ML20133M272

Discusses Licensee Commitment to Provide Restart Criteria in Public Meeting on 970109 Re Licensee Response to NRC Bulletin 96-01, Control Rod Insertion Problems

ML20133M272
Person / Time
Site:	South Texas
Issue date:	01/15/1997
From:	Kennedy J NRC
To:	NRC (Affiliation Not Assigned)
References
IEB-96-001, IEB-96-1, TAC-M95043, NUDOCS 9701220324
Download: ML20133M272 (3)

Text

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January 15, 1997 MEMORANDUM T0: PD IV-1 File j FROM: Janet Kennedy d b*

SUBJECT:

LICENSEE'S RESTART CRITERIA FOR R0D DROP TEST PLANNED FOR JANUARY 18, 1997, SOUTH TEXAS PROJECT, UNIT 1 (TAC NO.

1 M95043)

I received the attached fax from the licensee. The licensee committed to provide this restart criteria in a public meeting on January 9,1997, l regarding the licensee's response to Bulletin 96-01 (Ccatrol Rod Insertion i Problems).  ;

1 l

Docket No. 50-498

Attachment:

Fax from Licensee DISTRIB'JT::0N:

( [DocketMi'e:__

PUBLIC (PDR)

WBeckner TAlexion JKennedy Doc. NAME: STP95043 i i l

l I

DF D I ,1 EA'*f88nH8a;6 PDR 220017 NRC Fil.E CENTER

4 mo Houston Lighting & Pawar Comp:ny OFFICEMEMORANDUM To: T. H. Cloninger January 14,1997 From: . A. Leam ST-HS-HS-035683 File No.: R26

Subject:

Unit 1 Cycle 7 Incomplete RCCA Insertion Evaluation .

Criteria for January 1997 Rod Drop Testing Please find the attached evaluation criteria to be used for evaluating incomplete rod insertion conditions during the upcoming Unit I rod drop test this month. Your approval authorizes me to apply these criteria for entry into Mode 2 per OPOP03 ZG 0004 (Reactor Startup).

i Attachment cc: J. F. Groth L. E. Martin G. L. Parkey J. R. Lovell RMS Approved: ,

M i . H. ni ger 1

1 1 20'd 8628 246 ETS ONIStG311603 OfN 40:0T 466T-ST-thf

,EO*p ,70101  :

Unit 1 Cycle 7 Incomplete RCCA Insertion Evaln!. tion Criteria for  :

January 1997 Rod Drop Testing i

Rod Drop Time (T*ehate.1 Specification 3.1.3.4)

Tech Spec Limit Administrative Limit Review Limit Immediate Restart g 2.8 sec 5 2.6 see s2.2see s2.0 sec Shutdown Margin (Technical Sg=dfication 3.1.1.1) Applicable for no-load TavR*

Safety Evaluation (SE) Limit Administrative Limit Review Limit immediate Restart Limit (15% Margin to SE (50% Margin to SE Limit) Limit)

Category 1 __

56 RCCAs s 11 steps 48 RCCAs s 6 steps 28 RCCAs s 6 steps 3 RCCAsg 6 steps and No incomplete rod insertionsin fuels 30K l Category 2 20 RCCAs 516 steps 17 RCCAss 12 steps 10 RCCAss 12 steps 3 RCCAss 6 steps and No incomplete rod insertions in fuels 30K Category 3 12 RCCAs s 22 steps 10 RCCAss 18 steps 6 RCCAss 18 steps 3 RCCAsg 6 steps and No incomplete rod insertions in fuels 30K l 4 'All Shutdown Margin limits assume the highest reactivity wonh rod is fully withdrawn. Refer to USQE 96-0025 for

)It further category details. Rod positions for the Adrainistrative, Review, and immeA;** Restart limits are based on DRrl indication and account for DRPI system uncertainty (* 4 steps).

l Actions Based on Incomplete RCCA Insertion Condition Criteria" Action l 1. Startup Unit l Case 1 ALL Immediate Researt Limits met. 2. No additional short term actions

3. Communicate results to the NRC E Immediate Restart Criteria b'QI met. 1. Startup Unit Case 2 but 2. Evaluate data within I week of startup to ALL Review Limits met determine any additior.al actions

3. Communicate results to tie NRC E Review Limits b'Q,I met, 1. Brief NRC of test results and any planned but actions prior to restart Case 3 ALL Administrative Limits met 2. Startup Unit L Evaluate data and revise the Safety Case 4 E Administrative Limits E met Evaluation or reconfigure reactor core

2. Inform NRC

• • Cnteria applies to Rod Drop Time limits and a single Category of Shutdown Margin limits.

l l

EO'd 8628 246 21S ONISN3')l 1 h!O3TJON 40:OI 466I-ST-NOf

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