ML20043A334

Advises of Util Proposal to Provide Response to NRC Request for Schedule for Compliance W/Reg Guide 1.97 Re Neutron Monitoring Instrumentation 3 Months After NRC Concurrence W/Bwr Owners Group Design Criteria

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)

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.o A-l PHILADELPHI A ELECTRIC COMPANY NUCLEAR GROUP HEADQUARTERS l

1 955-65 CHESTERBROOK BLVD.

l WAYNE, PA 19087 5691 a m.......

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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

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Peach Bottom Atomic Power, Station, Units 2 and 3 once such equipment is' developed by industry.

PECo subsequently endorsed a BWR Owners

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Group (BWROG) Licensing Topical _ Report which was submitted.to the NRC cn April 1, 1988,' proposing alternative Neutron Monitoring instrumentation requirements.

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 instrumentation changes and a schedule for the changes, as u

appropriate.

In the Reference 3 letter, the NRC rejected the BWROG proposal and restated its position that Neutron Monitoring instrumentation must satisfy RG 1.97 Category l requirements, including environmental 100 percent rated power. qualification, and have a range of 10E-6 to

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U.S. NuclCor R;gulctcry Commiccicn May 14, 1990 j

P:g3 2 Reference 3 raises questions regarding the design criteria

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(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 j

instrumentation.

PECo is participating in this effort.

The design 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 l

Information, please do not hesitate to contact us.

very truly yours,

,A T. T. Martin, Administrator, Region I, USNRC cc:

i J. J. Lyash, USNRC Senior Resident Inspector

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