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NFPA 70B: Recommended Practice for Electrical Equipment Maintenance, 2013
- Important Notices and Disclaimers
- Additional Notices and Disclaimers
- Chapter 1 Administration [Go to Page]
- 1.1 Scope
- 1.2 Purpose
- Chapter 2 Referenced Publications [Go to Page]
- 2.1 General
- 2.2 NFPA Publications
- 2.3 Other Publications
- 2.4 References for Extracts in Recommendations Sections
- Chapter 3 Definitions [Go to Page]
- 3.1 General
- 3.2 NFPA Official Definitions
- 3.3 General Definitions
- Chapter 4 Why an Effective Electrical Preventive Maintenance (EPM) Program Pays Dividends [Go to Page]
- 4.1 Why EPM?
- 4.2 Value and Benefits of a Properly Administered EPM Program
- 4.3 EPM and Energy Conservation
- 4.4 Case Histories
- Chapter 5 What Is an Effective Electrical Preventive Maintenance (EPM) Program? [Go to Page]
- 5.1 Introduction
- 5.2 Essential Elements of an EPM Program
- 5.3 Planning an EPM Program
- 5.4 Personnel
- 5.5 Survey and Analysis
- 5.6 Programmed Inspections
- Chapter 6 Planning and Developing an Electrical Preventive Maintenance (EPM) Program [Go to Page]
- 6.1 Introduction
- 6.2 Survey of Electrical Installation
- 6.3 Identification of Critical Equipment
- 6.4 Establishment of a Systematic Program
- 6.5 Methods and Procedures
- 6.6 Maintenance of Imported Electrical Equipment
- 6.7 Maintenance of Electrical Equipment for Use in Hazardous (Classified) Locations
- 6.8 Outsourcing of Electrical Equipment Maintenance
- 6.9 Emergency Preparedness and Electrical System and Equipment Restoration (EPnSR)
- 6.10 Counterfeit Components, Devices, Tools, and Equipment
- Chapter 7 Personnel Safety [Go to Page]
- 7.1 Introduction
- 7.2 Grounding of Equipment to Provide Protection for Electrical Maintenance Personnel
- Chapter 8 Fundamentals of Electrical Equipment Maintenance [Go to Page]
- 8.1 Design to Accommodate Maintenance
- 8.2 Scheduling Maintenance
- 8.3 Equipment Safety
- 8.4 Protective Scheme
- 8.5 Acceptance Testing
- 8.6 Guidelines and Impact of Additions/Rework to Retrofitting Equipment
- 8.7 Equipment Cleaning
- 8.8 Special Handling and Disposal Considerations
- 8.9 Supervisory Control and Data Acquisition (SCADA) Systems
- 8.10 Lubrication
- Chapter 9 System Studies [Go to Page]
- 9.1 Introduction
- 9.2 Short-Circuit Studies
- 9.3 Coordination Studies
- 9.4 Load-Flow Studies
- 9.5 Reliability Studies
- 9.6 Arc Flash Hazard Analysis Studies
- Chapter 10 Power Quality [Go to Page]
- 10.1 Introduction
- 10.2 Harmonics
- 10.3 Transients (Surges)
- 10.4 Voltage Sags and Swells
- 10.5 Long-Duration Undervoltages and Sustained Voltage Interruptions
- 10.6 Unbalanced Voltages and Single Phasing
- 10.7 Symptoms — Grounding
- 10.8 Noise in Electrical and Electronic Systems
- 10.9 Interharmonics
- 10.10 Voltage Fluctuations and Flicker
- 10.11 Power Quality Audit
- 10.12 Power Quality References
- Chapter 11 Testing and Test Methods [Go to Page]
- 11.1 Introduction
- 11.2 Acceptance Tests and Maintenance Tests
- 11.3 As-Found and As-Left Tests
- 11.4 Frequency of Tests
- 11.5 Special Precautions and Safety
- 11.6 Qualifications of Test Operators
- 11.7 Test Equipment
- 11.8 Forms
- 11.9 Insulation Testing
- 11.10 Low-Voltage Circuit Breakers
- 11.11 Transformer Tests
- 11.12 Protective Relays
- 11.13 Grounding Systems
