ML20107G962

Part 21 & Interim Potential Const Deficiency Rept Re Performance of Spring Closure Fire Dampers Supplied by Ruskin Mfg Co.Initially Reported on 841224.Util Project Test Rept Will Be Reviewed.Final Rept by 850329

ML20107G962
Person / Time
Site:	Hope Creek
Issue date:	01/25/1985
From:	Martin T Public Service Enterprise Group
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
REF-PT21-85-085-000 PT21-85-085-000, PT21-85-85, NUDOCS 8502270005
Download: ML20107G962 (2)

Text

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Public Service Electric and Gas Company Thomas J. Martin 80 Park Plaza, Newark, NJ 07101 201430-8316 Mailing Address- P.O. Box 570, NE vark, NJ 07101 Vice President Eng;neering and Construction January 25, 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:

POTENTIAL CONSTRUCTION DEFICIENCY RUSKIN FIRE DAMPERS MODEL 1BD-23 HOPE CREEK GENERATIUG STATION On December 24, 1984, a verbal report was made to Region I, Office of Inspection and Enforcement representative, Mr. H.

Kister, advising of a potentially significant construction deficiency concerning the performance of spring closure fire dampers supplied by Ruskin Manufacturing Company. The following interim report is provided in accordance with 10CFR50. 55 (e) .

Ruskin Manufacturing Company issued a 10CFR21 Report con-cerning the failure and/or reduced performance of spring closure fire dampers which require closure under air flow conditions. Ruskin reports that the test methods originally used to test dampers may not accurately reflect actual field installed conditions. Our Architect / Engineer and Constructor, Bechtel, has informed us that approximately 232 safety related fire dampers, model number 1BD-23, are potentially affected.

These dampers were supplied to the Hope Creek project on Purchase Order No. 10855-M-716 (Q) .

In order to determine the extent of the problem, Bechtel is currently attempting to obtain a copy of a Palo Verde project test report which demonstrates acceptable closure of fire dampers up to a limiting air velocity. Additionally, Bechtel is monitoring an ongoing Ruskin test program. Dampers at Hope Creek which cannot be accepted on the basis of these two test programs will be modified accordingly.

8502270005 850121 PDR ADOCK 05000354 .

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Dr. T. E. Murley 2 1/25/85 Our analysis of safety implications is pending identificat ion of specific dampers, if any, which require modification in order to assure proper operation.

We anticipate providing you with our final report on this problem by March 29, 1985.

Very truly yours,

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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