ML20129G430

Final Significant Const Deficiency Rept Re Unqualified Bussman Fuses in Panels Supplied by Comsip,Inc.Initially Reported on 850416.Bechtel Issued Design Change Package for Replacement of Fuses

ML20129G430
Person / Time
Site:	Hope Creek
Issue date:	06/24/1985
From:	Martin T Public Service Enterprise Group
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 8507180054
Download: ML20129G430 (2)

Text

• Public Service Electric and Gas

• Cornpany Thomas J. Martin 80 Park Plaza, Newark, NJ 07101 201-430-8316 Mailing Address: P.O. Box 570, Newark, NJ 07101 Vice President Engineering and Construction June 24, 1985 Dr. Thomas E. Murley, Administrator U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Dr,

. Murley:

SIGNIFICANT CONSTRUCTION DEFICIENCY UNQUALIFIED BUSSMAN FUSES HOPE CREEK GENERATING STATION On April 16, 1985, a verbal report was made to Region I, Office of Inspection and Enforcement representative, Mr. J.

Strosnider, advising of a significant construction deficiency concerning unqualified fuses in panels supplied by Comsip, Inc. On May 20, 1985, an interim report was submitted to your office. The following final report is provided in accordance with 10CFR50.55 (e) .

Description of the Deficiency Bechtel, our Architect / Engineer and Constructor, has been advised by Comsip, Inc. that some Bussman fuses installed in Hope Creek panels ara not qualified for class lE service.

The problem is limited to 1 amp and smaller fuses supplied by Bussman which are not shown on their August, 1982, Quali-fication Report No. 470-7. Bechtel has identified 155 fuses for replacement.

Safety Analysis The safety related fuses are utilized in instrumentation, circuits that provide control room indication of voltage amperage and frequency readings for power distribution systems and motor current readings for safety related motors.

The power distribution systems affected include the diesel generators, 4 KV/480/120V power systems, batteries and battery chargers. Had the, problem gone undetected and uncorrected, 8507180054 850624 PDR ADOCK 05000354 S PDR IO o_ _

1 AM

7 6 <

Dr. T. E. Murley 2 6/24/85 the potential would exist for adverse impact on the plant's safe shutdown capability. We therefore consider the deficiency to be reportable in accordance with 10CFR50.55 (e) .

Corrective Action Bechtel has issued Design Change Package (DCP) No. 409 to provide for the replacement of the 155 unqualified Bussman fuses supplied by the vendor. Documentation of the corrective action will be included with the closure of Nonconformance Report No. 7367.

Very truly yours, C Office of Inspection and Enforcement Division of Reactor Construction Inspection Washington, D. C. 20555 NRC Resident Inspector - Hope Creek P. O. Box 241 Hancocks Bridge, NJ 08038 Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, GA 30339 l

-l l

l

[

i l

l

- - . ~ . . - . _ _ _ _ _ _ , . _ _ _. _ ., _ _ ._ ___ _ _ _ _ _ . _ , , _ _