RS-25-110, Constellation Energy Generation, Llc., Application to Revise Technical Specifications to Adopt TSTF-599, Revision 1, Eliminate Periodic Surveillance Test of Simultaneous Start of Redundant Diesel Generators
| ML25218A063 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Peach Bottom, Nine Mile Point, Byron, Braidwood, Limerick, Clinton, Quad Cities, LaSalle  |
| Issue date: | 08/05/2025 |
| From: | Steinman R Constellation Energy Generation |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| RS-25-110 | |
| Download: ML25218A063 (1) | |
Text
4300 Winfield Rd Warrenville, IL 60555 RS-25-110 10 CFR 50.90 August 5, 2025 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Braidwood Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-72 and NPF-77 NRC Docket Nos. STN 50-456 and STN 50-457 Byron Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-37 and NPF-66 NRC Docket Nos. STN 50-454 and STN 50-455 Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 NRC Docket No. 50-461 Dresden Nuclear Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-19 and DPR-25 NRC Docket Nos. 50-237 and 50-249 LaSalle County Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-11 and NPF-18 NRC Docket Nos. 50-373 and 50-374 Limerick Generating Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50- 353 Nine Mile Point Nuclear Station, Unit 2 Renewed Facility Operating License No. NPF-69 NRC Docket No. 50-410 Peach Bottom Atomic Power Station, Units 2 and 3 Subsequent Renewed Facility Operating License Nos. DPR-44 and DPR-56 NRC Docket Nos. 50-277 and 50-278 Quad Cities Nuclear Power Station, Units 1 and 2 Renewed Facility Operating License Nos. DPR-29 and DPR-30 NRC Docket Nos. 50-254 and 50-265
August 5, 2025 U.S. Nuclear Regulatory Commission Page 2
Subject:
Application to Revise Technical Specifications to Adopt TSTF-599, Revision 1, "Eliminate Periodic Surveillance Test of Simultaneous Start of Redundant Diesel Generators"
Reference:
TSTF-599, Revision 1, "Eliminate Periodic Surveillance Test of Simultaneous Start of Redundant Diesel Generators," dated May 6, 2025 (ML25119A287)
In accordance with 10 CFR 50.90, "Application for amendment of license, construction permit, or early site permit," Constellation Energy Generation, LLC (CEG) requests an amendment to Facility Operating License Nos. NPF-72 and NPF-77 for Braidwood Station (BWD),
Units 1 and 2; Nos. NPF-37 and NPF-66 for Byron Station (BYR), Units 1 and 2; No. NPF-62 for Clinton Power Station (CPS), Unit 1; Nos. DPR-19 and DPR-25 for Dresden Nuclear Power Station (DNPS), Units 2 and 3; Nos. NPF-11 and NPF-18 for LaSalle County Station (LSCS),
Units 1 and 2; Nos. NPF-39 and NPF-85 for Limerick Generating Station (LGS), Units 1 and 2; No. NPF-69 for Nine Mile Point Nuclear Station, Unit 2 (NMP2); Nos. DPR-44 and DPR-56 for Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3; and Nos. DPR-29 and DPR-30 for Quad Cities Nuclear Power Station (QCNPS), Units 1 and 2; respectively. Specifically, CEG requests adoption of TSTF-599, Revision 1, "Eliminate Periodic Surveillance Test of Simultaneous Start of Redundant Diesel Generators," an approved change to the Standard Technical Specifications (STS), into each listed site's Technical Specifications (TS). TSTF-599 removes a surveillance requirement (SR) in STS 3.8.1 "AC Sources-Operating" to verify that diesel generators (DGs) achieve a specific frequency and voltage within a specific time period when started simultaneously.
provides an evaluation of proposed changes. Attachment 2 provides the existing TS pages for each site marked-up to show the proposed TS change. Attachment 3 provides the corresponding marked-up TS Bases pages for each site and is provided for information only.
The proposed change has been reviewed by each listed site's Plant Operations Review Committee, respectively, in accordance with the requirements of the CEG Quality Assurance Program.
CEG requests that the amendment be reviewed under the Consolidated Line Item Improvement Process (CLIIP). Approval of the proposed license amendment is requested within 6 months of the NRC acceptance review. Once approved, the amendment shall be implemented within 60 days.
In accordance with 10 CFR 50.91, "Notice for public comment; State consultation,"
paragraph (b), a copy of this application, with attachments, is being provided to the designated State Officials.
There are no regulatory commitments contained in this letter. Should you have any questions, please contact Ms. Danii Gantt at (779) 231-6227.
August 5, 2025 U.S. Nuclear Regulatory Commission Page 3 I declare under penalty of perjury that the foregoing is true and correct. This statement was executed on the 5th day of August 2025.
Respectfully, Rebecca L. Steinman Sr. Manager - Licensing Constellation Energy Generation, LLC Attachments:
- 1. Evaluation of Proposed Changes
- 2. Proposed Technical Specifications Changes (Mark-up)
- 3. Proposed Technical Specifications Bases Changes (Mark-up, Information Only) cc:
NRC Region I, Regional Administrator NRC Region Ill, Regional Administrator NRC Project Manager, NRR - Braidwood Station NRC Project Manager, NRR - Byron Station NRC Project Manager, NRR - Clinton Power Station NRC Project Manager, NRR - Dresden Nuclear Power Station NRC Project Manager, NRR - LaSalle County Station NRC Project Manager, NRR - Limerick Generating Station NRC Project Manager, NRR - Nine Mile Point Station NRC Project Manager, NRR - Peach Bottom Atomic Power Station NRC Project Manager, NRR - Quad Cities Nuclear Power Station NRC Senior Resident Inspector - Braidwood Station NRC Senior Resident Inspector - Byron Station NRC Senior Resident Inspector - Clinton Power Station NRC Senior Resident Inspector - Dresden Nuclear Power Station NRC Senior Resident Inspector - LaSalle County Station NRC Senior Resident Inspector - Limerick Generating Station NRC Senior Resident Inspector - Nine Mile Point Station NRC Senior Resident Inspector - Peach Bottom Atomic Power Station NRC Senior Resident Inspector - Quad Cities Nuclear Power Station Illinois Emergency Management Agency - Division of Nuclear Safety Director, Bureau of Radiation Protection - Pennsylvania Department
of Environmental Protection A. L. Petersen, NYSERDA Bridget Frymire, NYSPSC Andrew Kauk, NYSPSC Steinman, Rebecca Lee Digitally signed by Steinman, Rebecca Lee Date: 2025.08.05 15:23:06 -05'00' Evaluation of Proposed Changes
Subject:
Application to Revise Technical Specifications to Adopt TSTF-599, Revision 1, "Eliminate Periodic Surveillance Test of Simultaneous Start of Redundant Diesel Generators" 1.0
SUMMARY
DESCRIPTION 2.0 DETAILED DESCRIPTION 2.1 Applicability 2.2 Variations 2.3 Detailed Description of Change
3.0 TECHNICAL EVALUATION
4.0 REGULATORY EVALUATION
4.1 Applicable Regulatory Requirements / Criteria 4.2 No Significant Hazards Consideration 4.3 Conclusion
5.0 ENVIRONMENTAL CONSIDERATION
6.0 REFERENCES
Evaluation of Proposed Changes Page 1 of 5 1.0
SUMMARY
DESCRIPTION In accordance with 10 CFR 50.90, "Application for amendment of license, construction permit, or early site permit," Constellation Energy Generation, LLC (CEG) requests an amendment to Facility Operating License Nos. NPF-72 and NPF-77 for Braidwood Station (BWD),
Units 1 and 2; Nos. NPF-37 and NPF-66 for Byron Station (BYR), Units 1 and 2; No. NPF-62 for Clinton Power Station (CPS), Unit 1; Nos. DPR-19 and DPR-25 for Dresden Nuclear Power Station (DNPS), Units 2 and 3; Nos. NPF-11 and NPF-18 for LaSalle County Station (LSCS), Units 1 and 2; Nos. NPF-39 and NPF-85 for Limerick Generating Station (LGS),
Units 1 and 2; No. NPF-69 for Nine Mile Point Nuclear Station, Unit 2 (NMP2); Nos. DPR-44 and DPR-56 for Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3; and Nos. DPR-29 and DPR-30 for Quad Cities Nuclear Power Station (QCNPS), Units 1 and 2; respectively. Specifically, CEG requests adoption of TSTF-599, Revision 1, "Eliminate Periodic Surveillance Test of Simultaneous Start of Redundant Diesel Generators,"
(see Reference) an approved change to the Standard Technical Specifications (STS), into each listed site's Technical Specifications (TS). TSTF-599 removes a surveillance requirement (SR) in STS 3.8.1 "AC Sources-Operating" to verify that diesel generators (DGs) achieve a specific frequency and voltage within a specific time period when started simultaneously.
