ML20206A522
| ML20206A522 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 04/02/1987 |
| From: | Gucwa L GEORGIA POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| SL-2155, NUDOCS 8704080060 | |
| Download: ML20206A522 (4) | |
Text
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Georgia Fbwer Company l
333 hermont Avenue i
Atlanta, Georgia 30308 Telephone 404 526-6526 Mading Address:
Post Office Box 4545 Attanta, Georgia 30302 Georgia Power L T. Gucwa tre southem enxyc syMem Manager Nuclear Safety ano ucens ng SL-2155 0133U April 2,1987 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C.
20555 NRC DOCKET NUMBER 50-424 OPERATING LICENSE NPF-68 V0GTLE ELECTRIC GENERATING PLANT - UNIT 1 CHANGES IN INITIAL STARTUP TEST PROGRAM Gentlemen:
The following information is prcvided in accordance with Operating License Condition 2.C.(3) whereby Georgia Power Company (GPC) is to report any changes to the Initial Test Program described in Section 14 of the FSAR made in accordance with the provisions of 10 CFR 50.59.
The Natural Circulation Test described in FSAR Section 14.2.8.2.47 has been revised to reflect the separation of this test from the Loss of Offsite Power Test.
The revised Natural Circulation test deletes those provisions included to account for performance of the test with a simulated loss of offsite power.
Also deleted is the prerequisite for the reactor to be at low power, allowing the Natural Circulation test to j
be performed using decay heat.
Enclosed is an abstract of the revised t
test.
The revisions to the test abstract will be incorporated in a future FSAR amendment.
Please contact this office if you have any questions.
Sincerely, M&v L. T. Gucwa EMB:jhu c: (see attachment)
I 87?4090060 870402
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GeorgiaPower A 1
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U. S. Nuclear Regulatory Commission SL-2155 Attn: Document Control Desk 0133U Apr.i 2, 1987 Page Two c:
Georc ia Power Company Mr. L. E. Conway Mr. J. P. O'Reilly Mr. G. Bockhold, Jr.
GO-NORMS i
Southern Company Services j
Mr. J. A. Bailey Shaw, Pittr.!an, Potts & Trowbridge Mr. B. W. Churchill, Attorney-at-Law i
Troutman, Sanders, Lockerman &Ashmore Mr. J. E. Joiner, Attorney-at-Law U. S. Nuclear Regulatory Commission Dr. J. N. Grace, Regional Administrator Mr. H. H. Livermore, Senior Resident Inspector-Construction, Vogtle Ms. M. Miller, Licensing Project Manager, NRR Mr. J. F. Rogge, Senior Resident Inspector-Operations, Vogtle Georgians Against Nuclear Energy Mr. D. Feig Ms. C. Stangler i
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ENCLOSURE TO SL-2155 ABSTRACT OF FSAR 14.2.8.2.47, " NATURAL CIRCULATION TEST" FSAR Section 14.2.8.2.47, last changed in Ammendment 25 (dated 9/86), " Natural Circulation Test",
has been changed to separate it from loss of offsite power and clarify performance using only decay heat. The entire abstract is shown below. Strikeouts indicate deletions, underline additions.
A.
Objectives 1.
To demonstrate the capability to remove decay heat by natural circulation.
2.
To demonstrate the plane een be maintained in a stable eenditten en netweal efeewlaelen by weing the besteeles and diesel powee supplies that primary parameters can bji controlled within acceptable limits.
B.
Prerequisites 1,
Reaesee is se low poweev 21.
Reactor coolant pumps are operating.
32.
Primary system is at normal operating temperature and pressure.
C.
Test Method 1.
The test will be initiated by efaulating a less of the main generatee and effette powee seweees tripping off all reactor coolant pumps.
2.
Natural circulation will be verified by observing the response of the hot leg and cold leg temperature instrumentaion in each loop for natural circulation stabilization period and the ability to maintain the cooling mode.
3.
Core exit thermocouples will be monitored to assess core flow distribution.
El-1
D.
Acceptance Criteria 1.
Natural circulation nust occur in the pricary system, and primary temperatures and pressures are within the design limits of subsection 5.1.2.
2.
Delta T across the reactor core is less than the full power delta T.
3.
Decay heat removal capability is demonstrated by maintaining natural circulation conditions for a minimum of one hour.
L 4,
The piene een be mainseined in a stable eenditten en neeucal eiceuletten by estag ehe bessery and diesel power suppliest l
l El-2