ML20235G802
| ML20235G802 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 09/16/1987 |
| From: | Paulson W Office of Nuclear Reactor Regulation |
| To: | Deddens J GULF STATES UTILITIES CO. |
| References | |
| NUDOCS 8709300226 | |
| Download: ML20235G802 (3) | |
Text
September 16, 1987 Docket No.:
50-458 Mr. James C. Deddens Senior Vice President, (RBNG)
Gulf States Utilities Post Office Box 220 St. Francisville, LA 70775 ATTN:
Nuclear Licensing
Dear Mr. Deddens:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION - MODIFICATIONS TO MEET 10 CFR 50.62 (ANTICIPATED TRANSIENTS WITHOUT SCRAM)
The staff has completed its preliminary review of your July 31, 1987 submittal regarding modifications to the River Bend Station to meet 10 CFR 50.62 regarding anticipated transients without scram.
The additional information identified in the enclosure is needed to complete our review of your submittal.
Please provide the requested information within 30 days of the receipt of this letter.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P. L.96-511.
Sincerely, Is1 Walter A. Paulson, Project Manager Project Directorate - IV Division of Reactor Projects - III, IV, V and Special Projects cc:
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- Mr. James C. Deddens-
~ Gulf States Utilities Company River Bend Nuclear Plant I
cc:
Troy B. Conner, Jr., Esq.
Mr. J. E. Booker Conner and Wetterhahn Manager-River Bend Oversight 1747 Pennsylvania Avenue, NW P. O. Box 2951 Washington, D.C..
20006 Beaumont, TX 77704 Mr,. Eddie Grant Mr. William H. Spell, Administrator Director - Nuclear Licensing Nuclear Energy Division Gulf States Utilities Company Office of Environmental Affairs P. O. Box 220 P. O. Box 14690 St. Francisville, LA 70775-Baton Rouge, Louisiana 70898 Richard M. Troy, Jr., Esq.
-Assistant Attorney General in Charge Mr. J. David McNeill, III State of Louisiana Department of Justice William G. Davis, Esq.
234 Loyola Avenue-Department of Justice New Orleans, Louisiana 70112 Attorney General's Office 7434 Perkins Road Resident Inspector Baton Rouge, Louisiana 70808 P. O. Box 1051 St. Francisville, Louisiana 70775 H. Anne P1ettinger 3456 Villa Rose Drive Gretchen R. Rothschild Baton Rouge, Louisiana 70806:
Louisianians for Safe Energy, Inc.
1659 Glenmore Avenue Baton Rouge, Louisiana 70775 President of West Feliciana Police Jury Regional Administrator, Region IV P
0.' Box 1921 U.S. Nuclear Regulatory Commission St. Francisville, Louisiana 70775 Office of Executive Director for Operations Mr. Frank J. Uddo 611 Ryan Plaza Drive, Suite 1000 Uddo & Porter Arlington, Texas 76011 6305 Elysian Fields Avenue Suite 400 Philip G. Harris New Orleans, Louisiana 70122 Cajun Electric Power Coop. Inc.
10719 Airline Highway P. O. Box 15540 Baton Rouge, LA 70895 i
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REQUEST FOR ADDITIONAL INFORMATION ON ATVS REVIEW l
RELATING TO ALTERNATE R0D INJECTION (ARI) AND l
RECIRCULATION PUMP TRIP (RPT) SYSTEMS Provide the following design information as supporting documentation of your method of compliance with 10 CFR 50.62:
1.
The electrical functional diagrams for the ARI and RPT systems from the sensors to the final actuated devices.
2.
The electrical one-line diagram to demonstrate the electrical indepen-dence between the ARI system and the reactor trip system (RTS), and the capability to perform ARI function during the loss-of-offsite power event.
3.
Describe the system design to permit maintenance repairs and test or calibration of the system logic while the plant is still in power operation.
4.
Describe the RPT transfer scheme from primary power supply' to low frequency motor generator (LFMG) power supply, and justify that the present RPT design can perform its function in a reliable manner equivalent to the Monticello design as referenced in the Owner's Group Topical Report.
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