ML20214F556
| ML20214F556 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 05/18/1987 |
| From: | Muller D Office of Nuclear Reactor Regulation |
| To: | Spangenberg F ILLINOIS POWER CO. |
| Shared Package | |
| ML20214F558 | List: |
| References | |
| GL-85-06, GL-85-6, NUDOCS 8705260148 | |
| Download: ML20214F556 (3) | |
Text
4 May 18, 1987 Docket No. 50-461
- Mr. Frank A. Spangenberg Manager - Licensing and Safety Clinton Power Station P.O. Box 678
' Mail Code V920 Clinton, Illinois 61727
Dear Mr. Spangenberg:
SUBJECT:
CLINTON: SAFETY EVALUATION ON COMPLIANCE WITH~ALTERATE R0D INJECTION SYSTEM REQUIREMENT OF ATWS RULE (10 CFR 50.62)
The ATWS Rule (10 CFR 50.62, " Requirements for Reduction of Risk from Anticipated Transients Without Scram (ATWS) Events for Light-Water-Cooled Nuclear Power Plants") requires improvements in the design and operation of commercial nuclear power facilities to reduce the likelihood of failure to shutdown the reactor following anticipated transients, and to mitigate the consequences of an ATWS event. The requirements for boiling water reactors are to install an alternate rod injection (ARI) system and a standby liquid control system (SLCS) and to trip the reactor coolant recirculating pumps automatically under conditions indicative of an ATWS.
In the Clinton Safety Evaluation Report (SER) Suppletaent No. 7 dated September 1986, the staff has concluded that the licensee's design for the SLCS was acceptable.
In SER Supplement No. 6 dated July 1986, the staff has concluded that the ATWS recirculation pump trip design was acceptable.
The enclosure contains the staff's Safety Evaluation of ARI which is based on your submittals dated October 16, 1985 and March 5, 1987. The staff has reviewed this information and concluded that the ARI design is in compliance with the ATWS Rule, and is therefore acceptable. As mentioned in Section 6 of the enclosure the staff is developing guidance for ARI Technical Specifications which will be provided at a later date.
Region III will verify installation and implementation and effectiveness of quality controls described in Generic Letter 85-06 for the design improvements required under the ATWS Rule to mitigate the consequences of an ATWS event.
8705260148 870518 PDR ADOCK 05000461 eP PDR
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If you have any questions,regarding this Safety' Evaluation please contact the Project Manager, for your facility, Byron Siegel at (301)-492-7764..
Sincerely, Original signed.by/
Daniel R. Muller, Director Project Directorate III-2 Division of Reactor Projects - III, IV,-
V:and.Specfal Projects 3
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Enclosure:
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cc:
Mark Jason Mr. Donald Schopfer Assistant Attorney General Project Manager j
Public Utilities Division Sargent & Lundy EngineFrs Office of the Attorney General 55 East Monroe Street State of Illinois Center Chicago, Illinois 60603 100 West Randolph Street - 12th Floor Chicago, Illinois 60601 Mr. L. Larson Project Manager Mr. D. P. Hall General Electric Company Vice President 175 Curtner Avenue, N/C 395 Clinton Power Station San Jose, California 95125 P. O. Box 678 Clinton, Illinois, 61727 Regional Administrator, Region III 799 Roosevelt Road Mr. Wilfred Connell Glen Ellyn, Illinois 60137 Manager-Nuclear Station Engineering Opt.
Clinton Power Station Richard B. Hubbard P. O. Box 678 Vice President Clinton, Illinois 61727 Technical Associates, 1723 Hamilton Avenue - Suite K Sheldon Zabel, Esquire San Jose, California 95125 Schiff, Hardin & Waite 7200 Sears Tower Chairnan of Dewitt County 233 Wacker Drive e/o County Clerk's Office l
Chicago, Illinois 60606 DeWitt County Courthouse Clinton, Illinois 61727 Resident Inspector U. S. Nuclear Regulatory Commission Illinois Department of Nuclear Safety RR 3, Box 229 A
-Division of Engineering Clinton, Illinois 61727 1035 Outer Park Drive, 5th Floor Springfield, Illinois 62704 I