkin, NLN 353 F0dar, NLN 353 RJones, 8E23 ACRS (11) w/o encl.
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DOCUMENT NAME: SRXB.RAI 1
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e Mr. Nicholas J. Liparulo Westinghouse Electric Corporation Docket No.52-003 AP600 i
cc:
Mr. B. A. McIntyre Advanced Plant Safety & Licensing Westinghouse Electric Corporation Energy Systems Business Unit P.O. Box 355 Pittsburgh, Pennsylvania 15230 Mr. John C. Butler Advanced Plant Safety & Licensing Westinghouse Electric Corporation l
Energy Systems Business Unit Box 355 Pittsburgh, Pennsylvania 15230 i
Mr. M. D. Beaumont Nuclear and Advanced Technology Division Westinghouse Electric Corporation l
One Montrose Metro 11921 Rockville Pike l
Suite 350 Rockville, Maryland 20852 Mr. Sterling Franks U.S. Department of Energy NE-42 Washington, D.C.
20585 Mr. S. M. Modro EG&G Idaho Inc.
Post Office Box 1625 Idaho Falls, Idaho 83415 i
Mr. Steve Goldberg Budget Examiner 725 17th Street, N.W.
Room 8002 Washington, D.C.
20503 i
Mr. Frank A. Ross U.S. Department of Energy, NE-42 Office of LWR Safety and Technology 19901 Germantown Road Germantown, Maryland 20874
REQUEST FOR ADDITIONAL INFORMATION ON THE WESTINGHOUSE AP600 440.35 Chapter 15 of the SSAR references the NOTRUMP small break LOCA model and the LOFTRAN transient analysis model as the methodologies that were used to evaluate small break LOCA and transient events for the l
AP600. To facilitate its review of Chapter 15, the staff was provided with documentation describing contemporary approved versions of these methodologies. This documentation does not describe model features j
that address design and behavior phenomena specific to the AP600 design.
Provide information that describes the AP600-specific ver-sions of LOFTRAN and NOTRUMP.
Identify features that differentiate the AP600-specific versions of these codes from the versions approved for the analysis of conventional Westinghouse designs.
Include a l
comprehensive discussion of the Westinghouse provisions for code qualification of these methodologies for application to the AP600 design, identifying specific methods of qualification and schedules for completion.
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Enclosure
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