2.0 DETAILED DESCRIPTION 2.1 Applicability CEG has reviewed the safety evaluation for TSTF-599 provided to the Technical Specifications Task Force in a letter dated May 5, 2025. This review included the NRC staffs evaluation, as well as the information provided in TSTF-599. CEG has concluded that the justifications presented in TSTF-599 and the safety evaluation prepared by the NRC staff are applicable to BWD Units 1 and 2; BYR Units 1 and 2; CPS, Unit 1; DNPS Units 2 and 3; LSCS, Units 1 and 2; LGS, Units 1 and 2; NMP2, Unit 2; PBAPS, Units 2 and 3; and QCNPS Units 1 and 2 and justify this amendment for the incorporation of the changes to the respective plants TS.
2.2 Variations CEG is proposing the following variations from the TS changes described in TSTF-599 or the applicable parts of the NRC staffs safety evaluation.
-LGS Units 1 and 2 does not maintain the same numbering schematic as referenced in the STS but will delete SR 4.8.1.1.2.f from the LGS TS which is equivalent to STS SR 3.8.1.20. This difference is administrative and does not affect the applicability of TSTF-599 to the LGS TS.
-LGS Units 1 and 2 deleted *This test shall be conducted in accordance with the manufacturers recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading and shutdown recommendations. at the bottom of page 3/4 8-7 because it referenced deleted SR 4.8.1.1.2.f.
-LGS Units 1 and 2 deleted 4.8.1.1.2.f on page 3/4 8-9 because this SR was deleted.
-NMP2 will delete SR 3.8.1.18 from the NMP2 TS which is equivalent to STS SR 3.8.1.20. This difference is administrative and does not affect the applicability of TSTF-599 to the NMP2 TS.
Evaluation of Proposed Changes Page 2 of 5
-DNPS Units 2 and 3, LSCS Units 1 and 2, and QCNPS Units 1 and 2 have an administrative change to the NOTES prior to the start of the SR section which changes the SR range from 3.8.1.1 through 3.8.1.20 to 3.8.1.1 through 3.8.1.19 because SR 3.8.1.20 was deleted from TS.
-PBAPS Units 2 and 3 has an administrative change to the NOTE prior to the start of the SR section which changes the SR range from 3.8.1.1 through 3.8.1.20 to 3.8.1.1 through 3.8.1.19 because SR 3.8.1.20 was deleted from TS.
-PBAPS Units 2 and 3 deleted and SR 3.8.1.20 from SR 3.8.2.2 because SR 3.8.1.20 was deleted from TS.
- DNPS Units 2 and 3, LSCS Units 1 and 2, PBAPS Units 2 and 3, and QCNPS Units 1 and 2 deleted SR 3.8.1.19 and renumbered SR 3.8.1.20 to 3.8.1.19 in SR 3.8.1.21 because SR 3.8.1.20 was deleted from TS.
2.3 Detailed Description of Change TSTF-599 removes the SR in STS 3.8.1 "AC Sources-Operating" to verify that DGs achieve a specific frequency and voltage within a specific time period when started simultaneously.
contains a marked-up version of the TS for each site included in this license amendment request (LAR) showing the proposed change. Attachment 3 provides the marked-up TS Bases pages for each site. Supporting changes to the TS Bases will be made in accordance with each sites respective TS Bases Control Program. The TS Bases mark-up pages are being submitted for information only.
3.0 TECHNICAL EVALUATION
As described in TSTF-599, Revision 1, the proposed change to remove the SR in STS 3.8.1 "AC Sources-Operating" to verify that DGs achieve a specific frequency and voltage within a specific time period when started simultaneously is justified because of the following:
The SR proposed for deletion is not required to verify that the necessary quality of systems or components is maintained, that facility operation will be within the safety limits, and that the limiting conditions for operation (LCOs) will be met.
A review of the performance history of the SR proposed for deletion does not identify any new failures to maintain DG independence.
A review of Licensee Event Reports (LERs) from January 1, 2000 through August 29, 2021 related to the starting of redundant DGs indicated all redundant DGs started and met their safety function as required.
A search of the Institute of Nuclear Power Operations (INPO) Consolidated Event System Database (ICES) for the period of 2010 through 2019 did not Evaluation of Proposed Changes Page 3 of 5 identify any condition that would have caused an event that would have been detected by the SR proposed for deletion.
It is unlikely that the performance of the SR proposed for deletion would identify that the redundant DGs are inoperable due to a common cause failure mechanism and in reviewing LERs from 2005 through 2010 there were no instances in which the redundant DG was found to be inoperable due to a common cause failure.
STS SR 3.8.1.7 also requires testing of each DG and verification that it reaches the required frequency and voltage within the specified time period and there are no unique components that are tested during the performance of the SR proposed for deletion.
STS SR 3.8.1.20 does not duplicate the plant response to an actual event and the redundant DGs are started manually when STS SR 3.8.1.20 is performed. DG starts due to a loss of offsite power signal or due to an Engineered Safety Function (ESF) actuation signal are tested by STS SR 3.8.1.11 and SR 3.8.1.12 and there are no unique aspects of the DGs that warrant the additional testing for independence. Other mitigation systems such as Emergency Core Cooling System (ECCS), containment spray and cooling, control room environmental control, electrical systems or instrumentation do not require additional testing for independence.
Performance of STS SR 3.8.1.20 may reduce the availability of the DGs if the plant is required to render the DGs inoperable during the test preparation and recovery. If an accident were to occur during the performance of STS SR 3.8.1.20, the plant may be unable to meet the assumptions of the accident analyses. The safety benefit of performing STS SR 3.8.1.20 does not outweigh the increased safety risk to the plant. STS SR 3.8.2.1 states that STS SR 3.8.1.20 is not applicable and the removal of STS SR 3.8.1.20 has no effect on STS SR 3.8.2.1. The changes being made to the technical specifications in this LAR have no impact to any assumptions or inputs to the applicable sites and their safety analyses. All current safety analyses remain valid and unchanged with the removal of STS SR 3.8.1.20; therefore, these changes are acceptable.
4.0 REGULATORY EVALUATION
4.1 Applicable Regulatory Requirements/Criteria The regulatory requirements associated with this amendment application include the following:
10 CFR 50.36, "Technical specifications," details the content and information that must be included in a station's Technical Specifications (TS). In accordance with 10 CFR 50.36, TSs are required to include (1) safety limits, limiting safety system settings, and limiting control settings; (2) limiting conditions for operation; (3) surveillance requirements; (4) design features; and (5) administrative controls.
CEG has determined that the proposed change of removing SR 3.8.1.20 from BWD Units 1 and 2; BYR Units 1 and 2; CPS, Unit 1; DNPS Units 2 and 3; LSCS, Units 1 and 2; PBAPS, Units 2 and 3; and QCNPS Units 1 and 2 ; SR 3.8.1.18 from NMP2 ; and SR 4.8.1.1.2.f from LGS Units 1 and 2 is consistent with the regulatory requirements and criteria described above because of the remaining SRs associated with STS LCO 3.8.1 that sufficiently test DG performance.
Evaluation of Proposed Changes Page 4 of 5 4.2 No Significant Hazards Consideration CEG requests adoption of TSTF-599, "Eliminate Periodic Surveillance Test of Simultaneous Start of Redundant Diesel Generators," which is an approved change to the STS, into the BWD Units 1 and 2; BYR Units 1 and 2; CPS, Unit 1; DNPS Units 2 and 3; LSCS, Units 1 and 2; LGS, Units 1 and 2; NMP2, Unit 2; PBAPS, Units 2 and 3; and QCNPS Units 1 and 2 TS. The proposed change eliminates the periodic SR to verify that all required DGs achieve rated frequency and voltage within the specified time period when started simultaneously.
CEG has evaluated whether a significant hazards consideration is involved with the proposed generic change by focusing on the three standards set forth in 10 CFR 50.92, "Issuance of amendment," as discussed below:
- 1. Does the proposed change involve a significant increase in the probability or consequences of an accident previously evaluated?
Response: No.
The proposed change eliminates a periodic Surveillance test which verifies that all required DGs achieve rated frequency and voltage within the specified time period when started simultaneously. Simultaneous start of the redundant DGs is not an initiator of any accident previously evaluated. The fast start of the DGs is verified by other Surveillance tests and historical performance of the simultaneous test has always been successful.
As a result, the DG reliability and the attendant effect on the consequences of any accident previously evaluated are not affected.
Therefore, the proposed change does not involve a significant increase in the probability or consequences of an accident previously evaluated.
- 2. Does the proposed change create the possibility of a new or different kind of accident from any accident previously evaluated?
Response: No.
The proposed change eliminates a periodic Surveillance test which verifies that all required DGs achieve rated frequency and voltage within the specified time period when started simultaneously. No new or different accidents result from the proposed change.
The changes do not involve a physical alteration of the plant (i.e., no new or different type of equipment will be installed) or a change in the methods governing normal plant operation. In addition, the changes do not impose any new or different requirements.
The changes do not alter assumptions made in the safety analysis. The proposed changes are consistent with the safety analysis assumptions and current plant operating practice. Therefore, the proposed change does not create the possibility of a new or different kind of accident from any accident previously evaluated.
Evaluation of Proposed Changes Page 5 of 5
- 3. Does the proposed change involve a significant reduction in a margin of safety?
