ML20235Q697

From kanterella
Jump to navigation Jump to search

Forwards Supplemental Info Re Pressurizer Heater Event, Including Final Rept on Pressurizer Event,Calculation 32-1167974-01, Local Heating of Pressurizer Shell Inside Corner & Calculation 32-1167603-01, Pressurizer Shell..
ML20235Q697
Person / Time
Site: Rancho Seco
Issue date: 10/03/1987
From: Firlit J
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To: Miraglia F
Office of Nuclear Reactor Regulation
Shared Package
ML20235Q699 List:
References
AGM-NPP-87-267, TAC-64153, NUDOCS 8710070670
Download: ML20235Q697 (2)


Text

-

esuu.

SACRAMENTO MUNICIPAL UTILITY DISTRICT C P. O. Box 1583o, Sacramento CA 95852-183o,(916) 452-3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CAllFORNIA October 3, 1987 AGM/NPP 87-267 U. S. Nuclear Regulatory Commission Attn: Frank J. Miraglia, Jr.

Associate Director for Projects Philips Bldg.

7920 Norfolk Avenue Bethesda, MD 20014 l

. DOCKET 50-312 RANCHO SEC0 NUCLEAR GENERATING STATION UNIT #1 PRESSURIZER HEATER EVENT SUPPLEMENTAL INFORMATION

Reference:

Letter from J. E.. Ward to F. J. Miraglia, Jr., dated February 24, 1987 l-

Dear Mr. Miraglia:

In the referenced letter the District committed to provide the following information:

Fatigue analysis I

Discussion of the degree of conservatism in the analyses j

Clarification of the maximum wall temperature Information on the composition of the pressurizer wall, cladding and base j

materials j

Information on the possibility / impact of wetting of the hot pressurizer surface contains the final report on the pressurizer event. This report provides the information committed in the referenced letter and described above. As a result of the revision to the report, two calculations were revised to incorporate the fatigue analysis. These calculations are provided in attachment 2 for your use.

l 0\\

0 PosS MSh 1

e

,(

l 5

i RANCHO SECO NUCLEAR GENERATING STATION O 14440 Twin Cities Road, Herald, CA 95638-9799: (209) 333 2935

AGM/NPP 87-267 Frank J. Miraglia, Jr. If you have any questions, please contact John Atwell.

Sincerely,

. $Y Joseph F. Firlit Assistant General Manager, Nuclear Power Production l

Attachments cc:

G. Kalman, NRC, Bethesda w/atch A. D'Angelo, NRC, Rancho Seco w/atch a

I i

1 1

i l

i i

l

_ _ _ _ _ _ _ _. _ _ _ _ _. _ _ _ _ _ _. _ _ _ _ _ _.