ML19331B924
| ML19331B924 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 08/11/1980 |
| From: | Woolever E DUQUESNE LIGHT CO. |
| To: | Varga S Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19331B925 | List: |
| References | |
| TAC-7170, NUDOCS 8008130539 | |
| Download: ML19331B924 (3) | |
Text
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August 11, 1980 Director of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Attn:
Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licensing Washington, DC 20555
Reference:
Beaver Valley Power Station, Unit No. 1 Docket No. 50-334 Revision to Proposed Technical Specification For NPSH Modifications Gentlemen:
Enclosed are three (3) signed originals and thirty-seven (37) copies of a revision to the proposed technical specifications for NPSH modifications to the Low Head Safety Injection and Recirculation Spray Pumps.
The purpose of this change is to revise the logic for the actuation of the automatic Quench Spray flow reduction.
Safety Evaluation The application of the single failure criteria of IEEE 279-1971 to the design of the Quench Spray and Chemical Addition Systems of the Beaver Valley Power Station results in the determination that the results of a single failure of one of the quench spray cutback valves to function is bounded by the single failure of a diesel generator or a quench spray pump.
Therefore, the results of the containment depressurization analysis, j
as submitted, are not invalidated by assuming that the single active failure which occurs is a failure of the cutback valve to accivate at the required time.
The OSC and ORC have reviewed the proposed change to the technical specifications and have determined that there are no safety implications 1
associated with the change and that the change does not provide an un-reviewed safety question.
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- Beaver Valley. Power Station, Unit No. 1
' Docket No. 50-334 Revision to Proposed Technical Specification For NPSH Modifications Page 2 Since this.is a change to an existing technical specification request, we have determined that a fee is not required.
Very truly yours, Woo ever Vice President, Engineering & Construction Enclosures cc:
Mr. D. A. Beckman, Resident Inspector U. S. Nuclear Regulatory Commission Beaver Valley Power Station Shippingport, Pennsylvania 15077 U..S. Nuclear Regulatory Commission c/o' Document Management Branch Washington, D.C.
20555 1
(CORPORATE SEAL)
Attest:
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Qta Joan S. SencliIfshp/
Assistant Secretary COMMONWEALTH OP PENNSYLVANIA)
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COUNTY OF ALLEGHENY On this lith day of August 1980, before me, hnWAT.D W. SHANNON a Notary Public in and for said Commonwealth and. County, personally appeared E. J. Woolever, who being duly sworn, deposed, and said that (1) he is Vice President of Duquesne Light, (2) he is duly authorized to execute and file the foregoing Submittal on behalf of said. Company, and (3) the statements set forth in the Submittal are true and correct to the best of his knowledge, information and belief.
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DONALD W. SHA?iNON. NOTARY PUBil0 PITISBURGH. ALLEGHENY COUNTY N COMMISSION EXPIRES JUNE 7.1933 Meerber. Pennsylvania Association of Notates 9
e
.m-p
-r TABLE 3.3-3 (continued) g('INEERED SAFETY FEATURE ACTUATION SYSTEM
. Ei -
MINIMUM TOTAL NO.
CHANNELS CHANNELS APPLICABLE N'
FUNCTIONAL UNIT OF CHANNELS TO TRIP OPERABLE MODE ACTION 8
1A.
SAFETY INJECTION-TRANSFER y
FROM INJECTION TO THE RE-CIRCULATION MODE g
A.
Manual Initiation 2 Sets 1 Set 2 Sets m
(2 Switches / Set)
. 1,2,3,4 18 B.
Automatic Actuation Co-2 1
2 1, 2, 3' 18 u
g 's incident With Safety u
Injection Signal b S' C.
Refueling Weter' Storage 4
2 3
1,-2, 3
16 E
Tank Level-Low O
D.
Refueling Water Storage 1/ Train 1/ Train 1/ Train 1, 2, 3-18
-Tank Level - Auto QS Flow Reduction d
4 k
O v
s, _'
4, -
,