Response: No.
The proposed change eliminates a periodic Surveillance test which verifies that all required DGs achieve rated frequency and voltage within the specified time period when started simultaneously. The proposed change does not adversely affect existing plant safety margins, or the reliability of the equipment assumed to operate in the safety analysis. As such, there are no changes being made to safety analysis assumptions, safety limits or limiting safety system settings that would adversely affect plant safety as a result of the proposed change. Therefore, the proposed change does not involve a significant reduction in a margin of safety.
CEG concludes that the proposed change presents no significant hazards consideration under the standards set forth in 10 CFR 50.92(c), and, accordingly, a finding of "no significant hazards consideration" is justified.
4.3 Conclusion Based on the considerations discussed above, (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) such activities will be conducted in compliance with the Commissions regulations, and (3) the approval of the proposed changes will not be inimical to the common defense and security or to the health and safety of the public.
5.0 Environmental Consideration A CEG review has determined that the proposed change would alter a requirement with respect to installation or use of a facility component located within the restricted area, as defined in 10 CFR 20, or would change an inspection or surveillance requirement. However, the proposed change does not involve (i) a significant hazards consideration, (ii) a significant change in the types or significant increase in the amounts of any effluent that may be released offsite, or (iii) a significant increase in individual or cumulative occupational radiation exposure.
Accordingly, the proposed change meets the eligibility criterion for categorical exclusion set forth in 10 CFR 51.22(c)(9). In accordance with 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the proposed change.
6.0 REFERENCE TSTF-599, Revision 1, "Eliminate Periodic Surveillance Test of Simultaneous Start of Redundant Diesel Generators," dated May 6, 2025 (ML25119A287)
ATTACHMENT 2a Proposed Technical Specifications Changes (Mark-up)
Braidwood Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-72 and NPF-77 3.8.1-13
ATTACHMENT 2b Proposed Technical Specifications Changes (Mark-up)
Byron Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-37 and NPF-66 3.8.1-13
ATTACHMENT 2c Proposed Technical Specifications Changes (Mark-up)
Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 3.8-15
AC Sources-Operating 3.8.1 CLINTON 3.8-15 Amendment No. 199 SURVEILLANCE REQUIREMENTS (continued)
SURVEILLANCE FREQUENCY SR 3.8.1.20
NOTE--------------------
All DG starts may be preceded by an engine prelube period.
Verify, when started simultaneously from standby condition, each DG achieves:
a.
In 12 seconds, voltage 4084 V and frequency 58.8 Hz; and b.
Steady state voltage 4084 V and 4300 V and frequency 58.8 Hz and 61.2 Hz.
In accordance with the Surveillance Frequency Control Program This page left intentionally blank.
ATTACHMENT 2d Proposed Technical Specifications Changes (Mark-up)
Dresden Nuclear Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-19 and DPR-25 3.8.1-6 3.8.1-15
AC SourcesOperating 3.8.1 Dresden 2 and 3 3.8.1-15 Amendment No. 237/230 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.1.20
NOTE--------------------
All DG starts may be preceded by an engine prelube period.
Verify, when started simultaneously from standby condition, each DG achieves, in d 13 seconds, voltage t 3952 V and frequency t 58.8 Hz.
In accordance with the Surveillance Frequency Control Program SR 3.8.1.21
NOTE--------------------
When the opposite unit is in MODE 4 or 5, or moving recently irradiated fuel assemblies in secondary containment, the following opposite unit SRs are not required to be performed: SR 3.8.1.3, SR 3.8.1.10 through SR 3.8.1.12, and SR 3.8.1.14 through SR 3.8.1.17.
For required opposite unit AC electrical power sources, the SRs of the opposite unit's Specification 3.8.1, except SR 3.8.1.9, SR 3.8.1.13, SR 3.8.1.18, SR 3.8.1.19, and SR 3.8.1.20, are applicable.
In accordance with applicable SRs delete 19 Deleted.
ATTACHMENT 2e Proposed Technical Specifications Changes (Mark-up)
LaSalle County Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-11 and NPF-18 3.8.1-8 3.8.1-20
AC SourcesOperating 3.8.1 LaSalle 1 and 2 3.8.1-20 Amendment No. 251/237 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.1.20
NOTE--------------------
All DG starts may be preceded by an engine prelube period.
Verify, when started simultaneously from standby condition, each required DG achieves, in d 13 seconds, voltage t 4010 V and frequency t 58.8 Hz.
In accordance with the Surveillance Frequency Control Program SR 3.8.1.21
NOTE--------------------
When the opposite unit is in MODE 4 or 5, or moving irradiated fuel assemblies in secondary containment, the following opposite unit SRs are not required to be performed: SR 3.8.1.3, SR 3.8.1.9 through SR 3.8.1.11, SR 3.8.1.14 through SR 3.8.1.16.
For required opposite unit DG, the SRs of the opposite unit's Specification 3.8.1, except SR 3.8.1.12, SR 3.8.1.13, SR 3.8.1.17, SR 3.8.1.18, SR 3.8.1.19, and SR 3.8.1.20, are applicable.
In accordance with applicable SRs DELETED 19 Deleted.
ATTACHMENT 2f Proposed Technical Specifications Changes (Mark-up)
Limerick Generating Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-39 and NPF-85 3/4 8-7 Unit 1 3/4 8-9 Unit 1 3/4 8-7 Unit 2 3/4 8-9 Unit 2
ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)
- 13.
Verifying that the following diesel generator lockout features prevent diesel generator starting only when required:
a)
Control Room Switch In Pull-To-Lock (With Local/Remote Switch in Remote) b)
Local/Remote Switch in Local c)
Emergency Stop
- f.
In accordance with the Surveillance Frequency Control Program or after any modifications which could affect diesel generator interdependence by starting* all four diesel generators simultaneously, during shutdown, and verifying that all four diesel generators accelerate to at least 882 rpm in less than or equal to 10 seconds.
- g.
In accordance with the Surveillance Frequency Control Program by:
- 1.
Draining each fuel oil storage tank, removing the accumulated sediment and cleaning the tank using a sodium hypochlorite or equivalent solution, and
- 2.
Performing a pressure test of those portions of the diesel fuel oil system designed to Section III, subsection ND of the ASME Code in accordance with ASME Code Section XI Article IWD-5000.
- This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading and shutdown recommendations.
LIMERICK - UNIT 1 3/4 8-7 Amendment No. 32, 71, 186 delete Deleted Deleted.
ELECTRICAL POWER SYSTEMS A.C. SOURCES - SHUTDOWN LIMITING CONDITION FOR OPERATION 3.8.1.2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:
- a.
One circuit between the offsite transmission network and the onsite Class 1E distribution system, and
- b.
Two diesel generators each with:
- 1.
A day fuel tank containing a minimum of 250 gallons of fuel.
- 2.
A fuel storage system containing a minimum of 33,500 gallons of fuel.
- 3.
A fuel transfer pump.
APPLICABILITY: OPERATIONAL CONDITIONS 4, 5, and *.
ACTION:
a.
With less than the above required A.C. electrical power sources OPERABLE, suspend CORE ALTERATIONS, handling of irradiated fuel in the secondary containment, and crane operations over the spent fuel storage pool when fuel assemblies are stored therein. In addition, when in OPERATIONAL CONDITION 5 with the water level less than 22 feet above the reactor pressure vessel flange, immediately initiate corrective action to restore the required power sources to OPERABLE status as soon as practical.
- b.
The provisions of Specification 3.0.3 are not applicable.
SURVEILLANCE REQUIREMENTS 4.8.1.2 At least the above required A.C. electrical power sources shall be demonstrated OPERABLE per Surveillance Requirements 4.8.1.1.1 and 4.8.1.1.2, except for 4.8.1.1.1.b, 4.8.1.1.2.e.4, 4.8.1.1.2.e.5, 4.8.1.1.2.e.6, 4.8.1.1.2.e.7, 4.8.1.1.2.e.8.b, 4.8.1.1.2.e.11, 4.8.1.1.2.e.12, 4.8.1.1.2.f, and 4.8.1.1.2.h.
- When handling irradiated fuel in the secondary containment.
LIMERICK - UNIT 1 3/4 8-9 Amendment No. 32,192,193,227,264 delete
ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 13.
Verifying that the following diesel generator lockout features prevent diesel generator starting only when required:
a)
Control Room Switch In Pull-To-Lock (With Local/Remote Switch in Remote) b)
Local/Remote Switch in Local.
c)
Emergency Stop f.
In accordance with the Surveillance Frequency Control Program or after any modifications which could affect diesel generator interdependence by starting* all four diesel generators simultaneously, during shutdown, and verifying that all four diesel generators accelerate to at least 882 rpm in less than or equal to 10 seconds.
g.
In accordance with the Surveillance Frequency Control Program by:
1.
Draining each fuel oil storage tank, removing the accumulated sediment and cleaning the tank using a sodium hypochlorite or equivalent solution, and 2.
