ML20083J724

Final Rept of Significant Const Deficiency 81 Re Shelf Life Exceeded on Cable Splice & Termination Tape.Initially Reported on 831215.All Warehoused Okonite Tape & Cement Past Shelf Life Expiration Date Tagged for Disposal

ML20083J724
Person / Time
Site:	Waterford
Issue date:	12/20/1983
From:	Gerrets T LOUISIANA POWER & LIGHT CO.
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, 81, W3K83-2003, NUDOCS 8401100282
Download: ML20083J724 (3)

Text

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B$EONsysE Louisiama P O W E R & L 1 G H T! P O BOX 6008

• NEW OnLEANS. <0UtSIANA

,42 0<<,ec~oe S1e<<1 December 20, 1983

. (504) 366-2.'i45 70174 W3K83- 2003 Q-3-A35.07.81 A

Mr. John T. Collins L;L !V{r@LM\V/[M j

Regional Administrator, Region IV U. S. Nuclear Regulatory Commission i f DEC 2 8 m Q

611 Ryan Plaza Drive Suite 1000 LU i f,,/

Arlington, Texas 76012

REFERENCE:

LP&L letter W3K83-1978 dated December 15, 1983

SUBJECT:

Waterford SES Unit No. 3 Docket No. 50-382 Significant Construction Deficiency No. 81

" Shelf Life Exceeded on Cable Splice and Termination Tape" Final Report In accordence with the requirements of 10CFR50.55(e), we are hereby providing two copies of the Final Report of Significant Construction Deficiency No. 81,

" Shelf Life Exceeded on Cable Splice and Termination Tape."

If you have any questions, please advise.

Very truly yours, W b T. F. Gerrets Quality Assurance Manager TFG:CNH:VBR Attachment ce; Director Office of Inspection & Enforcement '

U. S. Nuclear Regulatory Commission Washington, D.C. 20555 (15 copies) 8401100282 831220 PDR ADOCK 05000382 {

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Mr. John T. Collins -

. December 20, 1983 W3K83-2003 Page 2 cc: Director Office of Management Information and Prc;, ram Control U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. E. L. Blake Shaw, Pittman, Potts, & Trowbridge 1800 M Street, N.W.

Washington, D.C. 20036 Mr. W.~ M. Stevenson Monroe & Lemann 1424 Whitney Building New Orleans, Louisiana 70130

o . ,'

FINAL REFORT OF SIGNIFICANT CONSTRUCTION DEFICIENCY NO. 81

" SHELF LIFE EXCEEDED ON CABLE SPLICE & TERMINATION TAPE" INTRODUCTION This report is submitted pursuant to 10CFR50.55(e). It describes a deficiency in splices and terminations made on power and control cables utilizing Okonite

1. 35, T-95 tapes, and " Nuclear Splice Cement". The problem is considered reportable under the requirements of 10CFR50.55(e). To the best of our knowledge, this problem has not been identified to the Nuclear Regulatory Commission pursuant to 10CFR21.

DESCRIPTION OF PROBLEM Shipments of Okonite #35. T-95 tapes, and " Nuclear Splice Cement" were received at Waterford #3 between March, 1979 and December, 1980. Okonite has stated that the #35 tape has a shelf life of two years T-95 tape has a shelf life of one year, and the splice cement has a shelf life of one year. Splices and terminations have been made with these tapes from the receipt dates through May, 1983, in some cases exceeding the maximum shelf life. No controls existed to prevent the use of tape or cement which had exceeded the maximum vender recommended shelf life.

SAFETY IMPLICATIONS r

Failure of the tape and/or cement could cause the affected splice (s) to open and/or short circuit, thus rendering safety system (s) inoperable.

CORRECTIVE ACTION NCR-W3-6095.was initiated to track and document this deficiency.

Samples of medium and low voltage terminations and splices made with Okonite

1. 35. T-95 and electrical cement from the oldest shipment on-site, were returned to the vendors' lab for dielectric testing. The test results indicated that the use of tape and cement which had exceeded the vendors' recemmended shelf life will not impair the electrical performance of said terminations and splices.

All presently warehoused Okonite tape and cement at Waterford #3 that is past the shelf life expiration date, recommended by the manufacturer, has been tagged for disposal.

" Material Receiving, Warehousing and Control" procedure ASP-IV-10 has been amended (Amendment No. 2, Issue "EE") to require that the shelf life be posted on.each storage location.

The Okonite test report and all other supporting documentation has been verified.

This report is submitted as the Final Report.

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