IR 05000528/2021014
| ML21194A067 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 07/14/2021 |
| From: | David Proulx Division of Reactor Safety IV |
| To: | Lacal M Arizona Public Service Co |
| References | |
| IR 2021014 | |
| Download: ML21194A067 (14) | |
Text
July 14, 2021
SUBJECT:
PALO VERDE NUCLEAR GENERATING STATION - DESIGN BASIS ASSURANCE INSPECTION (PROGRAMS) INSPECTION REPORT 05000528/2021014 AND 05000529/2021014 AND 05000530/2021014
Dear Ms. M. Lacal:
On June 9, 2021, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Palo Verde Nuclear Generating Station and discussed the results of this inspection with you 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, David L. Digitally signed by David L. Proulx Proulx Date: 2021.07.14 10:53:14 -05'00'
David Proulx, Acting Branch Chief Engineering Branch 1 Division of Reactor Safety Docket Nos. 05000528 and 05000529 and 05000530 License Nos. NPF-41 and NPF-51 and NPF-74
Enclosure:
As stated
Inspection Report
Docket Numbers: 05000528, 05000529 and 05000530 License Numbers: NPF-41, NPF-51 and NPF-74 Report Numbers: 05000528/2021014, 05000529/2021014 and 05000530/2021014 Enterprise Identifier: I-2021-014-0000 Licensee: Arizona Public Service Company Facility: Palo Verde Nuclear Generating Station Location: Tonopah, AZ Inspection Dates: May 10, 2021 to May 28, 2021 Inspectors: J. Braisted, Reactor Inspector W. Cullum, Reactor Inspector R. Kopriva, Senior Reactor Inspector Approved By: David Proulx, Acting Branch Chief Engineering Branch 1 Division of Reactor Safety Enclosure
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a design basis assurance inspection (programs) inspection at Palo Verde Nuclear Generating Station, 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.
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 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.
Starting on March 20, 2020, in response to the National Emergency declared by the President of the United States on the public health risks of the coronavirus (COVID-19), inspectors were directed to begin telework. In addition, regional baseline inspections were evaluated to determine if all or a portion of the objectives and requirements stated in the IP could be performed remotely. If the inspections could be performed remotely, they were conducted per the applicable IP. In some cases, portions of an IP were completed remotely and on site. The inspections documented below met the objectives and requirements for completion of the IP.
REACTOR SAFETY
71111.21N.02 - Design-Basis Capability of Power-Operated Valves Under 10 CFR 50.55a Requirements POV Review (IP Section 03)
The inspectors:
a. Determined whether the sampled POVs are being tested and maintained in accordance with NRC regulations along with the licensees commitments and/or licensing bases.
b. Determined whether the sampled POVs are capable of performing their design-basis functions.
c. Determined whether testing of the sampled POVs is adequate to demonstrate the capability of the POVs to perform their safety functions under design-basis conditions.
d. Evaluated maintenance activities including a walkdown of the sampled POVs (if accessible).
- (1) Unit 1 Motor-Driven Auxiliary Feedwater Pump to Steam Generator 1 Flow Control Valve 1JAFBHV0030
- (2) Unit 1 Nuclear Cooling Water Supply to Reactor Coolant Pump Cooler Outboard Containment Isolation Valve 1JNCAUV0402
- (3) Unit 1 Steam Generator 1 Steam Supply to Auxiliary Feed Pump Turbine Isolation Valve (Penetration 2) 1JSGAUV0134
- (4) Unit 2 Chemical Volume and Control System Letdown from Regenerative Heat Exchanger Outboard Containment Isolation Valve (Penetration 40) 2JCHBUV0523
- (5) Unit 2 Refueling Water Tank Outlet Isolation Valve 2JCHBHV0530
- (6) Unit 2 Safety Injection System Containment Sump to Safety Injection Pump Suction Inboard Containment Isolation Valve (Penetration 24) 2JSIBUV0675
- (7) Unit 3 Auxiliary Feedwater Turbine Driven Auxiliary Feedwater Pump to Steam Generator 1 Isolation Valve (Penetration 75) 3JAFCUV0036
- (8) Unit 3 Motor-Driven Auxiliary Feedwater Pump to Steam Generator 2 Isolation Valve 3JAFBUV0035
- (9) Unit 1 Main Steam, Steam Generator 2, Economizer Feedwater Downstream Isolation Valve (Penetration 10) 1JSGBUV0137
- (10) Unit 2 Chemical Volume and Control System Auxiliary Pressurizer Spray Valve 2JCHAHV0205
- (11) Unit 2 Auxiliary Feedwater Steam Generator 2 Steam Supply to Auxiliary Feed Pump Turbine Isolation Valve (Penetration 3) 2JSGAUV0138
- (12) Unit 3 Safety Injection Containment Spray Control Valve and Outboard Containment Isolation Valve (Penetration 21) 3JSIAUV0672
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On June 9, 2021, the inspectors presented the Exit Meeting inspection results to Ms. M.
