ML20081C622

First Interim Rept Re Significant Const Deficiency 90, Electrical Conduct Overstressed. Initially Reported on 830916.All Conduit Installations Will Be Physically Verified.Next Rept by 840215

ML20081C622
Person / Time
Site:	Waterford
Issue date:	10/14/1983
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, 90, W3K83-1572, NUDOCS 8310310300
Download: ML20081C622 (3)

Text

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. t I OUISIANA P OW E R & LIG H T /Waterford 3 SES/P. O. Box B/Killona, LA 70066 dUSINkYS EM October 14, 1983 W3K83-1572 Q-3-A35.07.90

• E@ LWEN Mr. John T. Collins Regional Administrator, Region IV  !

U. S. Nuclear Regulatory Commission k\ 24E I 611 Ryan Plaza Drive, Suite *1000 Q~ _

Arlington, Texas 76012

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REFERE.NCE: TeleconbetweenC. Hooper (LP&L)andC.Oberg(USNRChon September 16, 1983

SUBJECT:

Waterford SES Unit No. 3 Docket No. 50-382 Significant Construction Deficiency No. 90

" Electrical Conduct Overstressed" First Interim Report In accordance with 10CFR50.55(e) attached are two copies of the interim response to Significant Construction Deficiency No. 90, " Electrical Conduit Overstressed". This item was previously identified as PRD No. 126.

Very truly yours, T/ 1 T. F. Gerrets Quality Assurance Manager l

TFG:CNH:VBR l cc: Director Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555 (15 copies)

Director {

Office of Management l' Information and Program Control U. S. Nuclear Regulatory Commission Washington, D.C. 20555 8310310300 831014 PDR ADOCK 05000382 1 E ,17 0 l

5 PDR

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Mr. John T. Collins October 14, 1983 W3K83-1572 Page 2 cc: 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 Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339

r. . . - . - - - -_

t, FIRST INTERIM REPORT OF SIGNIFICANT CONSTRUCTION DEFICIENCY NO. 90

" ELECTRICAL CONDUIT OVERSTRESSED" INTRODUCTION This report is submitted pursuant to 10CFR50.55(e). It describes a deficiency arising from the lack of complete installation records regarding verification of conduit and conduit support insta11atien in accordance with established installation criteria for span and support loading.

To the best of our knowledge, this deficiency has not been reported to the USNRC pursuant to 10CFR21.

DESCRIPTION As a result of field surveillances conducted by Ebasco on conduit installations by Fischbach & Moore, the Electrical Contractor at Waterford 3, various discrepancies were identified relative to span and conduit support maximum allowable deadweight loads installed. Although most of the discrepancies were minor, further engineering evaluation is needed to determine the significance of this deficiency.

SAFETY IMPLICATIONS f'

Engineering analyses are required to determine if the deviations identified in the surveillance would indeed result in failure of a safety related installation to perform its intended function under design basis loading conditions.

CORRECTIVE ACTION TAKEN The installing contractor, Fischbach & Moore, has ceased performing field installation, therefore, no corrective action on future installations under their jurisdiction is required.

4 As a result of the above, all conduit installations required for safe shutdown will be physically verified to be supported in a manner that will ensure their operability under design basis accident conditions. If any conduit installations are identified as deficient, they will be reworked.

An update or final report will be submitted to the USNRC on or before February 15, 1984.

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