IR 05000282/2023001
| ML23130A172 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 05/10/2023 |
| From: | Hironori Peterson NRC/RGN-III/DORS/RPB3 |
| To: | Domingos C Northern States Power Company, Minnesota |
| References | |
| IR 2023001 | |
| Download: ML23130A172 (1) | |
Text
SUBJECT:
PRAIRIE ISLAND NUCLEAR GENERATING PLANT - INTEGRATED INSPECTION REPORT 05000282/2023001 AND 05000306/2023001
Dear Christopher P. Domingos:
On March 31, 2023, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Prairie Island Nuclear Generating Plant. On April 17, 2023, the NRC inspectors discussed the results of this inspection with Timothy Borgen, Plant Manager, and other members of your staff.
The results of this inspection are documented in the enclosed report.
No findings or violations of more than minor significance were identified during this inspection.
This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely, Hironori Peterson, Chief Reactor Projects Branch 3 Division of Operating Reactor Safety Docket Nos. 05000282 and 05000306 License Nos. DPR-42 and DPR-60
Enclosure:
As stated
Inspection Report
Docket Numbers:
05000282 and 05000306
License Numbers:
Report Numbers:
05000282/2023001 and 05000306/2023001
Enterprise Identifier:
I-2023-001-0065
Licensee:
Northern States Power Company
Facility:
Prairie Island Nuclear Generating Plant
Location:
Welch, MN
Inspection Dates:
January 01, 2023 to March 31, 2023
Inspectors:
A. Dahbur, Senior Reactor Inspector
K. Pusateri, Resident Inspector
D. Tesar, Senior Resident Inspector
Approved By:
Hironori Peterson, Chief
Reactor Projects Branch 3
Division of Operating Reactor Safety
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at Prairie Island Nuclear Generating Plant, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.
List of Findings and Violations
No findings or violations of more than minor significance were identified.
Additional Tracking Items
None.
PLANT STATUS
Both Unit 1 and Unit 2 began the inspection period at rated thermal power and remained at or near rated thermal power for the remainder of the inspection period with the exception of brief power reductions to perform surveillance testing or flexible power operations.
INSPECTION SCOPES
Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors performed activities described in IMC 2515, Appendix D, Plant Status, observed risk significant activities, and completed on-site portions of IPs. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.
REACTOR SAFETY
71111.01 - Adverse Weather Protection
Impending Severe Weather Sample (IP Section 03.02) (2 Samples)
- (1) The inspectors evaluated the adequacy of the overall preparations to protect risk-significant systems from impending severe weather - winter storm warning, impending heavy, wet snow walkdown of risk significant equipment on January 3, 2023.
- (2) The inspectors evaluated the adequacy of the overall preparations to protect risk-significant systems from impending severe weather sub-zero weather (-17°F) on January 31, 2023.
71111.04 - Equipment Alignment
Partial Walkdown Sample (IP Section 03.01) (4 Samples)
The inspectors evaluated system configurations during partial walkdowns of the following systems/trains:
(1)121 motor-driven cooling water pump (MDCLP) alignment during 22 diesel-driven cooling water pump (DDCLP) work window on January 23, 2023 (2)22 DDCLP fuel oil system on January 12, 2023 (3)12 DDCLP fuel oil system on January 12, 2023
- (4) D6 emergency diesel generator (EDG) walkdown with D5 EDG out of service (OOS)for maintenance on February 7, 2023
Complete Walkdown Sample (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated system configurations during a complete walkdown of the Unit 1 480V system on March 21, 2023.
71111.05 - Fire Protection
Fire Area Walkdown and Inspection Sample (IP Section 03.01) (6 Samples)
The inspectors evaluated the implementation of the fire protection program by conducting a walkdown and performing a review to verify program compliance, equipment functionality, material condition, and operational readiness of the following fire areas:
- (1) Fire Area (FA) 31A, train hot shutdown panel and auxiliary feed pump room on January 5, 2023
- (2) FA 32B, train hot shutdown panel and auxiliary feed pump room on January 11, 2023
- (3) FA 41B, screenhouse ground floor, elevation 670' on January 20, 2023
- (4) FA 41A, screenhouse cooling water pump room, elevation 695' on February 16, 2023
- (5) FA 26 D2, diesel room, elevation 695' on March 6, 2023
- (6) FA 25 D1, diesel room, elevation 695' on March 7, 2023
71111.06 - Flood Protection Measures
Flooding Sample (IP Section 03.01) (1 Sample)
- (1) The inspectors evaluated internal flooding mitigation protections in the: Unit 1 and Unit 2 auxiliary feed pump rooms on March 14, 2023.
