ML19220B863
| ML19220B863 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/01/1976 |
| From: | Israel S Office of Nuclear Reactor Regulation |
| To: | Deyoung R Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7904270514 | |
| Download: ML19220B863 (1) | |
Text
G Decket File f
Eocket 0 Sri 50-320.
m Rea dng APR 01 1976 RSB Reading Richard C. DeYoung..Jr., Assistant Director for LWR's, DP'i N v: u r n ~e, G. /,,<5 x D.:5 CONSIDERATION OF ALTERNATIVE TO PREOPERATIONAL FICIPCULATION TEST Plant Name: Three Mile Island Nuclear Station, Unit 2 Docket Number: STN 50-320 Licensing Stage: OL Responsible Branch & Project Leader:
L'JR 2-2, H. Silver Technical Review 3 ranch Involved: Reactor Systems Branch The NRC staff was asked if they would consider a proposal for a scaled
- nodel test of the su=p area of Three Mile Island 2 as an alternative to a preoperational test of the plant with the ECCS in the recir-culation : node.
The staff concludes that a test is required for Three Mile Island 2 to verify vertex control during operation in the recirculation node.
The staff will consider proposals for a preoperational test and/or a scale model test designed to provide this verification.
If a scale model test program is proposed, it should include a cowarison of model and plant, a list of sensitivity and perturbation studies to be perfor=ed, and a discussion of the acceptance criteria for inter-preting the tests.
The successful verification of vorter control vill not in itcelf satisfy all the requirunents for the recirculation test. A reduced flow recirculation test taking water frota the st=rp room is required to verify acceptable pressure drops across screening, suction lines and valves.
If the applicant chooses to propose the scaled test, he should also propose a reduced flow sump test.
Original signed by:
Sanford Israel, Section Leader Reactor Systees Branch Division of Syste=s Safety cc:
K. Kniel D R:55 7 904 2 7 0 5If 63 213 T. Novak L Silver i
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