- 11.14 Battery Testing
- 11.15 Switches
- 11.16 Medium and High Voltage Circuit Breakers
- 11.17 Infrared Inspection
- 11.18 Fuses
- 11.19 Insulating-Liquid Analysis
- 11.20 Rotating Machine Testing
- 11.21 Cables
- 11.22 Adjustable-Speed Drive Testing
- 11.23 Switchgear and Switchboard Assemblies
- 11.24 Surge Arresters
- 11.25 Power Factor Correction Capacitors
- 11.26 Emergency Systems
- 11.27 Test or Calibration Decal System
- Chapter 12 Maintenance of Electrical Equipment Subject to Long Intervals Between Shutdowns [Go to Page]
- 12.1 Introduction
- 12.2 General Aspects of Maintaining Medium- and Low-Voltage Distribution Systems
- 12.3 Utilization
- 12.4 Process Instrumentation and Control
- Chapter 13 Ground-Fault Protection [Go to Page]
- 13.1 Introduction
- 13.2 Ground-Fault Protective Equipment for Excessive Leakage Currents
- 13.3 Ground-Fault Protective Equipment to Prevent Damage
- Chapter 14 Grounding [Go to Page]
- 14.1 Introduction
- 14.2 Symptoms and Causes of Inadequate Grounding
- 14.3 Grounding System Inspection, Testing, and Monitoring
- 14.4 Solutions to Inadequate Grounding
- Chapter 15 Substations and Switchgear Assemblies [Go to Page]
- 15.1 Substations
- 15.2 Switchgear Assemblies
- 15.3 Circuit Interrupters
- 15.4 Air Circuit Breakers
- 15.5 Vacuum Circuit Breakers
- 15.6 Oil Circuit Breakers
- 15.7 Interrupter Switches
- 15.8 Gas-Insulated Substations and Gas-Insulated Equipment
- 15.9 Auxiliary Equipment
- 15.10 Torque Tables
- Chapter 16 Motor Control Equipment [Go to Page]
- 16.1 Introduction
- 16.2 Components and Maintenance of Motor Controls
- 16.3 Enclosures
- 16.4 Bus Bar, Wiring, and Terminal Connections
- 16.5 Disconnects
- 16.6 Molded Case Breakers
- 16.7 Fuses
- 16.8 Contactors
- 16.9 Motor Overload Relays — Thermal Types
- 16.10 Pilot and Miscellaneous Control Devices
- 16.11 Interlocks
- Chapter 17 Insulated-Case/Molded-Case Circuit-Breakers [Go to Page]
- 17.1 Introduction
- 17.2 Application Considerations
- 17.3 Phase-Fault Current Conditions
- 17.4 Ground-Fault Tripping
- 17.5 Types of Insulated-Case/Molded-Case Circuit Breakers
- 17.6 Special-Purpose Breakers
- 17.7 Types of Maintenance
- 17.8 Inspection and Cleaning
- 17.9 Loose Connections
- 17.10 Mechanical Mechanism Exercise
- 17.11 Electrical Testing
- Chapter 18 Fuses [Go to Page]
- 18.1 Fuses Rated 1000 Volts or Less
- 18.2 Fuses Rated over 1000 Volts
- Chapter 19 Power Cables [Go to Page]
- 19.1 Introduction
- 19.2 Visual and Mechanical Inspection
- 19.3 Aerial Installations
- 19.4 Raceway Installations
- 19.5 Electrical Testing
- 19.6 Inspection and Testing Records
- Chapter 20 Cable Tray and Busway [Go to Page]
- 20.1 Introduction
- 20.2 Cable
- 20.3 Cable Tray
- 20.4 Low-Voltage (600-Volt) Busway
- Chapter 21 Power and Distribution Transformers [Go to Page]
- 21.1 Introduction
- 21.2 Liquid-Filled Transformers
- 21.3 Dry-Type Transformers
- Chapter 22 Electronic Equipment [Go to Page]
- 22.1 Introduction
- 22.2 Reasons for Maintenance
- 22.3 Special Precautions
- 22.4 Preventive Maintenance Operations
- Chapter 23 Lighting [Go to Page]
- 23.1 Introduction
- 23.2 Cleaning
- 23.3 Relamping
- 23.4 Voltage
- 23.5 Lamps and Ballasts
- 23.6 Disposal
- Chapter 24 Wiring Devices [Go to Page]
- 24.1 Introduction
- 24.2 Connector and Receptacle
- 24.3 Receptacles
- 24.4 Adapters