Lacal, Vice President / Chief Nuclear Officer and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection Type Designation Description or Title Revision or
Procedure Date
71111.21N.02 Calculations 01-EC-MA-0221 AC Distribution 14
01-EC-PK-0207 DC Battery Sizing and Minimum Voltage 9
01-J-ZZI-0004 Controlled Motor Operator Database 33
2-EC-MA-0221 AC Distribution 14
2-J-ZZI-0006 Controlled - Air Operated Valve Setpoint Database 15
03-EC-MA-0221 AC Distribution 12
03-EC-PK-0207 DC Battery Sizing and Minimum Voltage 8
03-J-ZZI-0004 Controlled Motor Operator Data Base 33
13-JC-CH-0102 Air Operated Valve (AOV) Setting Calculation for Letdown 000
to Regen HX Isolation Valves and Regenerative
Heat Exchanger Outlet Isolation Valves
13-JC-ZZ-0300 Motor Operated Valve Thrust and Torque Calculation for 1
13JAFBUV0034 and 13JAFBUV0035
13-JC-ZZ-0301 Motor Operated Valve Thrust and Torque Calculation for 2
13JAFCUV0036 and
13JAFAUV0037
13-JC-ZZ-0304 Motor Operated Valve Thrust and Torque Calculation for 1
13JCHBHV0530 and 13JCHBHV0531
13-JC-ZZ-0306 Motor Operated Valve Thrust and Torque Calculation for 0
13JSGAUV0134 and 13JSGAUV0138
13-JC-ZZ-0311 Motor Operated Valve Thrust and Torque Calculation for 3
13JSIBUV0671 and 13JSIAUV0672
13-JC-ZZ-0400 Motor Operated Valve Thrust and Torque Calculation for 1
13JAFBHV0030 and 13JAFBHV0031
13-JC-ZZ-0503 Motor Operated Valve Torque Calculation for 1
13JNCBUV0401, 13JNCAUV0402 and 13JNCBUV0403
13-JS-A41 Technical Study to Support G.L. 89-10 MOV Program 04/20/2007
13-MC-AF-0401 AFW System - MOV Maximum Differential Pressure 5
13-MC-AF-0800 Auxiliary Feedwater ESF Function Response Times 8
13-MC-CH-0604 Maximum Differential Pressure Calculation for Chemical 0
Volume Control System Air-
Operated Valves (AOVs) 13JCHAUV0506,
Inspection Type Designation Description or Title Revision or
Procedure Date
13JCHAUV0516, 13JCHBUV0505,
13JCHBUV0515, and 13JCHBUV0523
13-MC-CH-0604 Maximum Differential Pressure Calculation for Chemical 0
Volume Control System Air-
Operated Valves (AOVs) 13JCHAUV0506,
13JCHAUV0516, 13JCHBUV0505,
13JCHBUV0515, and 13JCHBUV0523.
