ML20206S571

Notice of Violation from Insp on 870302-06

ML20206S571
Person / Time
Site:	Prairie Island
Issue date:	04/17/1987
From:	Harrison J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20206S541	List: IR 05000282/1987004 ML20206S534 ML20206S571
References
50-282-87-04, 50-282-87-4, 50-306-87-04, 50-306-87-4, NUDOCS 8704220419
Download: ML20206S571 (2)

Text

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APPENDIX NOTICE OF VIOLATION Northern States Power Company Docket Nos. 50-282; 50-306 As a result of the inspection conducted on March 2-6, 1987, and in accordance with the " General Policy and Procedures for NRC Enforcement Actions,"

10 CFR Part 2, Appendix C (1985), the following violations were identified:

1. Sections III.G.2 and III.L.7 of Appendix R state in part:

"2. . . . where cables or equipment, including associated non-safety circuits that could prevent operation or cause maloperation due to hot shorts, open circuits, or shorts to ground of redundant trains of systems necessary to achieve and maintain het shutdown conditions . . . means of ensuring that one of the redundant trains is free of fire damage shall be provided ....

7. The safe shutdown equipment and systems for each fire area shall be known to be isolated from associated non-safety circuits in the fire area so that hot shorts, open circuits, or shorts to ground in the associated circuits will not prevent operation of the safe

shutdown equipment . . . ."

Contrary to the above, at the time of the inspection, certain plant areas did not meet the above associated circuit common bus and spurious signal requirement areas in that:

a. Fire Areas 31, 32, 58, 59, 60, 73, 74, and 75 lacked circuit breaker coordination,

b. The D1 Diesel Generator and Hot Shutdown Pancis A and B isolation switches do not provide redundant fusing of the 125 VDC control power.

In addition, as a result of the two examples identifying an associated circuit requirement violation, a violation of 10 CFR 50.48(c)(2) also occurred in that the granted schedular exemption implementation date had passed.

This is a Severity Level IV violation (Supplement !).

2. Section !!!.J of Appendix R requires emergency lighting units with at least an eight hour battery power supply shall be provided in all areas needed for operation of safe shutdown equipment and in access and egress routes thereto.

0704220419 070417 PDR ADOCK 0D000202 O PDH

Notice of Violation 2 Contrary to the above, eight hour emergency lighting was not provided for access and egress routes to the Diesel Generator Room No. 1 and inside the Turbine Building operators shack. In addition, as a result of the two areas found with no emergency lighting units installed, a violation of 10 CFR 50.48(c)(2) also occurred in that the granted schedular exemption implementation date had passed.

1 This is a Severity Level IV violation (Supplement I).

Pursuant to the provisions of 10 CFR P.201, you are required to submit to this office within thirty days of the date of this Notice a written statement or explanation (1) corrective action taken and theinresults reply, achieved; including (for each violation:

2) corrective action to be taken to avoid further violations; and (3) the date when full compliance will be achieved.

Consideration may be given to extending your response time for good cause shown.

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Date APRi7:y;f F G.EN J. J. Harrison, Chief Engineering Branch I

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