ML20246L193
| ML20246L193 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 04/27/1978 |
| From: | Parr O Office of Nuclear Reactor Regulation |
| To: | Sherwood G GENERAL ELECTRIC CO. |
| Shared Package | |
| ML20246L184 | List: |
| References | |
| NUDOCS 8903230310 | |
| Download: ML20246L193 (3) | |
Text
1 NEDO-21617-A UNITED STATE 5
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General Electric Company ATTN: Dr. G. G. Sherwood, Manager Safety and Licensing 175 Curtner Avenue San Jose, California 95114 1
Gentlemen:
NED0-21617, " ANALOG TRANSMITTER / TRIP UNIT SYSTEM FOR
SUBJECT:
ENGINEERED SAFEGUARD SENSOR TRIP INPUTS" We have reviewed.%nendment No.1 to the subject report and find that The Enclosure we need additional information to complete our review.
contains our request for additional information.
Please infom us of $he date you plan to provide the requested'
)
If you wish to discuss the matters of the Enclosure, infonnation.
please contact us.
Sincerely,
. P'ar$ Chief Light Water Reactors Branch No. 3 Divir, ion of Project Management
Enclosure:
Request for Additional
)
Infomation cc w/ enclosure:
i Mr. L. Gifford General Electric Company 4720 Montgomery Lane Bethesda, Maryland 20014 l) m2pgggggg.
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NEDO-21617-A ENCLOSURE (D
REQUEST FOR ADDIT 10tlAL INFORMATION ON ANALOG TRANSMITTER / TRIP UNIT SYSTEM NE00-21617_
32.21 The respanse to question 032.11 is incomplete and unacceptable.
The d
I staff's review of GESSAR included a review of the automatic depressuri -
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zation system (ADS) function and the proposed pressure relief function in BWR/6 plants.
These functions were designed with dual logics in l
each division of the' system equipment, specifically Logics "A" and 4
"E" in division 1 and Logics "B" and "F" in division 2.
A coincidence of the 2 logics of either division will actuate the system.
These within division logics are designed to meet the si,,ngle failure ' criterion in order to pr, event inadvertent actuation of ADS or pressure relief.
Therefore, provide a complete description which demonstrates how the l
above stated design basis is implemented for those portions.of the logics within the Analog Transmitter / Trip Unit System.
Include appro-priate electrical and physical diagrams as necessary in responding to lg this concern.
I 32.22 The response to question 032.18 on equipment qualification is not acceptable.
l In order for the staff to evaluate the qualification of the analog i
transmitter / trip unit system equipment included on the topical report, we require that the qualification information, which is currently required by the staff on all licensing applications, be provided.
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Therefore, provide a description of (1) how each piece of equipment has been qualified to IEEE 323-1974; (2) the acceptance criteria; (3) test I
procedures; and (4) test results.
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