ML20112H247
| ML20112H247 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 03/28/1985 |
| From: | Tucker H DUKE POWER CO. |
| To: | Adensam E, Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8504020186 | |
| Download: ML20112H247 (2) | |
Text
t'
.c i
DUKE POWER GOMI%NY P.O. HOX 33180 CHAHLOTTE, N.O. 28242 HALB. TUCKER ret.zenown
"" '"-om (yo4) 373 433:
March 28, 1985
.mu...-<mo.
Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Attention:
Ms. E. G. Adensam, Chief Licensing Branch No. 4 Re: Catawba Nuclear Station Docket Nos. 50-413 and 50-414
Dear Mr. Denton:
Section 13.5.2 of supplement 4 to the Catawba Safety Evaluation Report discusses the safety-significant differences in the Catawba emergency procedures from the NRC-approved West.inghouse Owners Group generic technical guidelines. As noted in the referenced SER section, a significant addition was made to ECA-1.2, "LOCA Outside Containment".
The Catawba emergency procedure takes advantage of the ice condenser design by providing an option to release steam from the Reactor Coolant System to melt the ice and thus provide additional cooling water to help offset the loss of coolant outside the containment building.
The Staff noted in the SER that qualitatively, this innovation appeared to have merit and therefore requested that Duke study the matter further and provide additional justification for this recovery strategy.
By letter dated October 17, 1984 Duke committed to provide this information by April 1, 1985. Due to the broad scope of the analysis, this justification will take longer to formulate than previously expected. It is now anticipated that the requested information will be submitted on or before April 30, 1985.
Because of the confirmatory nature of this information, no impact on the continued safe operation of Catawba Unit 1 is expected as a result of this delay.
Very truly yours, h
~
Hal B. Tucke ROS: sib f
h J o i
8504020186 850328 hDR ADOCK 0500o413 PDR
r o
%g.
Mr. Harold R. Denton', Director I. March.26, 1985 Page Two cc:
Dr. J.. Nelson Grace, Regional Administrator U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 NRC Resident Inspector Catawba Nuclear Station
. Robert Guild, Esq.
P. O. Box 12097 Charleston, South Carolina 29412 Palmetto Alliance 2135 Devine Street Columbia, South Carolina 29205 Mr. Jesse L. Riley Carolina Environmental Study Group 854 Henley Place Charlotte, North Carolina 28207 i
i-l
~
i i
i t
b