ML20002A740

LER 80-035/03L-0:on 801016,fire Barrier Between Cable Spreading Room & East Containment Electrical Penetration Room Found Breached.Apparently Caused by Removal of Temporary Cables W/O Proper Sealing.Barrier Resealed

ML20002A740
Person / Time
Site:	Millstone
Issue date:	11/14/1980
From:	Criscione J NORTHEAST NUCLEAR ENERGY CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20002A739	List: ML20002A738 ML20002A740
References
LER-80-035-03L, LER-80-35-3L, NUDOCS 8011210456
Download: ML20002A740 (1)

Text

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g to 61 DOCnETNUMBER EVENT DESCRIPfloN ANo pro 8 ABt E CoNSEouENCEs h 012] l Durjng routine startup operations, a fire barrier between the cable spreadino roon and I

,,3, y east containment electrical penetration room was found to have been breached. A fire I g , watch was stationed, and the plant aperated in accordance with Technical Specification 1 i

Action Statement 3.7.10. ~ The fire barrier was restored in 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. Similar Events: 1 l

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23 34 l36Z l@37 40 48 42 43 44 47 CAUSE DESCRIPTloN AND CORRECTIVE ACTIONS 27 iiOi lThe apparent cause of breach was removal of temporary cables passina throuah fire bar- I

,,,j g rier without proper sealing afterwards. Fire barrier consists of Dow Corning 3-654R I

, ,,, i si?icone RTV foam filled wall penetration through which cables pass. Barrier resealed I

,,3,  ; and restored to service. Departments that could become involved in work on fire bar- I

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