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ASME OM 2015

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ASME OM – 2015: Operation and Maintenance of Nuclear Power Plants

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ASME 2015 526
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Establishes the requirements for preservice and inservice testing and examination of certain components to assess their operational readiness in light-water reactor power plants. It identifies the components subject to test or examination, responsibilities, methods, intervals, parameters to be measured and evaluated, criteria for evaluating the results, corrective action, personnel qualification, and record keeping. These requirements apply to: (a) pumps and valves that are required to perform a specific function in shutting down a reactor to the safe shutdown condition, in maintaining the safe shutdown condition, or in mitigating the consequences of an accident; (b) pressure relief devices that protect systems or portions of systems that perform one or more of these three functions; and (c) dynamic restraints (snubbers) used in systems that perform one or more of these three functions.

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PDF Pages PDF Title
4 CONTENTS
5 FOREWORD
6 PREPARATION OF TECHNICAL INQUIRIES TO THE COMMITTEE ON OPERATION AND MAINTENANCE OF NUCLEAR POWER PLANTS
8 COMMITTEE ON OPERATION AND MAINTENANCE OF NUCLEAR POWER PLANTS
10 PREFACE
12 SUMMARY OF CHANGES
16 DIVISION 1: OM CODE: SECTION IST CONTENTS
21 Subsection ISTA General Requirements
ISTA-1000 INTRODUCTION
ISTA-1100 Scope
ISTA-1200 Jurisdiction
ISTA-1300 Application
ISTA-1400 Referenced Standards and Specifications
ISTA-1500 Owner’s Responsibilities
ISTA-1600 Accessibility
22 ISTA-2000 DEFINITIONS
Table ISTA-1400-1 Referenced Standards and Specifications
23 ISTA-3000 GENERAL REQUIREMENTS
ISTA-3100 Test and Examination Program
ISTA-3200 Administrative Requirements
24 ISTA-3300 Corrective Actions
ISTA-4000 INSTRUMENTATION AND TEST EQUIPMENT
ISTA-4100 Range and Accuracy
ISTA-4200 Calibration
ISTA-9000 RECORDS AND REPORTS
ISTA-9100 Scope
ISTA-9200 Requirements
25 ISTA-9300 Retention
26 Subsection ISTB Inservice Testing of Pumps in Light-Water Reactor Nuclear Power Plants — Pre-2000 Plants
ISTB-1000 INTRODUCTION
ISTB-1100 Applicability
ISTB-1200 Exclusions
ISTB-1300 Pump Categories
ISTB-1400 Owner’s Responsibility
ISTB-2000 SUPPLEMENTAL DEFINITIONS
ISTB-3000 GENERAL TESTING REQUIREMENTS
ISTB-3100 Preservice Testing
27 ISTB-3200 Inservice Testing
ISTB-3300 Reference Values
Table ISTB-3000-1 Inservice Test Parameters
28 ISTB-3400 Frequency of Inservice Tests
ISTB-3500 Data Collection
Table ISTB-3400-1 Inservice Test Frequency
Table ISTB-3510-1 Required Instrument Accuracy
29 ISTB-5000 SPECIFIC TESTING REQUIREMENTS
ISTB-5100 Centrifugal Pumps (Except Vertical Line Shaft Centrifugal Pumps)
30 Table ISTB-5121-1 Centrifugal Pump Test Acceptance Criteria
31 ISTB-5200 Vertical Line Shaft Centrifugal Pumps
32 Table ISTB-5221-1 Vertical Line Shaft Centrifugal Pump Test Acceptance Criteria
33 ISTB-5300 Positive Displacement Pumps
Fig. ISTB-5223-1 Vibration Limits
34 Table ISTB-5321-1 Positive Displacement Pump (Except Reciprocating) Test Acceptance Criteria
35 ISTB-6000 MONITORING, ANALYSIS, AND EVALUATION
ISTB-6100 Trending
ISTB-6200 Corrective Action
Table ISTB-5321-2 Reciprocating Positive Displacement Pump Test Acceptance Criteria
36 ISTB-6300 Systematic Error
ISTB-6400 Analysis of Related Conditions
ISTB-9000 RECORDS AND REPORTS
ISTB-9100 Pump Records
ISTB-9200 Test Plans
ISTB-9300 Record of Tests
ISTB-9400 Record of Corrective Action
37 Subsection ISTC Inservice Testing of Valves in Light-Water Reactor Nuclear Power Plants
ISTC-1000 INTRODUCTION
ISTC-1100 Applicability
ISTC-1200 Exemptions
ISTC-1300 Valve Categories
ISTC-1400 Owner’s Responsibility
ISTC-2000 SUPPLEMENTAL DEFINITIONS
38 ISTC-3000 GENERAL TESTING REQUIREMENTS
ISTC-3100 Preservice Testing
ISTC-3200 Inservice Testing
ISTC-3300 Reference Values
ISTC-3500 Valve Testing Requirements
39 Table ISTC-3500-1 Inservice Test Requirements
40 ISTC-3600 Leak Testing Requirements
41 ISTC-3700 Position Verification Testing
ISTC-3800 Instrumentation
ISTC-5000 SPECIFIC TESTING REQUIREMENTS
ISTC-5100 Power-Operated Valves ( POVs)
44 ISTC-5200 Other Valves
46 ISTC-6000 MONITORING, ANALYSIS, AND EVALUATION
ISTC-9000 RECORDS AND REPORTS
ISTC-9100 Records
ISTC-9200 Test Plans
48 Subsection ISTD Preservice and Inservice Examination and Testing of Dynamic Restraints (Snubbers) in Light-Water Reactor Nuclear Power Plants
ISTD-1000 INTRODUCTION
ISTD-1100 Applicability
ISTD-1400 Owner’s Responsibility
ISTD-1500 Snubber Maintenance or Repair
ISTD-1600 Snubber Modification and Replacement
ISTD-1700 Deletions of Unacceptable Snubbers
49 ISTD-1800 Supported Component(s) or System Evaluation
ISTD-2000 DEFINITIONS
ISTD-3000 GENERAL REQUIREMENTS
ISTD-3100 General Examination Requirements
50 ISTD-3200 General Testing Requirements
ISTD-3300 General Service-Life Monitoring Requirements
ISTD-4000 SPECIFIC EXAMINATION REQUIREMENTS
ISTD-4100 Preservice Examination
51 ISTD-4200 Inservice Examination
52 ISTD-5000 SPECIFIC TESTING REQUIREMENTS
ISTD-5100 Preservice Operational Readiness Testing
Table ISTD-4252-1 Visual Examination Table
53 ISTD-5200 Inservice Operational Readiness Testing
54 ISTD-5300 The 10% Testing Sample
55 ISTD-5400 The 37 Testing Sample Plan
56 ISTD-5500 Retests of Previously Unacceptable Snubbers
ISTD-6000 SERVICE LIFE MONITORING
ISTD-6100 Predicted Service Life
ISTD-6200 Service Life Evaluation
Fig. ISTD-5431-1 The 37 Testing Sample Plan
57 ISTD-6300 Cause Determination
ISTD-6400 Additional Monitoring Requirements for Snubbers That Are Tested Without Applying a Load to the Snubber Piston Rod
ISTD-6500 Testing for Service Life Monitoring Purposes
ISTD-9000 RECORDS AND REPORTS
ISTD-9100 Snubber Records
ISTD-9200 Test Plans
ISTD-9300 Record of Tests
ISTD-9400 Record of Corrective Action
58 Subsection ISTE Risk-Informed Inservice Testing of Components in Light-Water Reactor Nuclear Power Plants
ISTE-1000 INTRODUCTION
ISTE-1100 Applicability
ISTE-1200 Alternative
ISTE-1300 General
ISTE-2000 SUPPLEMENTAL DEFINITIONS
59 ISTE-3000 GENERAL REQUIREMENTS
ISTE-3100 Implementation
ISTE-3200 Probabilistic Risk Assessment
