ML20125A530
| ML20125A530 | |
| Person / Time | |
|---|---|
| Site: | Millstone, Hatch, Monticello, Dresden, Peach Bottom, Browns Ferry, Nine Mile Point, Oyster Creek, Cooper, Pilgrim, Brunswick, Vermont Yankee, Duane Arnold, Quad Cities, FitzPatrick |
| Issue date: | 09/26/1975 |
| From: | Maccary R Office of Nuclear Reactor Regulation |
| To: | Goller K Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 9212080383 | |
| Download: ML20125A530 (3) | |
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- UNITS 3 STAf tS NUCtEAQ REOULATORY COMMIS$10N W ASHINGTON, D. C. 20655
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SLP *4 W5 K. R. Goller, Assistant Director for Operating Reactors Division of Reactor Licensing REVIEW GE TECHNICAL JUSTIFICATION OF llYDR0 DYNAMIC LOADS FOR HARK I CONTAINMENTS (TAR-1843 - ORB-3-90)
Plant Namest Oyster Creek Nuclear Generating Station, Nine Mile Point Unit 1, Pilgrim 1, Dresden Units 2 and 3. Millstone Unit 1. Quad cities.
Units 1 and 2, Monticello, Peach Bottom Units 2 and 3, Browns Ferry Units 1 and 2. Vermont Yankee, Hatch Unit 1. Brunswick Unit 2, Duane Arnold Energy Center, Cooper and Fitzpatrick.
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-l 50-219( 50-220y& 271pi, 50-245 & 249, 50-254.' 50-2J9 & 260 e 50-2 Docket No.st 7
j 50-263 50-265
, 50-277'& 278I 50-29 7, 50-298 325.-
7 50-331, 50-321, and 50-333.
Responsible Branch:
Operating Reactors Branch #3 (ORB 3)-
Contact:
Walter A. Paulson Technical Review Branches: Containment Systems. Branch, Structural Engineering Branch, and Mechanical Engineering Branch Target Completion Date:
September 30, 1975 e
Status of-Reviews Awaiting Information In accordance with your request the Mechanical Engineering Branch, Division j
of Technical Review, has reviewed background information submitted by General' Electric (GE) up to and including the letter to A. Giambusso, dated July 31, 1975, f rom I. F. Stuart regarding the Mark I containment pool swell phenomenen.
It appears that,. in the short tern program, the owners and their collective agent, namely CE, are mainly concerned with.the integrity of Mark I containment structural elements subjected to loads associated with LOCA-initiated pool swell and subsequent events.
Piping and other mechanical-components have not been thoroughly investigated for = the same. types of -loading considered. Hence, there is not suf ficient information to indicate that the' functional aperability of piping and mechanical components required for emergency core cooling will not be impaired.
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-9212000383 750926 ADOCK050002j3.
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. K. R. Coller Attached is a ifst of additional infomation required before the HEB Staff can complete its review of the integrity and functional operability of piping and mechanical components which could be affected by pool swell dynamic loads..We anticipate that these questions will be addressed prior to the initiation of the long term program.
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R. R. Haccary,. seistant Director for Engineering Division of Technical Review cc w/encit R. Ileineman, TR
- H. Kehnemuyi, TR G. Lear. RL i-W. A. Paulson, RL J. P. Knight, TR
B. D. Liaw..TR cc w/o encit R. Boy d, RL W. G. Mcdonald, MIPC 1
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,'..,e REQUEST FOR INFORMATION HECllANICAL ENGINEERING BRANCH 1.
Provide a list of piping and mechanical components which could be subjected to suppression pool hydrodynamic loadings or loadings from operation of the primary system pressure relief valves, including detailed drawings and functional description of such piping and components.
2.
P'rovide a description of methods and procedures used to define the pool dynamic loads add relief valve actuation loads acting on the listed piping i
and components.
3.
Provide a description of methods and procedures, either by analysis or by testing, being used to ensure design adequacy of the listed piping and componehts under pool dynamic loads or relief valve actuation loads.
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Provide a description regarding how the pool, dynamic loads or valve actuation t
loads being concurrently considered and combined with other operation or j
. accident loads acting on the listed piping and components.
i 5.
Identify design limits used foe the listed piping and components under pool dynamic or relief valve actuation lands.
If analynia or testing has been l
l done, a summary of analysis or testing results and their comparison with 1
design limits should be provided.
If analysis or testing has not yet been done, a description of the future, program to perform such testing or analysis should be provided.
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