ML19331C539

Technical Evaluation Rept of Jm Farley Nuclear Plant Tech Spec Change on Auxiliary Feedwater Pump Auto Start Signal.

ML19331C539
Person / Time
Site:	Farley
Issue date:	07/31/1980
From:	Cleveland C EG&G IDAHO, INC., EG&G, INC.
To:	Shemanski P Office of Nuclear Reactor Regulation
References
CON-FIN-A-6256 EGG-EA-5205, NUDOCS 8008190012
Download: ML19331C539 (7)

Text

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h EGnG.as. .-

F07M EG4G 396 (Rev 1119)

INTERIM REPORT Accession No.

Report No. EGG-EA-5205 C:ntr:ct Program or Project

Title:

Electrical, Instrumentation, and Control System Support

" Subject of this Document: ,

J. M. Farley Nuclear Plant Technical Specification Change Type cf Document:

Technical Evaluation Report Auth:;r(s):

C. J. Cleveland Dr.t2 cf Document:

July 1980

' R:sp:nsible NRC Individual and NRC Office or Division:

Paul C. Shemanski, NRC-DOL This document was prepared primarily for preliminary or internal use. lt has not received full review and approval. Since there may be substantive changes, this document should not be considered final.

EG&G Idaho. Inc.

Idaho Falls, Idaho 83415 Prepared for the  !

U.S. Nuclear Regulatory Commission  ;

Washington, D.C.  !

Under DOE Contract No. DE AC07-761D01570 l NRC FIN No. A6256 l

INTERIM REPORT l N:Si t

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4833N TECHNICAL EVALUATION REPORT J. M. FARLEY NUCLEAR PLANT TECHNICAL SPECIFICATION CHANGE ON AUXILIARY FEEDWATER PUMP AUTO START SIGNAL Docket No. 50-348 Clinton J. Cleveland I

RELIABILITY AND STATISTICS BRANCH ENGINEERING ANALYSIS DIVISION EG&G IDAHO, INC.

July 1980 l

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s TAC 12963 l

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I. ABSTRACT i

By letter dated February 7,1980, the Alabama Power Company requested a change to the Technical Specifications for the J. M. Farley Nuclear Plant Unit 1. A control signal that auto started the motor driven auxiliary i feedwater pumps upon loss of main feedwater pumps had inadvertently been

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incorporated in the Technical Specifications. Three safety grade auto start signals that start the auxiliary feedwater pumps are also in and will ,

I remain unchanged in the Technical Specifications. This report discusses the reasons for deleting this signal from the Technical Specifications and J

the recommendation that this particular signal be deleted f rom them.

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CONTENTS l l

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1. I NTR OD U CT I O N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I

2. EVALUATION ...................................................... 1

3. CONCLUSION ...................................................... 2

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4. REFERENCES ...................................................... 2 e

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TECHNICAL EVALUATION REPORT J. M. FARLEY NUCLEAR PLANT TECHNICAL SPECIFICATION CHANGE ON AUXILIARY FEEDWATER PUMP AUTO START SIGNAL

1.0 INTRODUCTION

By letter dated February 7, 1980,1 the Alabama Power Comp 3ny (APC) requested a change to the operating license for the J. M. Earley Nuclear Plant Unit 1 (FNP-1). The auto start signal to start the motor driven auxiliary feedwater pumps on loss of main feedwater pumps had I inadvertently been included in the plaat's technical specifications. APC considered this signal a control signal, not a protection grade signal, that mus t be made inoperable in Modes 1, 2, and 3.

2.0 EVALUATION An auto start signal for the auxiliary feedwater pump upon loss of main feedwater pumps is an undesirable condition in operational Modes 1, 2, and 3. There are times, when during the process of shutting down or starting up, that using both main feedwater pumps would overfeed the steam

, generators. At this time one or more auxiliary feedwater pumps are used intermittently. During these times the auto start signal on loss of main feedwater pumps must be made inoperable or run the pumps in the recirculation mode during startup and shutdown against the recommendations o f the manuf acturer. There was no credit taken for this signal in the safety analysis. The licensee has stated that this signal was inadvertantly lef t in the Technical Specifications.

There are three protection grade auto signals that start the motor driven auxiliary feedwater pumps in addition to the control signal mentioned above:

(a) Safety injection signal (SIS) 4 (b) Steam generator low-low level for one steam generator (c) Loss-of-o f fsite power.

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3.0 CONCLUSION

Af ter reviewing the Final Safety Analysis Report (FSAR) f or FNP-1 it has been determined that the licensee indeed did not take credit for this signal. Also the Standard Technical Specifications for Westinghouse Pressurized Water Reactors (NUREG-0452, Rev. 2)3 does not call out this

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signal as a required auto start signal.

Inasmuch, as retaining this nonsafety grade signal would cause awkward operational procedures, does not involve an unreviewed safety question, and could damage the pumps it is recommended that this Technical Specification change be implemented at the earliest opportunity.

4.0 REFERENCE S

1. APC (F. L. Clayton, Jr. ) letter to NRC (A. Schwencer) dated February 27, 1980.

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2. Final Safety Analysis Report (FSAR) for the J. m. Farley Nuclear Plant .

Unit 1. .

3. NUREG-0452, Rev. 2, Standard Technical Specifications for Festinghouse Pressurized Water Reactors, July 1979.

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