ML18095A208

Special Rept 90-01:on 900411,seven Fire Barrier Penetrations,Four Relay Room Penetrations & Three 100-ft Corridor Unit Common Penetrations Impaired for More than 7 Days.Hourly Fire Watch Established

ML18095A208
Person / Time
Site:	Salem
Issue date:	05/18/1990
From:	Miller L Public Service Enterprise Group
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
90-01, 90-1, NUDOCS 9005230327
Download: ML18095A208 (3)

Text

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• i e e l OPS~G Public Service Electric and Gas Company P.O. Box 236 Hancocks Bridge, New Jersey 08038 Salem Generating Station May 18, 1990 U. S. Nuclear. Regulatory Commission Document Control Desk Washington, DC 20555

Dear Sir:

SALEM GENERATING STATION LICENSE NO. DPR-70 DOCKET NO. 50-272 UNIT NO. 1 SPECIAL REPORT 90-1 This Special Report addresses fire barrier penetration seal impairments which have not been restored to functional status within seven (7) days. These penetrations have been impaired in support of planned work. This report has been prepared in accordance with the reporting requirements of Technical Specification Action Statement 3.7.11.a pursuant to Technical Specification 6.9.2.

S'i.ncerely yours,

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L. K. Miller General Mana~er -

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UNIT 1 SPECIAL REPORT 90~

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' 'I PLANT AND SYSTEM IDENTIFICATION:

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

Technical Specification 3.7.11; Fire Barriers Impaired For Greater Than Seven (7) Days in Support of Planned Work Event Dates: 4/18/90 Report Date:. 5/18/90 This report was initiated by Incident Report No.90-249.

CONDITIONS PRIOR TO OCCURRENCE:

4/11/90 - Mode -5 (Cold Shutdown)

DESCRIPTION OF OCCURRENCE:

This report addresses the planned impairment of fire barrier penetration seals. The impairments have lasted greater than seven (7) days in support of the associated design change work, therefore, a Special Report is required as per Technical Specification Action Statement 3.7.11.a.

On April 11, 1990, seven fire barrier penetration, four (4) Relay Room penetrations and three (3) 100' Corridor Unit 1 & 2 Common (North & South) penetrations were impaired in support of design change work (i.e., DCP lEC-3011). The penetrations are -3.5" in diameter and contain cable.

An hourly roving fire watch had been established for the above fire areas previously due to other fire protection concerns. Therefore, the requirements of Technical Specification Action Statement 3.7.11.a, were met.

Technical Specification 3.7.11 states:

"All fire penetrations (including cable penetration barriers, fire doors and fire dampers), in fire zone boundaries, protecting safety related areas shall be functional."

Action Statement 3.7.11.a states:.

"With one (1) or more of the above required fire barrier penetrations non-functional, within one hour either establish a continuous fire watch on at least one side of the affected penetration, or verify the OPERABILITY of fire detectors on at least one side of the non-functional fire barrier and establish an hourly fire watch patrol. Restore the non-functional fire barrier penetration(s) to functional status within 7 days or, in lieu of any other report required by Specification 6.9.1, prepare and submit a Special Report to the Commission pursuant

UNIT 1.SPECIAL REPORT 941t DESCRIPTION OF OCCURRENCE: (cont'd) to Specification 6.9.2 within the next 30 days outlining the action taken, the cause of the non-functional penetration and plans and schedule for restoring the fire barrier penetration(s) to functional status."

APPARENT CAUSE OF OCCURRENCE:

The root cause of the impairment of the fire barrier penetration was to support design change work.

ANALYSIS OF OCCURRENCE:

The functional integrity of the penetration fire barriers ensures that fires will be confined or adequately retarded from spreading to adjacent portions of the facility. This design feature minimizes the possibility of a single fire involving several areas of the facility. The fire barrier penetration seals are a passive element in the facility' fire protection program and are subject to periodic inspections. This report satisfies the reporting requirements of Technical Specification Action Statement 3.7.11.a pursuant to Technical Specification 6.9.2 since the time between discovery and eventual repair of the fire barrier impairments is greater than seven (7) days. Appropriate actions were already in place in accordance with the requirements of Technical Specification Action Statement 3.7.11.a to establish an hourly roving fire watch patrol for the

• impaired fire barriers once the impairments were identified.

The subject fire areas contain detection in addition to the roving fire watch patrol. Therefore, it is reasonable to assume that a fire in the areas would be detected before it could involve an.adjacent area. This occurrence therefore involved no undue risk to the health or sa~ety of the public.

CORRECTIVE ACTION:

The hourly roving fire watch patrol, as addressed in the Description of Occurrence section, will continue until all fire protection concerns associated with the subject areas is resolved.

The repair of the penetrations was not accomplished within seven (7) days due to the time required to support the associated design change work. Upon completion of the design change work, the penetrations will be sealed. The hourly fire watch, as addressed in the Description of Occurrence section, will continue until all fire protection concerns associated with these areas are resolved.

MJP:pc SORC Mtg.90-053

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