71111.07A - Heat Exchanger/Sink Performance
Annual Review (IP Section 03.01) (1 Sample)
The inspectors evaluated readiness and performance of:
- (1) TP 1789B, "AFW [auxiliary feedwater] Pump Room Cooler Flushing, Flow Balancing, DP Monitoring, & Air Side Inspection, Train B"
71111.11Q - Licensed Operator Requalification Program and Licensed Operator Performance
Licensed Operator Performance in the Actual Plant/Main Control Room (IP Section 03.01) (1 Sample)
- (1) The inspectors observed and evaluated licensed operator performance in the control room during control room observation for flexible power operations on February 7, 2023.
Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)
- (1) The inspectors observed and evaluated licensed operator requalification simulator session as-found evaluation on January 30, 2023.
71111.12 - Maintenance Effectiveness
Maintenance Effectiveness (IP Section 03.01) (3 Samples 1 Partial)
The inspectors evaluated the effectiveness of maintenance to ensure the following structures, systems, and components (SSCs) remain capable of performing their intended function:
- (1) Work Order (WO) 700106556, "Bus 27 Work Window," on January 11, 2023 (2)fire door maintenance and WO 0010354, "Install Second Fusible Link Door #62," on January 13, 2023 (3)
(Partial)
Evaluation of bus 15 high resistance readings on March 1, 2023
- (4) CV-31652, "11 Cooling Water Strainer Backwash Valve Timing Not Meeting Acceptance Criteria," on March 9, 2023
71111.13 - Maintenance Risk Assessments and Emergent Work Control
Risk Assessment and Management Sample (IP Section 03.01) (7 Samples)
The inspectors evaluated the accuracy and completeness of risk assessments for the following planned and emergent work activities to ensure configuration changes and appropriate work controls were addressed:
- (2) Elevated airborne tritium levels inside Unit 2 containment on February 2, 2023
- (3) Risk during D5 EDG preventative maintenance window on February 7, 2023 (4)21 cooling water strainer maintenance procedure GMP ADAM-001 on January 18, 2023
- (5) Risk during 22 turbine-driven auxiliary feedwater (TDAFW) pump lube oil cooling water valve maintenance on March 3, 2023
- (6) Unplanned entry into 72-hr LCO for failure of SY-37417/SY-37418 to close on March 2, 2023
- (7) Unplanned inoperability of 121 control room chiller on March 12, 2023
71111.15 - Operability Determinations and Functionality Assessments
Operability Determination or Functionality Assessment (IP Section 03.01) (10 Samples)
The inspectors evaluated the licensee's justifications and actions associated with the following operability determinations and functionality assessments:
(1)122 spent fuel pool OOS (2)22 DDCLP level switch 16687 (3)21 motor-driven auxiliary feedwater (MDAFW) pump lube oil leak (4)21 safety injection pump inboard seal leak active (corrective action program (CAP) 501000070785)
(5)122 control room chiller purge run time >10 minutes (CAP 501000070774)
- (7) CV-31630 indicating light failure during SP 2130A
- (8) Prompt and past operability determinations for Unit 1 sump B (9)121 control room chiller purge inoperability (CAP 501000071311)
- (10) Cooling water header/D2 operability with failure of SV-37465 on March 2, 2023
71111.18 - Plant Modifications
Temporary Modifications and/or Permanent Modifications (IP Section 03.01 and/or 03.02) (2 Samples)
The inspectors evaluated the following temporary or permanent modifications:
- (1) RS-19-1, Furmanite repair and restoration non-conforming condition
- (2) FP-5-1, temporary change in support of maintenance > 90 days
71111.24 - Testing and Maintenance of Equipment Important to Risk
The inspectors evaluated the following testing and maintenance activities to verify system operability and/or functionality:
Post-Maintenance Testing (PMT) (IP Section 03.01) (3 Samples)
- (1) Post-Maintenance Testing for D5 EDG following maintenance window on February 10, 2023
