ML19290C072

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Responds to Request for Review of CENPD-255, Qualification of Class IE Instrumentation. Rept Should Include Equipment & Instruments Located Inside Valve House or Tunnel
ML19290C072
Person / Time
Issue date: 03/17/1978
From: Peter Hearn
Office of Nuclear Reactor Regulation
To: Szukiewicz A
Office of Nuclear Reactor Regulation
References
REF-GTECI-A-24, REF-GTECI-IS, TASK-A-24, TASK-OR NUDOCS 8001090120
Download: ML19290C072 (2)


Text

,

e UNITED STATES NUCLEAR REGULATORY COMMISSION

,q WASHINGTON, D C. 20555 I

E MAR 171978

2. II d Control A. J. Szukiewicz, Instrumentation an MEMORANDUM FOR:Systems Branch, DSS h DSS P. C. Hearn, Auxiliary Systems Branc, Branch, DSS V. Benaroya, Chief, Auxiliary Systems i

FROM:

PD-255, CLASS IE24 (TAC 4S86 i

REVIEW OF THE TOPICAL REPORT THRU:

55, Class IE Qualification fo

SUBJECT:

In accord with your request in the top We entation, dated July,1977 Plan A-24, we have reviewed CENPD-2bustio liary quipment located in the Aux have the following comments:

Sections 2.3 and 3.3.1 state that eBuilding or These sections should a l

f ty related equipment located in event.

(1) di-i environment or a possible seism c be subjected to environment con modified to indicate that C-E sa e high or moderate energy piping sys-l the Auxiliary Building could a so l

tions sssociated with a possib e design, the seismic Category I tem failure in these areas.in feedwater lines, including In a conventional balance of plant

~

j portions of the main steam and ma The piping systems (2) isolation valves, may be located i

ed to exclude high energy line tunnel.

main steam and feed valve house or lated equipment and inside the valve house may be des gnIt is our po valve house or steam tunnel ment resulting from a non-steam o h

instrumentation located inside t e break.

i should be qualified to the env ronPD-255 to include the ain mechanistic single ended break of a mThe app d

Engineering supplied equipme qualification of Combustioninstruments which m pipe.

e$

Teter C. Hearn Auxiliary Systems BranchDivis See next page 1730 347 cc:

Contact:

C. Liang/ P. Hearn x27763 l10 01099_

4 A. J. Szukiewicz MAR 171973 cc:

D. Tibbitts D. Vassallo M. Aycock R. Tedesco V. Benaroya D. Fischer P. Matthews C. Long J. Glynn P. Hearn C. Liang 1730 348

.