ML20245F318
| ML20245F318 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 04/26/1989 |
| From: | Martin R Office of Nuclear Reactor Regulation |
| To: | Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| References | |
| TAC-72638, TAC-72639, NUDOCS 8905020339 | |
| Download: ML20245F318 (4) | |
Text
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April 26, 1989 s
Docket Nos. 50-277/278 Mr. ' George A. Hunger, Jr.
Director-Licensing Philadelphia Electric Company Correspondence Control Desk P.O. Box 7520 Philadelphia, Pennsylvania 19101
Dear Mr. Hunger:
i
SUBJECT:
SRM, IRM-DETECTOR NOT IN STARTUP POSITION INSTRUMENT CALIBRATION i
(TAC NOS. 72638 AND 72639)
RE:
PEACH BOTTOM ATOMIC POWER STATION, UNITS 2 AND '4 As a result of review of your application for amendment of the Technical Specifications dated March 10, 1989 we find that the additional information as noted in tho enclosure is needed. This information is needed to confirm our understanding of the general description provided in the application.
Sincerely,
/S/
Robert E. Martin, Project Manager Project Directorate I-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation I
Enclosure:
As stated cc w/ enclosure:
See next page DISTRIBUTION w/ enclosure:
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WASHINGTON, D. C. 20555 April 26, 1989 Docket Hos. 50-277/278 Mr. George A. Hunger, Jr.
Director-Licensing Philadelphia Electric Company Correspondence Control Cesk P.O. Box 7520 Philadelphia, Pennsylvania 19101
Dear Mr. Hunger:
SUBJECT:
SRM, IRM-DETECTOR NOT IN STAPTUP FGSITION INSTRUMENT CALIBRATION (TAC NOS. 72638 AND 72639)
RE:
PEACH BOTTOM ATOMIC POWER STATION, UNITS 2 AND 3 As a result of review of your application for amendment of the Technical ~"
Specifications dated March 10, 1989 we find that the additional information as noted in the enclosure is needed. This information is needed to confirm our understanding of the general description provided in the application.
Sincerely, f
NLLv Robert E. Martin, Project Manager Project Directorate 1-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation
Enclosure:
As stated cc w/ enclosure:
See next page
i ENCLOSURE l
REQUEST FOR INFORMATION 1.
PEco's proposal appears to rely on the assumption that the expected limit switch settings during operation, based on a calibration performed sometime during a refueling outage, would not be expected to be significantly different than if these settings were based on calibrations performed within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of startup or shutdown as now required.
Please confirm or modify this assumption as appropriate.
j Alsc, please clarify the meaning of the sentence "it can be demonstrated..." in the Safety Discussion with respect to the presumed purpose of the application to show that indeed this is the case.
2.
Given that the limit switches utilize a chain and sprocket arrangement, please discuss the design features susceptible to drift between calibrations and thus in need for calibration. Also, please provide a summary of the referenced surveillance history with respect to the assumption that calibration sometime during each refueling outage will provide comparable assurance of operability as would calibration at the -
presently stated TS frequencies.
3.
The principal justification for the requested change appears to be that calibration essentially the same as that now required by the TS will continue to be done but at an alternate time in each fuel cycle. That is, instead of being done near startup and shutdown, when containment environmental conditions pose personnel hazards, the calibration will be done during each refueling outage as part of the preventive maintenanta program. Please address this matter and provide a reference to the PECo document which defines the requirement to do this preventive maintenance during each refueling outage.
1
.4
.s Mr.' George A.. Hunger, Jr.
Peach Bottom Atomic Power Station,.
Philadelphia. Electric Company-Units 2 and 3 CC*
Troy B. Conner, Jr., Esq.
Single Point of Contact 1747 Pennsylvania Avenue, N.W.
P. O. Box 11880 Washington, D.C.
20006
~
Harrisburg, Pennsylvania 17108-1880 Philadelphia Electric Company Mr. Thomas M. Gerusky, Director ATTN: Mr. D. M. Smith, Vice President Bureau of Radiation Protection Peach Bottom Atomic Power Station Pennsylvania Department of Route 1, Box 208 Environmental Resources Delta, Pennsylvania 17314 P. O. Box 2063 Harrisburg, Pennsylvania 17120 H. Chris Schwemm Vice President, Production Mr. Albert R. Steel Chairman Atlantic Electric Board of Supervisors P.O. Box 1500 Peach Bottom Township 1199 Black Horse Pike R. D. #1 Pleasantville, New Jersey 08232 Delta, Pennsylvania 17314 f
Resident Inspector.
Mr. Gary Mock U.S. Nuclear Regulatory Coninission P. O. Box 09181 Peach Bottom Atomic Power Station Columbus, Ohio 43209 P.O. Box 399 o
Delta, Pennsylvania 17314 Delmarva Power and Light Company c/o Jack Urban Regional Administrator, Region I Genera 1' Manager, Fuel Supply U.S. Nuclear Regulatory Commission 800 King Street 475 Allendale Poad P. O. Box 231 King of Prussia,~ Pennsylvania 19406 Wilmington, DE 19899 Mr. Bryan W. Gorman Mr. Tom Magette Manager - External Affairs Power Plant Research Program Public Service Electric & Gas Company Department of Natural Resources P. O. Box 236, N28 B-3 Hancocks Bridge, New Jersey 08038 Tawes State Office Building Annapolis, Maryland 21401 1.
Mr. Roland Fletcher Department of Environment 201 West Preston Street Baltimore, Maryland 21201 I
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