ML20133M272
| 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 d b*
j FROM:
Janet Kennedy
SUBJECT:
LICENSEE'S RESTART CRITERIA FOR R0D DROP TEST PLANNED FOR JANUARY 18, 1997, SOUTH TEXAS PROJECT, UNIT 1 (TAC NO.
M95043) 1 I received the attached fax from the licensee. The licensee committed to provide this restart criteria in a public meeting on January 9,1997, regarding the licensee's response to Bulletin 96-01 (Ccatrol Rod Insertion i
Problems).
Docket No. 50-498 l
Attachment:
Fax from Licensee DISTRIB'JT::0N:
(
[DocketMi'e:__
PUBLIC (PDR)
WBeckner TAlexion JKennedy Doc. NAME:
STP95043 i
i DF D I,1 I
EA'*f88nH8a;6 NRC Fil.E CENTER PDR 220017
Houston Lighting & Pawar Comp:ny mo 4
OFFICEMEMORANDUM To:
T. H. Cloninger January 14,1997 From:
. A. Leam ST-HS-HS-035683
Subject:
Unit 1 Cycle 7 Incomplete RCCA Insertion Evaluation.
File No.: R26 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
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 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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