Performing a pressure test of those portions of the diesel fuel oil system designed to Section III, subsection ND of the ASME Code in accordance with ASME Code Section XI Article IWD-5000.
- This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading and shutdown recommendations.
LIMERICK - UNIT 2 3/4 8-7 Amendment No. 34, 147 delete Deleted.
ELECTRICAL POWER SYSTEMS A.C. SOURCES - SHUTDOWN LIMITING CONDITION FOR OPERATION 3.8.1.2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:
- a.
One circuit between the offsite transmission network and the onsite Class 1E distribution system, and
- b.
Two diesel generators each with:
- 1.
A day fuel tank containing a minimum of 250 gallons of fuel.
- 2.
A fuel storage system containing a minimum of 33,500 gallons of fuel.
- 3.
A fuel transfer pump.
APPLICABILITY: OPERATIONAL CONDITIONS 4, 5, and *.
ACTION:
- a.
With less than the above required A.C. electrical power sources OPERABLE, suspend CORE ALTERATIONS, handling of irradiated fuel in the secondary containment, and crane operations over the spent fuel storage pool when fuel assemblies are stored therein. In addition, when in OPERATIONAL CONDITION 5 with the water level less than 22 feet above the reactor pressure vessel flange, immediately initiate corrective action to restore the required power sources to OPERABLE status as soon as practical.
- b.
The provisions of Specification 3.0.3 are not applicable.
SURVEILLANCE REQUIREMENTS 4.8.1.2 At least the above required A.C. electrical power sources shall be demonstrated OPERABLE per Surveillance Requirements 4.8.1.1.1 and 4.8.1.1.2, except for 4.8.1.1.1.b, 4.8.1.1.2.e.4, 4.8.1.1.2.e.5, 4.8.1.1.2.e.6, 4.8.1.1.2.e.7, 4.8.1.1.2.e.8.b,4.8.1.1.2.e.11, 4.8.1.1.2.e.12, 4.8.1.1.2.f and 4.8.1.1.2.h.
- When handling irradiated fuel in the secondary containment.
LIMERICK - UNIT 2 3/4 8-
Amendment No. 153,154, ,226 delete
ATTACHMENT 2g Proposed Technical Specifications Changes (Mark-up)
Nine Mile Point Nuclear Station, Unit 2 Renewed Facility Operating License No. NPF-69 3.8.1-18
AC Sources Operating 3.8.1 NMP2 3.8.1-18 Amendment 91, 152, 192 SURVEILLANCE REQUIREMENTS (continued)
SURVEILLANCE FREQUENCY SR 3.8.1.18
- - - - - - - - - - - - - - - -NOTE- - - - - - - - - - - - - - -
All DG starts may be preceded by an engine prelube period.
Verify, when started simultaneously from standby condition, each Division 1, 2, and 3 DG achieves, in 10 seconds, voltage 3950 V for Division 1 and 2 DGs and 3820 V for Division 3 DG, and frequency 58.8 Hz for Division 1 and 2 DGs and 58.0 Hz for Division 3 DG.
In accordance with the Surveillance Frequency Control Program SR 3.8.1.19
- - - - - - - - - - - - - - -NOTE- - - - - - - - - - - - - - -
All DG starts may be preceded by an engine prelube period.
Verify each required DG start from standby conditions and achieves:
a.
In 10 seconds, voltage 3950 V for Division 1 and 2 DGs and 3820 V for Division 3 DG, and frequency 58.8 Hz for Division 1 and 2 DGs and 58.0 Hz for Division 3 DG; and b.
Steady state voltage 3950 V and 4370 V and frequency 58.8 Hz and 61.2 Hz.
In accordance with the Surveillance Frequency Control Program Deleted.
ATTACHMENT 2h Proposed Technical Specifications Changes (Mark-up)
Peach Bottom Atomic Power Station, Units 2 and 3 Subsequent Renewed Facility Operating License Nos. DPR-44 and DPR-56 3.8-6 Unit 2 3.8-19 Unit 2 3.8-24 Unit 2 3.8-6 Unit 3 3.8-19 Unit 3 3.8-24 Unit 3
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AC Sources Shutdown 3.8.2 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.2.1
NOTE--------------------
The following SRs are not required to be performed: SR 3.8.1.3, SR 3.8.1.9 through SR 3.8.1.11, SR 3.8.1.13 through SR 3.8.1.16, SR 3.8.1.18, and SR 3.8.1.19.
NOTE--------------------
The requirements of SR 3.8.1.12, SR 3.8.1.13, and SR 3,8,1,19 are not required to be met during periods that ECCS are not required.
For required Unit 2 AC sources the SRs of Specification 3.8.1, except SR 3.8.1.8, SR 3.8.1.17, and SR 3.8.1.20, are applicable.
In accordance with applicable SRs SR 3.8.2.2
NOTE--------------------
When Unit 3 is not in MODE 1, 2, or 3, the Note to Unit 3 SR 3.8.2.1 is applicable.
For required Unit 3 AC sources, the SRs of Unit 3 Specification 3.8.1, except SR 3.8.1.8 (when only one Unit 3 offsite circuit is required), SR 3.8.1.12, SR 3.8.1.13, SR 3.8.1.17, SR 3.8.1.18 (ECCS load block requirement only), SR 3.8.1.19, and SR 3.8.1.20, are applicable.
In accordance with applicable SRs PBAPS UNIT 2 3.8-24 Amendment No. 221 and and delete
Deleted.
AC Sources Shutdown 3.8.2 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.2.1
NOTE--------------------
The following SRs are not required to be performed: SR 3.8.1.3, SR 3.8.1.9 through SR 3.8.1.11, SR 3.8.1.13 through SR 3.8.1.16, SR 3.8.1.18, and SR 3.8.1.19.
NOTE--------------------
The requirements of SR 3.8.1.12, SR 3.8.1.13, and SR 3.8.1.19 are not required to be met during periods that ECCS are not required.
For required Unit 3 AC sources the SRs of Specification 3.8.1, except SR 3.8.1.8, SR 3.8.1.17, and SR 3.8.1.20, are applicable.
In accordance with applicable SRs SR 3.8.2.2
NOTE--------------------
When Unit 2 is not in MODE 1, 2, or 3, the Note to Unit 2 SR 3.8.2.1 is applicable.
For required Unit 2 AC sources, the SRs of Unit 2 Specification 3.8.1, except SR 3.8.1.8 (when only one Unit 2 offsite circuit is required), SR 3.8.1.12, SR 3.8.1.13, SR 3.8.1.17, SR 3.8.1.18 (ECCS load block requirement only), SR 3.8.1.19, and SR 3.8.1.20, are applicable.
In accordance with applicable SRs PBAPS UNIT 3 3.8-24 Amendment No. 226 Amendment No.
and and delete
ATTACHMENT 2i Proposed Technical Specifications Changes (Mark-up)
Quad Cities Nuclear Power Station, Units 1 and 2 Renewed Facility Operating License Nos. DPR-29 and DPR-30 3.8.1-6 3.8.1-16
Deleted.
ATTACHMENT 3a Proposed Technical Specifications Bases Changes (Mark-up, Information Only)
Braidwood Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-72 and NPF-77 B 3.8.1-29 B 3.8.1-30 B 3.8.2-7
AC Sources-Operating B 3.8.1 BRAIDWOOD UNITS 1 & 2 B 3.8.1 29 Revision 136 BASES SURVEILLANCE REQUIREMENTS (continued) series of sequential, overlapping, or total steps so that the entire connection and loading sequence is verified.
SR 3.8.1.19 also demonstrates that the DG can achieve steady state voltage and frequency within the specified band around the nominal values of 4160 V and 60 Hz. The band placed around these nominal values is based on the capability of the voltage regulator and governor. WCAP-17308-NP-A (Ref.
- 12) contains the methodology for evaluating the impact of variations in voltage and frequency, due to the voltage regulator and governor on the following:
x Pump flow and developed head to meet design basis requirements, x
DG loading calculations, x
DG fuel consumption calculations, x
Motor Operated Valve (MOV) performance, and The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
This SR is modified by a Note. The reason for the Note is that the performance of the Surveillance would remove a required offsite circuit from service, perturb the electrical distribution system, and challenge safety systems.
SR 3.8.1.20 This Surveillance demonstrates that the DG starting independence has not been compromised. Also, this Surveillance demonstrates that each engine can achieve proper speed within the specified time when the DGs are started simultaneously.
The criteria that in d 10 seconds the DG achieves t 3950 V and t 58.8 Hz when the DG is started from a standby condition are starting and accelerating design criteria from the DG that are specified to confirm the capability of the DG to recover from a loading transient.
SR 3.8.1.20 also demonstrates that the DG can achieve steady state voltage and frequency within the specified band around the nominal values of 4160 V and 60 Hz. The band placed around these nominal values is based on the capability of the voltage regulator and governor. WCAP-17308-NP-A (Ref.
