ML20087P391
| ML20087P391 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 03/14/1984 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20087P384 | List: |
| References | |
| NUDOCS 8404060372 | |
| Download: ML20087P391 (3) | |
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TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 374ot 400 Chestnut Street Tower II
'N reh 14,1984
- t U.S. Nuclear Regulatory Commission Region II Attn
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNIT 1 - RESPONSE TO VIOLATION 50-438/84-01 FAILURE TO PREVENT PRACTICES THAT CAUSE DEIERIORATION OF AN ELECTRICAL PANEL COMPONENT This is.in response to R. C. Lewis' letter dated February 17, 1984, report numbers 50-438/84-01, 50-439/84-01 conceming activities at the Bellefonte Nuclear Plant which appeared to have been in violation of NRC regulations. Enclosed is our response to the citations.
1 If you have any questions concerning this matter, please get in touch with R. H. Shell at FTS 858-2688.
To the best of my knowledge, I declare the statements contained hemin are complete and true.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills,' Manager Nuclear Licensing Enclosure oc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, _ D.C.
20555
' i 8404060:E72 840321
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PDR ADOCK 05000438 G
pp 1983-TVA SOTH ANNIVERSARY An Equal Opporturiity Employer
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ENCLOSURE
.BELLEFONTE NUCLEAR PLANT UNIT 1 RESFONSE TO SEVERITY LEVEL IV VIOLATION f,
50-438/84-01-02
- FAILURE TO PREVENT PRACTICES THAT CAUSE DETERIORATION OF AN 6,
4 ELECTRICAL PANEL COMPONENT il i
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Description of Deficiency
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10 CFR 50, Appendix B, Criterion.XIII and the accepted QA Program (TVA-TR75-1 A, Rev 5) Section 17.1 A.13 require in part that measures shall be established to control the handling and preservation of material and i
equipment in accordance with work and inspection instructions to prevent damage or deterioration.
Contrary to the above, measures have not been' established to control the preservation of motor starter controllers to prevent damage or deterioration in that a water base electrical cable lubricant diluted by water was allowed '
to impinge directly onto the motor starter controllers in safety-related j-panel No.1VA-ECMS-305-F during-a cable pulling operation resulting in a l
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i - degraded ' condition for the controller contacts and terminals. -
TVA Response 5
1.
Admission or Denial of the Alleged Violation i
TVA admits the violation occurrSlas stated.
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2.. Reason for the Violation TVA's General Construetion Specification G-38,." Installing -
Insulated Cables Rated Up To.15,000 Volts," did not address the.
pmvention of damage to electrical panels and. terminations during i
cable pulling : operations mquiring-the use of lubricants. As a
. result,' the site Quality Control Procedure BNP-QCP; 3 4,
" Electrical' Cable and Jumpers Installation (Pulling) and
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Preparation' (Terminating)," also did not address this concern.
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- An investigation of the affected ' panel.following. identification of this violation revealed that a conduit located at the bottom of ~
the panel was rusted ;ih addition to.the motor starter being-damaged. It.was determined that'the degraded condition of this panel was attributable in part 'to 'the similar introduotion of lubricantJinto the panel during previous cable pulling operations.-
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3 Corrective Steps Taken and Results Achieved Nonconformance report 2721 has been generated to document i
rework of the rusted section of conduit. The referenced motor starter will be replaced by a new one.
4.
Corrective Steps Taken to Avoid Further Violations General Construction Specification G-38, has been revised to include in Section 3 2 requirements to avoid leakage of lubricant during a cable pull in ceder to prevent damage to electrical terminals or contacts.
Also, in case of leakage, requirements that electrical terminals or contacts be cleaned have also been included in this section.
Furthermore, BNP-QCP 3.4 will be revised to require Quality Control inspectors to confirm that the panels are protected du 'ing cable pulling and are clean when complete.
TVA will additionally review all safety-related panels for possible deterioration and will add all safety-related panels containing electrical components to the site maintenance program.
5.
Date When Full Compliance Will Be Achieved
. TVA will be in full compliance by September 1,1984.
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