ML20196A294
| ML20196A294 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 11/28/1988 |
| From: | Shelton D TOLEDO EDISON CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| RTR-REGGD-01.099, RTR-REGGD-1.099 1613, GL-88-11, NUDOCS 8812050307 | |
| Download: ML20196A294 (1) | |
Text
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TOLEDO EDISON Docket Number 50-346
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License Number NPF-3 DONALD C. SHELTON Vr4 Presdert-NucJew Serial Number 1613 November 28, 1988 United States Nuclear Regulatory Commission Document Control Desk Vashington, D. C.
20555
Subject:
Response to Generic Letter 88-11, NRC Position on Radiation Embrittlement of Reactor Vessel Materials and Its Impact on Plant Operations.
Gentlemen:
Generic Letter 88-11 (Log No. 2648), dated July 12, 1988, requested licensees to submit the results of a technical analysis and proposed schedule for implementing the methods of Regulatory Guide 1.99, Revision 2, "Radiation Embrittlement of Reactor Vessel Haterials", in establishing the reactor coolant system pressure-temperature limits contained in the Technical Specifications. Toledo Edison (TE) herevith provides the requested information.
The Davis-Besse Nuclear Power Station (DBNPS), Unit No. 1 reactor coolant system pressure-temperature and lov temperature overpressurization protection limits were recently revised in Operating License Amendment No. 116, dated August 19, 1988. The development of these limits vere based on the methods presented in Draft Regulatory Guide 1.99, Revision 2 dated February 17, 1987 as stated in TE's License Amendmerit Request proposing the revisions (Serial No. 1490, dated March 30, 1988, and Serial No. 1510, dated May 4, 1988).
Since Draft Regulatory Guide 1.99, Revision 2 contains more conservative assumptions than those of Regulatory Guide 1.99, Revision 2 dated May 1988 i -
(e.g., the fluence attenuation model), no further actions are warranted at this time.
.og If you have any questions, please call Mr. R. V. Schrauder, Nuclear Licensing caoa.
Manager, at (419) 249-2366.
08 gg Very tr ly yours, A
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RMC/ dim o
NQ:
P. H. Byron, DB-1 NRC Resident Inspector
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A. B. Davis, Regional Administrator, NRC Region III A. V. DeAgazio, DB-1 NRC Senior Project Manager l D THE TOLEDO EDISON COMPANY EDISON PLAZA 300 MAD: SON AVENUE TOLEDO, OHIO 43652