- (2) WO 700107540, "PMT for 12 Safety Injection Offline Motor Test"
- (3) WO 700093987, "PMT for Cooling Tower 12 Transformer"
Surveillance Testing (IP Section 03.01) (8 Samples)
- (1) WO 700106980, "SP 2101 - 21 MD AFWP QUARTERLY FLOW TEST"
- (2) WO 700106518, "SP 2295 - D5 Diesel Generator 6 Month Fast Start Test"
- (3) SP 1106B, "Comprehensive Test," on February 2, 2023
- (5) PM 3122-10, "Cardox Preventive Maintenance," on February 28, 2023
- (6) WO 700111800, "PMT for 21 RHR Pump Offline Motor Test MSIP 3033"
- (8) SP 1342, "Neutron Flux Monitor Alignment at Reactor Power," on March 7, 2023
Inservice Testing (IST) (IP Section 03.01) (1 Sample)
- (1) SP 1151A, "Train A Cooling Water System Quarterly Test" (WO 700109442)
Diverse and Flexible Coping Strategies (FLEX) Testing (IP Section 03.02) (1 Sample)
- (1) TP 1479, "Portable 12KW Diesel Generator Quarterly Functional Test," on February 6, 2023
71114.06 - Drill Evaluation
Select Emergency Preparedness Drills and/or Training for Observation (IP Section 03.01) (1 Sample)
- (1) EP drill evaluation (w/DEP) on January 24,
OTHER ACTIVITIES - BASELINE
===71151 - Performance Indicator Verification The inspectors verified licensee performance indicators submittals listed below:
IE01: Unplanned Scrams per 7000 Critical Hours Sample (IP Section 02.01)===
- (1) Unit 1 (January 1, 2022, through December 31, 2022)
- (2) Unit 2 (January 1, 2022, through December 31, 2022)
IE03: Unplanned Power Changes per 7000 Critical Hours Sample (IP Section 02.02) (2 Samples)
- (1) Unit 1 (January 1, 2022, through December 31, 2022)
- (2) Unit 2 (January 1, 2022, through December 31, 2022)
IE04: Unplanned Scrams with Complications (USwC) Sample (IP Section 02.03) (2 Samples)
- (1) Unit 1 (January 1, 2022, through December 31, 2022)
- (2) Unit 2 (January 1, 2022, through December 31, 2022)
71152A - Annual Follow-up Problem Identification and Resolution Annual Follow-up of Selected Issues (Section 03.03)
- (1) CARDOX follow-up (CAPS 501000059308, 501000060623, 501000064175) on January 10, 2023 (2)22 DDCLP follow-up on January 30,
INSPECTION RESULTS
Observation: Annual Follow-Up of CAP 501000061742, 22 DDCL Pump 71152A The inspectors reviewed the actions taken for corrective action program (CAP) 501000061742 and 501000065653 associated with the 22 diesel-driven cooling water pump (DDCLP) and the related Green non-cited violation (NCV). CAP 501000061742 was written documenting the original issue, and CAP 501000065653 was written as a follow-up to ensure actions taken were sufficient to address all aspects of the NCV.
Licensee procedure FP-R-LIC-06 Section 5.16.2 specifies that:
"The RCL [Regulatory Compliance Lead] should review the inspection report to confirm that each violation, finding, unresolved item, insight and observation has been entered into the corrective action system in accordance with FP-PA-ARP-01.
1. The RCL SHALL initiate a new CAP for new issues, observations, and insights not
previously identified.
2. GENERATE a CAP to capture inspection report review.
a. The CAP should highlight any notable differences in characterization from issue descriptions that were initiated during the inspection, including observations.
b. The CAP should be cross referenced to the related CAPs that are tracking the resolution of the finding, violation, observation, etc.
c. The CAP should recommend that the RAM is the owner and that the issue owner for each finding/violation perform an evaluation of the information presented in the inspection report against existing requests to identify differences in characterization/description that would require changes to the completed causal evaluation, extent of condition, extent of cause, etc.; or additional corrective action.
d. The issue owner SHALL generate a new CAP for differences that require changes or additional corrective action."
