ML052800120
| ML052800120 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 10/03/2005 |
| From: | NRC/NRR/DLPM |
| To: | |
| Donohew J N, NRR/DLPM,415-1307 | |
| Shared Package | |
| ML052790626 | List: |
| References | |
| TAC MC6471, TAC MC6472 | |
| Download: ML052800120 (12) | |
Text
Definitions 1.1 1.1 Definitions Shutdown margin (SDM) a. All full length CEAs (shutdown and regulating)
(continued) are fully inserted except for the single CEA of highest reactivity worth, which is assumed to be fully withdrawn. However, with all CEAs verified fully inserted by two independent means, it is not necessary to account for a stuck CEA in the SDM calculation. With any CEAs not capable of being fully inserted, the reactivity worth of these CEAs must be accounted for in the determination of SDM, and I
- b. There is no change in part length CEA I position.
STAGGERED TEST BASIS A STAGGERED TEST BASIS shall consist of the testing of one of the systems, subsystems, channels, or other designated components during the interval specified by the Surveillance Frequency, so that all systems, subsystems, channels, or other designated components are tested during n Surveillance Frequency intervals, where n is the total number of systems, subsystems, channels, or other designated components in the associated function.
THERMAL POWER THERMAL POWER shall be the total reactor core heat transfer rate to the reactor coolant.
SAN ONOFRE--UNIT 2 1.1-6 Amendment No. 200
SDM3Tavg > 200OF 3.1.1 3.1 REACTIVITY CONTROL SYSTEMS 3.1.1 SHUTDOWN MARGIN (SDM)- Tavg > 2000F LCO 3.1.1 SDM shall be within the limits specified in the COLR. I APPLICABILITY: MODES 3 and 4.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. SDM not within limit. A.1 Initiate boration to 15 minutes restore SDM to within limit.
SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.1.1 Verify SDM is acceptable with increased 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> after allowance for the withdrawn worth of detection of inoperable CEAs. inoperable CEA(s) and every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter SR 3.1.1.2 Verify SDM to be within the limits 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> specified in the COLR. I SAN ONOFRE--UNIT 2 3.1-1 Amendment No. 200
SDM-Tavg s 200'F 3.1.2 3.1 REACTIVITY CONTROL SYSTEMS 3.1.2 SHUTDOWN MARGIN (SDM)-Tavq 5 200F LCO 3.1.2 SDM shall be within the limits specified in the COLR. I APPLICABILITY: MODE 5.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. SDM not within limit. A.1 Initiate boration to 15 minutes restore SDM to within limit.
SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.2.1 Verify SDM to be within the limits 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> specified in the COLR. I SAN ONOFRE--UNIT 2 3.1-2 Amendment No.200
Reactivity Balance 3.1.3 3.1 REACTIVITY CONTROL SYSTEMS 3.1.3 Reactivity Balance LCO 3.1.3 The core reactivity balance shall be within i H% Ak/k of predicted values.
APPLICABILITY: MODES 1 and 2.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Core reactivity A.1 Re-evaluate core 7 days I balance not within design and safety limit. analysis and determine that the reactor core is acceptable for continued operation.
AND A.2 Establish appropriate 7 days I operating restrictions and SRs.
B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time not met.
SAN ONOFRE--UNIT 2 3.1-3 Amendment No. 200
CEA Alignment 3.1.5 3.1 REACTIVITY CONTROL SYSTEMS 3.1.5 Control Element Assembly (CEA) Alignment LCO 3.1.5 All full length CEAs shall be OPERABLE and all full and part length CEAs shall be aligned to within 7 inches of all other CEAs in its group.
APPLICABILITY: MODES 1 and 2.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One regulating CEA A.1 Initiate THERMAL 15 minutes trippable and POWER reduction in misaligned from its accordance with COLR group by > 7 inches. requirements.
AND A.2.1 Restore the 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> misaligned CEA(s) to within 7 inches of its group.
OR (continued)
SAN ONOFRE--UNIT 2 3.1-7 Amendment No.200
CEA Alignment 3.1.5 ACTIONS (continued)
CONDITION REQUIRED ACTION COMPLETION TIME A. (continued) A.2.2 Align the remainder 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> I of the CEAs in the group to within 7 inches of the misaligned CEA(s) while maintaining the insertion limit of LCO 3.1.7, "Regulating Control Element Assembly (CEA) Insertion Limits."
B. One shutdown CEA B.1 Initiate THERMAL 15 minutes trippable and POWER reduction in misaligned from its accordance with COLR group by > 7 inches. requirements.
AND B.2 Restore the 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> misaligned CEA(s) to within 7 inches of its group.
(continued)
SAN ONOFRE--UNIT 2 3.1-8 Amendment No. 200
Shutdown CEA Insertion Limits 3.1.6 3.1 REACTIVITY CONTROL SYSTEMS 3.1.6 Shutdown Control Element Assembly (CEA) Insertion Limits LCO 3.1.6 All shutdown CEAs shall be withdrawn to 2 145 inches.
APPLICABILITY: MODE 1, MODE 2 with any regulating CEA not fully inserted.
NOTE--------_-_-_-_-_-__-_-_-_
This LCO is not applicable while performing SR 3.1.5.3.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One or more shutdown CEA(s) not within A.1 Restore shutdown CEA(s) to within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> I limit. limit.
B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time not met.