ISTE-3300 Integrated Decision Making
60 ISTE- 3400 Evaluation of Aggregate Risk
ISTE- 3500 Feedback and Corrective Actions
ISTE-4000 SPECIFIC COMPONENT CATEGORIZATION REQUIREMENTS
ISTE-4100 Component Risk Categorization
61 ISTE-4200 Component Safety Categorization
62 ISTE-4300 Testing Strategy Formulation
ISTE-4400 Evaluation of Aggregate Risk
63 ISTE-4500 Inservice Testing Program
ISTE-5000 SPECIFIC TESTING REQUIREMENTS
ISTE-5100 Pumps
Table ISTE-5121-1 LSSC Pump Testing
64 ISTE-5200 Check Valves
ISTE-5300 Motor-Operated Valve Assemblies
ISTE-5400 Pneumatically Operated Valves
65 ISTE-6000 MONITORING, ANALYSIS, AND EVALUATION
ISTE-6100 Performance Monitoring
ISTE-6200 Feedback and Corrective Actions
ISTE-9000 RECORDS AND REPORTS
ISTE-9100 Plant Expert Panel Records
ISTE-9200 Component Records
66 Subsection ISTF Inservice Testing of Pumps in Light-Water Reactor Nuclear Power Plants — Post- 2000 Plants
ISTF-1000 INTRODUCTION
ISTF-1100 Applicability
ISTF-1200 Exclusions
ISTF-1300 Owner’s Responsibility
ISTF-2000 SUPPLEMENTAL DEFINITIONS
ISTF-3000 GENERAL TESTING REQUIREMENTS
ISTF-3100 Preservice Testing
ISTF-3200 Inservice Testing
ISTF-3300 Reference Values
67 ISTF-3400 Frequency of Inservice Tests
ISTF-3500 Data Collection
Table ISTF-3000-1 Inservice Test Parameters
68 ISTF-5000 SPECIFIC TESTING REQUIREMENTS
ISTF-5100 Centrifugal Pumps (Except Vertical Line Shaft Centrifugal Pumps)
Table ISTF-3510-1 Required Instrument Accuracy
69 ISTF-5200 Vertical Line Shaft Centrifugal Pumps
Table ISTF-5120-1 Centrifugal Pump Test Acceptance Criteria
70 ISTF-5300 Positive Displacement Pumps
Table ISTF-5220-1 Vertical Line Shaft and Centrifugal Pump Test Acceptance Criteria
71 ISTF-6000 MONITORING, ANALYSIS, AND EVALUATION
ISTF-6100 Trending
ISTF-6200 Corrective Action
ISTF-6300 Systematic Error
Table ISTF-5320-1 Positive Displacement Pump (Except Reciprocating) Test Acceptance Criteria
Table ISTF-5320-2 Reciprocating Positive Displacement Pump Test Acceptance Criteria
72 ISTF-6400 Analysis of Related Conditions
ISTF-9000 RECORDS AND REPORTS
ISTF-9100 Pump Records
ISTF-9200 Test Plans
ISTF-9300 Record of Tests
ISTF-9400 Record of Corrective Action
74 Division 1, Mandatory Appendix I Inservice Testing of Pressure Relief Devices in Light-Water Reactor Nuclear Power Plants
I-1000 GENERAL REQUIREMENTS
I-1100 Applicability
I-1200 Definitions
I-1300 Guiding Principles
76 I-1400 Instrumentation
I-2000 INTRODUCTION
I-3000 PRESSURE RELIEF DEVICE TESTING
I-3100 Testing Before Initial Installation
77 I-3200 Testing Before Initial Electric Power Generation
I-3300 Periodic Testing
78 I-3400 Disposition After Testing or Maintenance
80 I-4000 TEST METHODS
I-4100 Set-Pressure Testing
82 I-4200 Seat Tightness Testing
I-4300 Alternative Test Media
I-5000 RECORDS AND RECORD KEEPING
I-5100 Requirements
I-5200 Record of Test
I-5300 Record of Modification and Corrective Action
83 Table I-4220-1 Seat Tightness Testing Methods for Pressure Relief Devices
84 Division 1, Mandatory Appendix II Check Valve Condition Monitoring Program
II-1000 PURPOSE
II-2000 GROUPINGS
II-3000 ANALYSIS
II-4000 CONDITION-MONITORING ACTIVITIES
85 II-5000 CORRECTIVE MAINTENANCE
II-6000 DOCUMENTATION
Table II-4000-1 Maximum Intervals
86 Division 1, Mandatory Appendix III Preservice and Inservice Testing of Active Electric Motor-Operated Valve Assemblies in Light-Water Reactor Power Plants
III-1000 INTRODUCTION
III-1100 Applicability
III-1200 Scope
III-2000 SUPPLEMENTAL DEFINITIONS
III-3000 GENERAL TESTING REQUIREMENTS
III-3100 Design Basis Verification Test
III-3200 Preservice Test
87 III-3300 Inservice Test
III-3400 Effect of MOV Replacement, Repair, or Maintenance
III-3500 Grouping of MOVs for Inservice Testing
III-3600 MOV Exercising Requirements
III-3700 Risk-Informed MOV Inservice Testing
88 III-5000 TEST METHODS
III-5100 Test Prerequisites
III-5200 Test Conditions
III-5300 Limits and Precautions
III-5400 Test Documents
III-5500 Test Parameters
III-6000 ANALYSIS AND EVALUATION OF DATA
III-6100 Acceptance Criteria
89 III-6200 Analysis of Data
III-6300 Evaluation of Data
III-6400 Determination of MOV Functional Margin
III-6500 Corrective Action
90 III-9000 RECORDS AND REPORTS
III-9100 Test Information
III-9200 Documentation of Analysis and Evaluation of Data
92 Division 1, Mandatory Appendix V Pump Periodic Verification Test Program
V-1000 PURPOSE
V-2000 DEFINITIONS
V-3000 GENERAL REQUIREMENTS
93 Division 1, Nonmandatory Appendix A Preparation of Test Plans
A-1000 PURPOSE
A-2000 TEST PLAN CONTENTS
A-2100 Background and Introduction
A-2200 Summary of Changes in Updated Test Plans
A-2300 Applicable Documents
A-2400 Code Subsections
A-2500 Detailed Contents
A-3000 SUBSTITUTE TESTS AND EXAMINATIONS
A-3100 General
94 A-3200 Justification of Substitute Tests and Examinations
95 Division 1, Supplement to Nonmandatory Appendix A
AS-1000 SUPPLEMENT 1: INFORMATION FOR ISTB PUMP TEST TABLES
AS-2000 SUPPLEMENT 2: INFORMATION FOR ISTC VALVE TEST TABLES
AS-3000 SUPPLEMENT 3: INFORMATION FOR ISTD DYNAMIC RESTRAINT (SNUBBER) TABLES
96 Division 1, Nonmandatory Appendix B Dynamic Restraint Examination Checklist Items
B-1000 PURPOSE
B-2000 EXAMPLES FOR PRESERVICE AND INSERVICE
B-3000 EXAMPLES FOR PRESERVICE ONLY
97 Division 1, Nonmandatory Appendix C Dynamic Restraint Design and Operating Information
C-1000 PURPOSE
C-2000 DESIGN AND OPERATING ITEMS
98 Division 1, Nonmandatory Appendix D Comparison of Sampling Plans for Inservice Testing of Dynamic Restraints
D-1000 PURPOSE
D-2000 DESCRIPTION OF THE SAMPLING PLANS
D-2100 The 37 Plan
D-2200 The 10% Plan
D-3000 COMPARISON OF SAMPLING PLANS
D-3100 Up to 370 Snubbers
D-3200 Above 370 Snubbers
99 Division 1, Nonmandatory Appendix E Flowcharts for 10% and 37 Snubber Testing Plans
E-1000 PURPOSE
100 Fig. E-1000-1 Flowchart for 10% Snubber Testing Plan (ISTD- 5300)
101 Fig. E-1000-2 Flowchart for 37 Snubber Testing Plan (ISTD- 5400)
102 Division 1, Nonmandatory Appendix F Dynamic Restraints (Snubbers) Service Life Monitoring Methods
F-1000 PURPOSE
F-2000 PREDICTED SERVICE LIFE
F-2100 Manufacturer Recommendations
F-2200 Design Review
F-3000 SERVICE LIFE REEVALUATION
F-3100 Knowledge of the Operating Environment
F-3200 Knowledge of Operating Environment Effects
103 F-3300 Cause Evaluation of Degraded or Failed Snubbers
F-4000 SHORTENED SERVICE LIFE