13-MC-CH-326 Stress Evaluation of Air-Operated Valves 1
13-MC-NC-301 MOV Program Support - Valves UV-401, UV-402, and UV- 4
403
13-MC-SG-0811 Maximum Differential Pressure Across MOVs SG-134/138 3
and AF-54
13-MC-SG-0811 Maximum Differential Pressure Across MOVs SG-134/138 3
and AF-54
13-MC-XM-0500 MOV Bolt Torque Calculation 11
13-MC-ZZ-0216 Air Operated Valve Bench Set Calculation 7
13-MC-ZZ-0217 Gate Valve Open Thrust Required During Potential 7
Pressure Locking Conditions
13-MS-B007 Evaluation of Dynamic Performance Parameters for 11/12/2010
Generic Letter GL 89-10
13-MS-B075 Motor Operated Valve (MOV) Valve Factors 0
13-MS-B076 Motor Operated Valve (MOV) Rate of Loading 0
13-VTD-A391- Anchor Darling FWIV and MSIV Accumulator Minimum 1
20 and Maximum Nitrogen Precharge Pressures Based on
Accumulator Temperature
J601A-00246 CCI MOV Weak-Link and Thrust Analysis 3
J605-00106 Stress Report for 10" NXL W/SMB0005-H1BC 5
J605-00201 Engineering Analysis of Torque Requirements for Butterfly 3
Valves
M234A-00157 Stress Analysis End Load Calculations for Gate Valve 0
N001-0701- A Maximum Line/DP Cases for CVCS 3
00174
N001-2101- Thrust, Torque and Limiting Component Report, Carbon 10
00094 Steel & Stainless Steel Motor Operated Gate & Globe
Inspection Type Designation Description or Title Revision or
Procedure Date
Valves
P221B-00609 Valve Data Sheets and Maximum Thrust Analysis for 6
Anchor/Darling Valves
P221B-00609 Valve Data Sheets and Maximum Thrust Analysis 6
P221B-00657 Analysis of Retrofit Trim 3
P221B-00657 Anchor Darling Analysis of Retrofit Trim (Weak link) B
Corrective Action Condition Report 21-02176, 16-04430, 17-04425, 18-07812, 18-17231, 19-
Documents (CR) 05506, 20-08224, 20-14853, 21-02537, 20-04719,
21,03579, 18-03063, 18-05620, 16-16105, 19-06087
Corrective Action Condition Report 21-06133, 21-06365, 21-06625
Documents (CR)
Resulting from
Inspection
Drawings 01-M-AFP-001 Auxiliary-Feedwater System 45
01-M-AFP-001 P & I Diagram, Auxiliary - Feedwater System 45
01-M-NCP-003 Nuclear Cooling Water System 13
01-M-SGP-001 P & I Diagram - Main Steam System 72
01-N001-1104- 24 Inch Class 150 Wafer Valve Assembly SI-673, 675 V- 10
282 CE-16690 30JN82
01-N001-1104- 24" CLASS 150 WAFER 10
282 VALVE ASSY SI-673,675
V-CE-16690 30JN82
2-M-CHP-001 P & I Diagram - Chemical and Volume Control System 38
2-M-SIP-001 P & I Diagram - Safety Injection & Shutdown Cooling 55
System
2-N001-1104- 24 inch Class 150 Wafer Valve Assembly SI-UV-673 and 8
274 675
2-N001-1104- 24" CLASS 150 WAFER VLV ASSY. SI-UV-673 &675 8
274
03-M-AFP-001 P & I Diagram - Auxiliary-Feedwater System 31
03-N001-1104- 24 Inch Class 150 Wafer Valve Assembly SI-UV-673 and 8
275 675
08-E-CHB-029 RWT to Train Safety Injection System Valve 2J-CHA-HV- 3
531
Inspection Type Designation Description or Title Revision or
Procedure Date
13-10407- 6 inch - 900 pound, Gate Valve, Pressure Seal-Butt Wled N
P221B-137 Ends, Double Packing- SMB-1 Motor Operator
13-M234A-00047 Feed Water Isolation Valve With A/DV Hydraulic Actuator 16
13-N001-1104- 2 BODY 60 ACTUATOR 667 DBQ DIAPHRAGM 12
00006 ACTUATED CONTROL VALVE
M234A-00156 Flowserve Corporation Anchor Darling Hydraulic Manifold 0
Assembly Exploded View
P221B-00137 6 inch 900 pound Gate Valve Cast Stain Steel M
P221B-00137 6 Inch 900 Pound Gate Valve - Cast Stain Steel N
Engineering 2005-00965 The Purpose of This EDC Is to Provide New Setpoint 10/10/2008
Changes Limits for the MOV Actuator Open Torque Switch Bypass
Limit Switch for MOV 1JAFBHV0030
2006-01122 Update Documents to Reflect the Rewiring of the Actuator 03/08/2007
to Disconnect the Torque Switch on Valve 1JNCAUV0402
2009-01216 Modify Duration of Close Torque Switch Bypass to 12/17/2010
Approximately 98% Of the Stroke for 1JSIAHV0698
2009-01225 Modify duration of close torque switch bypass to 3
approximately 98% of the stroke for valves
1/2/3JAFBUV0034,
1/2/3JAFBUV0035, 1/2/3JAFCUV0036,
1/2/3JAFAUV0037, 1/2/3JSIAHV0698, 1/2/3JSIBHV0699,
1/2/3JCHNUV0501
2011-00261 Modification to Prevent Pressure Locking of High Risk Unit 04/20/2012
AF Motor Operated Valves (AF-35)
2011-00522 MOV Thrust, Torque, and Actuator Sizing Calculation 13- 2
JC-ZZ-0201 was replaced with a series of calculations
known as the
MIDAS Calculations as defined in EDC 2011-00139, and
13-JC-ZZ-0201 is referenced in various AF, CT, and WC
Calculations. ACTs 3637913, 3637878, and 3638195 track
the impact to update the references associated with the
WC Calculations, respectively. This PO EDC implements
the updates to these calculations.
