ML19347F178
| ML19347F178 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 04/30/1981 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Abel J COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML19347F179 | List: |
| References | |
| LSO5-81-04-053, LSO5-81-4-53, NUDOCS 8105150421 | |
| Download: ML19347F178 (2) | |
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APR'3 0 W niC2iBUTION:
LPDR Docket do. 50-10 TERA LS05 04-053 NSIC ORB #5 RF DEisenhut Glainas Mr. J. S. Abel HSmith Director of Nuclear Licensing P0'Connor Cormer. wealth Edison Cospany OELD Post Office Box 767 OI&E (3)
Chicago, Illinois 60690 ACRS (10)
Gray File Desr Mr. / bel:
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We have completed our review of your February 1. June li, and June 30, 1980 responses to our August 8,1979 request for analyses related to the Adequacy of St; tion electric distribution system voltages at Dresden Unit 1.
We have determined that you have acceptably demonstrated, by analysis, that the Class lE equipment tardnal voltages remain within operating limits for the postulated wust core conditions. By this analysis CECO has shown compliance with General Design Criterion 17. However, as-indicated in our enclosed Safety Evaluatien, we require that Ceco verify the accuracy cf their analysis by carrying out a confirmatory test similar to those previously carried out for Zion Station and Quad Cities Station.
Please provide a schedule for the test verification witnin 30 days of your receipt of this letter.
Sincerely, Dennis M. Crutchfield, Chief Operating Reactors Branch f5 Division of Licensing Tifosure:
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Docket No. 50-10 LS05-81-04-053 APR 3 01981 Mr. J. S. Abel Director of Nuclear Licensing Coninonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690
Dear Mr. Abel:
We have completed our review of your February 1. June 11, and June 30, 1980 respenses to our August 8,1979 request for analyses related to the Adequacy of Station electric distribution sy, tem voltages at Dresden Unit 1.
We have determined that you have acceptably demonstrated, by analysis, that the Class lE equipment terminal voltages remain within operating limits for the postulated worst core conditions.
By this analysis Ceco has shown compliance with General Design Criterion 17. However, as
' indicated in our enclosed Safety Evaluation, we require that CECO verify the accuracy of their analysis by carrying out a confirmatory test similar to those previously carried out for Zion Station and Quad Cities Station.
Please provide a schedule for the test verification within 30 days of your receipt of this letter.
Sincerely.
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f Dennis M.
rutchfield, Mief Operating Reactors Branch #5 Division of Licensing
Enclosure:
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Mr. J. S. Abel ec w/ enclosures:
Isham, Lincoln & Beale Director, Criteria and Standads Counselors at Law Division One First National Plaza. 42nd Floor Office of Radiation Programs Chicago, Illinois 60603 (ANR-460)
U. S. Environmental Protection Mr. B. B. Stephenson Agency Plant Superintendent Washington, D.C.
20460 Dresden Nuclear Power Station Rural Route #1 U. S. Environmental Protection Morris, Illinois 60450 Agency Federal Activities Branch U. 5. Nuclear Regulatory Conn:ssion Region V Office Resident Inspectors Office ATTN: EIS COORDINATOR Dresden Station 230 South Dearborn Street RR di Chicago, Illinois 60604 Morris, Illinois 60450 Susan N. Sekuler Assistant Attorney General Environmental Control Division 188 W. Randolph Street Suite 2315 Cnicago, Illinois 60601 Morris Public Library 604 Liberty Street Morris, Illinois 60451 Chai rman Board of Supervisors of Grundy County Grundy County Courthouse Morris, Illinois 60450 Illinois Department of Nuclear Safety 1035 Outer Part Drive, 5th Floor Springfield, Illinois 62704 e
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