F-5000 SERVICE LIFE EXTENSION
F-6000 SEPARATE SERVICE LIFE POPULATIONS
104 Division 1, Nonmandatory Appendix G Application of Table ISTD-4252-1, Snubber Visual Examination
G-1000 PURPOSE
G-2000 ASSUMPTIONS
G-3000 CASE 1: EXAMINE ACCESSIBLE AND INACCESSIBLE SNUBBERS JOINTLY
G-3100 Application of Column A
G-3200 Application of Column B
G-3300 Application of Less Than or Equal to Column C and Recovery
G-3400 Application of Table When Number Exceeds Column C
105 G-4000 CASE 2: EXAMINE ACCESSIBLE AND INACCESSIBLE SNUBBERS SEPARATELY
G-4100 Determine the Values From Columns A Through C
G-4200 Determine Subsequent Interval Separately
G-4300 Recombining Categories Into One Population
106 Division 1, Nonmandatory Appendix H Test Parameters and Methods
H-1000 PURPOSE
H-2000 TEST VARIABLES
H-3000 TEST PARAMETER MEASUREMENT
H-3100 Drag Force Measurement
H-3200 Activation Measurement
H-3300 Release Rate Measurement
H-4000 GENERAL TESTING CONSIDERATIONS
107 H-4100 Drag Test Velocity
H-4200 Test Force
H-4300 Velocity Ramp Rate
H-4400 Data Recording
H-4500 Verification of Test Results
108 Division 1, Nonmandatory Appendix J Check Valve Testing Following Valve Reassembly
J-1000 PURPOSE
J-2000 POSTDISASSEMBLY TEST RECOMMENDATIONS
J-3000 TEST MATRIX
Table J-2000-1 Check Valve Test Matrix
109 Division 1, Nonmandatory Appendix K Sample List of Component Deterministic Considerations
K- 1000 PURPOSE
K- 2000 SAMPLE DETERMINISTIC CONSIDERATIONS
K- 2100 Design Basis Analysis
K- 2200 Radioactive Material Release Limit
K- 2300 Maintenance Reliability
K- 2400 Effect of Component Failure on System Operational Readiness
K- 2500 Other Deterministic Considerations
110 Division 1, Nonmandatory Appendix L Acceptance Guidelines
L-1000 PURPOSE
L 2000 ACCEPTANCE GUIDELINES
L-2100 Background and Introduction
111 Fig. L-2100-1 Acceptance Guidelines for CDF ( From RG 1.174)
112 Fig. L-2100-2 Acceptance Guidelines for LERF ( From RG 1.174)
113 Division 1, Nonmandatory Appendix M Design Guidance for Nuclear Power Plant Systems and Component Testing
M-1000 PURPOSE
M-2000 BACKGROUND
M-3000 GUIDANCE
M-3100 General Test Capability Guidance
114 M-3200 Subsection ISTF (Pumps)
115 M-3300 Subsection ISTC (Valves)
116 M-3400 Subsection ISTD (Snubbers)
117 M-3500 Other Considerations
M-3600 Division 2, Part 28 (System Testing Capability)
118 M-4000 REFERENCES
120 DIVISION 2: OM STANDARDS CONTENTS
124 Part 2 Performance Testing of Closed Cooling Water Systems in Light-Water Reactor Power Plants
125 Part 3 Vibration Testing of Piping Systems
1 SCOPE
2 DEFINITIONS
126 3 GENERAL REQUIREMENTS
Fig. 1 Typical Components of a Vibration Monitoring System (VMS)
127 3.1 Classification
128 3.2 Monitoring Requirements and Acceptance Criteria
Table 1 System Tolerances
130 4 VISUAL INSPECTION METHOD
4.1 Objective
4.2 Evaluation Techniques
4.3 Precautions
5 SIMPLIFIED METHOD FOR QUALIFYING PIPING SYSTEMS
5.1 Steady-State Vibration
131 Fig. 2 Deflection Measurement at the Intersection of Pipe and Elbow
Fig. 3 Single Span Deflection Measurement
Fig. 4 Cantilever Span Deflection Measurement
Fig. 5 Cantilever Span/Elbow Span in-Plane Deflection Measurement
132 Fig. 6 Cantilever Span/Elbow Guided Span in-Plane Deflection Measurement
Fig. 7 Span/Elbow Span Out-of-Plane Deflection Measurement, Span Ratio < 0.5
Fig. 8 Span/Elbow Span Out-of-Plane Deflection Measurement, Span Ratio > 0.5
Fig. 9 Span/Elbow Span Out-of-Plane Configuration Coefficient Versus Ratio of Spans
134 5.2 Transient Vibration
Fig. 10 Correction Factor C1
135 5.3 Inaccessible Piping (for Both Steady-State and Transient Vibration Evaluation)
6 RIGOROUS VERIFICATION METHOD FOR STEADY-STATE AND TRANSIENT VIBRATION
6.1 Modal Response Technique
136 6.2 Measured Stress Technique
7 INSTRUMENTATION AND VIBRATION MEASUREMENT REQUIREMENTS
7.1 General Requirements
137 8 CORRECTIVE ACTION
Table 2 Examples of Specifications of VMS Minimum Requirements; Measured Variable — Displacement
138 Part 3, Nonmandatory Appendix A Instrumentation and Measurement Guidelines
A-1 VISUAL METHODS (VMG 3)
A-2 ELECTRONIC MEASUREMENT METHODS (VMG 2 AND VMG 1)
A-2.1 Transducers
139 A-2.2 Cables
A-2.3 Signal Conditioner
140 A-2.4 Auxiliary Equipment
141 Part 3, Nonmandatory Appendix B Analysis Methods
B-1 FOURIER TRANSFORM METHOD
B-2 OTHER METHODS
142 Part 3, Nonmandatory Appendix C Test/Analysis Correlation Methods
C-1 TEST/ANALYSIS CORRELATION
C-2 EVALUATION OF THE MEASURED RESPONSES
143 Part 3, Nonmandatory Appendix D Velocity Criterion
D-1 VELOCITY CRITERION
D-2 SCREENING VELOCITY CRITERION
D-3 USE OF SCREENING VIBRATION VELOCITY VALUE
144 Part 3, Nonmandatory Appendix E Excitation Mechanisms, Responses, and Corrective Actions
E-1 EXCITATION MECHANISMS AND PIPING RESPONSES
E-1.1 Excitation Mechanisms
145 E-1.2 Piping Responses
E-2 ADDITIONAL TESTING AND ANALYSIS
146 Part 3, Nonmandatory Appendix F Flowchart — Outline of Vibration Qualification of Piping Systems
147 Fig. F-1 Flowchart — Outline of Vibration Qualification of Piping Systems
148 Part 3, Nonmandatory Appendix G Qualitative Evaluations
149 Part 3, Nonmandatory Appendix H Guidance for Monitoring Piping Steady-State Vibration Per Vibration Monitoring Group 2
H-1 PURPOSE
H-2 ASSUMPTIONS
H-3 IMPLEMENTATION
H-3.1 Quantitative Evaluations
150 Fig. H-1 Monitoring and Qualification of Piping Steady-State Vibration
151 H-3.2 Qualitative Evaluations
152 Table H-1 Recommended Actions for Piping Vibration Problem Resolution
153 H-4 ALLOWABLE DISPLACEMENT LIMIT
H-4.1 Characteristic Span
H-4.2 Node Points
154 Part 3, Nonmandatory Appendix I
155 Fig. I-1 Determination of LE and WT
156 Part 12 Loose Part Monitoring in Light-Water Reactor Power Plants
1 INTRODUCTION
1.1 Scope
1.2 Overview
2 DEFINITIONS
157 3 REFERENCES
158 4 EQUIPMENT
4.1 General
4.2 Field Equipment
159 Fig. 1 Typical Broadband Sensor Response to Nearby Impact
Fig. 2 Typical Broadband Sensor Response to More Distant Impact
160 Fig. 3 Range of Loose Part Signal Amplitude and Predominant Frequency Content
Fig. 4 Field Equipment
161 Fig. 5 Direct Stud Mount
Fig. 6 Clamped Mount
162 Table 1 Recommended PWR Accelerometer Locations
163 Fig. 7 Recommended Sensor Array for PWR With U- Tube Steam Generator
164 Fig. 8 Recommended Sensor Array for PWR With Once- Through Steam Generator
Table 2 Recommended BWR Accelerometer Locations
