ML20214J666
| ML20214J666 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 11/20/1986 |
| From: | Sells D Office of Nuclear Reactor Regulation |
| To: | Andrews R OMAHA PUBLIC POWER DISTRICT |
| References | |
| NUDOCS 8612010386 | |
| Download: ML20214J666 (4) | |
Text
November 20, 1986 Distribution SDocket File d h NThompson Docket No. 50-285 i
NRC/ Local PDR PKreutzer PBD-8 Reading DSells FMiraglia ACRS (10)
Mr. R. L. Andrews OGC-Bethesda LBeltracchi Division Manager - Nuclear Froduction EJordan Omaha Public Power District BGrimes 1623 Harney Street JPartlow Omaha, Nebraska 68102 Gray File 3.3a
Dear Mr. Andrews:
SUB. JECT:
SAFETY PARAMETER DISPLAY SYSTEM The staff has completed its review of your submittals dated December 7, 1984, November 8 and December 9, 1985, and August 20, 1986 dealing with the Fort Calhoun Station Safety Parameter Display System (SPDS) isolation devices.
As a result of our review, the staff has determined that the information provided did not address the isolation devices in the detail required by the staff to complete the review.
The additional information required to complete the review is identified in the enclosure.
It is requested that you provide the information requested within 30 days of your receipt of this letter or provide a date that you can meet within 15 days.
The request for information contained in this letter affects fewer than 10 respondents; therefore, OMB clearance is not required under P.L.96-511.
Please contact me at (301) 492-8144 if you have any questions concerning this request.
Sincerely,
/S/
Donald E. Sells, Project Manager PWR Project Directorate #8 Division of PWR Licensing-B
Enclosure:
Request for Additional Information cc w/ enclosure:
See next page
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PBf PBD-8; PBD-8:
P4peber DSells: Jch AThadani 11/g/86 11/fD/86 11/ps6 l
8612010386 861120 PDR ADOCK 05000285 P
e Mr. R. L. Andrews Fort Calhoun Station Omaha Public Power District Unit No. 1 cc:
Harry H. Voigt, Esq.
LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Avenue, NW Washington, D.C.
20036 Mr. Jack Jensen, Chairman Washington County Board of Supervisors Blair, Nebraska 68008 Metropolitan Planning Agency ATTN: Dagnia Prieditis 7000 West Center Road Omaha, Nebraska 68107 s
Mr. Phillip Harrell, Resident Inspector '
U.S. Nuclear Regulatory Commission x
P. O. Box 309 Fort Calhoun,liebraska 68023 s
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Mr. Charles B. Brinkman, Manager Washington Nuclear Operations C-E Power Systems 7910 Woodmont Avenue Bethesda, Maryland 20814 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission s
Office of Executive Director for Operations 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Harold Borchert, Director Division of Radiological Health Department of Health 301 Centennial Mall, South P.O. Box 95007 Lincoln, Nebraska 68509 i
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'6 REQUEST FOR ADDITIONAL INFORMATION FORT CALHOUN STATION, UNIT N0. 1 SAFETY PARAMETER DISPLAY SYSTEM Each operating reactor shall be provided with a Safety Parameter Display System (SPDS). The Commission approved requirements for an SPDS are defined in NUREG-0737, Supplement No. 1.
In the Regional workshops on Generic Letter 82-33, held during March 1983, the NRC discussed these requirements and the staff's review of the SPDS.
The staff reviewed the SPDS safety analysis and supplemental documents provided by Omaha Public Power District (References 1, 2, 3 & 4). The information did not address the isolation devices in the detail required by the staff. The following additional information is needed to continue and complete the review:
1.
Reference 4 described an analysis performed with respect to the energy source within the analog termination cabinets. Provide the analysis for staff review. The response should include circuit diagrams of the cabinets showing the numerical values of the voltages present and the potential driving current associated with each voltage.
2.
Reference 1 contained Enclosure 10 which is a very brief description of the GA buffer amplifier Model BA-1A. The enclosure stated that the amplifier output may be shorted to AC line voltages without affecting the input signals. Provide more detail with respect to this ability of the Emplifier. The response should include the basis for the statement, the potential driving current available during...the test (if tested) and the pass / fail criteria used-to determine that the input signals were not affected.
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1 References u
1.
Letter dated December 7, 1984 from R. L. Andrews (0 PPD) to J. R. Miller (NRC), " Safety Parameter Display System."
2.
Letter dated November 8,1985 from R. L. Andrews (OPPD) to E. J. Butcher (NRC), " Safety Parameter Display System (SPDS) Isolation Devices."
3.
LetterdatedDecember9,1985fromR.L.Andrews(OPPD)toA.C.Thadani (NRC), " Safety Parameter Display System (SPDS) Isolation Devices."
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4.
Letter dated August 20, 1986 from R. L. Andrews (OPPD) to A. C. Thadani (NRC), " Safety Parameter Display System (SPDS) Isolation Devices."
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