ML20084E341
| ML20084E341 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 03/15/1973 |
| From: | Green G ROCHESTER GAS & ELECTRIC CORP. |
| To: | Skovholt D US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20084E344 | List: |
| References | |
| NUDOCS 8304150023 | |
| Download: ML20084E341 (1) | |
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a?CCHESTER GAS AND ELECTRIC CORPORATION e 29 EAST AVDIUC ROCHESTER, N.Y.14l04 n-March 15,1973 l{c VV y
y Mr. Donald J. Skovholt Assistant Director for Operating Reactors F
0 Directorate of Licensing 4
U. S. Atomic Energy Commission F
g 'U 91973u 1 Washington, D. C.
20545
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Subject:
Pressurizer Safety Valve Supports 4
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R.E. Ginna Nuclear Power Plant 8
y Docket 50-244 j J. r PI'
Dear Mr. Skovholt:
/
In response to your letter of September 12, 1972, requesting additional information on Main Steam and Pressurizer Safety Valve
/
Supports, we herewith submit forty (40) co'liies~ o~f a supplementary report:
"RG&E - Pressurizer Safety Valve Discharge Piping Time
/ ', j History Dynamic Analysis" dated March 15, 1973.
- rp The attached report supplements our previous report on Pressurizer by' i Safety Valves submitted on June 19, 1972. This report provides specific g/
information requested in your letter of September 12, 1972 and also
~ 'n questions raised on the pressurizer safety valve analysis at the meet-C.b k.
ing at your office on November 27, 1972.
A list of these questions and the answers is tabulated in the report.
Furthermore, at your
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request we have included a combined Stress Table showing the thermal, dead weight, prersure, thrust, and seismic stresses at all node points representing elbows and straight runs in the safety valve discharge piping. A review of the analysis shcws that the stress levels in the pressurizer safety valve, Class 1 and Class 2 piping systems are within the allowable design requirements of USAS 831.1.
y truly yours,;
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