165 Fig. 9 Recommended Sensor Array for BWR
166 4.3 Control Cabinet Equipment
167 4.4 Analysis and Diagnostic Equipment
168 5 PROGRAM ELEMENTS
5.1 General
5.2 ALARA
5.3 Precautions
5.4 Calibration
5.5 Baseline Impact Testing
169 Fig. 10 Block Diagram for Charge Converter Calibration Tests
170 Fig. 11 Cable Properties (Typical for Twisted–Shielded Pair Cable)
5.6 Initial LPM Setpoints
5.7 Heat-Up and Cool-Down Monitoring
171 5.8 Periodic Monitoring and Testing
5.9 Alarm Response and Diagnostics
172 6 DOCUMENTATION
173 Part 12, Nonmandatory Appendix A References
174 Part 16 Performance Testing and Monitoring of Standby Diesel Generator Systems in Light-Water Reactor Power Plants
1 INTRODUCTION
1.1 Scope
1.2 Purpose
1.3 Risk-Informed Analysis
1.4 Subsystems Included Within the Diesel Generator Boundary
175 Fig. 1 Boundary and Support Systems of Emergency Diesel Generator Systems
176 1.5 Definitions
177 2 NONOPERATING CHECKS
2.1 Post-Maintenance Checks
2.2 Pre-Start Checks
3 TESTING
3.1 Post-Maintenance/Baseline Testing
178 3.2 Periodic Tests
179 Table 1 Periodic Tests
181 3.3 Other Testing Guidelines
4 INSERVICE MONITORING OF COMPONENT OPERATING AND STANDBY CONDITIONS
182 4.1 Engine
4.2 Lubrication Subsystem
4.3 Jacket Water and Intercooler Subsystem
4.4 Starting Subsystem
4.5 Combustion Air Intake Subsystem
4.6 Exhaust Subsystem
4.7 Fuel Oil Subsystem
183 4.8 Crankcase Ventilation Subsystem
4.9 Governor and Control Subsystem
4.10 Generator Subsystem
4.11 Ventilation and Cooling Subsystem
4.12 Exciter and Voltage Regulator Subsystem
4.13 Control and Protection Subsystem
4.14 Diesel Generator Output Breaker
5 OTHER CONDITION MONITORING METHODS/GUIDELINES
5.1 Diesel Engine Analysis
184 5.2 Vibration Analysis
5.3 Lube Oil Analysis
185 5.4 Cooling Water Analysis
5.5 Thermography
6 ALARM AND SHUTDOWN DURING TESTS
186 7 DIESEL GENERATOR OPERATING DATA AND RECORDS
7.1 Data/Records
7.2 Data Evaluation and Trending
7.3 Failure to Function (Root Cause)
187 Part 16, Nonmandatory Appendix A Post-Major Maintenance Test Data
Fig. A-1 Post-Major Maintenance Test Data Form
188 Part 16, Nonmandatory Appendix B Functional/Inservice Test Data
Fig. B- 1 Functional/ Inservice Test Data Form
189 Part 16, Nonmandatory Appendix C Data Trending Examples
190 Fig. C-1 Typical Lube Oil System
191 Fig. C-2 Typical Jacket Water System
192 Fig. C-3 Intercooler Water System
193 Fig. C-4 Typical Air/Exhaust System
194 Fig. C-5 Typical Fuel Oil System
195 Part 21 Inservice Performance Testing of Heat Exchangers in Light-Water Reactor Power Plants
1 INTRODUCTION
1.1 Scope
1.2 Exclusions
1.3 Owner’s Responsibility
2 DEFINITIONS
197 3 REFERENCES
3.1 Standard References
3.2 Appendix References
4 SELECTION AND PRIORITIZATION OF HEAT EXCHANGERS
4.1 Heat Exchanger Selection
198 4.2 Heat Exchanger Prioritization
5 BASIC REQUIREMENTS
5.1 Program Requirements
5.2 Preservice Requirements
5.3 Inservice Requirements
199 5.4 Interval Requirements
6 SELECTION OF METHODS
6.1 Functional Test Method
6.2 Heat-Transfer Coefficient Test Method (Without Phase Change)
200 Fig. 1 Intervals, Limits, and Parameter Trending (Typical)
201 Fig. 2 Method Selection Chart
202 6.3 Heat-Transfer Coefficient Test Method (With Condensation)
203 6.4 Transient Test Method
6.5 Temperature Effectiveness Test Method
204 6.6 Batch Test Method
205 6.7 Temperature-Difference Monitoring Method
6.8 Pressure-Loss Monitoring Method
6.9 Visual Inspection Monitoring Method
206 6.10 Parameter Trending
7 TESTING AND MONITORING CONDITIONS
7.1 Steady State
207 7.2 Flow Regimes
7.3 Temperatures
8 ERRORS, SENSITIVITIES, AND UNCERTAINTIES
208 8.1 Measurement Errors
8.2 Result Sensitivities
8.3 Total Uncertainty
8.4 Calculations and Averaging
8.5 Validity Check
209 8.6 Correlational Uncertainty
9 ACCEPTANCE CRITERIA
9.1 System Operability Limits
9.2 Component Design Limits
9.3 Required Action Limits
210 10 CORRECTIVE ACTION
11 RECORDS AND RECORD KEEPING
11.1 Equipment Records
11.2 Plans and Procedures
11.3 Record of Results
211 11.4 Record of Corrective Action
212 Part 21, Nonmandatory Appendix A Diagnostics
A-1 HEAT DUTY DEFICIENCY
A-1.1 Cooling Fluid Side Fouling
A-1.2 Process Fluid Side Fouling
A-1.3 Mechanical Dysfunction
A-1.4 Testing Errors
A-1.5 Computational Errors
213 A-2 EXCESSIVE PRESSURE LOSS
A-2.1 Tube-Side Pressure Loss
A-2.2 Shell-Side Pressure Loss
A-2.3 Plate Heat Exchanger Pressure Loss
A-3 MECHANICAL DYSFUNCTION
A-3.1 Tube Vibration
A-3.2 Interfluid Leakage
A-3.3 Air In-Leakage
214 A-3.4 Internal Bypass Flow
215 Part 21, Nonmandatory Appendix B Precautions
B-1 EXCESSIVE FLOW
B-2 CROSSING FLOW REGIMES
B-3 TEMPERATURE STRATIFICATION
B-4 OVERCOOLING
B-5 FLASHING
216 B-6 EFFECTIVE SURFACE AREA
B-7 WATER HAMMER
B-8 MISCELLANEOUS CONSIDERATIONS
B-9 FLOW INSTABILITY
B-10 PLATE HEAT EXCHANGERS
B-10.1 Torque Requirements
B-10.2 Flow Stability
B-11 FOULING CHARACTERISTICS
B-12 COMPONENT DESIGN FUNCTION
217 B-13 THERMAL DELAYS
B-14 MATERIAL PROPERTIES
218 Part 21, Nonmandatory Appendix C Examples
C-1 FUNCTIONAL TEST METHOD
C-1.1 Establish Cooling Water Maximum Design Conditions
C-1.2 Establish Flow
C-1.3 Establish Temperature of Interest Design Conditions
C-1.4 Compare the Temperature of Interest to the Acceptance Criteria
C-2 HEAT TRANSFER COEFFICIENT TEST METHOD (WITHOUT PHASE CHANGE)
219 C-2.1 Evaluation at Design Accident Conditions (MTD Method)
222 C-2.2 Evaluation at Test Conditions
227 C-2.3 Projection at Design Accident Conditions
228 C-3 HEAT TRANSFER COEFFICIENT TEST METHOD (WITH CONDENSATION)
C-3.1 Collect the Test Data
C-3.2 Write the Finite Difference Equations
229 Fig. C-1 One Tube Row Air-to-Water Cross-Flow Heat Exchanger
230 Fig. C-2 Fin, Condensate Layer, and Interfaces
233 C-3.3 Solve the Finite Difference Equations and Evaluate Fouling Resistance
C-4 TRANSIENT TEST METHOD
234 C-4.1 Establish the Initial Conditions
C-4.2 Collect the Temperature and Flow Rate Data
C-4.3 Write the Finite Difference Equations
235 Fig. C-3 Schematic Representation of a Countercurrent Shell-and-Tube Heat Exchanger
Fig. C-4 A Small Element of a Countercurrent Shell-and-Tube Heat Exchanger
237 C-4.4 Solve the Finite Difference Equations and Evaluate the Fouling Resistance
C-5 TEMPERATURE EFFECTIVENESS TEST METHOD
238 C-5.1 Establish Flows
C-5.2 Collect the Temperature Data
C-5.3 Calculate the Capacity Rate Ratio