Per step c above, the objective of the review is to to identify differences in characterization/description that would require changes to the completed causal evaluation, extent of condition, extent of cause, etc.; or additional corrective action. However, the review performed and documented in CAP 501000065653 appears to focus on the licensee's viewpoint that the violation they received was an error on the part of the NRC. The licensee credited actions taken months after the issue of concern was identified as justification of why a violation had not been warranted. Inspectors could find no evaluation of the actions taken compared to the violation received to ensure all aspects of the violation were addressed.
Thus, it appears the intent of the procedure was not met. However, the corrective actions taken were sufficient.
Although this comparison could not be located, inspectors reviewed the actions taken associated with CAP 501000061742, as well as additional actions taken which were not documented in the CAP and did not identify any additional actions needed. Following discussion with licensee management, the licensee concurred with the inspectors' assessment and initiated CAP 501000070556 Lessons Learned on Recent NRC Violations, to look at the recent NRC violations pertaining to the 22 DDCLP and the CO2 system for any lessons learned. The inspectors did not identify any more than minor findings or violations during this review.
Observation: Annual Follow-Up of CAP 501000064651, CARDOX System 71152A The inspectors performed a 71152A Problem Identification and Resolution follow-up sample on corrective action programs (CAPs) 501000064651 and 501000068866. The original issue (CAP 501000064651) was associated with NRC questions on the licensees CARDOX (CO2 flooding) system. Based upon the responses to the questions, the NRC determined that the licensee had failed to maintain compliance with their licensing basis, for both their original and then their National Fire Protection Association (NFPA) 805 licensing basis requirements.
The licensee is required to comply with NFPA 12 (1972 Edition) for their CARDOX system. In their docketed license application (and subsequent license amendment request [LAR]) the licensee identified that their compliance with NFPA 12 was based upon the system being able to establish a 50 percent CO2 concentration, and to maintain that concentration for 15 minutes, with the ability to extend that time to 30 minutes with a second shot of CO2 from the system (double shot capacity). The NRC approved those requests based upon the information provided. Thus, the 50 percent for 15 minutes with a double shot capacity became part of the licensee's licensing basis. The licensee determined that they could maintain the 50 percent concentration for 11 minutes, at high differential pressures as documented in CAP 501000064651. The NRC issued the licensee a Green NCV for their failure to maintain compliance with their licensing basis.
CAP 501000068866 was written following issuance of the NRC report documenting the NCV. Licensee procedure FP-R-LIC-06 Section 5.16.2 specifies in part that:
The CAP should recommend that the RAM is the owner and that the issue owner for each finding/violation perform an evaluation of the information presented in the inspection report against existing requests to identify differences in characterization/description that would require changes to the completed causal evaluation, extent of condition, extent of cause, etc.; or additional corrective action.
The intent of CAP 501000068866 was to perform an evaluation of the report and NCV to ensure actions were in place to correct all aspects of the violation received. However, the response documented in CAP 501000068866 was that the licensee disagreed with the NRCs interpretation of their licensing basis. The licensee indicated that NFPA 12 does not specify a required hold time; therefore, they were in compliance with NFPA 12. The NRC acknowledges that a specific hold time is not established in NFPA 12, however there are specific criteria that the licensee is required to be able to meet. NFPA 12 specifies that, 2232. For deep seated fires, the required extinguishing concentration must be maintained for a sufficient period of time to allow the smoldering to be extinguished and the material to cool to a point at which reignition will not occur when the inert atmosphere is dissipated.
Although the licensee indicated that they comply with NFPA 12 (1972), they do not provide any technical justification for how they meet the above criteria. The NRC determined that the licensees compliance is based upon their docketed license application (and subsequent LAR) commitment and the safety evaluation report documenting NRC approval.
Because the licensee believed they were in compliance with their licensing basis, actions taken to resolve the issue were based upon this belief. The licensee made changes to several of their fire protection documents which they screened as being minor changes to remove references to outdated information.
