ML18096A826

Special Rept 92-5:on 920623,actuation Capability of 78-ft Lower Electrical Penetration CO2 Fire Protection Sys Inoperable for More than 14 Days.Caused by Required Maint Work.Sys Returned to Svc on 920702

ML18096A826
Person / Time
Site:	Salem
Issue date:	07/09/1992
From:	Vondra C Public Service Enterprise Group
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
92-5, NUDOCS 9207200052
Download: ML18096A826 (3)

Text

e PS~G Public Service Electric and Gas Company P.O. Box 236 Hancocks Bridge, New Jersey 08038 Salem Generating Station U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555

Dear Sir:

SALE~ GENERATING STATION LICENSE NO. DPR-70 DOCKET NO. 50-272 UNIT NO. 1 SPECIAL REPORT 92-5 July 9, 1992 This Special Report addresses the inoperability of the 78 1 Lower Electrical Penetration Area co2 Fire Protection System for greater than 14 days.

This report is submitted for informational purposes in accordance with Technical Specification 3.7.10.3d Action "a" pursuant to Specification 6.9.2.

MJP:pc Distribution

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PDR Sincerely yours,

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c. A. Vondra General Manager -

Salem Operations p?J 1 I 1 95-2189 (10M) 12-89

UNIT 1.SPECIAL REPORT 92-5 PLANT IDENTIFICATION:

Salem Generating Station - Unit 1 Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

78' Lower Electrical Penetration co2 Fire Protection System Inoperable For.Greater Than Fourteen Days Event Date(s):

Report Date:

6/23/92 7/9/92 This event is documented in Incident Report No.92-389.

CONDITIONS PRIOR TO OCCURRENCE:.

Mode 5 (Cold Shutdown); 10th Refueling Outage in progress DESCRIPTION OF OCCURRENCE:

This special report describes the inoperability of the actuation capability of the 78'.Lower Electrical Penetration co2 Fire Protection System for greater than fourteen (14) days.

This report is submitted for informational purpo~es in accordanpe-with Technical Specification 3.7.10.3 Action Statement "a" which states:

"With one or more of the above required low pressure COi systems inoperable, establish a continuous fire watch with backup fire suppression equipment foi the-unprotected area{s) within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />; restore the system to OPERABLE status within 14 days or, in lieu of any other report required by Specification 6.9.1, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within the next 30 days outlining the action taken, the cause of the inoperability and the plans and schedule for restoring the system to OPERABLE status".

On June 9, 1992, Technical Specification Action statement 3.7.10.3a.a was entered when the auotmatic actuation feature for the 78' Lower Electrical Penetration co2 Fire Protection System was made inoperable in support of area maintenance activities.

A continuous fire watch was established as required by the Technical Specification Action Statement.

APPARENT CAUSE OF OCCURRENCE:

The cause of the co2 systems' inoperability, for greater than fourteen (14) days, was to support maintenance work activities.

ANALYSIS OF OCCURRENCE:

The 78 1 Lower Electrical Penetration CO Fire Protection System is designed to mitigate the consequences of a fire.

Upon making the system automatic actuation feature inoperable, a continuous fire I

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UNIT 1 SPECIAL REPORT 92-5 ANALYSI.S OF OCCURRENCE:

(cont'd) watch was. implemented per Technical Specification Action statement 3.7.10.3c.a.

The assigned fire watch provides early fire warning such that compensatory actions could be implemented; therefore, this situation does not affect the health or safety of the public.* This event is reportable to the Nuclear Regulatory commission in accordance with the requirements.of Technical Specification Action Statement 3.7.10.3c.a pursuant to Technical Specification 6.9.2.

CORRECTIVE ACTION:

The 78' Lower Electrical Penetration Area maintenance work has been completed.

Subsequently, on July 2, 1992, the area co2 system was returned to service and the continuous fire watch discontinued.

MJP:pc SORC Mtg.92-076 d~

General Manager -

Salem Operations