ML20095J345
| ML20095J345 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 04/28/1992 |
| From: | Miller D PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| CNN-92-14057, NUDOCS 9205010258 | |
| Download: ML20095J345 (2) | |
Text
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CCN 42-140s7 1*lill.ADELPillA ELECTitlC COMPANY
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u Pl.ACil 11011 0 41 AIUMIC INER ST ATION
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R D LIhn XM kq f1W Dt lu, ltim9harua 17314 re.u u aur:1tm1Ha ros s a tie s u s tism I 71Wm4 D B. Mplet. P.
W e h M '"I Apri1 2R 1992 3
Docket Hos. 50-277 50-278 U. S. Nuclear Regulatory Commission ATTH: Document Control Desk Washington, DC 20555
SUBJECT:
Plans for Installing Emergency Service Water flow Measuring l
Instrumentation l
REFERENCE:
NRC Combined Inspection 50-277/91-31; 50-278/91-3i, Emergency Service Water System inspection The following is provided in response to your request in the referenced report concerning a special inspection of our Emergency Service Water (ESW) l system. The request was to provide to the NPC the ritatus of PECo plans for i
installing flow instrumeatation that would allow for more precise flow monitoring of ESW.
A modification was initiated in November 1991 to evaluate the feasibility j
of installing permanent flow instrumentation on the ESW system.
Tnis modification has been approved to begin conceptual design. lhe modification i
team has been studying the options available for instrumenting the supply and/or return piping for selected ESW loads.
The evaluation of the flow meter options includes aspects such as instrument accuracy, installation costs, ease of use, ccmpatibility with raw water systems, maintenance / calibration requirements, equipment qualification and pcwer requirements.
It is expected that this study will be complete in the 3rd quarter of 1992. The results will then be presented to station management for final approval Based on approval of the conceptual design, it is expected that flow instrumentation will be installed during the 9th refueling outage for Unit 3 and the 10th refueling outage for Unit 2.
Currently, these outages are l
scheduled for the 4nd quarter of 1993 and the 4th quarter of 1994 respectively.
g Sincerely,
//
,a 9205010250 920428 PDR ADOCK 05000277
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Document Control Desk
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cc:
R. A. Burricelli, Public Service Electric & Gas T. M. Gerusky, Commonwealth of Pennsylvania J. J. Lyash, USNRC Senior Resident Inspector T. T. Martin, Administrator, Recion I. USNRC H. C. Schwemm. Atlantic Electric R. I. McLean, State of Maryland C. D. Schaefer, Delmarva Power bcc: J. W. Austin A4-4N, Peach Bottom J. A. Basilio 52A-5, Chesterbrook G. J. Beck 52A-5, Chesterbrook J. A. Bernstein 51A-13, Chesterbrock R. N. Charles 51A-1, Chesterbrook Commitment Coordinator 52A-5, Chesterbrook Correspondence Control Program 618-3, Chesterbrook J. B. Cotton 53A-1, Chesterbrook G. V. Cra.nr.lon 638-5, Chesterbrook E. J. Collen 323-1 Main Office A. D. Dices A3-15, Peach Bottom A. A. Fulvio A4-4N, Peach Cottom D. R. Helwig 51A-11. Chesterbrook C. J. McDermott S13-1, Main Office D. B. Miller, Jr.
SMO-1, Peach Bottom PB Nuclear Records A4-2S Peach Bottom K. P. Powers A4-15, Peach Bottom J. M. Pratt B-2-S, Peach Bnttom J. T. Robb 51A-13. Chesterbrook D. M. Smith 52C-7, Chesterbrook l
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