- 12) contains the methodology for evaluating the impact of variations in voltage and frequency, due to the voltage delete
AC Sources-Operating B 3.8.1 BRAIDWOOD UNITS 1 & 2 B 3.8.1 30 Revision 136 BASES SURVEILLANCE REQUIREMENTS (continued) regulator and governor on the following:
x Pump flow and developed head to meet design basis requirements, x
DG loading calculations, x
DG fuel consumption calculations, x
Motor Operated Valve (MOV) performance, and The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
REFERENCES
- 1.
10 CFR 50, Appendix A, GDC 17.
- 2.
UFSAR, Chapter 8.
- 3.
Regulatory Guide 1.9, Rev. 3, July 1993.
- 4.
UFSAR, Chapter 6.
- 5.
UFSAR, Chapter 15.
- 6.
Regulatory Guide 1.93, Rev. 0, December 1974.
- 7.
R. M. Krich to NRC Document Control Desk Letter, "Request for Amendment to Technical Specifications, to Facility Operating Licenses, Emergency Diesel Generators, Completion Time Extension and Surveillance Requirement Change," January 20, 2000.
- 8.
Generic Letter 84-15, "Proposed Staff Actions to Improve and Maintain Diesel Generator Reliability,"
July 2, 1984.
- 9.
10 CFR 50, Appendix A, GDC 18.
- 11. Regulatory Guide 1.137, Rev. 1, October 1979.
- 12. WCAP-17308-NP-A, "Treatment of Diesel Generator (DG)
Technical Specification Frequency and Voltage Tolerances."
delete
AC Sources-Shutdown B 3.8.2 BRAIDWOOD UNITS 1 & 2 B 3.8.2 7 Revision 0 BASES ACTIONS (continued)
Pursuant to LCO 3.0.6, the Distribution System's ACTIONS would not be entered even if all AC sources to it are inoperable, resulting in de-energization. Therefore, the Required Actions of Condition A are modified by a Note to indicate that when Condition A is entered with no AC power to any required ESF bus, the ACTIONS for LCO 3.8.10 must be immediately entered. This Note allows Condition A to provide requirements for the loss of the offsite circuit, whether or not a division is de-energized. LCO 3.8.10 would provide the appropriate restrictions for the situation involving a de-energized division.
SURVEILLANCE SR 3.8.2.1 REQUIREMENTS SR 3.8.2.1 requires the SRs from LCO 3.8.1 that are necessary for ensuring the OPERABILITY of the AC sources in other than MODES 1, 2, 3, and 4. SR 3.8.1.8 is not required to be met since only one offsite circuit is required to be OPERABLE. SR 3.8.1.17 is not required to be met because the required OPERABLE DG is not required to undergo periods of being synchronized to the offsite circuit. SR 3.8.1.20 is not required to be met because starting independence is not required with the DG that is not required to be operable.
This SR is modified by a Note. The reason for the Note is to preclude requiring the OPERABLE DG from being paralleled with the offsite power network or otherwise rendered inoperable during performance of SRs, and to preclude de-energizing a required 4160 V ESF bus or disconnecting a required offsite circuit during performance of SRs. With limited AC sources available, a single event could compromise both the required circuit and the DG. It is the intent that these SRs must still be capable of being met, but actual performance is not required during periods when the DG and offsite circuit is required to be OPERABLE.
Refer to the corresponding Bases for LCO 3.8.1 for a discussion of each SR.
REFERENCES None.
ATTACHMENT 3b Proposed Technical Specifications Bases Changes (Mark-up, Information Only)
Byron Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-37 and NPF-66 B 3.8.1-29 B 3.8.1-30 B 3.8.2-7
AC Sources-Operating B 3.8.1 BYRON UNITS 1 & 2 B 3.8.1 29 Revision 119 BASES SURVEILLANCE REQUIREMENTS (continued)
This Surveillance demonstrates the DG operation, as discussed in the Bases for SR 3.8.1.11, during a loss of offsite power actuation test signal in conjunction with an ESF actuation signal. In lieu of actual demonstration of connection and loading of loads, testing that adequately shows the capability of the DG system to perform these functions is acceptable. This testing may include any series of sequential, overlapping, or total steps so that the entire connection and loading sequence is verified.
SR 3.8.1.19 also demonstrates that the DG can achieve steady state voltage and frequency within the specified band around the nominal values of 4160 V and 60 Hz. The band placed around these nominal values is based on the capability of the voltage regulator and governor. WCAP-17308-NP-A (Ref.
- 12) contains the methodology for evaluating the impact of variations in voltage and frequency, due to the voltage regulator and governor on the following:
x Pump flow and developed head to meet design basis requirements, x
DG loading calculations, x
DG fuel consumption calculations, x
Motor Operated Valve (MOV) performance, and The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
This SR is modified by a Note. The reason for the Note is that the performance of the Surveillance would remove a required offsite circuit from service, perturb the electrical distribution system, and challenge safety systems.
SR 3.8.1.20 This Surveillance demonstrates that the DG starting independence has not been compromised. Also, this Surveillance demonstrates that each engine can achieve proper speed within the specified time when the DGs are started simultaneously.
The criteria that in d 10 seconds the DG achieves t 3950 V and t 58.8 Hz when the DG is started from a standby condition are starting and accelerating design criteria from the DG that are specified to confirm the capability of the DG to recover from a loading transient.
delete
AC Sources-Operating B 3.8.1 BYRON UNITS 1 & 2 B 3.8.1 30 Revision 119 BASES SURVEILLANCE REQUIREMENTS (continued)
SR 3.8.1.20 also demonstrates that the DG can achieve steady state voltage and frequency within the specified band around the nominal values of 4160 V and 60 Hz. The band placed around these nominal values is based on the capability of the voltage regulator and governor. WCAP-17308-NP-A (Ref.
- 12) contains the methodology for evaluating the impact of variations in voltage and frequency, due to the voltage regulator and governor on the following:
x Pump flow and developed head to meet design basis requirements, x
DG loading calculations, x
DG fuel consumption calculations, Motor Operated Valve (MOV) performance, and The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
REFERENCES
- 1.
10 CFR 50, Appendix A, GDC 17.
- 2.
UFSAR, Chapter 8.
- 3.
Regulatory Guide 1.9, Rev. 3, July 1993.
- 4.
UFSAR, Chapter 6.
- 5.
UFSAR, Chapter 15.
- 6.
Regulatory Guide 1.93, Rev. 0, December 1974.
- 7.
R. M. Krich to NRC Document Control Desk Letter, "Request for Amendment to Technical Specifications, to Facility Operating Licenses, Emergency Diesel Generators, Completion Time Extension and Surveillance Requirement Change," January 20, 2000.
- 8.
Generic Letter 84-15, "Proposed Staff Actions to Improve and Maintain Diesel Generator Reliability,"
July 2, 1984.
- 9.
10 CFR 50, Appendix A, GDC 18.
- 11. Regulatory Guide 1.137, Rev. 1, October 1979.
delete
AC Sources-Shutdown B 3.8.2 BYRON UNITS 1 & 2 B 3.8.2 7 Revision 0 BASES ACTIONS (continued)
Pursuant to LCO 3.0.6, the Distribution System's ACTIONS would not be entered even if all AC sources to it are inoperable, resulting in de-energization. Therefore, the Required Actions of Condition A are modified by a Note to indicate that when Condition A is entered with no AC power to any required ESF bus, the ACTIONS for LCO 3.8.10 must be immediately entered. This Note allows Condition A to provide requirements for the loss of the offsite circuit, whether or not a division is de-energized. LCO 3.8.10 would provide the appropriate restrictions for the situation involving a de-energized division.
SURVEILLANCE SR 3.8.2.1 REQUIREMENTS SR 3.8.2.1 requires the SRs from LCO 3.8.1 that are necessary for ensuring the OPERABILITY of the AC sources in other than MODES 1, 2, 3, and 4. SR 3.8.1.8 is not required to be met since only one offsite circuit is required to be OPERABLE. SR 3.8.1.17 is not required to be met because the required OPERABLE DG is not required to undergo periods of being synchronized to the offsite circuit. SR 3.8.1.20 is not required to be met because starting independence is not required with the DG that is not required to be operable.
This SR is modified by a Note. The reason for the Note is to preclude requiring the OPERABLE DG from being paralleled with the offsite power network or otherwise rendered inoperable during performance of SRs, and to preclude de-energizing a required 4160 V ESF bus or disconnecting a required offsite circuit during performance of SRs. With limited AC sources available, a single event could compromise both the required circuit and the DG. It is the intent that these SRs must still be capable of being met, but actual performance is not required during periods when the DG and offsite circuit is required to be OPERABLE.
Refer to the corresponding Bases for LCO 3.8.1 for a discussion of each SR.
REFERENCES None.
ATTACHMENT 3c Proposed Technical Specifications Bases Changes (Mark-up, Information Only)
Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 B 3.8-31 B 3.8-32 B 3.8-39
AC Sources ? Operating B 3.8.1 CLINTON B 3.8-31 Revision No. 20-7 BASES SURVEILLANCE SR 3.8.1.19 (continued)
REQUIREMENTS
- 1)
Unexpected operational events which cause the equipment to perform the function specified by this Surveillance, for which adequate documentation of the required performance is available; and
- 2)
Post maintenance testing that requires performance of this Surveillance in order to restore the component to OPERABLE, provided the maintenance was required, or performed in conjunction with maintenance required to maintain OPERABILITY or reliability.
