ML20095L022

Informs That During Startup Following Current Recirculation Pipe Replacement Outage,Util Will Invoke Special Test Exception Tech Spec 3.10.4 Re Operability of Recirculation Loop

ML20095L022
Person / Time
Site:	Hatch
Issue date:	08/23/1984
From:	Gucwa L GEORGIA POWER CO.
To:	Stolz J Office of Nuclear Reactor Regulation
References
NED-84-399, TAC-54169, TAC-54607, NUDOCS 8408300115
Download: ML20095L022 (2)

Text

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~ Coogia Power Company "M,.. 5.

t323 Pedmcnt Ave.nue JAttanta Georg;a 30308 2

Telephone 404 526-6526

Mailing Address:

Post Office Box 4545

- Atlanta, Georgia 30302 Georgia Power

' : L T. Gucwa.

A1 gust 23,19841 NED-84-399 the southern elecinc system Manager Nucteat Engineenng and Chief Nuc! ear Enginee-Director of M1 clear ReSctor Regulation Attention: 'Mr. John F. Stolz, Chief Operating Reactors Branch No. 4 Division of Licensing,_ '

.U. S. M1 clear Regulatory Conmission

~

. Washington, D. C.'

20535 s

- NRC DOCKErr 50-366 OPERATING' LICENSE NPF-5 ENIN I. HA'ICH NUCLEAR PIRff UNIT 2 USE OF SPECIAL TEST TIEHNICAL SPECIFICATIONS Gentlenen:

The following is provided for your information:

During the startup 'of Hatch Unit 2 followirg the c1rrent recira11ation pipe replacement outage, Georgia Power Conpany will invoke Special Test Exception Technical Specification 3.10.4, regarding operability of recirculation loops.

This action is necessary to verify transient reactor coastdown characteristics with the newly installed recirculation system piping.

In acx:ordance with Specification 3.10.4, the test will be performed as a PHYSICS TEST.

A PHYSIG TEST is defined as the nuasurement of fundamental n1 clear characteristics of the reactor core and related instnamentation.

'Ite test will verify transient power, total core flow and recirculation drive flow, heat flux, and water level characteristim cf the reactor using APRM

, (average power range monitor), jet ping, 5s otc.er related instrumentation readings.

Measurements will be obtaire fu a trip of both recira11ation pan, s and albsequent coastdovn.'

-N e.re of the test is to verify, following recirculation system pig sci.s a nt and recira11ation pump modifications, that the recira11ation ping trip time delay and reactor power and flow correspond to the values asalmed in the Hatch Unit 2 reload licensing thermal limit calculations.

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y (GeorgiaPoiver1 Director of N.1 clear Reactor Regalation Attention:' Mr. John F. Stolz, Chief Operating Reactors _ Branch No. 4

'. Alg.ist _23,.1%4

.page 2

'Ibe. two punp trip test will be performed as described in Chapter 14 of the Hatch Unit 2 ESAR (Startup Test Program).

The recira.11ation punps will be' tripped from conditions of 100 percent core flow and a maxinum power of 75 percent (test condition 3).

Very tn11y yours,

/ C Q_- w L. T. Gicwa REB /DLT xc:

J. T. Beckham, Jr.

H. C. Nix, Jr.

J. P. O'Reilly (NRC-RII)

Senior Resident Inspector, Plant Hatch

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