The inspectors determined the licensees actions to remove requirements from licensee procedures and their fire protection program documentation were not consistent with the requirements for implementing a change to their licensing basis documents. Although the licensee is authorized to make changes to their fire protection licensing basis without prior NRC approval, this may be considered to be more than a minor change, and the appropriate process should be followed. The inspectors determined that based upon the actions taken, the licensee could potentially consider additional reevaluation.
Following discussion with licensee management, the licensee concurred with the inspectors' assessment and initiated CAP 501000070556 Lessons Learned on Recent NRC Violations, to look at the recent NRC violations pertaining to the 22 DDCLP and the CO2 System for any lessons learned.
The inspectors determined that the initial actions taken for CAP 501000068866 did not appear to meet the intent of the CAP or the procedural requirements of FP-R-LIC-06, but since the CAP was still open there would have been additional opportunities for the licensee to identify and correct the condition without NRC intervention. Based upon discussions with the licensee and initiation of CAPs 501000070556 and 501000070955, the inspectors determined that the licensee had entered the condition into their CAP to drive towards resolution. The inspectors did not identify any more than minor findings or violations during this review.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
On April 17, 2023, the inspectors presented the integrated inspection results to Timothy Borgen, Plant Manager, and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Procedures
TP 1637
Winter Plant Operation
Work Orders
TP 1637 Annual Winter Plant Operation
10/09/2022
Procedures
C1.1.20.6-1
Unit 1 480V System Switches and Indication Checklist
Miscellaneous
NFPA NO. 80-
1968
Standard for Fire Doors and Windows
07/12/1068
Procedures
TP 1789B
AFW Pump Room Cooler Flushing, Flow Balancing, DP
Monitoring, & Air Side Inspection, Train B
Work Orders
TP 1789B - AFWP Room Cooler Flushing
01/18/2023
501000066741
Minor Aging Issues with ISFSI Casks
09/27/2022
501000066794
NOS: Annual Submittal Letter Not in DRMS
09/28/2022
501000068192
SP Not Performed On 11 Aux Bldg Exh Fan
11/04/2022
501000068212
SP Not Performed On 22 Aux Bldg MUAH
11/05/2022
501000069619
FP-5-1 Needs T-MOD Tag
01/03/2023
501000069767
16027 OOT During ICPM 1-416
01/10/2023
501000069779
16026 OOT During ICPM 1-416
01/10/2023
Corrective Action
Documents
501000070539
Pitting on Coolant Piping
2/08/2023
608000000970
Bus 15 Contact Resistance Evaluation
2/24/2023
Engineering
Evaluations
608000000970
Bus 15 Contact Resistance Evaluation
2/24/2023
ANSI/NETA MTS-
2019
Standard for Maintenance Testing Specifications for
Electrical Power Equipment and Systems
2019
EPRI 2018
Technical Report
Reliability and Maintenance of Bolted Busbar Connections
May 2018
EPRI 2019
Technical Report
Nuclear Maintenance Applications Center: Bolted Joint
Fundamentals, Revision 1
November
2019
EPRI Report
Electrical Connector Application Guidelines, Final Report
December
2002
EPRI Technical
Report,
Deliverable
Number:
3002011484
Reliability and Maintenance of Bolted Busbar Connections
May 2018
Miscellaneous
MS 3.2.1.9-1D
Recommended Maintenance & Surveillance 5HK, 7.5HK &
2/23/1993
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
HK Switchgear Equipment
QF0739, Request
Number 240,
Revision 1
EPRI TR 104213, Section 7 - Temperature Limitations
Associated with Torque Tables
11/16/2022
QF0739, Request
Number 240,
Revision 2
EPRI TR 104213, Section 7 - Temperature Limitations
Associated with Torque Tables
11/16/2022
QF0739, Request
Number 242,
Revision 1
Engineering Evaluation 608000000896 Says Current Heat
Load is Acceptable, However Maintenance is Performed
Every 4 Years
11/16/2022
QF0739, Request
Number 242,
Revision 2
Engineering Evaluation 608000000896 Says Current Heat
Load is Acceptable, However Maintenance is Performed
Every 4 Years
11/16/2022
QF0739; Request
Number: 242,
Revision 2
The Engineering Evaluation 608000000896 Says the
Current Heat Load Is Acceptable, However the Maintenance
Is Performed Every 4 Years.
