ML18139A390

Confirms Agreement W/Nrc Re Review Criteria to Be Used to Evaluate Results of Rod Swap Tests & Administration of Physics Test Program Should Deviations Occur

ML18139A390
Person / Time
Site:	Surry, North Anna
Issue date:	06/26/1980
From:	Thomas W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Harold Denton, Varga S Office of Nuclear Reactor Regulation
References
569, NUDOCS 8007010430
Download: ML18139A390 (6)

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• :. VIRGINIA ELE.c-.rRi:c AN>> Pow_E:a CoMPANY RrcHMON_D, V:c:RGlN J:A. 23261 .

. Jwe. 26, 1980*:

Mr/ u: R. ~ntori;. Director* . . ._ *. '*Serial No *. 569 *

. Office of Nuclear* R~a.ctor Regulation.- 'FR/E.TI;.: ceb .. . . *.

... Attri: Mr.: Steven> A. Varga~ Chief : * . .

• Docket* No~.* 50~280--_

Operating Reactors Branch No.. l. 50-2~i

• . * . .

• D~v.Laion_ Of. Licens.iug

• _* .

• i . . _* *50.:..333 :-

. U~ S. Nuclear *Regu1atory_.Commissio'n*.: . *::: > ::**. so0::.339

• Washington;* D~ ~~ . 20555 '. . .. Licertse_.Nos~ DPR~32

.. . - DPR~37

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• SURRY AND- NORTH ANNA POWER _STATIONS *

-CONTROL~ ROD,. BANK REACTIVI~ WORTH TESTS. *

. . : .* _. . _My 'Jette~' to yo~,. :~ai:e(.?ff..ay' l~/ 19.~0:; (Serial No.* 384) ~ on 'this - <

.s_ubject transmi_tted the .vepco Topical.:"I<<~port VEP-l;P..D".'"'.36, ncontrol_,Rod, *. : .

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• React:i.vity*worl:h Determination* By-*the Rod Swap Techliique.'1: .: Since *tilat~* .* .

.:**._ date/:~-ie, hlive h_ad:several oppoz-tunit:ies to. disc~s th_e.:eontents .of ..that' ,_. *.. *

..*~port-with: ~en?,}j~rs}of ycn~r st~ff/ ... ~ a *.re,sult*. of '.thepe ~:J;Eicus_sfmia',* .. *..

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. we -~rould l;ke._ t.o :cqµ:firm: the. agreement. rea~hed :--with:. yo'ur. . staff~- regardi~g. -1 the -'rev:t.ew **criteria that::' will *be used to. evaluate the results of. rod,

. swap 't~sts' _and: the a~nistratioo*:of ~he pJiys~¢ffel:':.test prggram :should ,.'

deviations .occur.

' . . . .

• Thiei '.materta.1

'.  :. . . is **enclosed *-as: Attachment. I~*: .

• . .. -

• Additionally/ as .indicated to .your staff, w~ would like . to* . *.. *

• .. modify tlJ,~

• c*t,ntents .of *Table ~2 of* the report *. *.-This:* table outlines_ ...

. ' 'the startup phys:Lcs. testing program with 'rod swap and is e.nclosed as ..

'Attachment II *..

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. Mr~ -H. R. Denton Page 2.

Should there be any ad-ditional -ques'tion:3 on this subject:,

pl~c .:cnta,ct Dr~ n. J *. Lozito (804:...771-4$75).

W. N. Thomas

• Vice Pre:Hidant

-Fui:=1 Resources cc:,- }h:. Robert *A. Clark> Chief Opcrutinfi

. . Reactors

. . Brwich lio. 3

,!,tr. 13'. Joe. Youngblood, Chief

_- .Liceno:t:ng :J3ranch 1

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ATTACHMENT I ROD SWAP TEST RESULTS REVIEW CRITERIA

e Level I a) For *the reference bank 111 (%) 1* .:5_ 10%

b) For each test bank 111 (%) I < 1s%

or 111 (pcm) I* .:5_ 100 pcm whichever is greater Remedial Action:

Each discrepancy shall be reviewed by the Station Nuclear Safety and Operating Committee. Final resolution shall be based on the composite of plant startup data ~d an evaluation of the impact of. the discrepancy on the results of the analyses of the applicable events considered in the FSAR. Based on the results of this review, the Committee may decide to perform additional testing. This additional testing may be a repeat of the original test or the performance of other appropriate confirmatory tests.

Level II IM%) l * < 10%

Total Remedial Action:

The reactivity worth of control rod banks D thru A shall be measured (and also the remainder of the rod banks to N-1 if required) by successive insertion using the dilution/boration technique. This will be

<lone in order to validate the results of the calculationalmodels used to predict the control rod bank reactivity worths.

'~.As defined in Section 4 of VEP-FRD-36.

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ATTACHMENT II HOT ZERO POWER STARTUP PHYSICS TESTING PROGRAM WITH ROD SWAP

TABLE A.2 HOT ZERO POWER STARTUP PHYSICS TESTING PROGRAM WITH ROD SWAP Reactivity Computer Checkout Boron Endpoint - ARO

.Temperatur~ Coefficient - ARO M/D Flux Map - ARO Reference Bank Worth Boron Endpoint - Reference Bank In Temperature Coefficient - Reference Bank In M/D Flux Map - Rodded Control Rod Bank Worths (Control and Shutdown)