ML20132D907

Responds to 850603 Comments on FA Spangenberg 850524 Request for Approval of Alternate Method of Meeting Intent of Certain Portions of Rev 1 to Reg Guide 1.108.Agrees That Periodic Start & Load Tests Can Be Combined

ML20132D907
Person / Time
Site:	Clinton
Issue date:	07/15/1985
From:	Butler W Office of Nuclear Reactor Regulation
To:	Parker M ILLINOIS, STATE OF
References
RTR-REGGD-01.108, RTR-REGGD-1.108 NUDOCS 8508010516
Download: ML20132D907 (4)

Text

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Docket No. 50-461 Mr. Michael C. Parker, Chief Division of Engineering State of Illinois Department of Nuclear Safety 1035 Outer Park Drive Springfield, Illinois 62704

SUBJECT:

CLINTON POWER STATION, UNIT 1, PERIODIC TESTIhG 0F DIESEL GENERATOR UNITS IN ACCORDANCE WITH REGULATORY GUILE 1.100, REVISION 1

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REFERENCES:

1. State of Illinois, Department of Nuclear Safety Letter DOE 084, Michael C. Parker to NRC, W. R. Butler, dated June 3,1985.

2. Illinois Power Company letter U-600016, F. A. Spangenberg to NRC, W. R. Butler, dated May 24, 1985 We have reviewed the cocraents provided by you (Ref.1) pertaining to the Illinois Power Conpany's request for approvel of an alternate method of neeting-the intent of certain pcrtions of Regulatory Guide 1.108, Revision 1 (Ref. 2).

The following is provided as our response to your comments.

The intent of repeating the R.G. 1.108 start and load tests in C.2.a.(1) and (2) following the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> loading test is to ensure that the diesel generators can start and accept their required loads in the prescribed time when the diesel generator is at its normal operating temperature and the nuclear unit is operaticnal. Such a condition would exist during the monthly 100% load testing of the diesel generators required by the plant Technical Specifica-tions. However, there is no similar requirement to periodically test the diescl Senerators at their two hour overload rating during plant operaticr.s (the only requirement for such a test is during the 18 month surveillance test-ingduringshutdown). Therefore, testing at the two hour overload condition while at operating temperature is not required for the start and load tests.

There also should be sufficient margin in the diesel engine jacliet water cooling system to maintain the same jacket water temperature at the continuous load as well as at the overload rating. The Illinois Power Company proposal to rerun the C.2.a.(1) and (2) tests following a run at 100% load until temperature is stabilized is therefore acceptable. This is also in accordance with the staff's requirements contained in the Standard Technical Specifications.

8508010516 850715 .

PDR ADOCK 05000461 A PDR

i- With regard to the 24-hour load test itself, it is our position that this

-test be conducted during preoperational testing and every 18 months thereafter

'during refueling shutdown exactly as prescribed in position C.2.a.(3) of R.G. 1.108 (22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> at'100% load.and 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> at the overload rating).

! We agree with the State of Illinois that the cctbination of testing required

.lar paragraphs C.2.a.(1) and C.2.a.(2) into a single test is~ acceptable.

If you have any questions regarding this response, please contact the Clinton Licensing Project Manager, Byron Siegel, at (301) 492-8344.

i Sincerely,

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4 Walter R. Butler, Chief l Licensing Branch No. 2 Division of Licensing cc: See next page DISTRIBUTION-

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With regard to the 24-hour load . test itself, it is our position that this test be cor. ducted during preoperational testing er.c every 18 months. thereafter during refueling shutdown exactly as prescribed in position C.2.a.(3) of' R.G. 1.108 (22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> at 100% lead and E hours at the overload rating).

We agrce with the State of Illinois that the combination of testing reqsirer.

by paragraphs C.2.a.(1) and C.2.a.(E) into a single test is acceptable.

If you have any questions regarding this response, please contact the Clinton Licensing Project flanager, Byron Siegel, at (301) 492-6342 Sincerely, f

Walter R. Butl':r, Chief Licensing Branch ho. E Division of Licensing cc: See next page m

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fir. Frank A. Spangenberg Clinton Power Station Illinois Power Company Unit I Jean Foy, Escuire n cc: lir. Allen Samuelson, Esquire Assistant Attorney General 511 W. Nevada Environmental Centrol Division Urbana, Illinois 61601 '

Southern Region j 500 South Second Street Richard B. Hubbard Springfield, Illinois 62706 Vice Frcsident Technical Associates fir. D. P. Hall 1723 Hamilton Ave. - Suite K Vice President San Jose, CA 95125 Clinton Power Station P. O. Box 678 Clinton, Illinois, 61727 Mr. H. R. Victor licnager-huclear Station Engineering Dpt.

Clinton Power Station P. O. Bcx 676 Clinton, Illinois 61727

Shelden 7abel, Escuire i- Schiff, Hardin & Waite 7200 Sears Tower

233 Uacker Drive j Chicago, Illinois 60606 l Resident Inspector i U. S. Nuclear Regulatory Commission i RR 3, Box 229 A Clinton, Illinois .61727 _

i* Mr. R. C. Heider Project Manager .

Sargent & Lundy Engineers

-55 East lionroe Street Chicago, Illinois 60603 Mr. L. Larson Projectlianager General Electric Company

! 175 Curtner Avenue, N/C 395 San Jose, Cclifornia 95125 fir. James G. Keppler U.S. NRC, Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 1

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