05000368/LER-1980-024-03, /03L-0:on 800408,while Performing Testing on Plant Protection Sys,A Spray Pump Started & a Containment Spray Header Isolation Valve Opened,Spraying Boric Acid Solution Into Reactor Bldg.Caused by Low Voltage Condition

/03L-0:on 800408,while Performing Testing on Plant Protection Sys,A Spray Pump Started & a Containment Spray Header Isolation Valve Opened,Spraying Boric Acid Solution Into Reactor Bldg.Caused by Low Voltage Condition

ML19316A742
Person / Time
Site:	Arkansas Nuclear
Issue date:	05/20/1980
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19316A737	List: 05000368/LER-1980-024, Forwards LER 80-024/03L-0 05000368/LER-1980-024-03, /03L-0:on 800408,while Performing Testing on Plant Protection Sys,A Spray Pump Started & a Containment Spray Header Isolation Valve Opened,Spraying Boric Acid Solution Into Reactor Bldg.Caused by Low Voltage Condition
References
LER-80-024-03L, LER-80-24-3L, NUDOCS 8005270435
Download: ML19316A742 (1)

LER-1980-024, /03L-0:on 800408,while Performing Testing on Plant Protection Sys,A Spray Pump Started & a Containment Spray Header Isolation Valve Opened,Spraying Boric Acid Solution Into Reactor Bldg.Caused by Low Voltage Condition

Event date:
Report date:
3681980024R03 - NRC Website

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REPORT DATE AQ EVENT DESCRIPTION AND PAOBABLE CONSEQUENCES h 1o121 1 Durina Mode 3 operation, while performina testing on the Plant Protection 3 1 System (PPS), the "A" spray pump started and the "A" containment spray I

o A i header isolation valve opened resulting in ~ 300 gals. of boric acid I

joisi t solution being sprayed into the RX building.

The"A"sprayhumpcontrol, switch was placed in pull-to-lock rendering the "A" spray train inoper-i ic ic i t Ic i)I L able.

"B" c: pray train remained operable.

There have been no similar i

e n, i occurrences.

Reportable per T.S. 6.9.1.9(b).

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<s CAUSE DESCRePTION AND CORRECflVE ACTIONS h filoll Investication revealed the cause of the spray actuation to be due to a i

low voltage condition present following the loss of transmission lines iii,i i i

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The in-house voltage was restored to normal i

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