With regard to DG start time, required voltage and frequency values obtained pursuant to this SR, as read from plant indication instrumentation, the specified limit is not considered to be a nominal value with respect to instrument uncertainties. This requires additional margin to be added to the limit to compensate for instrument uncertainties, for implementation in the associated plant procedures (Refs. 17, 18, 19, 22).
SR 3.8.1.20 This Surveillance demonstrates that the DG starting independence has not been compromised. Also, this Surveillance demonstrates that each engine can achieve proper speed within the specified time when the DGs are started simultaneously.
The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
This SR is modified by a Note. The reason for the Note is to minimize wear on the DG during testing. For the purpose of this testing, the DGs must be started from standby conditions. Standby conditions mean that the lube oil is heated by the jacket water and continuously circulated through a portion of the system as recommended by the vendor. Engine jacket water is heated by an immersion heater and circulates through the system by natural circulation. This allowance is not intended to impose a maximum limit on engine temperatures.
With regard to required voltage and frequency values obtained pursuant to this SR, as read from plant indication (continued) delete
AC Sources ? Operating B 3.8.1 CLINTON B 3.8-32 Revision No. 14-2 BASES SURVEILLANCE SR 3.8.1.20 (continued)
REQUIREMENTS instrumentation, the specified limit is not considered to be a nominal value with respect to instrument uncertainties.
This requires additional margin to be added to the limit to compensate for instrument uncertainties, for implementation in the associated plant procedures (Refs. 17, 18, 19, 22, 23).
(continued)
This page left intentionally blank This page left intentionally blank.
AC Sources ? Shutdown B 3.8.2 CLINTON B 3.8-39 Revision No. 21-9 BASES ACTIONS C.1 (continued) additional required AC source is inoperable, and power is still supplied to HPCS, 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> is allowed to restore the additional required AC source to OPERABLE. This is reasonable considering HPCS will still perform its function, absent an additional single failure.
SURVEILLANCE SR 3.8.2.1 REQUIREMENTS SR 3.8.2.1 requires the SRs from LCO 3.8.1 that are necessary for ensuring the OPERABILITY of the AC sources in other than MODES 1, 2, and 3. SR 3.8.1.8 is not required to be met since only one offsite circuit is required to be OPERABLE. SR 3.8.1.7, SR 3.8.1.11, SR 3.8.1.12, SR 3.8.1.13, SR 3.8.1.15, SR 3.8.1.18, and SR 3.8.1.19 are not required to be met because DG start and load within a specified time and response on an offsite power or ECCS initiation signal is not required. In MODES 4 and 5 ECCS injection/spray subsystems are manually controlled in accordance with LCO 3.5.2, "Reactor Pressure Vessel (RPV)
Water Inventory Control." No ECCS initiation signals are credited for initiation of these subsystems. Adequate time is available to manually start and load DGs from the Main Control Room in support of RPV inventory control, if required. Therefore, SR 3.8.1.12 and SR 3.8.1.19, which verify the DG's capability to start automatically on actual or simulated ECCS initiation signals, are not required to be met in MODES 4 and 5. SR 3.8.1.17 is not required to be met because the required OPERABLE DG(s) is not required to undergo periods of being synchronized to the offsite circuit. SR 3.8.1.20 is excepted because starting independence is not required with the DG(s) that is not required to be OPERABLE. Refer to the corresponding Bases for LCO 3.8.1 for a discussion of each SR.
This SR is modified by a Note which precludes requiring the OPERABLE DG(s) from being paralleled with the offsite power network or otherwise rendered inoperable during the performance of SRs, and preclude de-energizing a required 4.16 kV ESF bus or disconnecting a required offsite circuit during performance of SRs. With limited AC sources available, a single event could compromise both the required circuit and the DG. It is the intent that these SRs must still be capable of being met, but actual performance is not required for any DG or offsite circuit.
REFERENCES None.
delete
ATTACHMENT 3d Proposed Technical Specifications Bases Changes (Mark-up, Information Only)
Dresden Nuclear Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-19 and DPR-25 B 3.8.1-17 B 3.8.1-32 B 3.8.1-33 B 3.8.2-6
AC SourcesOperating B 3.8.1 Dresden 2 and 3 B 3.8.1-32 Revision 55 BASES SURVEILLANCE SR 3.8.1.18 (continued)
REQUIREMENTS The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
SR 3.8.1.19 In the event of a DBA coincident with a loss of offsite power, the DGs are required to supply the necessary power to ESF systems so that the fuel, RCS, and containment design limits are not exceeded.
This Surveillance demonstrates DG operation, as discussed in the Bases for SR 3.8.1.12, during a loss of offsite power actuation test signal in conjunction with an ECCS initiation signal. In lieu of actual demonstration of connection and loading of loads, testing that adequately shows the capability of the DG system to perform these functions is acceptable. This testing may include any series of sequential, overlapping, or total steps so that the entire connection and loading sequence is verified.
The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
This SR is modified by a Note. The reason for the Note is to minimize wear and tear on the DGs during testing. For the purpose of this testing, the DGs must be started from standby conditions, that is, with the engine coolant and oil being continuously circulated and temperature maintained consistent with manufacturer recommendations.
SR 3.8.1.20 This Surveillance demonstrates that the DG starting independence has not been compromised. Also, this Surveillance demonstrates that each engine can achieve proper frequency and voltage within the specified time when the DGs are started simultaneously.
The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
(continued) delete Deleted.
AC SourcesOperating B 3.8.1 Dresden 2 and 3 B 3.8.1-33 Revision 34 BASES SURVEILLANCE SR 3.8.1.20 (continued)
REQUIREMENTS This SR is modified by a Note. The reason for the Note is to minimize wear on the DG during testing. For the purpose of this testing, the DGs must be started from standby conditions, that is, with the engine coolant and oil continuously circulated and temperature maintained consistent with manufacturer recommendations.
SR 3.8.1.21 With the exception of this Surveillance, all other Surveillances of this Specification (SR 3.8.1.1 through SR 3.8.1.20) are applied only to the given unit AC sources.
This Surveillance is provided to direct that appropriate Surveillances for the required opposite unit AC sources are governed by the applicable opposite unit Technical Specifications. Performance of the applicable opposite unit Surveillances will satisfy the opposite unit requirements, as well as satisfying the given unit Surveillance Requirement. Exceptions are noted to the opposite unit SRs of LCO 3.8.1. SR 3.8.1.9 and SR 3.8.1.20 are excepted since only one opposite unit offsite circuit and DG is required by the given unit's Specification. SR 3.8.1.13, SR 3.8.1.18, and SR 3.8.1.19 are excepted since these SRs test the opposite unit's ECCS initiation signal, which is not needed for the AC electrical power sources to be OPERABLE on the given unit.
The Frequency required by the applicable opposite unit SR also governs performance of that SR for the given unit.
As Noted, if the opposite unit is in MODE 4 or 5, or moving recently irradiated fuel assemblies in the secondary containment, the following opposite unit SRs are not required to be performed: SR 3.8.1.3, SR 3.8.1.10 through SR 3.8.1.12, and SR 3.8.1.14 through SR 3.8.1.17. This ensures that a given unit SR will not require an opposite unit SR to be performed, when the opposite unit Technical Specifications exempts performance of an opposite unit SR (however, as stated in the opposite unit SR 3.8.2.1 Note 1, while performance of an SR is exempted, the SR must still be met).
REFERENCES 1.
UFSAR, Section 3.1.2.2.8.
2.
UFSAR, Section 8.2.
(continued)
(continued) 19 is
AC SourcesShutdown B 3.8.2 Dresden 2 and 3 B 3.8.2-6 Revision 8682 BASES ACTIONS A.2.1, A.2.2, A.2.3, B.1, B.2, and B.3 (continued)
Pursuant to LCO 3.0.6, the Distribution System ACTIONS would not be entered even if all AC sources to it are inoperable, resulting in de-energization. Therefore, the Required Actions of Condition A have been modified by a Note to indicate that when Condition A is entered with no AC power to any required ESS bus, ACTIONS for LCO 3.8.8 must be immediately entered. This Note allows Condition A to provide requirements for the loss of the offsite circuit whether or not a division is de-energized. LCO 3.8.8 provides the appropriate restrictions for the situation involving a de-energized division.
SURVEILLANCE SR 3.8.2.1 REQUIREMENTS SR 3.8.2.1 requires the SRs from LCO 3.8.1 that are necessary for ensuring the OPERABILITY of the AC sources in other than MODES 1, 2, and 3 to be applicable. SR 3.8.1.9 is not required to be met since only one offsite circuit is required to be OPERABLE. SR 3.8.1.8, SR 3.8.1.12, SR 3.8.1.13, SR 3.8.1.14, SR 3.8.1.16, SR 3.8.1.18, and SR 3.8.1.19 are not required to be met because DG start and load within a specified time and response on an offsite power or ECCS initiation signal is not required. In MODES 4 and 5 ECCS injection/spray subsystems are manually controlled in accordance with LCO 3.5.2, "Reactor Pressure Vessel (RPV) Water inventory Control." No ECCS initiation signals are credited for initiation of these subsystems.
