ML20043A334
| ML20043A334 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 05/14/1990 |
| From: | Helwig D PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| RTR-REGGD-01.097, RTR-REGGD-1.097 NUDOCS 9005210213 | |
| Download: ML20043A334 (2) | |
Text
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l PHILADELPHI A ELECTRIC COMPANY NUCLEAR GROUP HEADQUARTERS l 1
955-65 CHESTERBROOK BLVD. l WAYNE, PA 19087 5691 ;
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OAvro n.HELwto d vice ens.insur a v e 6. . . = =. . . . m. a .. . v .c . . May 14,'1990 Docket'Nos. 50-277 50-278?
U.S. Nuclear Regulatory Commission Attn Dot % ment Control Desk '
Washington, DC 20555
SUBJECT:
Schedule for Compliance with Regulatory Guide (RG).1.97 for Neutron Monitoring Instrumentation at Peach Bottom Atomic Power Station, Units 2 and 3
REFERENCE:
- 1. Correspondence dated January 15, 1988 R. E. Martin, NRC to E. G. Bauer, PECo
- 2. Correspondence dated July 18, 1988 J. W. Gallagher, PECo to W. R. Butler, NRC
- 3. Correspondence and Safety Evaluation' Report dated January 29, 1990, F. J. Miraglia, NRC to S. D. Floyd, BWROG Chairman
Dear Sir:
In the Reference 1 letter, the NRC requested Philadelphia Electric Company (PECo) to install Neutron Monitoring instrumentation that meets the Category 1 requirements of RG 1.97 at
[ Peach Bottom by Atomic Power, Station, Units 2 and 3 once such equipment
(- is' developed industry. PECo subsequently endorsed a BWR Owners Group (BWROG) Licensing Topical _ Report which was submitted.to the NRC cn April 1, instrumentation requirements. 1988,' proposing alternative Neutron Monitoring PECo stated in the Reference 2 letter that after the NRC issues its position on the BWROG. proposal, PECo would address Peach Bottom Atomic Power Station Neutron Monitoring u
instrumentation changes and a schedule for the changes, as appropriate. In the Reference 3 letter, the NRC rejected the BWROG proposal and restated its position that Neutron Monitoring instrumentation including environmental must satisfy RG 1.97 Category l requirements, 100 percent rated power. qualification, and have a range of 10E-6 to
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PDR ADOCK 05000277 P PDC L i 'm - '
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U.S. NuclCor R;gulctcry Commiccicn l May 14, 1990 j P:g3 2 Reference 3 raises questions regarding the design criteria [
(i.e. , accident / qualification parameters) which. upgraded Neutron Monitoring equipment must meet. We understand that the NRC is developing some clarifications of the Reference 3 Safety Evaluation ;
Report. A BNROG subcommittee has been organized to develop- r appropriate design criteria for upgraded Neutron Monitoring equipment to meet RG 1.97 recommendations. These design criteria are prerequisites to evaluating the available alternatives for. t meeting RG 1.97 recommendations for Neutron Monitoring instrumentation. PECo is participating in this effort. The design j
criteria will be provided to the NRC by the BWROG for review and ,
concurrence. ,
Since NRC clarifications and design criteria are being developed, PECo proposes to provide its response.on this issue three f months after NRC concurrence with the BWROG developed design criteria. The additional time for providing our response will ;
result-in a more practical and effective response to this NRC '
request. '
Should you have any questions or require additional Information, please do not hesitate to contact us. l
, very truly yours, :
,A - - -
cc: T. T. Martin, Administrator, Region I, USNRC i J. J. Lyash, USNRC Senior Resident Inspector
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