SAN ONOFRE--UNIT 2 3.1-12 Amendment No. 200
Regulating CEA Insertion Limits 3.1.7 3.1 REACTIVITY CONTROL SYSTEMS 3.1.7 Regulating CEA Insertion Limits LCO 3.1.7 The power dependent insertion limit (PDIL) alarm circuit shall be OPERABLE, and
- a. With the Core Operating Limit Supervisory System (COLSS) in service, the regulating CEA groups shall be limited to the withdrawal sequence, insertion limits, and associated time restraints specified in the COLR.
- b. With COLSS out of service, the regulating CEA groups shall be limited to the short term steady state insertion limit and associated time restraints specified in the COLR.
APPLICABILITY: MODES 1 and 2.
-his----is-notapplicable-whiNOTE
-conducting -----------
This LCO is not applicable while conducting SR 3.1.5.3.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Regulating CEA groups A.1 Restore regulating 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> I inserted beyond the CEA groups to within transient insertion limits.
limit with COLSS in service. OR (continued)
SAN ONOFRE--UNIT 2 3.1-14 Amendment No. 200
Regulating CEA Insertion Limits 3.1.7 ACTIONS (continued)
CONDITION REQUIRED ACTION COMPLETION TIME A. (continued) A.2 Reduce THERMAL POWER 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> I to less than or equal to the fraction of RTP allowed by the CEA group position and insertion limits specified in the COLR.
B. Regulating CEA groups B.1 Verify short term 15 minutes inserted between the steady state long term steady state insertion limits are insertion limit and not exceeded.
the transient insertion limit for OR
> 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> per 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> interval with COLSS in B.2 Restrict increases in 15 minutes service. THERMAL POWER to s 5% RTP per hour.
C. Regulating CEA groups C.1 Restore regulating 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> inserted between the CEA groups to within long term steady state limits.
insertion limit and the transient insertion limit for intervals
> 5 effective full power days (EFPD) per 30 EFPD interval or
> 14 EFPD per 365 EFPD interval with COLSS in service.
(continued)
SAN ONOFRE--UNIT 2 3.1-15 Amendment No. 200
Regulating CEA Insertion Limits 3.1.7 ACTIONS (continued)
CONDITION REQUIRED ACTION COMPLETION TIME D. Regulating CEA groups D.1 Restore regulating 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> I inserted beyond the CEA groups to within short term steady limits.
state insertion limit with COLSS out of OR service.
D.2 Reduce THERMAL POWER 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> to less than or equal to the fraction of RTP allowed by CEA group position and short term steady state insertion limit specified in the COLR.
E. PDIL alarm circuit E.1 Perform SR 3.1.7.1. 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> inoperable.
AND Once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> thereafter F. 'Required Actions and F.1 Be in MODE 3. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Times not met.
SAN ONOFRE--UNIT 2 3.1-16 Amendment No.200
DNBR 3.2.4 3.2 POWER DISTRIBUTION LIMITS 3.2.4 Departure From Nucleate Boiling Ratio (DNBR)
LCO 3.2.4 The DNBR shall be maintained by one of the following methods:
- a. Maintaining Core Operating Limit Supervisory System (COLSS) calculated core power less than or equal to COLSS calculated core power operating limit based on DNBR (when COLSS is in service, and either one or both control element assembly calculators (CEACs) are OPERABLE);
- b. Maintaining COLSS calculated core power less than or equal to COLSS calculated core power operating limit based on DNBR decreased by the allowance specified in the COLR (when COLSS is in service and neither CEAC is OPERABLE);
I
- c. Operating within limits as specified in the COLR using any operable core protection calculator (CPC) channel (when COLSS is out of service and either one or both CEACs are OPERABLE); or
- d. Operating within limits as specified in the COLR using any operable CPC channel (when COLSS is out of service and neither CEAC is OPERABLE).
APPLICABILITY: MODE 1 with THERMAL POWER > 20% RTP.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. With COLSS in service A.1 Restore the DNBR to 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and the COLSS within limit.
calculated core power exceeding the COLSS calculated core power operating limit.
(continued)
SAN ONOFRE--UNIT 2 3.2-9 Amendment No.200
Reporting Requirements 5.7 5.7 Reporting Requirements (continued) 5.7.1.4 (Deleted) 5.7.1.5 CORE OPERATING LIMITS REPORT (COLR)
- a. Core operating limits shall be established prior to each reload cycle, or prior to any remaining portion of a reload cycle, and shall be documented in the COLR for the following:
- 1. Specification 3.1.1, "SHUTDOWN MARGIN (SDM) - T aVg
>200 0F;"
- 2. Specification 3.1.2, "SHUTDOWN MARGIN (SDM) - Tavg
<200F;"
- 3. Specification 3.1.4, "Moderator Temperature I Coefficient;"
- 4. Specification 3.1.5, "Control Element Assembly (CEA) I Alignment;"
- 5. Specification 3.1.7, "Regulating CEA Insertion I Limits;"
- 6. Specification 3.1.8, "Part Length Control Element I Assembly Insertion Limits;"
- 7. Specification 3.2.1, "Linear Heat Rate;" I
- 8. Specification 3.2.4, "Departure From Nucleate Boiling I Ratio;"
- 9. Specification 3.2.5, "Axial Shape Index;" I
- 10. Specification 3.9.1, "Boron Concentration." I
- b. The analytical methods used to determine the core operating limits shall be those previously reviewed and approved by the NRC, specifically those described in the following documents:
(continued)
SAN ONOFRE--UNIT 2 5.0-26 Amendment No. 200