C-5.4 Calculate the Temperature Effectiveness
C-5.5 Calculate the Projected Temperatures
239 C-6 BATCH TEST METHOD
C-6.1 Calculate the Thermal Capacity of the Process Fluid
C-6.2 Calculate the Temperature Effectiveness
240 C-6.3 Calculate the Capacity Rate Ratio
C-6.4 Calculate NTU
C-6.5 Calculate Ut (NTU Method)
C-7 TEMPERATURE DIFFERENCE MONITORING METHOD
241 Fig. C-5 Cooling Water Inlet Temperature Versus Temperature Difference
242 C-7.1 Calculate the Temperature Difference at Design Accident Conditions
C-7.2 Plot the Design Accident Condition Data
C-7.3 Extrapolate the Design Data to Determine the Acceptable Range
C-7.4 Calculate the Temperature Difference at Test Conditions
C-7.5 Plot the Test Data Against the Design Data
C-8 PRESSURE LOSS MONITORING METHOD
C-8.1 Establish Flow and Collect Flow Data
243 C-8.2 Collect the Pressure Loss Data
C-8.3 The Corrected Pressure Loss
C-8.4 Calculate the Average Corrected Pressure Loss
C-9 VISUAL INSPECTION MONITORING METHOD
C-9.1 Inspection Types
244 C-9.2 Monitoring Techniques
C-10 PARAMETER TRENDING
C-10.1 Test Parameters
C-10.2 Monitored Parameters
245 C-10.3 Other Parameters
C-11 UNCERTAINTY ANALYSIS
C-11.1 Measurement Errors
248 C-11.2 Result Sensitivities
C-11.3 Total Uncertainty
C-11.4 Calculated Parameters
249 Part 24 Reactor Coolant and Recirculation Pump Condition Monitoring
1 INTRODUCTION
1.1 Scope
1.2 Approach
2 DEFINITIONS
251 3 REFERENCES
4 MACHINE FAULTS
4.1 Introduction
5 VIBRATION, AXIAL POSITION, AND BEARING TEMPERATURE MONITORING EQUIPMENT
5.1 General
252 Table 1 Pumpset Mechanical Faults
Table 2 Seal Faults
253 5.2 Monitoring System
5.3 Radial Proximity Sensor Locations
Table 3 Electrical Motor Faults
254 5.4 Axial Proximity Sensor Locations
5.5 Phase-Reference Sensor Location
5.6 Bearing Temperature Sensors
5.7 Sensor Locations for Optional Accelerometers
5.8 Other Specifications
6 VIBRATION DATA ANALYSIS SYSTEM REQUIREMENTS
6.1 Introduction
6.2 Data Acquisition for Dynamic Signals
255 6.3 System Accuracy and Calibration
6.4 Data Analysis and Display
6.5 Data Storage
256 6.6 Continuous Display of Dynamic Signals
7 SEAL MONITORING
7.1 Introduction
7.2 Monitoring System
7.3 Monitoring and Analysis Requirements
257 7.4 Seal Alarm Response
7.5 Enhanced Monitoring of a Troubled Seal
Table 4 Minimum Monitoring and Recording Intervals
8 VIBRATION, AXIAL POSITION, AND BEARING TEMPERATURE MONITORING
8.1 Introduction
8.2 Postmaintenance Monitoring
258 8.3 Baseline
8.4 Periodic Monitoring
259 8.5 Preoutage Coastdown
8.6 Vibration Alarm Response
8.7 Enhanced Monitoring of a Troubled Pumpset
9 ALARM SETTINGS
9.1 Determining Alarm Points for Overall Vibration Amplitude
9.2 Determining 1× and 2× Vector Acceptance Regions
260 9.3 Determining Alarm Points for Thrust Position
9.4 Determining Alarm Points for Bearing Temperature
9.5 Alarm Settings
Table 5 Typical Thrust Position Alarm Setpoints for a Pump With Normal Upthrust
10 ANALYSIS AND DIAGNOSTICS
10.1 Introduction
10.2 Data Types
10.3 Analysis Methods
261 10.4 Data Analysis
11 ADDITIONAL TECHNOLOGIES
11.1 Thermography
11.2 Lube Oil Analysis
11.3 Motor Current Signature Analysis
11.4 Motor Electrical Monitoring and Testing
11.5 Loose Parts Monitoring
262 12 OTHER
12.1 Calibrations
12.2 Quality
263 Part 24, Nonmandatory Appendix A References
264 Part 24, Nonmandatory Appendix B Thermography
265 Part 24, Nonmandatory Appendix C Lube Oil Analysis
266 Part 24, Nonmandatory Appendix D Motor Current Signature Analysis
267 Part 24, Nonmandatory Appendix E Loose Parts Monitoring
268 Part 25 Performance Testing of Emergency Core Cooling Systems in Light-Water Reactor Power Plants
269 Part 26 Determination of Reactor Coolant Temperature From Diverse Measurements
1 INTRODUCTION
1.1 Scope
1.2 Applicability
1.3 Basic Methodology
2 DEFINITIONS
270 3 REFERENCES
4 REQUIREMENTS
4.1 Plant Conditions
4.2 Test Equipment
4.3 Uncertainty Methodologies
5 DEVELOP TEST PROCEDURES AND PERFORM TESTING
271 5.1 Establish Primary-to-Secondary Side ΔTps
5.2 Test Procedure Development
5.3 Perform Test
272 6 DOCUMENTATION
273 Part 26, Nonmandatory Appendix A Measurement Equipment Uncertainties
274 Part 28 Standard for Performance Testing of Systems in Light-Water Reactor Power Plants
1 INTRODUCTION
1.1 Scope
1.2 Exclusions
1.3 Owner’s Responsibilities
2 DEFINITIONS
275 3 REFERENCES
4 GENERAL TESTING REQUIREMENTS
4.1 Establish System Test Boundaries
4.2 Identify System Performance Requirements
276 4.3 Identify Testable Characteristics
4.4 Establish Acceptance Criteria
4.5 Develop Test Procedures and Perform Testing, Inspections, and Engineering Analysis
280 5 SPECIFIC TESTING REQUIREMENTS
5.1 Emergency Core Cooling Systems
5.2 Auxiliary or Emergency Feedwater Systems
5.3 Closed Cooling Water Systems
5.4 Emergency Service Water Systems
5.5 Instrument Air Systems
6 EVALUATE TEST DATA
6.1 Compare Data to Acceptance Criteria
6.2 Trend Test Data
6.3 Evaluate Test Interval
7 DOCUMENTATION
281 7.1 System Test Plan
7.2 Test Results and Corrective Actions
282 Part 28, Mandatory Appendix I Specific Testing Requirements of Emergency Core Cooling Systems in BWR Power Plants
I-1 INTRODUCTION
I-2 DEFINITIONS
I-3 REFERENCE
I-4 BWR ECCS TESTING REQUIREMENTS
I-4.1 Establish System Testing Boundaries
I-4.2 Identify System Performance Requirements
I-4.3 Identify Testable Characteristics That Represent Performance Requirements
283 I-4.4 Establish Characteristic Acceptance Criteria
I-4.5 Develop Test Procedures and Perform Testing, Inspections, and Engineering Analysis
286 Part 28, Mandatory Appendix II Specific Testing Requirements of Emergency Core Cooling Systems in PWR Power Plants
II-1 INTRODUCTION
II-2 DEFINITIONS
II-3 REFERENCES
II-4 PWR ECCS TESTING REQUIREMENTS
II-4.1 Establish System Testing Boundaries
II-4.2 Identify System Performance Requirements
II-4.3 Identify Testable Characteristics That Represent Performance Requirements
287 II-4.4 Establish Characteristic Acceptance Criteria
II-4.5 Develop Test Procedures and Perform Testing, Inspections, and Engineering Analysis
289 Part 28, Mandatory Appendix III Specific Testing Requirements of Auxiliary or Emergency Feedwater Systems in LWR Power Plants
III-1 INTRODUCTION
III-2 DEFINITION
III-3 REFERENCES
III-4 AUXILIARY FEEDWATER SYSTEM TESTING REQUIREMENTS
III-4.1 Establish System Testing Boundaries