11/16/2022
Technical Report
Xcel Prairie Island Switchgear Bolted Bus Bar Connection
2/22/2023
Procedures
H65.2.12
Electrical Cables & Connections not Subject to 10 CFR 50.49 Environmental Qualification Requirements Aging
Management Program
4kV SFGDS Bus Thermography 3rd Qtr
09/22/2020
4kV SFGDS Bus Thermography (3rd Qtr)
09/22/2020
Work Orders
4kV SFGDS Bus Thermography 3Q
2/13/2019
501000070669
Standards Not Utilized/Adhered To
2/13/2023
501000070772
Unit 1 Containment Pressure Rising
2/19/2023
501000070774
2 Cont Room Chiller Purge Run Time >10
2/17/2023
Corrective Action
Documents
501000070785
SI Pump Inboard Seal Leak Active
2/19/2023
Calculations
Calculation No.:
2005-11126
Containment Sump Debris Size Distribution and Filter
Efficiency
501000066521
Temp Drop on Cylinder Exhaust Temp 7
09/19/2022
501000070651
Document Bus 15 Lessons Learned
2/12/2023
501000070659
44500-0203 Not Lit During SP 2130A
2/13/2023
501000070820
U2 PORV Limiting Stroke Time Calculation
2/20/2023
Corrective Action
Documents
501000071174
CV-31652 11 CLG WTR STRNR BCKWSH Timing
03/08/2023
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
GSI-191 Analysis to Support Final GL 2004-02 Supplemental
Response
03/04/2008
Engineering
Changes
GSI-191: Refined Analysis of SI Pump and RHR Pump Seals
05/14/2008
2005-11126
Containment Sump Debris Size Distribution and Filter
Efficiency
608000000970
Bus 15 Contact Resistance Evaluation
2/24/2023
608000000970
Bus 15 Contact Resistance Evaluation
2/24/2023
ENG-ME-334
Sect XI Design Basis Valve Limiting Stroke Times
Engineering
Evaluations
ENG-ME-654
Evaluation of Downstream Effects-Emergency Core Cooling
Systems (ECCS)
ANSI/NETA MTS-
2019
Standard for Maintenance Testing Specifications for
Electrical Power Equipment and Systems
2019
ANSI/NETA MTS-
2019
Standard for Maintenance Testing Specifications for
Electrical Power Equipment and Systems
2019
CV-31652
Prairie Island Inservice Testing Valve Data Sheets - Unit 1;
Strainer Backwash
Document 2005-
01780
GSI-191 Downstream Effects - Flow Clearances
EPRI 2018
Technical Report
Reliability and Maintenance of Bolted Busbar Connections
May 2018
EPRI 2019
Technical Report
Nuclear Maintenance Applications Center: Bolted Joint
Fundamentals, Revision 1
November
2019
EPRI Report
Electrical Connector Application Guidelines, Final Report
December
2002
IEC 62271-1
International Electrotechnical Commission - High-Voltage
Switchgear and Control Gear
Informational
Report
Bus Bar Bolted Connections Reliability and Testing
21
MS 3.2.1.9-1D
Recommended Maintenance & Surveillance 5HK, 7.5HK &
15HK Switchgear Equipment
2/23/1993
QF0739, Request
Number 240
EPRI TR 104213, Section 7 - Temperature Limitations
Associated with Torque Tables
11/16/2022
Miscellaneous
QF0739, Request
Number 240,
EPRI TR 104213, Section 7 - Temperature Limitations
Associated with Torque Tables
11/16/2022
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Revision 2
QF0739, Request
Number 242
Engineering Evaluation 608000000896 Says Current Heat
Load Is Acceptable, However Maintenance Is Performed
Every 4 Years
11/16/2022
QF0739, Request
Number 242,
Revision 2
Engineering Evaluation 608000000896 Says Current Heat
Load Is Acceptable, However Maintenance Is Performed
Every 4 Years
11/16/2022
QF0739, Request
Number 299,
501000071181
If the Drill Bit Evaluated in QIM 501000070903 Were to
Bypass the Strainer, Could the Length of the Bit Cause an
Internal Blockage Concern Which Has Not Yet Been
Previously Evaluated?