Adequate time is available to manually start and load EDGs from the Main Control Room in support of RPV inventory control, if required. SR 3.8.1.20 is excepted because starting independence is not required with the DG(s) that is not required to be OPERABLE. SR 3.8.1.21 is not required to be met because the opposite unit's DG is not required to be OPERABLE in MODES 4 and 5, and during movement of recently irradiated fuel assemblies in secondary containment. Refer to the corresponding Bases for LCO 3.8.1 for a discussion of each SR.
(continued) delete
ATTACHMENT 3e Proposed Technical Specifications Bases Changes (Mark-up, Information Only)
LaSalle County Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-11 and NPF-18 B 3.8.1-23 B 3.8.1-44 B 3.8.1-45 B 3.8.2-8
AC SourcesOperating B 3.8.1 LaSalle 1 and 2 B 3.8.1-44 Revision 89 BASES SURVEILLANCE REQUIREMENTS SR 3.8.1.19 (continued) following corrective maintenance, corrective modification, deficient or incomplete surveillance testing, and other unanticipated OPERABILITY concerns) provided an assessment determines plant safety is maintained or enhanced. This assessment shall, as a minimum, consider the potential outcomes and transients associated with a failed partial Surveillance, a successful partial Surveillance, and a perturbation of the offsite or onsite system when they are tied together or operated independently for the partial Surveillance; as well as the operator procedures available to cope with these outcomes. These shall be measured against the avoided risk of a plant shutdown and startup to determine that plant safety is maintained or enhanced when portions of the Surveillance are performed in MODE 1 or 2.
Risk insights or deterministic methods may be used for this assessment. Credit may be taken for unplanned events that satisfy this SR.
SR 3.8.1.20 This Surveillance demonstrates that the unit DG starting independence has not been compromised. Also, this Surveillance demonstrates that each engine can achieve proper frequency and voltage within the specified time when the unit DGs are started simultaneously.
The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
This SR is modified by a Note. The reason for the Note is to minimize wear on the DG during testing. The prelube period shall be consistent with manufacturer recommendations. For the purpose of this testing, the DGs must be started from normal standby conditions, that is, with the engine jacket water and lube oil continuously circulated and temperature is being maintained consistent with manufacturer recommendations.
SR 3.8.1.21 With the exception of this Surveillance, all other Surveillances of this Specification (SR 3.8.1.1 through SR 3.8.1.20) are applied to the given unit AC sources.
(continued) 19 Deleted.
AC SourcesOperating B 3.8.1 LaSalle 1 and 2 B 3.8.1-45 Revision 89 BASES SURVEILLANCE SR 3.8.1.21 (continued)
REQUIREMENTS This Surveillance is provided to direct that appropriate Surveillances for the required opposite unit AC source is governed by the applicable opposite unit Technical Specifications. Performance of the applicable opposite unit Surveillances will satisfy the opposite unit requirements as well as satisfy the given unit Surveillance Requirement.
Exceptions are noted to the opposite unit SRs of LCO 3.8.1.
SR 3.8.1.20 is excepted since only one opposite unit DG is required by the given unit Specification. SR 3.8.1.12, SR 3.8.1.13, SR 3.8.1.17, SR 3.8.1.18, and SR 3.8.1.19 are excepted since these SRs test the opposite unit's ECCS initiation signal, which is not required for the AC electrical power sources to be OPERABLE on a given unit.
The Frequency required by the applicable opposite unit SR also governs performance of that SR for the given unit.
As noted, if the opposite unit is in MODE 4 or 5, or moving irradiated fuel assemblies in secondary containment, SR 3.8.1.3, SR 3.8.1.9 through SR 3.8.1.11, and SR 3.8.1.14 through SR 3.8.1.16 are not required to be performed. This ensures that a given unit SR will not require an opposite unit SR to be performed, when the opposite unit Technical Specifications exempts performance of an opposite unit SR (however, as stated in the opposite unit SR 3.8.2.1 Note 1, while performance of an SR is exempted, the SR must still be met).
(continued)
AC SourcesShutdown B 3.8.2 LaSalle 1 and 2 B 3.8.2-8 Revision 9076 BASES SURVEILLANCE SR 3.8.2.1 (continued)
REQUIREMENTS power or ECCS initiation signal is not required.
SR 3.8.1.17 is not required to be met because the required OPERABLE DG(s) is not required to undergo periods of being synchronized to the offsite circuit. SR 3.8.1.20 is excepted because starting independence is not required with the DG(s) that is not required to be OPERABLE. Refer to the corresponding Bases for LCO 3.8.1 for a discussion of each SR.
This SR is modified by a Note which precludes requiring the OPERABLE DG(s) from being paralleled with the offsite power network or otherwise rendered inoperable during the performance of SRs, and to preclude de-energizing a required 4.16 kV emergency bus or disconnecting a required offsite circuit during performance of SRs. With limited AC sources available, a single event could compromise both the required circuit and the DG. It is the intent that these SRs must still be capable of being met, but actual performance is not required during periods when the DG and offsite circuit are required to be OPERABLE.
REFERENCES None.
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ATTACHMENT 3f Proposed Technical Specifications Bases Changes (Mark-up, Information Only)
Limerick Generating Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-39 and NPF-85 B 3/4 8-2 Unit 1 B 3/4 8-2 Unit 2
ATTACHMENT 3g Proposed Technical Specifications Bases Changes (Mark-up, Information Only)
Nine Mile Point Nuclear Station, Unit 2 Renewed Facility Operating License No. NPF-69 B 3.8.1-36 B 3.8.2-7
AC Sources - Operating B 3.8.1 NMP2 B 3.8.1-36 Revision 35 (A138), 44 (A152), 53 (A165)
BASES SURVEILLANCE SR 3.8.1.17 (continued)
REQUIREMENTS deterministic methods may be used for this assessment. Credit may be taken for unplanned events that satisfy this SR.
SR 3.8.1.18 This Surveillance demonstrates that the DG starting independence has not been compromised. Also, this Surveillance demonstrates that each engine can achieve proper frequency and voltage within the specified time when the DGs are started simultaneously.
The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
This SR is modified by a Note. The reason for the Note is to minimize wear on the DG during testing. For the purpose of this testing, the DGs must be started from standby conditions, that is, with the engine coolant and oil continuously circulated and temperature maintained consistent with manufacturer recommendations.
REFERENCES
- 1.
10 CFR 50, Appendix A, GDC 17.
- 2.
USAR, Chapter 8.
- 3.
USAR, Tables 8.3-1, 8.3-2, and 8.3-3.
- 4.
Regulatory Guide 1.9, Revision 2, December 1979.
- 5.
USAR, Chapter 6.
- 6.
USAR, Chapter 15.
- 7.
- 8.
Regulatory Guide 1.93, Revision 0, December 1974.
- 9.
Generic Letter 84-15, July 2, 1984.
- 11. Regulatory Guide 1.9, Revision 3, July 1993.
- 12. Regulatory Guide 1.108, Revision 1, August 1977.
- 13. Regulatory Guide 1.137, Revision 1, October 1979.
- 14. ANSI C84.1, 1982.
- 15. USAR, Section 15.6.5.
- 16. Deleted.
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AC Sources - Shutdown B 3.8.2 NMP2 B 3.8.2-7 Revision 0, 66 (190)
BASES (continued)
SURVEILLANCE SR 3.8.2.1 REQUIREMENTS SR 3.8.2.1 requires the SRs from LCO 3.8.1 that are necessary for ensuring the OPERABILITY of the AC sources in other than MODES 1, 2, and 3 to be applicable. SR 3.8.1.9, SR 3.8.1.10, SR 3.8.1.11, SR 3.8.1.13, SR 3.8.1.16, and SR 3.8.1.17 are not required to be met because DG Start and load withing a specified time and response on an offsite power or ECCS initiation signal is not required. SR 3.8.1.15 is not required to be met because the required OPERABLE DG(s) is not required to undergo periods of being synchronized to the offsite circuit. SR 3.8.1.18 is excepted because starting independence is not required with the DG(s) that is not required to be OPERABLE. Refer to the corresponding Bases for LCO 3.8.1 for a discussion of each SR.
This SR is modified by a Note which precludes requiring the OPERABLE DG(s) from being paralleled with the offsite power network or otherwise rendered inoperable during the performance of SRs, and to preclude de-energizing a required 4.16 kV emergency bus or disconnecting a required offsite circuit during performance of SRs. With limited AC sources available, a single event could compromise both the required circuit and the DG. It is the intent that these SRs must still be capable of being met, but actual performance is not required during periods when the DG and offsite circuit are required to be OPERABLE.
REFERENCES
- 1.
