NFPA 70B: Recommended Practice for Electrical Equipment Maintenance

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2013 NFPA 70B
Prior Years Prior Editions of NFPA 70B

Electrical systems are the lifeblood of your business. Get up-to-code with the 2013 NFPA 70B now!

Preventive maintenance is critical to the reliability of your electrical systems. Protect your facility, your, business, and your employees with the 2013 edition of NFPA 70B: Recommended Practice for Electrical Equipment Maintenance. It has the solid guidance you need to develop and carry out an effective Electrical Preventive Maintenance (EPM) program for all types of equipment and assemblies.

Guard against failures and malfunctions by working with the latest guidelines, including:

  • New chapter on electrical disaster recovery provides detailed coverage of the maintenance tasks related to pre- and post-emergency actions which are critical to resuming production and re-establishing a safe workplace.
  • New chapter on photovoltaic systems addresses maintenance considerations unique to the modules, arrays, and other PV system equipment installed at industrial, commercial, institutional, and municipal facilities.
  • New chapter on electrical vehicle charging systems provides guidance in a emerging industry to ensure that electric vehicle supply equipment (EVSE) can safely interface with the charging equipment.
  • New chapter on wind power electric systems and associated equipment covers maintenance considerations unique to the turbines, towers, and other system equipment to ensure the ongoing safe operation of these systems.
  • New section on arc flash and a new Arc Flash Hazard Analysis Study was added meet OSHA requirements and improve worker protection.
  • New section on counterfeit components, devices, tool, and equipment added to Chapter 6 to address the increase in sales of these items, which are often difficult to distinguish in general appearance, but may fail to operate properly which can result in damage to other equipment and/or life.

Electrical hazards impact safety and your company's bottom line. Order today to avoid worker injuries and costly equipment breakdowns!

Be proactive about safety -- maintain equipment with 2013 NFPA 70B as your guide. It's essential for engineering and maintenance professionals, plant electricians, electrical maintenance supervisors, and in-house and field personnel. (Softbound, 283 pp., 2013)

NFPA 70B Recommended Practice for Electrical Equipment Maintenance 2013 Edition

Chapter 1 Administration
1.1 Scope
1.2 Purpose
Chapter 2 Referenced Publications
2.1 General
2.2 NFPA Publications
2.3 Other Publications
2.4 References for Extracts in Recommendations Sections
Chapter 3 Definitions
3.1 General
3.2 NFPA Official Definitions
3.3 General Definitions
Chapter 4 Why an Effective Electrical Preventive Maintenance (EPM) Program Pays Dividends
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?
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
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
7.1 Introduction
7.2 Grounding of Equipment to Provide Protection for Electrical Maintenance Personnel
Chapter 8 Fundamentals of Electrical Equipment Maintenance
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
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
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
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
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
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
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
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
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
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
18.1 Fuses Rated 1000 Volts or Less
18.2 Fuses Rated over 1000 Volts
Chapter 19 Power Cables
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
20.1 Introduction
20.2 Cable
20.3 Cable Tray
20.4 Low-Voltage (600-Volt) Busway
Chapter 21 Power and Distribution Transformers
21.1 Introduction
21.2 Liquid-Filled Transformers
21.3 Dry-Type Transformers
Chapter 22 Electronic Equipment
22.1 Introduction
22.2 Reasons for Maintenance
22.3 Special Precautions
22.4 Preventive Maintenance Operations
Chapter 23 Lighting
23.1 Introduction
23.2 Cleaning
23.3 Relamping
23.4 Voltage
23.5 Lamps and Ballasts
23.6 Disposal
Chapter 24 Wiring Devices
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
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
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
27.1 Types of Equipment
27.2 Maintenance of Electrical Equipment for Use in Hazardous (Classified) Locations
Chapter 28 Uninterruptible Power Supply (UPS) Systems
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
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)
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
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
32.1 Introduction
32.2 Catastrophic Event Categories
Chapter 33 Photovoltaic Systems
33.1 Introduction
33.2 Maintenance of the Photovoltaic System
33.3 Markings and Labeling
Chapter 34 Electric Vehicle Charging Systems
34.1 Introduction
34.2 Maintenance of the Electric Vehicle Charging Stations
Chapter 35 Wind Power Electric Systems and Associated Equipment
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