03/02/2023
Technical Report
IEEE Standard for Metal-Clad Switchgear
2015
Technical Report
Xcel Prairie Island Switchgear Bolted Bus Bar Connection
2/22/2023
FP-OP-OL-01
Operability
FP-WM-SP-01
Fleet Surveillance Test Program
H10.1
ASME Inservice Testing Program
SP 1151A
Train A Cooling Water System Quarterly Test
Procedures
SP 2130A
Train A Containment Vacuum Breakers Quarterly Tests
4kV SFGDS Bus Thermography (3rd Qtr)
09/22/2020
3kV SFGDS Bus Thermography 3Q
2/13/2019
Work Orders
4kV SFGDS Bus Thermography 3Q
04/10/2019
Miscellaneous
QF0739, Request
Number 288
Based on the as Left Condition From WO 9904812, Repair
Leak on RS-19-1, Was the Valve Returned to the Original As
Designed Configuration?
01/06/2023
Miscellaneous
QF0739, Request
Number 293
Outdated Calibration Stickers on Power Cables for 121, 122,
23, and 124 Portable 12kW Diesel Generator
2/10/2023
2M-CL-3002-2-22
Isolation and Restoration of 22 Diesel Cooling Water Pump
2M-CL-3002-2-22
Isolation and Restoration of 22 Diesel Cooling Water Pump
ICPM 2-500D
D5 Speed Sensor and Magnetic Pickup Signal Selector
(MPU) Calibration Check (D5 Outage)
MSIP 3033
Off-Line Motor Testing Using the PDMA Motor Tester
PM 3122-3
Shield Bldg, Category 1 Vent Zone, Fire and Security Door
Inspection
Procedures
SP 1106B
Diesel Cooling Water Pump Monthly Test
106
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
SP 2130A
Train A Containment Vacuum Breakers Quarterly Tests
SP 2295
D5 Diesel Generator 6 Month Fast Start Test
SP 2295
D5 Diesel Generator 6 Month Fast Start Test
SP 2307
D6 Diesel Generator 6 Month Fast Start Test
TP 1725
Containment & Aux Building Chiller Inspection
PMT/RTS IR-E1/SAP-B/D5
08/25/2022
PMT/RTS IR-E1/SAP-B/D5
08/25/2022
PM 3002-10-22-22 DDCLP MAJOR MAINT
10/23/2019
PM 3002-10-22 22 DDCLP Major Maint
10/23/2019
Burnish D5 Relays
03/10/2023
PMT/RTS IT/FDTL/D5 RELAY
07/16/2021
CT12 XFMR Replacement
03/20/2023
CT12 SFMR Replacement
03/20/2023
PMT/RTS Replacement Relays
01/27/2023
D5 ENG 1 Fuel Oil Feed Press Low Alarm
2/10/2023
Cal D5 Mag Pick Up MPU and Speed Sensor
2/10/2023
CNMT/AUX BLDG CHLR INSP
2/15/2023
01/01/2023
Shield Bldg Cat 1 Vent Zone & Fire
01/28/2023
SP2130A TRN A CTMT Vacuum BKR QTR
03/02/2023
SP 1106B 22 DIESEL CL PMP MNTHLY
03/08/2023
03/13/2023
03/23/2023
03/31/2023
Work Orders
Offline Test - MTR 25-7(21 RHR PMP)
05/16/2023
501000066542
CO2 Licensing Basis
09/18/2022
Corrective Action
Documents
501000070556
Lessons Learned on Recent NRC Violations
2/08/2023
Engineering
Changes
60100004055
CO2 System Update to Calculation Criteria and 2nd Shot
Requirement
71152A
Miscellaneous
FPEE-11-038
Code Compliance Review; NFPA 12, Standard on Carbon
Dioxide Extinguishing Systems, 1972; Relay and Computer
Room, Fire Area 18
2