ML20134H664
| 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: |
| References | |
| 50-369-85-10, 50-370-85-11, TAC-59698, TAC-59699, NUDOCS 8508290081 | |
| Download: ML20134H664 (1) | |
See also: IR 05000207/2007003
Text
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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
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
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
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Date:
$8290081850815
ADOCK 05000369
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