ML19341A971

Special Rept:While Performing Periodic Test of Fire Barrier Penetration seals,300 Seals Were Found in Nonfunctional Condition.Caused by Inadequate Sealing During Installation. Seals Identified & Mapped for Repairs

ML19341A971
Person / Time
Site:	Brunswick
Issue date:	01/15/1981
From:	Tollinson A, Tollison A CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
BSEP-81-0083, BSEP-81-83, NUDOCS 8101290586
Download: ML19341A971 (1)

Text

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l O]b { O d Carohna Power & Light Company -

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Brunswick Steam Electric Plant P. O. Box 10429 Southport, . .C 28461 4 , .mqn

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FILE: 309-13516 '- ~

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\.' 'e ,. c,W Mr. James P. O'Reilly, Director '

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Region II 101 lbrietta Street, Suite 3100 Atlanta, Georgia 30303

. BRt";SWICK CTEAM ELECTRIC PLL';T, UNIT NO. 2 LICENSE NO. DPR-62 ,

DOCKET.No. 50-324 SPECIAL REPORT PER TECHNICAL SPECIFICATION 3.7.8

Dear Mr. O'Reilly:

While performing the initial revised periodic test, PT 35.16.11, Fire Barrier Penetration Seals in the Diesel Generator Building, approximately 300 penetrations were found in a nonfunctional condition. These penetrations are located in the floor of the 50-foot elevation. under the 4160 volt crergency switchgear.

Approximately 90% of those penetrations have been repaired and the remaining 10% will be repaired during the next scheduled outage of sufficient length ~

uhere plant conditions will allow the e crgency busses to be selectively de-energized to allow repair.

A detailed review of the site fire barrier penetration seals over the past year determined that the numerous seals were not identified by the site contractors during and after construction, and that many of these seals had not been adequa.tely scaled during construction. Following this discovery, a concentrated effort was undertaken to identify and map all these seals throughout the plant. The identifying, mapping, and revising of all necessary periodic tests have been coupleted, and the perfor=ance of these test to verify the operability of all fire barrier penetration seals will be completed within the Technical Specification required time frame.

Very truly yours, gr[

A. C. Tollison, Jr., General Manager Brunswick Steam Electric Plant RMP/ meg a cc: Mr. R. A. Ilartfield Mr. V. S tello, Jr. #g 81 01290, M -

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