ML20090E037
| ML20090E037 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 02/25/1992 |
| From: | Larkins J Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20090E040 | List: |
| References | |
| NUDOCS 9203090198 | |
| Download: ML20090E037 (6) | |
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/p* *f og'h UNITED STATES l' 3 m ' 1 NUCLE AR REGULATORY COMMISSION 5
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W ASHINGTON, D, C. 20566 o
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's, EN1ERGY OPERATIONS. INC.
SYSTEM ENERGY RESOURCES. INC.
SOUTH HISSISSIPPI ELECTRIC POWER ASSOCIATION HISSISSIPPI POWER AND LIGHT COMPANY EQCKET NO. 50-416 GRAND GVLF NUfLEAR STATION. UNIT 1 AMENDMENT TO FACILITY OPERATING LICENS1 Amendment No. 90 License No. NPF-29 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment by Entergy Operations, Inc. (the licensee) dated January 11, 1991, and supplements thereto dated March 13 and October 9, 1991, comply with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act),
and the Commission's rules and regulations set forth in 10 CFR Chapter I; B.
The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.
There is reasonable assurance (i) that the activities authorized by this amendment can be conductet sithout endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D.
The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.
9203090198 920225 PDR ADOCK 05000416 P
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Accordingly, the license is amended by changes to the Technical Specifications, as indicated in the attachment to this license amendment; and paragraph 2.C.(2)llows:of facility Operating License No. tiPF-29 is hereby amended to read as fo (2) Technical Specifications The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Artendment lio. 90, are hereby incorporated into this license.
Entergy Operations, Inc, shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.
3.
This license amendment is effective as of its date of issuance.
FOR THE f4VCLEAR REGULATORY COMMISS10f1 Vo <.~
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John T. Larkins, Director Project Directorate IV-1 Division of Reactor Projects - Ill/lV/V Office of fluclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance:
February 25, 1992 4
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1 61TACHMENT-TO L1CINSE AMENDMENT NO. 90 FAClllTY OPERATING llCENSE NO. NPE-29 i
DOCKET NO. 50-416 Replace the following pages of the Appendix A Technical Specifications with the attached pages.
The revised pages are identified by amendment number and contain vertical lines indicating the area of change.
The corresponding overleaf pages are also provided to maintain document completeness.
J REMOVE PAGES INSERT PAGES 3/4 8-12 3/4 8-12 0 3/4 8-2 B 3/4 8-2 i
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[LECTRICAL P0 DER SYSTEMS i
$URVE1LLANCE REQUIREMENTS 4.8.2.1 Each of the above required 125 volt batteries and chargers shall bt cemonstrated OPERABLE:
At least once per 7 days by verifying that:
a.
1.
The parameters in Table 4.8.2.11 seet the Category A limits, and
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2.
Total battery terminal voltage is greater than or equal to 129 volts on float charge.
b.
At least once per 92 days and within 7 days af ter a battery discharge with battery terminal voltage below 110 volts, or battery overcharge with battery terminal voltage above 150 volts, by verifying that:
1.
The parameters in Table 4.8.2.11 seat the Category 8 lirits, 2.
There is no visible corrosion at either terminals or cannectors, or the connection resistance of these items is less than 150 x 10 ' ches, and 3.
The average electrolyte temperature of every sixth connected cells is above 60'F.
At least once per 18 months by verifying that:
c.
1.
The cells, cell plates and battery racks show no visual irdication of physical damage or abnormal deterioration, 2.
The cell-to cell and terminal connections are clean, tight, f ree of corrosion and coated with anti corrosion material, 3.
The resistance of each cell and terminal connection is less than or equal to 150 x 10.s ches, and 4.
The battery charger will supply:
a)
For Divisions 1 and 2, at least 400 asperes at a minimui cf 125 volts for at least lo hours, b)
For Division 3, at least 50 asperes at a minimum of 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 />.
GRAND GULF UNIT 1 3/4 6 11
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ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 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 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> for i
Divisions 1 and 2 and 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for Division 3 when the battery is subjected to a battery service test.
l At least once per 60 months during shutdown by verifying that the e.
battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test.
Once per 60 month 1
interval, this performance discharge test may be performed in lieu of the battery service test.
f.
Annual performance discharge tests of battery capacity shall be given to any battery that shows signs of degradation or has reached 85% of the service life expected for the application.
Degradation is indicated when the battery capacity drops more than 10% of rated capacityfromitsaverageonpreviousperformancetests,orisbelow 90% of the manufacturer s rating.
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GRAND GULF-UNIT 1 3/4 8-12 Amendment No. Ig, 90
ELECTRICAL POWER SYSTEMS BASES A.C. SOURCES, D.C. SOURCES and DNSITE POWER DISTRIBUTION SYSTEMS (Continued)
The surveillance requirements for demonstrating the OPERABILITY of the unit batteries are in accordance with the recommendations of Regulatory Guide 1.129 " Maintenance Testing and Replacement of Large Lead Storage Batteries for Nuclear Power Plants," February 1978, and IEEE Std 450-1980, "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations.".
Verifying average electrolyte temperature above the minimum for which the battery was sized, total battery terminal voltage onfloat charge, connection resistance values and the performance of battery service and discharge tests ensures the effectiveness of the charging system, the ability to handle high discharge rates and compares the battery capacity at that time with the rated capacity.
Tne simulated emergency load profile used for the battery service test of.
Surveillance Requirement 4.8.2.1.d is verified to be at least equivalent to the actual emergency load profile and is based on anticipated operations required after an AC power loss during accident conditions as described in the Updated Final Safety Analysis Report (UFSAR).
The simulated emergency load profiles for the three divisional batteries are defined and located in the UFSAR Section 8.3.
Table 4.8.2.1-1 specifies the normal limits for each designated pilot cell and each connected cell for electrolyte level, float voltage and specific gravity.
The limits for the designated pilot cells float voltage and specific gravity, greater than 2.13 volts and 0.015 below the manufacturer's full charga specific gravity or a battery charger current that had stabilized at a low value, is characteristic of a charged cell with adequate capacity.
The normal limits for t.ach connected cell for float voltage and specific gravity, greater than 2.13 volts and not more than 0.020 below the manufacturer's full charge specific gravity with an average specific gravity of all the connected cells not more than 0.010 below the manufacturer's full charge specific gravity, ensures the OPERABILITY and capability of the battery.
Exceptions to the specific gravity requirements are taken to allow for the normal deviations experienced after a battery discharge and subsequent recharge associated with a service or per-formance discharge test.
The specific gravity deviations ara recognized by and discussed-in IEEE 450-1980.
Operation with a battery cell's parameter outside the normal limit but within the allowable value specified in Table 4.8.2.1-1 is permitted for up to 7 days.
During this 7 day period:
(1) the allowable values for electrolyte level ensures no physical damage to the plates with an adequate electron transfer capability; (2) the allowable value for the average specific gravity of all the cells, not more than 0.020 below the manufacturer's recommended full charge specific gravity, ensures-that the decrease in rating will be less than the-safety margin provided in sizing; (3) the allowable value for an individual cell's specific gravity ensures that an individual cell's specific gravity will not be more than 0.040 below the manufacturer's full charge specific gravity and that the overall capability of the battery will be maintained within an acceptable limit; and (4) the allowable value for an individual cell's float voltage, greater than 2.07 volts, ensures the battery's capability to perform its design function.
GRAND GULF-UNIT 1 B 3/4 8-2 Amendment No. 90
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