III-4.2 Identify System Performance Requirements
III-4.3 Identify Testable Characteristics That Represent Performance Requirements
290 III-4.4 Establish Characteristic Acceptance Criteria
III-4.5 Develop Test Procedures and Perform Testing, Inspections, and Engineering Analysis
291 Part 28, Mandatory Appendix IV Specific Testing Requirements of Closed Cooling Water Systems in LWR Power Plants
IV-1 INTRODUCTION
IV-2 DEFINITIONS
IV-3 CLOSED COOLING WATER SYSTEM TESTING REQUIREMENTS
IV-3.1 Establish System Test Boundaries
IV-3.2 Identify System Performance Requirements
IV-3.3 Identify Testable Characteristics That Represent Performance Requirements
292 Fig. IV-1 CCWS Typical Flow Diagram
293 IV-3.4 Establish Acceptance Criteria for Testable Characteristics
IV-3.5 Develop Test Procedures and Perform Testing, Inspections, and Engineering Analysis
295 Part 28, Mandatory Appendix V Specific Testing Requirements of Emergency Service Water Systems in LWR Power Plants (Open Cooling Water Systems)
V-1 INTRODUCTION
V-2 DEFINITIONS
V-3 EMERGENCY SERVICE WATER SYSTEM TEST REQUIREMENTS
V-4 ESTABLISH SYSTEM TEST BOUNDARIES
V-4.1 General
V-4.2 Identify System Performance Requirements
V-4.3 Identify Testable Characteristics That Represent Performance Requirements
296 V-4.4 Establish Acceptance Criteria for Testable Characteristics
V-4.5 Develop Test Procedures and Perform Testing, Inspections, and Engineering Analysis
298 Part 28, Mandatory Appendix VI Specific Testing Requirements of Instrument Air Systems in LWR Power Plants
VI-1 INTRODUCTION
VI-2 DEFINITIONS
VI-3 INSTRUMENT AIR SYSTEM TESTING REQUIREMENTS
VI-3.1 Establish System Testing Boundaries
299 Fig. VI-1 Typical Instrument Air System
300 VI-3.2 Identify System Performance Requirements
VI-3.3 Identify Testable Characteristics That Represent Performance Requirements
VI-3.4 Establish Characteristic Acceptance Criteria
VI-3.5 Develop Test Procedures and Perform Testing, Inspections, and Engineering Analysis
303 Part 28, Nonmandatory Appendix A Industry Guidance
304 Table A-1 LWR Operating Experience Information
307 Part 28, Nonmandatory Appendix B Guidance for Testing Certain System Characteristics
B-1 PURPOSE
B-2 VERIFYING ECCS ACCUMULATOR DISCHARGE FLOW PATH RESISTANCE IN PWRS
B-3 TYPICAL PROCESS SUBSYSTEM
B-4 IDENTIFYING AND VERIFYING PUMP TDH VERSUS FLOW ACCEPTANCE CRITERIA
B-5 VERIFYING DISCHARGE FLOW PATH RESISTANCE
308 Fig. B-1 Typical Branch Line System
Fig. B-2 Verifying Pump TDH Versus Flow: Correction of Measured Data for Instrument Accuracy
309 Fig. B-3 Verifying Pump TDH Versus Flow: Correction of Analysis Limits for Instrument Accuracy
310 Fig. B-4 Verifying Discharge Piping Overall Resistance: Correction of Measured Data for Instrument Accuracy
Fig. B-5 Verifying Discharge Piping Overall Resistance: Correction of Analysis Limits for Instrument Accuracy
311 B-6 VERIFYING BALANCED BRANCH LINE RESISTANCE
B-7 SYSTEM ADJUSTMENTS
B-7.1 Acceptance Criteria: Section B-4
B-7.2 Acceptance Criteria: Section B-5 or B-6
312 Fig. B-6 Measured Subsystem Operating Point and Range of Operating Points Allowed by Analysis Limits
313 Part 28, Nonmandatory Appendix C Measurement Accuracy of System Characteristics
C-1 BACKGROUND
C-2 NOMENCLATURE
314 C-3 SENSITIVITY COEFFICIENTS
C-4 ACCURACY OF DIRECTLY MEASURED VARIABLES
C-5 ACCURACY OF DERIVED VARIABLES
C-6 ACCURACY OF FLOW RATE
315 C-6.1 Flow Coefficient
C-6.2 Orifice Bore Diameter
C-6.3 Orifice Differential Pressure
C-6.4 Specific Volume
C-7 ACCURACY OF PUMP TDH
316 C-8 ACCURACY OF SYSTEM RESISTANCE
C-9 EXAMPLE EVALUATION OF PUMP TDH ACCURACY
317 C-9.1 Evaluation of Accuracy of Measurement of Pump Performance
Table C-1 Recorded Test Data
Table C-2 Calculated Pump Head
Table C-3 Sensitivity Coefficients for Pump TDH
319 C-9.2 Results
Table C-4 Pump TDH Overall Accuracy Calculation
320 Part 29 Alternative Treatment Requirements for RISC-3 Pumps and Valves
1 INTRODUCTION
1.1 Scope
1.2 Exclusions Identification
1.3 Owner’s Responsibility
2 DEFINITIONS
3 GENERAL PROGRAMMATIC REQUIREMENTS FOR RISC-3 PUMPS AND VALVES
3.1 Component Scope
3.2 Reasonable Confidence
3.3 Industrial Practices
3.4 Functional Requirements
321 4 ALTERNATIVE TREATMENT FOR REASONABLE CONFIDENCE OF RISC-3 PUMP AND VALVE PERFORMANCE
4.1 Alternative Treatment Goals
4.2 Alternative Treatment Considerations
4.3 Alternative Treatment Selection for Reasonable Confidence
5 CORRECTIVE ACTION
322 6 FEEDBACK AND TREATMENT ADJUSTMENT
7 RECORDS
324 DIVISION 3: OM GUIDES CONTENTS
327 Part 5 Inservice Monitoring of Core Support Barrel Axial Preload in Pressurized Water Reactor Power Plants
1 PURPOSE AND SCOPE
1.1 Purpose
1.2 Scope
1.3 Application
1.4 Definitions
2 BACKGROUND
328 Fig. 1 Reactor Arrangement Showing Typical Ex-Core Detector Locations
329 3 PROGRAM DESCRIPTION
4 BASELINE PHASE
4.1 Objective
4.2 Data Acquisition Periods
4.3 Data Acquisition and Reduction
330 Table 1 Summary of Program Phases
331 4.4 Data Evaluation
5 SURVEILLANCE PHASE
5.1 Objective
5.2 Frequency of Data Acquisition
5.3 Data Acquisition and Reduction
5.4 Data Evaluation
6 DIAGNOSTIC PHASE
6.1 Objective
6.2 Data Acquisition Periods
6.3 Data Acquisition, Reduction, and Evaluation
333 Part 5, Nonmandatory Appendix A Theoretical Basis
334 Fig. A-1 Idealized Analysis for Core Barrel Motion
335 Part 5, Nonmandatory Appendix B Data Reduction Techniques
B-1 NORMALIZED POWER SPECTRAL DENSITY (NPSD)
B-2 NORMALIZED ROOT MEAN SQUARE OF THE SIGNAL
B-3 NORMALIZED CROSS-POWER SPECTRAL DENSITY (NCPSD), COHERENCE (COH), AND PHASE (φ)
B-3.1 Normalized Cross-Power Spectral Density (NCPSD)
B-3.2 Coherence (COH) and Phase (φ)
336 Fig. B-1 Representative Spectra
337 Part 5, Nonmandatory Appendix C Data Acquisition and Reduction
C-1 INSTRUMENTATION
C-2 SIGNAL CONDITIONING
C-3 DATA ACQUISITION PARAMETERS
C-4 PLANT CONDITIONS FOR DATA ACQUISITION
C-5 DATA REDUCTION PARAMETERS
338 C-6 SIGNAL BUFFERING
C-7 DATA ASSURANCE
C-8 DATA RETENTION
C-9 STATISTICAL UNCERTAINTIES IN NEUTRON NOISE DATA ANALYSIS
Table C-1 Parameters to Be Documented During Data Acquisition
340 Part 5, Nonmandatory Appendix D Data Evaluation
D-1 BASELINE
D-1.1 Normalized Root Mean Square (nrms) Value
D-1.2 Normalized Power Spectral Density (NPSD)
D-1.3 Normalized Cross-Power Spectral Density (NCPSD), Coherence (COH), and Phase (φ)
341 Fig. D-1 Narrowband rms
