ML19261E973
| ML19261E973 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 11/30/1972 |
| From: | Maccary R US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Deyoung R US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 7910171027 | |
| Download: ML19261E973 (2) | |
Text
9 NOV 3 0 1972
]
Richard C. DeYoung, Assistant Director
- aus m an for Pressurized Water Reactors Directorate of Licensing TESTING PROGRAM REQUESTED FOR CONFIRMING THE OPERABILITY OF ACTIVE VAL 7ES Plant Name: Three Mile Island 1 i
Licensing Stage: OL Docket Number: 50-289 I
Responsible Branch and Project Manager: PWR-2; H. E. Schierling Review Status: Avaiting Information Enclosed is a request for additicnal information by the Mechanical Engineering Branch, Directorata of Licensing, for completing the FSAR final evaluation of the subject plant.
We recosamend that the applicant be advised of the reed to respond L
promptly to this request. To assist in expediting the response, r,-
Mechanical Engineering Branch is prepared to discuss the valve operability program proposed by the applicant at a meeting scheduled at the earliest date.
f T *inali! M by i
- b. E f. m e.
R. R. liaccary, Assistant Director for Engineering Directorate of Licensing
Enclosure:
Request for Additional Information ec w/ encl:
ec w/o encl:
DHISTRIBUTIO:::
- 5. H. Hanauer, DETA A. Giambusso, L DOCKET FILE (50-2e9)
J. M. Elendrie, L W. G. McDonsld, L E. Kniel, L L Reading File D. F. Lange, L MEB R/_
H. E. Schierling, L J. P. Knight, L S. N. Hou, L 1483 338 M..E.,B : L MEB:L MEB:L L:AD:E
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e TI:REE MILE ISLA::D 1 REQUEST FOR ADDITIO::AL 1:TG2L\\ TION MECILU;ICAL E::GI::EERI::G BPX:CH, L The dynamic analytical and testing procedures used to confirm the ocerability of all active valves are insufficient.
An acceptable progran would be in-;itu valve testing where the operability of valves is demonstrated in the plant during the preoperational testing Provide the of those systens designed to Seismic Category I criteria.
details of such a program which would demonstrate operability under normal syctem operstion, as well as under superimposed loading, that simulate appropriately vibratory seismic, and accident (LOCA) vibratory responses, as applicable to the systen.
This progran nay include either the application of vibratory devices to superimpose the vibratory seismic and accident loadings or an equivalent combination of analytical and testing methods that confirm operability.
The test prograr may be based upon selectively testing a representative number of active valves in t'ae piping systen according to valve type, seismic and accident load level, size, etc. en a prototype basis.
1483 439