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ATTACHMENT 3h Proposed Technical Specifications Bases Changes (Mark-up, Information Only)
Peach Bottom Atomic Power Station, Units 2 and 3 Subsequent Renewed Facility Operating License Nos. DPR-44 and DPR-56 B 3.8-18 Unit 2 B 3.8-37 Unit 2 B 3.8-38 Unit 2 B 3.8-46 Unit 2 B 3.8-18 Unit 3 B 3.8-37 Unit 3 B 3.8-38 Unit 3 B 3.8-46 Unit 3
delete Deleted.
19 delete
AC Sources Shutdown B 3.8.2 BASES SURVEILLANCE SR 3.8.2.1 (continued)
REQUIREMENTS required to be met since only one offsite circuit is required to be OPERABLE. SR 3.8.1.17 is not required to be met because the required OPERABLE DG(s) is not required to undergo periods of being synchronized to the offsite circuit. SR 3.8.1.20 is excepted because starting independence is not required with the DG(s) that is not required to be OPERABLE. Refer to the corresponding Bases for LCO 3.8.1 for a discussion of each SR.
This SR is modified by a Note. The reason for the Note is to preclude requiring the OPERABLE DG(s) from being paralleled with the offsite power network or otherwise rendered inoperable during the performance of SRs, and to preclude de-energizing a required 4 kV emergency bus or disconnecting a required offsite circuit during performance of SRs. With limited AC sources available, a single event could compromise both the required circuit and the DG. It is the intent that these SRs must still be capable of being met, but actual performance is not required during periods when the DG and offsite circuit are required to be OPERABLE.
This SR is modified by a second Note. The reason for the Note is to preclude requiring the automatic functions of the DG(s) on an ECCS initiation to be functional during periods when ECCS are not required.
SR 3.8.2.2 This Surveillance is provided to direct that the appropriate Surveillances for the required Unit 3 AC sources are governed by the Unit 3 Technical Specifications.
Performance of the applicable Unit 3 Surveillances will satisfy Unit 3 requirements, as well as satisfying this Unit 2 Surveillance Requirement. Seven exceptions are noted to the Unit 3 SRs of LCO 3.8.1. SR 3.8.1.8 is excepted when only one Unit 3 offsite circuit is required by the Unit 2 Specification, since there is not a second circuit to transfer to. SR 3.8.1.12, SR 3.8.1.13, SR 3.8.1.17, SR 3.8.1.18 (ECCS load block requirements only), and SR 3.8.1.19 are excepted since these SRs test the Unit 3 ECCS initiation signal, which is not needed for the AC sources to be OPERABLE on Unit 2. SR 3.8.1.20 is excepted since starting independence is not required with the DG(s) that is not required to be OPERABLE.
(continued)
PBAPS UNIT 2 B 3.8-46 Revision No. 145 delete
delete Deleted.
delete 19
AC Sources Shutdown B 3.8.2 BASES SURVEILLANCE SR 3.8.2.1 (continued)
REQUIREMENTS required to be met since only one offsite circuit is required to be OPERABLE. SR 3.8.1.17 is not required to be met because the required OPERABLE DG(s) is not required to undergo periods of being synchronized to the offsite circuit. SR 3.8.1.20 is excepted because starting independence is not required with the DG(s) that is not required to be OPERABLE. Refer to the corresponding Bases for LCO 3.8.1 for a discussion of each SR.
This SR is modified by a Note. The reason for the Note is to preclude requiring the OPERABLE DG(s) from being paralleled with the offsite power network or otherwise rendered inoperable during the performance of SRs, and to preclude de-energizing a required 4 kV emergency bus or disconnecting a required offsite circuit during performance of SRs. With limited AC sources available, a single event could compromise both the required circuit and the DG. It is the intent that these SRs must still be capable of being met, but actual performance is not required during periods when the DG and offsite circuit are required to be OPERABLE.
This SR is modified by a second Note. The reason for the Note is to preclude requiring the automatic functions of the DG(s) on an ECCS initiation to be functional during periods when ECCS are not required.
SR 3.8.2.2 This Surveillance is provided to direct that the appropriate Surveillances for the required Unit 2 AC sources are governed by the Unit 2 Technical Specifications.
Performance of the applicable Unit 2 Surveillances will satisfy Unit 2 requirements, as well as satisfying this Unit 3 Surveillance Requirement. Seven exceptions are noted to the Unit 2 SRs of LCO 3.8.1. SR 3.8.1.8 is excepted when only one Unit 2 offsite circuit is required by the Unit 3 Specification, since there is not a second circuit to transfer to. SR 3.8.1.12, SR 3.8.1.13, SR 3.8.1.17, SR 3.8.1.18 (ECCS load block requirements only), and SR 3.8.1.19 are excepted since these SRs test the Unit 2 ECCS initiation signal, which is not needed for the AC sources to be OPERABLE on Unit 3. SR 3.8.1.20 is excepted since starting independence is not required with the DG(s) that is not required to be OPERABLE.
(continued)
PBAPS UNIT 3 B 3.8-46 Revision No. 143 delete
ATTACHMENT 3i Proposed Technical Specifications Bases Changes (Mark-up, Information Only)
Quad Cities Nuclear Power Station, Units 1 and 2 Renewed Facility Operating License Nos. DPR-29 and DPR-30 B 3.8.1-18 B 3.8.1-34 B 3.8.2-6
AC SourcesOperating B 3.8.1 Quad Cities 1 and 2 B 3.8.1-34 Revision 43 BASES SURVEILLANCE SR 3.8.1.20 REQUIREMENTS (continued)
This Surveillance demonstrates that the DG starting independence has not been compromised. Also, this Surveillance demonstrates that each engine can achieve proper frequency and voltage within the specified time when the DGs are started simultaneously.
The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.
This SR is modified by a Note. The reason for the Note is to minimize wear on the DG during testing. For the purpose of this testing, the DGs must be started from standby conditions, that is, with the engine coolant and oil continuously circulated and temperature maintained consistent with manufacturer recommendations.
SR 3.8.1.21 With the exception of this Surveillance, all other Surveillances of this Specification (SR 3.8.1.1 through SR 3.8.1.20) are applied only to the given unit AC sources.
This Surveillance is provided to direct that appropriate Surveillances for the required opposite unit AC sources are governed by the applicable opposite unit Technical Specifications. Performance of the applicable opposite unit Surveillances will satisfy the opposite unit requirements, as well as satisfying the given unit Surveillance Requirement. Exceptions are noted to the opposite unit SRs of LCO 3.8.1. SR 3.8.1.9 and SR 3.8.1.20 are excepted since only one opposite unit offsite circuit and DG is required by the given unit's Specification. SR 3.8.1.13, SR 3.8.1.18, and SR 3.8.1.19 are excepted since these SRs test the opposite unit's ECCS initiation signal, which is not needed for the AC electrical power sources to be OPERABLE on the given unit.
The Frequency required by the applicable opposite unit SR also governs performance of that SR for the given unit.
(continued) delete 19 is Deleted.
AC SourcesShutdown B 3.8.2 Quad Cities 1 and 2 B 3.8.2-6 Revision 74 BASES ACTIONS A.2.1, A.2.2, A.2.3, B.1, B.2, and B.3 (continued)
The Completion Time of immediately is consistent with the required times for actions requiring prompt attention. The restoration of the required AC electrical power sources should be completed as quickly as possible in order to minimize the time during which the plant safety systems may be without sufficient power.
Pursuant to LCO 3.0.6, the Distribution System ACTIONS would not be entered even if all AC sources to it are inoperable, resulting in de-energization. Therefore, the Required Actions of Condition A have been modified by a Note to indicate that when Condition A is entered with no AC power to any required ESS bus, ACTIONS for LCO 3.8.8 must be immediately entered. This Note allows Condition A to provide requirements for the loss of the offsite circuit whether or not a division is de-energized. LCO 3.8.8 provides the appropriate restrictions for the situation involving a de-energized division.
SURVEILLANCE SR 3.8.2.1 REQUIREMENTS SR 3.8.2.1 requires the SRs from LCO 3.8.1 that are necessary for ensuring the OPERABILITY of the AC sources in other than MODES 1, 2, and 3 to be applicable. SR 3.8.1.9 is not required to be met since only one offsite circuit is required to be OPERABLE. SR 3.8.1.8, SR 3.8.1.12, SR 3.8.1.13, SR 3.8.1.14, SR 3.8.1.16, SR 3.8.1.18, and SR 3.8.1.19 are not required to be met because DG start and load within a specified time and response on an offsite power or ECCS initiation signal is not required.
SR 3.8.1.20 is excepted because starting independence is not required with the DG(s) that is not required to be OPERABLE. SR 3.8.1.21 is not required to be met because the opposite unit's DG is not required to be OPERABLE in MODES 4 and 5, and during movement of recently irradiated fuel assemblies in secondary containment. Refer to the corresponding Bases for LCO 3.8.1 for a discussion of each SR.
This SR is modified by a Note which precludes requiring the OPERABLE DG(s) from being paralleled with the offsite power network or otherwise rendered inoperable during the performance of SRs, and to preclude de-energizing a required (continued) delete