ML20086A143
| ML20086A143 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 06/22/1995 |
| From: | Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9507030076 | |
| Download: ML20086A143 (3) | |
Text
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Ctation Support Department 4
Y PECO ENERGY
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t 965 Chesterbrook Boutevard Wayne, PA 19087-5691 June 22,1995 Docket Nos. 50-277 50-278
. Ucense Nos. DPR-44 DPR-56 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555
SUBJECT:
Peach Bottom Atomic Power Station, Units 2 and 3 Technical Specifications Change Request (TSCR) 93-12 Concerning Power Rerate i
Dear Sir:
By letter dated June 23,1993, PECO Energy Company submitted Technical Specifications Change Request (TSCR) 93-12 regarding our implementation of the Power Rerate Program at Peach Bottom Atomic Power Station (PBAPS),
Units 2 and 3. The purpose of this letter is to confirm commitments for PBAPS, Unit 3 concerning power rerate. These power rerate commitments are similar to commitments made in an October 14,1994 letter from G. A. Hunger, Jr.
(PECO Energy Company) to the U. S. Nuclear Regulatory Commission (USNRC) for PBAPS, Unit 2.
On October 11,1994, a call was held to discuss the Power Rerate Startup Testing Program. In that call, PECO Energy stated that a flow test of both High Pressure Coolant injection (HPCI) System and Reactor Core Isolation Cooling (RCIC) System injection capabilities would be included in the testing program.
This flow test would involve HPCI and RCIC returning flow to the Condensate Storage Tank. This testing was in conformance with the Power Rerate Startup Testing Program recommended by General Electric. Additionally, PECO Energy confirmed that implementation of the Power Rerate Program is not expected to have an adverse impact on the reliability of either the HPCI or RCIC Systems.
This discussion would also apply to the startup of PBAPS, Unit 3.
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Pabe 2 Implementation of the Power Rerate Program does not require an increase in reactor core flow. Mthough PECO Energy does not anticipate any adverse vibration affects,
4 ting from implementation of power rerate, we are committing to the lowing for PBAPS, Unit 3:
1.
During startup of Unit 3 from 3R10, PECO Energy will monitor the currently installed, recirculation pump, vibration detection instrumentation for any significant increases in vibration levels. This monitoring will be performed as core flow is increased to near rated values. Additionally, PECO Energy will perform a walkdown of the Reactor Building to observe any noise or vibration anomalies. The objective of this walkdown is to provide a qualitative assessment of vibration levels near rated core flow.
These activities will be included in the Unit 3 Power Rerate Startup Testing Program.
2.
During the Unit 3 Cycle 11 operation, when the recirculation pump speed is in excess of the previous maximum speed (1595 RPM), PECO Energy will again monitor the recirculation pump, vibration detection instrumentation for any significant increases in vibration levels, and will perform periodic walkdowns of the Reactor Building, as described previously. The frequency of these walkdowns will be determined based on any observed indications of increased vibration levels.
If you have any questions concerning this issue, please do not hesitate to contact us.
Very truly yours,
.h.
f,f.
G. A. Hunger, Ur.,
Director Licensing Section Affidavit cc:
T. T. Martin, Administrator, Region I, USNRC W. L Schmidt, USNRC Senior Resident inspector, PBAPS R. R. Janati, Commonwealth of Pennsylvania a
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COMMONWEALTH OF PENNSYLVANIA ss.
COUNTY OF CHESTER i
W. H. Smith, III being first duly sworn, deposes and says:-
That he is Vice President of PECO Energy Company; the Applicant herein; that he has read the enclosed response concerning Technical Specifications Change Request (Number 93-12) for Peach Bottom Facility Operating Licenses DPR-44 and DPR-56, and knows the contents thereof; and that the statements and matters set forth therein are true and correct to the best of his knowledge, information and belief.
sI-[
7h Vice Preside i
Subscribed and sworn to before me this 8c)nl-1 day of M
1995.
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