Inspection Type Designation Description or Title Revision or
Procedure Date
2012-00390 The Purpose of This Paper Only Change Is to Address 06/15/2012
CRDR 4030986 and CRAI 4030988
2012-00390 In CRDR 4030986, the original intent of the pressure 06/15/2012
locking calculation, 13-MC-ZZ-0217, was to control the
required opening force by limiting the peak cracking value
for pressure locking susceptible valves
2017-00382 Update Calculation 13-JC-ZZ-0503 to Incorporate 1
Voltages From 13-EC-MA-0221 per AI 09-00197-068 and
EWR 17-04348-001
Miscellaneous 13-J-083-080 Valve Data Sheet 0
13-JN021-A043- A-C/D-C Motor Performance Curves 04/22/1991
13-N001-2101- Project Specification for Solenoid Operated Valves 5
34-10
13-VTD-L200- Limitorque Maintenance Update on Nuclear Qualified Limit 0
20-1 and Torque Switches
13-VTD-P340- Pratt Valves Application Procedure Forrust-Veto MP 0
0003-1 [PUB.# A-691_3].
13-VTD-P340- Pratt Valves Rubber Seat Butterfly Vales, Valve Shaft 2
O01 6-2 Packing Instructions.
3-VTD-R165- Lubrication of Anti-Friction Bearings in Reliance Electric 2
0016-2 Motors [PUS. # A-381 I-7].
AF STM System Training Manual, Volume 21, Auxiliary Feedwater 7
System (AF)
AF STM System Training Manual, Volume 21, Auxiliary Feedwater 7
System (AF)
CH DBM Chemical and Volume Control System Design Basis 26
Manual
CH STM System Training Manual, Volume 41, Chemical and 7
Volume Control System (CH)
D2014-0017 Removal of EQ Equipment in Zone ME from the EQL 06/11/2014
EEQ-L200-001 Electrical Equipment Qualification Data File, Reliance 27
Class H/RH & Class F Type LR AC Motors and Limitorque
SB/SMB/SMC Series Valve Actuators
Inspection Type Designation Description or Title Revision or
Procedure Date
EEQ-L200-001 Electrical Equipment Qualification Data File - Reliance 27
Class H/RH & Class F Type LR AC Motors and Limitorque
SB/SMB/SMC Series Valve Actuators
EEQ-L200-002 Electrical Equipment Qualification Data File - Peerless 18
Class RH 125 VDC Motor used on SB and
SMB Actuators
EEQ-L200-003 Electrical Equipment Qualification Data File - Class B, AC 16
Reliance, Electric Apparatus or Paramount Motors used
with SMB/SB or SMC-04 Valve Actuators
EEQ-T020-002 Electrical Equipment Qualification Data File - Solenoid 15
Operated Valve (SOV), 82EE-001 & 76HH Series with Soft
Seats and 98F-002 with
Hard Seats
JN021-A00043-1 A-C and D-C Motor Performance Curves. 04/19/1991
MIDAS-APS VER MIDAS-APS Verification and Validation Plan Results 1
2009.29 VVTR
NC DBM Design Basis Manual, Nuclear Cooling Water System 21
SG STM System Training Manual, Volume 9, Main Steam System 3
(SG)
SI STM System Training Manual, Volume 40, Safety Injection 4
System (SI)
VTD-A381-00004 Spare Parts Ordering Instructions for Anchor darling 2 1/2 12/28/1992
Inch and Larger Valves
VTD-A391-00003 Vendor Document: Anchor/Darling Operation- 8
Maintenance Instruction for 2 1/2" and Larger Nuclear
Service Valves [PUB. # 4162-1].
