ML20203L909
| ML20203L909 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 08/25/1986 |
| From: | Bailey J GEORGIA POWER CO., SOUTHERN COMPANY SERVICES, INC. |
| To: | Youngblood B Office of Nuclear Reactor Regulation |
| References | |
| GN-1059, NUDOCS 8609020046 | |
| Download: ML20203L909 (2) | |
Text
Georgia Pbwer Comparif a
Pest Offico Box 282 Waynesborn Georgia 30830 Telephone 404 554-9961 404 724 4114 Southern C mpany Services, Inc Post Office Box 2625 Birmingham, Alabama 35202 Telephone 205 8704011 ymg pg August 25, 1986 Director of Nuclear Reactor Regulation File: X7BC35 Attention:
Mr. B. J. Youngblood Log:
GN-1055 PWR Project Directorate #4 Division of PWR Licensing A U. S. Nuclear Regulatory Commission Washington, D.C.
20555 NRC DOCKET NUMBERS 50-424 AND 50-425 CONSIRL'CTION PERMIT NUMBERS CPPR-108 AND CPPR-109 V0GTLE ELECTRIC GENERATING PL\\NT - UNITS 1 AND 2 SER CONFIRMATORY ITEM 35: PROCEDURES FOR LOAD FOLLOWING TEST
Dear Mr. Denton:
Attached.for your staff's review is a revised response to Q430.2. This response pertains to the running of the diesel generators under no-load conditions as noted in the subject SER confirmatory item and is consistent with the manufacturer's recommendations. This revision will appear in Amendment 25 to the FSAR.
l If your staff requ'irec any additional information, pleano do not hesitate to contact me.
Sincerely, J. A. Bailey Project Licensing Manager J
JAB /caa Attachment xc:
R. E. Conway NRC Resident Inspector R. A. Thomas NRC Regional Administrator J. E. Joiner, Esquire D. C. Teper B. W. Churchill, Esquire W. C. kamsey M. A. Miller (2)
L. T. Gucwa B. Jones, Esquire Vogtle Project File G. Bockhold, Jr.
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0688V 9609020046 860025 PDR ADOCK 0D000424 E
A hh me Gk VEGP-FSAR-Q D.
Upon completion of repairs or maintc~ nance and prior to an actual start, run, and load test, a final equipment check should be made to assure that all electrical circuits are functional; i.e.,
fuses are in place, switches and circuit breakers are in their proper
()
position, there are no loose wires, all test leads have been removed, and all valves are in the proper positions to permit a manual start of the equipment.
After the unit has been satisfactorily started and load tested, return the unit to ready automatic standby service and under the control of the control room l) operator.
Provide a discussion of how the above requirements have been implemented in the emergency diesel generator system design and how they will be considered when the plant is in commercial operation, i.e.,
by what means will the above requirements be
~
enforced.
Response
The following responses correspond to the above questions:
A.
VEGP has developed diesel generator procedures for post l.
maintenance / repair testing, operation during troubleshooting, and operation during a loss-of-coolant accident (LOCA).
These procedures require the diesel generators to be operated at a minimum of 30 percent of rated load.
In addition, these procedures will include h4 a provision to ensure that if prolonged operation at less than 30 percent cannot be avoided, then the diesel 13 will be operated at greater than 50 percent load for at least ene hrur for every 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of unloaded operation.
24 two hours B.
VEGP is in conformance with Regalatory Guide 1.108.
FSAR section 8.3.1.1.3-H describes curveillance testing to be at " full load-carrying capability (continuous O
rating) for an interval ot not less than 1 h",
and tFat v
the test will be conducted "on 31-day test intervals."
C.
Presently, preventive maintenance identified for the diesel generators incorporates the manufacturers recommendations.
As a member of the Transamerica
((~}
Delaval, Inc., (TDI) diesel generator owners group, project management will have access to investigative studies and history of repeated malfunctioning of components.
The TDI diesel generator owners group is presently developing recommendations for preventive Amend. 7 5/84 Amend. 13 1/85 Q430.3-2 Amend. 24 6/86 f
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