ML20070C868
| ML20070C868 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 12/07/1982 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-82 10CFR-050.55E, 10CFR-50.55E, NCR-1822, NUDOCS 8212140371 | |
| Download: ML20070C868 (2) | |
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TENNESSEE VALLEY AUTHORITYRC PFC W CHATTANOOGA TENNESSEE 374o1
- I">U 400 Chestnut Street Tower II
-, nF C 9 P l. 39 December 7, 1982 BLRD-50-439/82-36 U.S. Nuclear Regulatory Commission Region II Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNIT 2 - FAULTY RELAYS IN AUXILIARY POWER DISTRIBUTION SYSTEM BY BROWN BOVERI ELECTRIC - BLRD-50-439/82 SECOND INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector D. Quick on May 28, 1982 in accordance with 10 CFR 50.55(e) as NCR 1822.
This was followed by our first interim report dated June 28, 1982.
Enclosed is our second interim report. We expect to submit our next report by September 24, 1983 We consider 10 CFR Part 21 applicable to this deficiency.
If you have any questions concern $ng this matter, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY D S L -s-L. M. Mills, Manager Nuclear Licensing Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 O + +/ p<i T
8212140371 821207 PDR ADOCK 05000439 S
PDR An Equal Opportumty Employer
,3 ENCLOSURE BELLEFONTE NUCLEAR FLANT UNIT 2 FAULTY RELAYS DI AUXILIARY POWER DISTRIBUTION SYSTEM BY BROWN BOVERI ELECTRIC I;CR 1822 BLRD-50-439/82-36 10 CFR 50.55(e)
SECOND INTERIM REPORT Description of Deficiency Two I-T-E (I-T-E Imperial Corporation) type 27 undervoltage relays and two I-T-E type 59 overvoltage relays located in Class IE, unit 2 6.9-kV switchgear (furnished by Brown Boveri Electric, Chalfont, Pennsylvania, on contract 75KS-85583) failed to function during construction testing.
Interim Progress TVA has returnea the relays to the vendor for repair or replacement and determination of cause, corrective action, and action required to prevent recurrence. To date the vendor has not provided disposition of this deficiency. We are working with the vendor to obtain this information.
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