VTD-C600-0005 Vendor Document: Control Components Inc. Main 2
Feedwater Bypass Valves Maintenance Manual
VTD-F130-00017 Vendor Document: Fisher Instruction Manual For Design 3
DBQ and DBAQ Control Valves [PUB. # 1799].
VTD-F130-00070 Vender Document: Fisher Instruction Manual for Type 667 10
Diaphragm Actuator Sizes 30-76 & 87 [PUB. # 1203]
VTD-F130-00073 Vendor Document: Fisher Instruction Manual for Type 667 03
Diaphragm Actuator Sizes 80 & 100 [PUB.# 1432]
Inspection Type Designation Description or Title Revision or
Procedure Date
VTD-L200-00003 instruction and Maintenance Manual for Limitorque Type 4
SMB Valve Operators (PUB. #SMBI-82D).
VTD-L200-002I Maintenance Update on Hydraulic Lock of Limitorque 0
Valve Actuators [PUB. # 88-2].
VTD-L200-0036 Limitorque Technical Update Concerning Kalsi 0
Engineering Document # 1707-C
VTD-L200-0039 Limitorque Technical Update 92-02, Recommended 0
Spring Pack Replacement for SMB Actuators
VTD-P340-O005- Pratt Valves Bonded Seat Valves Application Procedure 0
Chemglaze Z-306 [PUB. # A-6217].
VTD-R165-0010 Vendor Document: Instruction Manual for Fractional 0
Horsepower Duty Master A-C Motors
VTD-R165-0016 Vendor Document: Lubrication of Anti-Friction Bearings in 2
Reliance Electric Motors
Procedures 39MT-9ZZ02 PM or EQ Inspection of the Limitorque SMB/SB/SMC 34
Motor Operated Valve Actuators
73DP-9XI01 Pump and Valve Inservice Testing Program 40
73DP-9ZZ12 Motor Operated Valve (MOV) Program 20
73DP-9ZZ13 Motor Operated Valve - Thrust and Torque Calculations 5
73DP-9ZZ18 Motor Operated Valve - Post Test Evaluations 7
73DP-9ZZ20 Air Operated Valve Program 14
73DP-9ZZ20-01 Air Operated Valve Thrust and Torque Calculation 0
73DP-9ZZ20-03 Air Operated Valves - Post Test Evaluations 1
73DP-9ZZ23 Final JOG MOV Verification Program Implementation 2
73ST-9AF02 Aux Feedpump AFA-P01 Trip and Throttle Valve 09/30/2020
73ST-9X134-1 Steam Supply Valves Inservice Test (AFA-P01) 12/04/2012
73ST-9XI16 Economizer FWIVs - Inservice Test 39
73ST9XI411 Stroke Timing SGAUV134/134A/138/138A in Unit 1 04/06/2019
Self- 20-16281-002 Power Operated Valve Self-Assessment 02/26/2021
Assessments 4608114 USA/STARS MOV Engineering Program Self-Assessment 03/06/2015
Work Orders Work Order (WO- 5122472, 5152588, 5182251, 4289107, 5070140,
) 4718303, 3799194, 4731181, 3084385, 4434578,
4962760, 4965375, 2855334, 4789076, 4969579,
5152723, 2840636, 5161715, 5135177, 5059533,
Inspection Type Designation Description or Title Revision or
Procedure Date
3588553, 3197094, 5151546, 4795821, 4965371,
5086895, 4732562, 4911657, 5139359, 5166757,
5197994, 4732939, 4877254, 5054804, 4866084,
4912257, 5087908, 4371624, 4965354, 3082998,
3799194, 4731181, 3289898, 3460729, 4538355,
23339, 3989910, 4648818, 4965354, 4371624,
2