- 24.5 General-Use Snap Switches
- 24.6 Cover Plates
- 24.7 Boxes
- 24.8 Pin and Sleeve Devices
- Chapter 25 Rotating Equipment [Go to Page]
- 25.1 Introduction
- 25.2 Safety Precautions
- 25.3 Stator and Rotor Windings
- 25.4 Brushes, Collector Rings, and Commutators
- 25.5 Bearings and Lubrication
- 25.6 Cleaning and Drying Insulation Structures
- 25.7 General Overhaul
- 25.8 Records
- 25.9 Testing
- 25.10 Energy Efficiency of Motors
- Chapter 26 Vibration [Go to Page]
- 26.1 Introduction
- 26.2 Machine Vibration
- 26.3 Types of Instruments
- 26.4 Resonance
- 26.5 Methods of Balance
- 26.6 Assembly and Installation Guidelines
- 26.7 Baseline Data
- 26.8 Noise
- Chapter 27 Hazardous (Classified) Location Electrical Equipment [Go to Page]
- 27.1 Types of Equipment
- 27.2 Maintenance of Electrical Equipment for Use in Hazardous (Classified) Locations
- Chapter 28 Uninterruptible Power Supply (UPS) Systems [Go to Page]
- 28.1 Introduction
- 28.2 Types of UPS Systems
- 28.3 UPS System Maintenance Procedures — General
- 28.4 UPS Testing
- 28.5 System Tests
- Chapter 29 Portable Electrical Tools and Equipment [Go to Page]
- 29.1 Introduction
- 29.2 Employee Training
- 29.3 Tool Maintenance
- 29.4 Cord and Attachment Plug Care
- 29.5 Extension Cords
- 29.6 Major Overhauls
- 29.7 Leakage Current Testing
- Chapter 30 Reliability-Centered Maintenance (RCM) [Go to Page]
- 30.1 Reliability-Centered Maintenance (RCM)
- 30.2 Operations and Maintenance (O&M) Documentation
- 30.3 Technical Support
- 30.4 Availability Metric
- Chapter 31 EPM from Commissioning (Acceptance Testing) Through Maintenance [Go to Page]
- 31.1 Introduction
- 31.2 Purpose
- 31.3 Requirements
- 31.4 Commissioning Planning Stages
- 31.5 Developing of Functional Performance Tests (FPTs)
- 31.6 Testing Implementation
- 31.7 Costs of Commissioning
- Chapter 32 Electrical Disaster Recovery [Go to Page]
- 32.1 Introduction
- 32.2 Catastrophic Event Categories
- Chapter 33 Photovoltaic Systems [Go to Page]
- 33.1 Introduction
- 33.2 Maintenance of the Photovoltaic System
- 33.3 Markings and Labeling
- Chapter 34 Electric Vehicle Charging Systems [Go to Page]
- 34.1 Introduction
- 34.2 Maintenance of the Electric Vehicle Charging Stations
- Chapter 35 Wind Power Electric Systems and Associated Equipment [Go to Page]
- 35.1 Introduction
- 35.2 Towers and Foundations
- 35.3 Yaw Systems
- 35.4 Generators
- 35.5 Pitch Systems
- 35.6 Instrumentation and Controls
- 35.7 Supervisory Control and Data Acquisition System (SCADA)
- 35.8 Transformers and Converters
- 35.9 Circuit Breakers
- 35.10 Cable Support Systems, Cables, and Terminations
- 35.11 Collector Substations and Switchgear
- 35.12 Associated Electrical Equipment
- Annex A Explanatory Material
- Annex B How to Instruct
- Annex C Bibliography
- Annex D Informational References
- Annex E Suggestions for Inclusion in a Walk-Through Inspection Checklist
- Annex F Symbols
- Annex G Diagrams
- Annex H Forms
- Annex I NEMA Configurations
- Annex J Primary Contact Matrix
- Annex K Long-Term Maintenance Guidelines
- Annex L Maintenance Intervals
- Annex M Equipment Storage and Maintenance During Construction
- Annex N Reliability Centered Maintenance
- Annex O Energy Efficiency of Motors
- Annex P Identification of Transformers by Cooling Class
- Index
- backmatterd.pdf [Go to Page]
- Untitled [Go to Page]