ML20071E370
| ML20071E370 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 03/03/1983 |
| From: | Carey J DUQUESNE LIGHT CO. |
| To: | Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| REF-SSINS-6820 IEB-83-01, IEB-83-1, NUDOCS 8303100196 | |
| Download: ML20071E370 (4) | |
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l Tg5 Telephone (412) 393-6000 Nucisar Division P.O. Box 4 Shippingport, PA 15077-0004 March 3, 1983 United States Nuclear Regulatory Commission Office of Inspection & Enforcement Attn:
R. C. Haynes, Regional Administrator Region I 631 Park Avenue King of Prussia, PA 19406
Reference:
seaver Valley Power Station, Unit No. 1 Docke' No. 50-334, License No. DPR-66 IE Bulletin 83-01 Centlemen:
We have completed our review of IE Bulletin 83-01, " Failure of Reactor Trip Breakers (Westinghouse DB-50) to Open on Automatic Trip Signal" and a report containing details of actions taken at our facility is attached. Based on the results of our actions required by this Bulletin, we judge the operation and maintenance of these breakers to be satisfactory and no further action is necessary.
If you have any questions concerning this response, please contact my office.
Very truly yours, J. J. Carey Vice President, Nuclear At tachttent cc:
Mr. W. M. Troskoski, Resident Inspector U. S. Nuclear Regulatory Commission Beaver Valley Power Station Shippingport, PA 15077 e U. S. Nuclear Regulatory Commission Docturent Control Desk Washington, DC 20555 1
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8303100196 830303 l.
PDR ADOCK 05000334 G
DUQUESNE LIGHT COMPANY Beaver Valley Power Station Unit No. 1 ATTACRMENT Action Required by IE Bulletin 83-01 Item l' Perform surveillance test of undervoltage trip function indepen-dent of the shunt trip within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of receipt of this Bulletin unless equivalent testing has been performed with 5 days. Those plants for which on-line testability is not provided may complete this item before resuming operation or if currently operating, at the next plant shutdown.
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Response
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On February 26, 1983, the I&C Group performed MSP 1.04 (Reactor Protection Logic System Train "A" Bi-monthly Test) and MSP 1.05 (Reactor Protection Logic System Train "B" Bi-monthly Test). These tests consist of an in-situ test of the Reactor Protection Logic System train which tests the undervoltage trip function of the reactor trip breakers. These tests were completed satisfactorily.
Item 2 I
Review the maintenance program for conformance to recommended y program (attachment) including frequency and lubricant applied to trip mechanism. Verify actual implementation of theJT program.
If maintenance including lubrication does not conform, initiate such maintenance within 5 days of receipt of this bulletin or provide an alternate maintenance program. Repeat the testing required in Item 1 prior to declaring the breaker OPERABLE.
Res ponse The breaker maintenance program was reviewed per ji NSD Data Letter 74-2.
The lubricant recommended by -the j{ program for trip mechanism application has been in use at BVPS #1 since construction. The Reactor Trip breakers at BVPS #1 are lubricated, inspected and maintained on an 18-month frequency.
Our maintenance experience with these breakers indicates that the 18-month frequency is appropriate at this site.
Because of the bi-monthly testing of the SSPS, the breaker testing frequency
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will be lef t at 18 months.
Acticn Rrquired by IE Bulletin 83-01 Attschment Page 2 i
Item 3 Notify all licensed operators of the failure-to-trip event which occurred at Salem. Review the appropriate emergency operating procedures for the event of failure-to-trip with each operator upon his arrival on-shift.
Response
All licensed operators presently on shif t have been notified of the Salem event and have discussed the present requirements in the E.0.P.
on verification of reactor trip. All operators not on shift will be informed of the event when they return to shif t.
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i COMMONWEALTH OF PENNSYLVANIA)
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COUNTY OF BEAVER
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On this (Id day of gh
/ f M, before 1110, /7/ s'/N a Notary Public in and for said Commonwealth me, and County, personalli appeared J. J. Carey, who being duly sworn, deposed,
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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 kncwledge, information and belief.
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