ML19320C654
| ML19320C654 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/28/1980 |
| From: | Lafleur J NRC OFFICE OF INTERNATIONAL PROGRAMS (OIP) |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8007170509 | |
| Download: ML19320C654 (1) | |
Text
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NUCLEAR REGULATORY COMMISSION J-'
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h MEM0PANDUM FOR:
Harold R. Denton, Director Office of Nuclear Reactor Regulation FROM:
Joseph D. Lafleur, Jr., Deputy Director Office of International Programs
SUBJECT:
BRITISH TECHNICAL INQUIRY The UK Nuclear Installations Inspectorate (NII) indicated in a recent telex that the following technical questions (related to TMI-2 reactor pressurizer water level instrumentation) were submitted to NRC in December 1979:
(A)
Is the upper tapping from the pressurizer steam space filled by design with condensate (in normal operation) to a fiduciary level?
(B) What are the approximate temperatures of the condensate at the pressurizer and DP cell ends of the tapping during normal operation?
(C) How long are the upper and lower tappings?
(D)
Is there any feature of the tappings / condensate which causes the pressurizer level instrumentation to be regarded as unreliable in the presence of a leak at the top of the pressurizer? If so, what?
Although I have been unable to confirm original receipt of these questions, or whether they have previously been submitted to the staff for response, I would appreciate NRR's timely review of the questions at this time and preparation of brief responses at the earliest opportunity.
Please advise Bob Senseney, (49-27788) IP, whether NRR can accommodate this request and, if so, the name of the staff member who will handle it.
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Deputy Director Office of International Programs cc: Bernard Snyder, TMI Program Office John T. Collins, TMI Program Office f607/70%9 a.
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RHVollmer Dress SHanauer RMattson MDuncan HThompson w/ incoming MEMORA!!DUM FOR: Joseph D. LaFleur, Jr., Deputy Director Office of International Prograrts FROM:
Harold R. Denton, Director Office of fiuclear Reactor Regulation
SUBJECT:
RESP 0'iSE TO BRITISH TECHriICAL QUESTIO:iS Oli TMI-2 Enclosed is fiRR's response to the UK fiuclear Inste.liations Inspectorate request for technical infomation on TMI-2 reactor pressurizer water level instrumentation.
This submittal has been prepared per your letter request dated April 28, 1980.
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Harold R. Denton, Director Office of Nuclear Reactor Regulation
Enclosure:
Staff Response to British Technical Questions cc:
R. S. Senseney, IP B. J. Snyder J. T. Collins W
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