ML17179A547

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Requests Technical Assistance Interpretation & Resolution of RG 1.97 (Aits 92-0641) Open Items Re Neutron Flux Monitoring Instrumentation,Reactor Level Instruments & Moore Industries Signal Conditioners
ML17179A547
Person / Time
Site: Dresden, Quad Cities  Constellation icon.png
Issue date: 10/27/1992
From: Miller H
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To: Zwolinski J
Office of Nuclear Reactor Regulation
Shared Package
ML17179A539 List:
References
RTR-REGGD-01.097, RTR-REGGD-1.097 NUDOCS 9211030145
Download: ML17179A547 (2)


Text

MEMORANDUM FOR:

FROM:

SUBJECT:

John A. Zwolinski, Assistant Director for Region Ill Reactors Division of Reactor Projects - 111/IV/V Office of Nuclear Reactor Regul~tion Hubert J. Miller, Director Division of ReaGtor Safety, Region III REQUEST FOR TECHNICAL ASSISTANCE INTERPRETATION AND RESOLUTION OF REGULATORY GUIDE (RG) 1.91 AT QUAD CITIES, DOCKET NUMBERS 50-254 AND 50-265 (AITS 92-0641)

ENCLOSURE 7 Determine if the licensee complies with RG 1.97,.Revision 2 for the ~eutron flux monitoring instrumentation, the reactor level instruments, and the Moore Industries signal conditioners.

Four unresolved items remain open.

Un resolved* i tern {254/88027-01CDRS);265/88028-0lCDRS)): -Determine adequacy of the neutron flux monitoring instrumentation i ".I meeting the Category 1 requirements.

The licensee's position is to follow the BWR Owner's Group recommendations as stated during subsequent discussions with the.NRC, which indicated that further review by NRR was required.

Unresolved item C25~/88027-03CDRSl:265/88028-03CDRSll:

E~aluat~ and determine acceptability of the licensee analysis concerning the off-scale indication of the reactor le~el indicators 263-73A and 263-73B with th~ recirculation pumps'*

running as identified in the licensee's letter dated Dec~mber 9; 1991.

Based upon the added instrumentation and.discussions with NRR/SICB, further review and analysis by NRR is required.

Unresolved itein C254/88027-05CDRSl:265/88028-05CDRSll:

Evaluate and determine acceptance of ~he licensee's use of Moore Industries signal conditioners as isolators.

Maximum credible fault testing pf these devices was completed per Test Report CWE-3212P, Revision 2, dated November 4, 1988, copies of which were previously forwarded to NRR/SICB (Model SCT/0-1V/0-1V/24Vdc(STD).

Unresolved item C254/88027-06CDRSl:265/88028-06CDRSll:

Evaluate and determine acceptance of the licensee's use of Moore Industries signal conditioners as isolators.

Maximum credible fault testing of these devices was completed per Test Report CWE-3480, Revision 0, dated October 12, 1989, copies of which were previously forwarded to NRR/SICB ((Models SCT/4-20mA/4-20mA/117Vac(STD) and MVT /80-160mV /4-20mA/ll 7Vac(STD).).

--~.

9211030145 921027 PDR ADDCK 05000237 P

PDR

J. A. Zwolinski 2

Direct any questions concerning this subject to either George Hausman at (708) 790-5523 or Frank Jablonski at (708) 790-5555.

We consider this to be a Priority 2 item with a completion date of January 16, 1993.

Attachment:

Commonwealth Edison Letter dated December 9, 1991 cc w/attachment L. N. Olshan, NRR A. G. Hansen, NRR B. S. Marcus, NRR S. F. Newberry, NRR DCD/DCB(RIDS)

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Hubert J. Miller, Director Division of Reactor Safety

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