05000334/LER-1980-008-01, /01T-0:on 800225,review Conducted of as-built Configuration of Cable Trays & Conduits Attached to Underside of Cable Lateral Earthquake Components.Potential Overstress Condition Found.Cause Unknown

/01T-0:on 800225,review Conducted of as-built Configuration of Cable Trays & Conduits Attached to Underside of Cable Lateral Earthquake Components.Potential Overstress Condition Found.Cause Unknown

ML19344D294
Person / Time
Site:	Beaver Valley
Issue date:	03/04/1980
From:	Werling J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19344D281	List: 05000334/LER-1980-007-01, Er 80-007/01T-0:on 800121,during Reload After Defueling, Main Filter Banks Found Not in Svc.Caused by Procedural Inadequacy Because None of Refueling Checklists Indicated Tech Spec Change That Required Flow 05000334/LER-1980-010-03, /03L-0:on 800131,refueling Team Was Given Go Ahead for Core Alterations.Fifteen Minutes Later,Inservice Boric Acid Transfer Pump CH-P-2B Tripped on Thermal Overload. Probably Caused by Faulty Blender Controls Shifting Speed 05000334/LER-1980-011-03, /03L-0:on 800226,during Boron Injection Flow Path Verification,Operator Stroked MOV-SI-869A Connecting Charge Sys Fill Header to RCS Hot Leg Piping.Valve Opened & Linestarter Tripped.Caused by Burnt Motor in MOV-SI-869A ML19344D280
References
LER-80-008-01T, LER-80-8-1T, NUDOCS 8003110641
Download: ML19344D294 (2)

LER-1980-008, /01T-0:on 800225,review Conducted of as-built Configuration of Cable Trays & Conduits Attached to Underside of Cable Lateral Earthquake Components.Potential Overstress Condition Found.Cause Unknown

Event date:
Report date:
3341980008R01 - NRC Website

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EVE'4T CESCRIPfl0'J A 0PROSA C

ENCES g. ' Iliased on in-plant inspections, a review has been conducted on the as-built l

g ] confinuration of enhle trays and conduits that are attached to the underside of the l

1,14l l cable spreading floor at elevation 725 ft.

Due to the light design of the floor l

lo isi l beans, there has been indicated a potential overstress condition. The overstress l

l o le 1 I is due to postulated earthquake loadine. The floor support system has been checked l l o ( 7 l l for the normal dead load, live load, and vertical earthquake components have been

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ga p il determined satisfactory. l9teral carthquake components are (continued on attached)I 5C

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m 1 due to the refueling outace, we considered it necessary to check the adequacy of 1

U,,J1] I the steel beams for the OBE conditions.

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Attachment To I.ER 80-03/OlT I

Ileaver Valley Power Station Duquesne 1.ly,ht Company I

Docket No. 50-334 e

I Event Description And l'robable Consequencesi the cause of the local overstress condition.

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