342 Fig. D-2 Example of Wideband rms Amplitude Versus Boron Concentration
D-2 SURVEILLANCE PHASE
D-2.1 Root Mean Square
D-2.2 Normalized Cross-Power Spectral Density (NCPSD)
D-2.3 Coherence (COH) and Phase (φ)
D-3 DIAGNOSTIC PHASE
D-3.1 Normalized Root Mean Square (nrms)
343 D-3.2 Normalized Power Spectral Density (NPSD)
D-3.3 Normalized Cross-Power Spectral Density (NCPSD), Coherence (COH), and Phase (φ)
D-3.4 Additional Sources of Information
344 Part 5, Nonmandatory Appendix E Guidelines for Evaluating Baseline Signal Deviations
345 Fig. E-1 Typical Ex-Core Neutron Noise Signatures From Six PWRs
346 Fig. E-2 Typical Baseline NPSD Range
347 Fig. E-3 Examples of Changes in the Neutron Noise Signature Over a Fuel Cycle
348 Fig. E-4 Example of Loss of Axial Restraint
349 Part 5, Nonmandatory Appendix F Correlation of rms Amplitude of the Ex-Core Signal (Percent Noise) and Amplitude of Core Barrel Motion
Table F-1 Ratio of the Amplitude of the Neutron Noise to Core Barrel Motion
350 Part 5, Nonmandatory Appendix G Bibliography
351 Part 7 Requirements for Thermal Expansion Testing of Nuclear Power Plant Piping Systems
1 SCOPE
2 DEFINITIONS
352 3 GENERAL REQUIREMENTS
3.1 Specific Requirements
353 3.2 Acceptance Criteria
4 RECONCILIATION METHODS
354 Fig. 1 System Heatup, Reconciliation, and Corrective Action
355 4.1 Reconciliation Method 1
4.2 Reconciliation Method 2
4.3 Reconciliation Method 3
5 CORRECTIVE ACTION
6 INSTRUMENTATION REQUIREMENTS FOR THERMAL EXPANSION MEASUREMENT
356 Fig. 2 Typical Components of a TEMS
6.1 General Requirements
Table 1 An Example of Specification of TEMS Minimum Requirements
357 6.2 Precautions
358 Part 7, Nonmandatory Appendix A Guidelines for the Selection of Instrumentation and Equipment of a Typical TEMS
359 Table A-1 Typical Transducers
360 Table A-2 Typical Signal Conditioners
Table A-3 Typical Processing Equipment
Table A-4 Typical Display/Recording Equipment
361 Part 7, Nonmandatory Appendix B Thermal Stratification and Thermal Transients
B-1 INTRODUCTION
B-2 THERMAL STRATIFICATION
362 Fig. B-1 Simplified Schematic of Surge Line Stratification
B- 3 THERMAL TRANSIENTS
364 Part 11 Vibration Testing and Assessment of Heat Exchangers
1 INTRODUCTION
1.1 Scope
2 DEFINITIONS
3 REFERENCES
4 BACKGROUND DESCRIPTION
365 5 SELECTION OF EQUIPMENT TO BE TESTED
5.1 Equipment Selection Factors
366 6 SELECTION OF TEST METHOD
6.1 Test Measurement Methods
6.2 Bases for Selection
367 6.3 Precautions
7 TEST REQUIREMENTS
7.1 Direct Measurement of Tube Vibration
368 Fig. 1 Tube Bundle Configuration With Tube Groupings Most Susceptible to Fluidelastic Instability Denoted by Cross-Hatching
372 7.2 Microphone Scan for Tube Impacting
373 7.3 External Monitoring for Impacting
374 8 TEST CONDITIONS
8.1 Shell-Side Flow Rate
8.2 Rough Process Conditions
9 DOCUMENTATION
10 PRECAUTIONS
375 Part 11, Nonmandatory Appendix A Causes of Vibration
A-1 DISCUSSION
376 Fig. A-1 Root Mean Square (rms) Acceleration Versus Flow Rate From Three Typical Tubes
377 Fig. A-2 Tube Response PSDs for Various Shell- Side Flow Rates (Ordinate Not to Scale)
378 A-2 REFERENCES
379 Part 11, Nonmandatory Appendix B Methods for Comparative Evaluation of Fluidelastic and Turbulence-Induced Vibration
B-1 INTRODUCTION
B-2 NOMENCLATURE
B-3 FLUIDELASTIC INSTABILITY
380 B-4 SIMPLIFIED METHOD FOR ESTIMATING TURBULENCE-INDUCED VIBRATION IN A SIMILAR DESIGN
381 B-5 REFERENCES
Table B-1 Upper Bound Estimate of the Random Turbulence Excitation Coefficient for Tube Bundle
382 Part 11, Nonmandatory Appendix C Test Guidelines for Dynamic Characterization of Tubes
C-1 TUBE MECHANICAL VIBRATION CHARACTERISTICS
C-2 MODAL FREQUENCIES AND DAMPING DETERMINATION
C-3 MODE SHAPE CHARACTERIZATION
383 Part 11, Nonmandatory Appendix D External Vibration Surveys
D-1 INTRODUCTION
D-2 MEASUREMENT LOCATIONS
D-3 ACCEPTANCE GUIDELINES AND RECOMMENDED FOLLOW-UP
384 Part 11, Nonmandatory Appendix E Detection Methods and Data Interpretation
E-1 INTRODUCTION
E-2 AURAL OBSERVATIONS
E-3 ACCELEROMETER SIGNAL CHARACTERISTICS DURING METAL-TO-METAL IMPACTING
E-4 DETECTION OF VIBRATION CAUSED BY FLUIDELASTIC EXCITATION WITH TUBE-MOUNTED SENSORS
385 Fig. E-1 Acoustic rms Spectrum for Nonimpacting Tube (No. 6-1) and Impacting Tube (No. 6-2)
386 Fig. E-2 Correlation of Signals From Microphone and In-Tube Accelerometer
387 E-4.1 Vibration Amplitude Versus Flow Response Rate
E-4.2 Vibration Amplitude Versus Flow Amplitude Threshold
E-4.3 Time History
388 Fig. E-3 Root Mean Square (rms) Tube Response Versus Flow Velocity
Fig. E-4 Response Versus Flow Velocity (Laboratory Test of 5 × 5 Tube Array)
389 Fig. E-5 Response Versus Flow Rate for Four Tubes in Industrial Size Shell-and-Tube Heat Exchanger (Open Symbol: Increasing Flow; Solid Symbol: Decreasing Flow)
390 Fig. E-6 Displacement Time Histories From Accelerometer Pair in Heat Exchanger Tube Vibration Test
Fig. E-7 Acceleration Time Histories From Accelerometer Pair in Heat Exchanger Tube Vibration Test
391 E-4.4 Tube Trajectory
E-4.5 Frequency Response Data
E-5 TUBE SUPPORT PLATE INTERACTION
392 Fig. E-8 Tube Vibration Patterns From X- Y Probe and Test of Industrial Size Shell-and-Tube Heat Exchanger
393 Fig. E-9 Frequency Response Curves for Tubes in Industrial Size Shell-and-Tube Heat Exchanger
394 Fig. E-10 Schematic of Test Setup
E-6 REFERENCES
395 Fig. E-11 Root Mean Square (rms) Tube Displacements As Function of Flow Velocity (Diametral Gap of 1.02 mm)
396 Fig. E-12 Frequency Spectra of Tube Displacement at Location “A” (Diametral Gap of 1.27 mm)
397 Fig. E-13 Tube Displacement Time Histories at Location “A” (Diametral Gap of 0.51 mm)
399 Part 11, Nonmandatory Appendix F Vibration Acceptance Guidelines
F-1 INTRODUCTION
F-2 GUIDELINES FOR INITIAL ASSESSMENT
F-3 FOLLOW-UP ACTIONS
F-4 METHODS FOR DETAILED WEAR ASSESSMENTS
400 F-5 GUIDELINES FOR THE EVALUATION OF EXTERNAL VIBRATION LEVELS
F-6 REFERENCES
401 Part 11, Nonmandatory Appendix G Installation of Strain Gages
402 Part 14 Vibration Monitoring of Rotating Equipment in Nuclear Power Plants
1 INTRODUCTION
1.1 Scope
1.2 Purpose
2 DEFINITIONS
403 3 REFERENCES
3.1 Referenced Standards
3.2 Referenced Publications
404 Table 1 Comparison of Periodic and Continuous Monitoring and Relative Advantages
4 VIBRATION MONITORING
4.1 Types of Monitoring
4.2 Quality Considerations
405 Table 2 Transducer Location Guidelines — Turbines
