ML20148S570
| ML20148S570 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 04/13/1988 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20148S574 | List: |
| References | |
| NUDOCS 8804190087 | |
| Download: ML20148S570 (3) | |
Text
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ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENT 9 (Continued) b.
At least once per 92 days and within 7 days after a battery discharge where the battery terminal voltage decreased below 110 volts or battery overcharge above 150 volts, by verifying that:
1 The parameters in Table 4.8-3 meet the Category B limits, 2.
There is no visible corrosion at either terminals or connectors, or the connection resistance of these items is less than 150 x 10 to the minus 6 ohms, and 3.
Average electrolyte temperature of at least 10 connected cells is above 60*F.
c.
At least once per 18 months by verifying that:
1.
The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration.
2.
The cell-to-cell and terminal connections are clean, tight, and coated with anti-corrosion material.
3.
The resistance of each cell-to gell and teminal connection is less than or equal to 150 x 10* ohms.
4 The battery charger will supply at least 200 amperes at 125 volts for at least 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
d.
At least once per 18 months, during shutdown, by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status all of the actual or simulated emergency loads for the design duty cycle when the battery is subjected to a battery service test.
e.
At least once per 60 months, during shutdown, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. Once per 60 month interval, this discharge performance test may be performed in place of the battery service test.
f.
At least once per 18 months, during shutdown, perform a performance discharge test of battery capacity if the battery shows signs of
+
degradation or has reached 85% of its service life expected for the appitcation. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its average from previous performance discharge tests, or is below 90% of the manufacturer's rating.
G804190037 800413 PDR ADOCK 05000330 P
ppg 4
NORTH ANNA - UNIT 2 3/4 8-14 Amendment No. 84
TABi.E 4.8-3 BATTERY SURVEILLANCE REQUIREMENTS CATEGORY A(I)
CATEGORY B(2)
Parameter Limits for each limits for each Allowable (3}
designated pilot connected cell value for each cell connected cell Electrolyte
> Minimum level
> Minimum level Above top of Level indication mark, indication mark, plates, and and < 1/4" above and < 1/4" above not over-maximum level maximum level flowing indication mark indication mark Float Voltage
> 2.13 vol ts
> 2.13 volts (c)
> 2.07 volts Specific
> 1.200(b)
> 1.195 Not more than
.020 below the average of all connected cells Average of all Average of all connected cells connectg) cells
> 1.205
> 1.195 (a)
Corrected for electrolyte temperature and level.
(b) Or battery charging current is less than 12 amps when on charge (station battaries only).
(c)
For any cell with voltage below the limit and electrolyte temperature > 3*F from the average electrolyte temperature, correct the cell voltage for average electrolyte temperature.
(1)
For any Category A parameters (s) outside the limit (s) shown, the battery may be considered OPERABLE provided that within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> all the Category B measurements are taken and found to be within their allowable values, and provided all Category A and B parameter (s) are restored to within limits within the next 6 days.
(2)
For any Category B parameter (s) outside the limit (s) shown, the battery may be considered OPERABLE provided that the Category B parameter (s) are l
within their allowable values and provided the Category B parameter (s) are restored to within limits within 7 days.
(3) Any Category B parameter not within its allowable value indicates an inoperable battery.
NORTH ANNA - UNIT 2 3/4 8-14a Amendment No. 84
5 Mr. W. L. Stewart North Anna Power Station Virginia Electric & Power Company Units 1 and 2 l4 cc:
Mr. William C. Porter, Jr.
Atomic Safety and Licensing Appeal County Administrator Board Panel Louisa County U.S. Nuclear Regulatory Comission P.O. Box 160 Washington, DC 20555 Louisa, Virginia 23093 Regional Administrator, Region II Michael W. Maupin, Esq.
U.S. Nuclear Regulatory Coraission Hunton and Williams 101 Marietta Street N.W., Suite 2900 P. O. Box 1535 Atlanta, Georgia 30323 Richmond, Virginia 23212 Mr. W. T. Lough Virginia Corpor. tion Comission Mr. E. W. Harrell Division of Energy Regulation P. O. Box 402 P. O. Box 1197 Mineral, Virginia 23117 Richmond, Virginia 23209 Old Dominion Electric Cooperative Ellyn R. Weiss, Esq.
c/o Executive Vice President Harmon, Weiss and Jordan Innsbrook Corporate Center 2001 S Street NW 4222 Cox Road, Suite 102 Washington, DC 20009 Glen Allen, Virginia 23060 Mr. J. T. Rhodes James B. Xenley, M.D., Comissioner Senior Vice President - Power Ops.
Department of Health I
Virginia Electric and Power Co.
109 Governor Street t
Post Office Box 26666 Richmond, Virginia 23219 Richmond, Virginia 23261 Mr. Patrick A. O' Hare Office of the Attorney General Supreme Court Building 101 North 8th Street 1
Richmond, Virginia 23219 Resident Inspector / North Anna c/o U.S. NRC Senior Resident Inspector Route 2, Box 78 Mineral, Virginia 23117 j
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