ML20134H664

Notice of Deviation from Insp on 850207-0703

ML20134H664
Person / Time
Site:	Mcguire, McGuire
Issue date:	08/15/1985
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20134H653	List: IR 05000207/2007003 ML20134H650 ML20134H661 ML20134H664
References
50-369-85-10, 50-370-85-11, TAC-59698, TAC-59699, NUDOCS 8508290081
Download: ML20134H664 (1)

See also: IR 05000207/2007003

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ENCLOSURE 2

NOTICE OF DEVIATION

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Duke Power Company Docket Nos. 50-369 and 50-370

McGuire Nuclear Station License Nos. NPF-9 and NPF-17

The following deviction was identified during an inspection conducted on

February 7 - July 3, 1985.

Final Safety Analysis Report, Section 8.3.2, states that battery performance

discharge tests will be conducted in accordance with IEEE 450-1972.

IEEE 450-1972 requires that performance discharge tests be conducted at a

determined discharge rate until the battery reaches a minimum voltage

determined by the number of connected cells and the minimum voltage per cell

identified in the vendor manual.

Industry Standard IEEE 450-1972 and the battery vendor manual recommends an

equalizing charge be conducted when the specific gravity of any individual

cell drops 0.010 or more below the average of all cells, or the individual

cell voltage (ICV) of any cell varies by 0.04 volts or more from the average

ICV within the battery or any cell ICV is below 2.13 volts.

Cont,rary to the above:

1. Performance discharge tests conducted in January 1980 on all four vital

and Instrument Control Batteries discharged the batteries at only a

one-hour rate for one hour.

2. Equalizing charges have not been conducted on the Vital and

Instrument Control Batteries in the past two years except as

restoration from a service discharge test. Battery EVCA met the

reference criteria for requiring an equalizing charge in nearly all

months in the past two years.

Please provide, in writing within 30 days of the date of this Notice, a descrip-

tion of corrective actions regarding these deviations, actions taken to avoid I

further deviations, and the dates when these actions were or will be completed.

Security or safeguards information should be submitted as an enclosure to

facilitate withholaing it from public disclosure as required by 10 CFR 2.790(d)

or 10 CFR 73.21.

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AUG 151985

! Date:

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$8290081850815

ADOCK 05000369

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