Table 3 Transducer Location Guidelines — Equipment With Antifriction Bearings
406 Table 4 Transducer Location Guidelines — Horizontal Pumps — Fluid Film Bearings
Table 5 Transducer Location Guidelines — Motor-Driven Vertical Pumps — Fluid Film Bearings
407 Table 6 Transducer Location Guidelines — Electric Motors
408 5 ESTABLISHING THE BASELINE
5.1 Baseline Data
5.2 Methods to Establish Baseline
6 ESTABLISHING VIBRATION LIMITS
6.1 Purpose
409 Fig. 1 An Example of a Vibration Data Sheet
410 6.2 Parameters
6.3 Criteria
Fig. 2 An Example of a Vibration Trend Curve
411 Fig. 3 Vibration Level Trend Plot of Condition One (For Defined Vibration Limits From Manufacturer’s Data or Equivalent)
412 Fig. 4 Vibration Level Trend Plot of Condition Two (For Defined Vibration Limits From Manufacturer’s Data or Equivalent)
413 7 DATA ACQUISITION
8 HARDWARE
9 DIAGNOSTICS
9.1 Purpose
9.2 Troubleshooting
414 Table 7 Vibration Troubleshooting Chart
415 Part 14, Nonmandatory Appendix A Instrumentation Selection and Use
A-1 INSTALLATION OF TRANSDUCERS
A-1.1 Mounting Techniques
A-1.2 Types of Measurement
416 A-2 CALIBRATION
A-3 PRETEST CONDITIONS
A-4 MEASURING AND RECORDING INFORMATION
A-5 SPECIAL CONSIDERATIONS
A-5.1 Natural Frequency
A-5.2 Magnetic/Electrical Interference
A-5.3 Environment
A-6 PERSONNEL
417 Part 14, Nonmandatory Appendix B Transducers and Analysis Equipment
B-1 TRANSDUCERS
B-1.1 Noncontact Transducer
B-1.2 Velocity Transducers
418 Table B-1 Noncontacting Displacement Probes — Probe Advantages Versus Disadvantages
Table B-2 Velocity Transducers — Transducer Advantages Versus Disadvantages
419 Table B-3 Accelerometers — Transducer Advantages Versus Disadvantages
Table B-4 Combination Probe Attached to Bearing Housing — Transducer Advantages Versus Disadvantages
420 B-1.3 Acceleration Transducer (Accelerometer)
B-1.4 Combination Transducers
B-1.5 Shaft Rider
Table B-5 Shaft Rider — Transducer Advantages Versus Disadvantages
421 B-1.6 Shaft Stick
B-1.7 Once Per Turn Phase Angle Reference
B-2 CONTINUOUS VIBRATION MONITORING INSTRUMENTS
B-2.1 Vibration Switch
B-2.2 Nonindicating Monitor
B-2.3 Indicating Monitor
B-2.4 Diagnostic Monitor
B-3 PERIODIC ANALYSIS INSTRUMENTATION
B-3.1 Go/No Go Meter
B-3.2 Overall Level Meter
B-3.3 Tunable Filter
B-3.4 Oscilloscope
B-3.5 Fast Fourier Transform Analyzer
B-3.6 Portable Integral Memory Data Acquisition and Playback Instrument
B-3.7 Tape Recorders
422 Part 17 Performance Testing of Instrument Air Systems in Light-Water Reactor Power Plants
423 Part 19 Preservice and Periodic Performance Testing of Pneumatically and Hydraulically Operated Valve Assemblies in Light-Water Reactor Power Plants
1 INTRODUCTION
1.1 Scope
1.2 Exclusions
2 DEFINITIONS
424 3 TEST GUIDANCE
3.1 Preservice Test Guidance
3.2 Performance Test Guidance
3.3 Equipment Replacement, Modification, Repair, and Maintenance Test Guidance
4 TEST METHODS
4.1 Prerequisites
4.2 Instrument Calibration
4.3 Test Conditions
425 4.4 Limits and Precautions
4.5 Test Procedures
4.6 Test Parameters
4.7 Test Information
5 ANALYSIS AND EVALUATION OF DATA
5.1 Acceptance Criteria
426 5.2 Analysis of Data
5.3 Evaluation of Data
5.4 Documentation of Analysis and Evaluation of Data
6 CORRECTIVE ACTION
427 Part 23 Inservice Monitoring of Reactor Internals Vibration in Pressurized Water Reactor Power Plants
1 INTRODUCTION
1.1 Scope
1.2 Background
2 DEFINITIONS
428 Fig. 1 Schematic of a Pressurized Water Reactor (PWR) Showing Typical Sensor Arrangement
429 3 REFERENCES
4 INTERNALS VIBRATION EXCITATION SOURCES, RESPONSES, AND MODES
4.1 Sources of Excitation and Responses
430 4.2 Vibration Modes
5 SIGNAL DATABASE
5.1 Signals to Be Monitored and Reactor Conditions
5.2 Data Acquisition
431 Fig. 2 Beam and Shell Mode Vibration of a PWR Core Support Barrel
432 5.3 Signal Sampling
5.4 Signal Recording
5.5 Data Reduction
Table 1 Sensor Types and Potential Applications in Reactor Noise Analysis
433 Fig. 3 Typical Components in a Signal Data Acquisition System
Table 2 Relationships Between Sampling Rates and Analysis Results
434 5.6 Data Storage
5.7 Documentation
435 6 DATA REVIEW
6.1 Initial Data Set
6.2 Subsequent Data Sets
437 Part 23, Nonmandatory Appendix A Discussion of Spectral Functions
A-1 NORMALIZED POWER SPECTRAL DENSITY (NPSD)
A-2 NORMALIZED ROOT MEAN SQUARE OF THE SIGNAL
A-3 NORMALIZED CROSS-POWER SPECTRAL DENSITY (NCPSD), COHERENCE (COH), AND PHASE (N)
A-3.1 Normalized Cross-Power Spectral Density (NCPSD)
A-3.2 Coherence (COH) and Phase (N)
438 Fig. A-1 Different Spectral Functions
439 A-4 IN-PHASE AND OUT-OF-PHASE SIGNAL SEPARATION (MAYO, 1977)
440 A-5 REFERENCES
441 Part 23, Nonmandatory Appendix B Supporting Information on Component Vibrations
B-1 IN-CORE DETECTOR THIMBLES
B-1.1 Introduction
B-1.2 Detection of Thimble Vibration Using In-Core Detector Neutron Noise
B-2 BAFFLE JETTING
B-2.1 Introduction
B-2.2 Data Acquisition
B-2.3 Data Diagnosis
442 B-3 FUEL ASSEMBLY VIBRATIONS
B-3.1 Introduction
B-3.2 Data Acquisition
B-3.3 Data Diagnosis
B-4 REFERENCE
443 Part 23, Nonmandatory Appendix C Pump-Induced Vibrations
C-1 INTRODUCTION
C-2 CASE STUDY 1: COOLANT PUMP OPERATION CHARACTERISTICS
C-3 CASE STUDY 2: SPACE-TIME BEATING OF COOLANT PUMPS IN A MULTI-LOOP PWR PLANT
444 C-4 REFERENCES
445 Fig. C-1 Reactor Coolant System Arrangement — Plan View
446 Fig. C-2 Data Set I, 180 deg Phase NCPSD, A–D
447 Fig. C-3 Data Set II, 180 deg NCPSD, A–D and B–C
448 Fig. C-4 180 deg Phase NCPSD, X–Y
Fig. C-5 Lissajous Figure of Ex-Core Neutron Noise Data Showing Motion of Reactor Core in a Multi-Loop Plant
449 Part 23, Nonmandatory Appendix D Sampling Rate and Length of Data Record Requirement to Resolve a Spectral Peak
452 ASME OM INTERPRETATIONS (FOR DIVISION 1)
456 OM CODE CASES (FOR DIVISION 1)
458 Code Case OMN-1
466 Code Case OMN-1, Revision 1
471 Code Case OMN-3
481 Code Case OMN-4
482 Code Case OMN-6
483 Code Case OMN-7
484 Code Case OMN-8
485 Code Case OMN-9
488 Code Case OMN-10
493 Code Case OMN-11
494 Code Case OMN-12
499 Code Case OMN-13
501 Code Case OMN-13, Revision 1
503 Code Case OMN-13, Revision 2
505 Code Case OMN-15
508 Code Case OMN-15, Revision 2
512 Code Case OMN-16
515 Code Case OMN-16, Revision 1
518 Code Case OMN-17
519 Code Case OMN-18
520 Code Case OMN-19
521 Code Case OMN-20
522 Code Case OMN-21
ASME OM 2015
$98.04