ML20087J814

Interim Deficiency Rept Re Design of Valve Coordination for HPCS Sys.Initially Reported on 840216.AE Currently Investigating as-designed Condition of Valves & Associated Logic.Next Rept Expected by 840430

ML20087J814
Person / Time
Site:	Perry
Issue date:	03/16/1984
From:	Edelman M CLEVELAND ELECTRIC ILLUMINATING CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
(RDC-96(84)), NUDOCS 8403230101
Download: ML20087J814 (2)

Text

pj)b y

i 4

T H E C L E V E L o: 0 E L E C T R i c I L L U M i N A T ! N G C O T/l ? A N Y P.O. Box *;000

- CLEVELAND. OHlo 44101 TELEPHONE (216) 622-9800 - ILLUMINATING BloG. - 55 PUBLIC SOUAPE Serwng The Best Location in the Nation MURRAY R. EDELMAN y

VICE PRESIDENT NUCLEAR Mr. James G. Keppler Regional Administrator, Region III Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 RE:

Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Design of Valve Coordination for the HPCS System [RDC 96(84)]

Dear Mr. Keppler:

This letter serves as the interim report pursuant to 10CFR50.55(e) on the deficiencies concerning initiation of the High Pressure Core Spray (HPCS)

System concurrent with operation of the suppression pool cleanup system.

Mr. P. R. Pelke of your of fice was notified on February 16, 1984, by Mr. B. D.

Walrath of The Cleveland Electric 111um1nating Company (CEI) that this problem was being evaluated. This discrepancy was identified d Tring a safety system functional capability review being performed for CEI by GDS Associates.

This report contains a description of the deficiency, planned correetive action and the date for filing of the next report on this subject.

Description of Deficiency PSAR Section 7.3.1.1.1.lb states that if the water level in the condensate storage tanks falls below a predetermined level, the suppression pool suction valve MOV E22-F015 automatically opens. When E22-F015 is fully open, the condensate storage tank suction valve MOV E22-F001 automatically closes. Two icvel transmitters are used to detect low water level in the condensate storage

tank, Either transmitter can cause automstic suction transfer. The suppres-sion pool suction valve also automatically opens f f high water level is detected in the suppression pool. Two level transmitters monitor suppression pool water level and either transmitter can initiate openirg of the suppression pool suction valve. To prevent losing suction to the pump, the suction valves are interlocked so that one suction path must be oper before the other closes.

Aa the system is designed, valve E22-F001 starts closing before valve E22-F015 is fully open.

This could cause less than specified flow for the High Pressure Core Spray System and might possibly result in a trip of the HPCS main pump.

0 0

S PDR MAR 101984x

.~

2-March 16, 1984 Mr. Jemas C. Ksppler.

Corrective Action Gilbert Associates, Incorporated, our Architect / Engineer, is currently evaluating

~

the as-designed condition of the identified valves and their associated logic to deter'.ine if design changes are necessary to effect safe system operation.

We will submit our next report on this subject by April 30, 1984.

PIcase call if there are any questions.

Sincerely, Murray. R. Edelman Vice President

. Nuclear Group MRE: pao cc:

Mr. M. L. Gildner NRC Site Office Director Of fice of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.

20555 U.S. Nuctear Regulatory Commission c/o Document Mant.gement Branch Washington, D.C.

20555 Records Center, SEE-IN Institute of Nuc1 car Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 4

i I

b 1

i S

I u

y a

4

• +

r--

w-g

• -a

+

a-e,.

,-t,-

? ~ *^

--w-y-

s s

y q,+,ve+

-