ML20234F057

Notice of Violation from Insp on 870622-0702 & Followup Insp on 871020.Violation Noted:Fire Protection Features Not Provided for Control Cables Associated W/Emergency Diesel Generators

ML20234F057
Person / Time
Site:	Limerick
Issue date:	12/30/1987
From:	Russell W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20234F028	List: ML20234F025 ML20234F057
References
50-352-87-27, EA-87-196, NUDOCS 8801110311
Download: ML20234F057 (2)

Text

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NOTICE OF VIOLATION Philadelphia Electric Company Docket No. 50-352 Limerick Generating Station, Unit 1 License No. NPF-39 EA 87-196 i

The NRC special safety construction tear.. inspection on June 22 to July 2,1987,  !

and a followup inspection on October 20, 1987 in response to a licensee event report on October 5,1987, reviewed the circumstances associated with the identification of a violation of NRC requirements. In accordance with the

" General Statement of Policy and Procedure for NRC Enforcement Actions," 10 CFR Part 2, Appendix C (1987), the violation is set forth below:

License Condition 2.c.3, requires, in part, that the licensee maintain in effect all provisions of the Fire Protection Evaluation Report (FPER) through Revision 6.

Section 3.2.1 of the FPER through Revision 6 specifies that fire protection features shall be provided for structures, systems, and components important to safe shutdown, and shall be capable of limiting fire damage so that one train of systems necessary to achieve and maintain hot shutdown conditions from either the control room or emergency control station (s) is free of fire damage.

Contrary to the above, as of October 2, 1987., fire protection features were not provided for control cables associated with the Emergency Diesel Generators (EDGs), a system important in maintaining safe shutdown, to assure that one redundant train remained free of fire damage. These control cables were associated with the automatic fire suppression system flow switches that shut down the EDGs in the event of a fire in the EDG room. These cables were routed in the service water pipe tunnel area and were not provided with a means to maintain one of the trains free of fire damage. If a fire occurred in the tunnel area, it could create multiple internal shorts in the connections between the flow switches and associated time delay relays resulting in trip signals for all four EDGs, with two EDGs required by the FPER to achieve and maintain hot shutdown.

This is a Severity Level III violation (Supplement I).

Pursuant to the provisions of 10 CFR 2.201 Philadelphia Electric Company is hereby required to. submit a written statement or explanation to the U.S.

Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 20555, with a copy to the Regional Administrator, Region I, and a copy to the NRC Resident Inspector, within 30 days of the date of the letter transmitting this Notice. .This reply should be clearly marked as a " Reply to a Notice of Violation and should include for each violation: (1) the reason for the violation if admitted, (2) the corrective steps that have been taken and the results achieved, (3) the corrective steps that will be taken to avoid further violations, and (4) the date when full compliance will be achieved. If an adequate reply is not received within the time specified in this Notice, an 0FFICIAL RECORD COPY CP PKG LIMERICK REV 1 12/29 -

0004.0.0 8801110311 871230 12/30/87 PDR ADOCK 05000352 G PDR

Notice of Violation order may be issued to show cause why the license should not be modified, l

l suspended, or revoked or why such other action as may be proper should not l be taken. Consideration may be given to extending the response time for good cause shown.

FOR THE NUCLEAR REGULATORY COMMISSION l

Ori:inal Sicned By l

17ILLIL. T. rf23 ELL l William T. Russell Regional Administrator Dated at King of Prussia, Pennsylvania this J 0 day of December 1987 1

0FFICIAL RECORD COPY CP PKG LIMERICK REV 1 12/29 -

0005.0.0 12/30/87

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