Author: Harvey N. Holzman

Modern Commercial Wiring covers safety, tools, installation, maintenance, troubleshooting, and design, providing effective, student-friendly instruction regarding the complex wiring requirements associated with commercial installations. Updated to the current 2023 National Electrical Code® (NEC), the text provides many opportunities for learning, researching, and applying the code. Specialized areas, such as motor control, emergency power systems, hazardous locations, and pool and fountain installations, are included.

Table of Contents

Abbreviated Contents

Modern Commercial Wiring 9e, Online Textbook

• Modern Commercial Wiring
• Copyright © 2024 by The Goodheart-Willcox Company, Inc.
• Preface
• About the Author
• Reviewers
• Acknowledgments
• New to This Edition
• Features of the Textbook
• • Chapter Opening Materials
  • Additional Features
  • Illustrations
  • End-of-Chapter Content
• Tools for Student and Instructor Success
• • Student Tools
  • Instructor Tools
• The National Electrical Code ®
• Brief Contents
• Contents
• Chapter 1 Electrical Fundamentals Review
• • Chapter 1 Chapter Outline
  • Chapter 1 Objectives
  • Chapter 1 Technical Terms
  • Chapter 1 Introduction
  • 1.1 Basic Electrical Circuit Units
  • 1.2 Basic Circuits
  • 1.3 Alternating Current
  • 1.4 Utilization Voltages
  • Chapter 1 Summary
  • Chapter 1 Know and Understand
  • Chapter 1 Apply and Analyze
  • Chapter 1 Critical Thinking
• Chapter 2 Safety
• • Chapter 2 Chapter Outline
  • Chapter 2 Objectives
  • Chapter 2 Technical Terms
  • Chapter 2 Introduction
  • 2.1 Cause of Accidents
  • 2.2 Accident Prevention
  • 2.3 Helping an Injured Worker
  • 2.4 First Aid Preparation
  • Chapter 2 Summary
  • Chapter 2 Know and Understand
  • Chapter 2 Apply and Analyze
  • Chapter 2 Critical Thinking
• Chapter 3 Tools
• • Chapter 3 Chapter Outline
  • Chapter 3 Objectives
  • Chapter 3 Technical Terms
  • Chapter 3 Introduction
  • 3.1 Standard Construction Tools
  • 3.2 Electrical Tools
  • Chapter 3 Summary
  • Chapter 3 Know and Understand
  • Chapter 3 Apply and Analyze
  • Chapter 3 Critical Thinking
• Chapter 4 Electrical Prints, Specifications, and Codes
• • Chapter 4 Chapter Outline
  • Chapter 4 Objectives
  • Chapter 4 Technical Terms
  • Chapter 4 Introduction
  • 4.1 Electrical Print Reading
  • 4.2 Electrical Specifications
  • 4.3 Building Codes
  • Chapter 4 Summary
  • Chapter 4 Know and Understand
  • Chapter 4 Apply and Analyze
  • Chapter 4 Critical Thinking
  • Chapter 4 Know the Code
• Chapter 5 Wiring Methods
• • Chapter 5 Chapter Outline
  • Chapter 5 Objectives
  • Chapter 5 Technical Terms
  • Chapter 5 Introduction
  • 5.1 General Rules and Requirements
  • 5.2 Wiring Methods
  • 5.3 Working with Conduit
  • Chapter 5 Summary
  • Chapter 5 Know and Understand
  • Chapter 5 Apply and Analyze
  • Chapter 5 Critical Thinking
  • Chapter 5 Know the Code
• Chapter 6 Conductors
• • Chapter 6 Chapter Outline
  • Chapter 6 Objectives
  • Chapter 6 Technical Terms
  • Chapter 6 Introduction
  • 6.1 Conductors
  • 6.2 Code Requirements for Conductors
  • 6.3 Allowable Ampacities in Conductors
  • 6.4 Voltage Drop
  • 6.5 Conduit Capacity
  • Chapter 6 Summary
  • Chapter 6 Know and Understand
  • Chapter 6 Apply and Analyze
  • Chapter 6 Critical Thinking
  • Chapter 6 Know the Code
• Chapter 7 Boxes and Conduit Bodies
• • Chapter 7 Chapter Outline
  • Chapter 7 Objectives
  • Chapter 7 Technical Terms
  • Chapter 7 Introduction
  • 7.1 Enclosures
  • 7.2 Enclosure Sizing
  • 7.3 Outlet and Device Boxes
  • Chapter 7 Summary
  • Chapter 7 Know and Understand
  • Chapter 7 Apply and Analyze
  • Chapter 7 Critical Thinking
  • Chapter 7 Know the Code
• Chapter 8 Overcurrent Protection
• • Chapter 8 Chapter Outline
  • Chapter 8 Objectives
  • Chapter 8 Technical Terms
  • Chapter 8 Introduction
  • 8.1 Overcurrent
  • 8.2 Overcurrent Protection Requirements
  • 8.3 Overcurrent Protective Devices
  • 8.4 Conductor Taps
  • Chapter 8 Summary
  • Chapter 8 Know and Understand
  • Chapter 8 Apply and Analyze
  • Chapter 8 Critical Thinking
  • Chapter 8 Know the Code
• Chapter 9 Service and Distribution
• • Chapter 9 Chapter Outline
  • Chapter 9 Objectives
  • Chapter 9 Technical Terms
  • Chapter 9 Introduction
  • 9.1 Service
  • 9.2 Distribution Systems
  • Chapter 9 Summary
  • Chapter 9 Know and Understand
  • Chapter 9 Apply and Analyze
  • Chapter 9 Critical Thinking
  • Chapter 9 Know the Code
• Chapter 10 Transformers
• • Chapter 10 Chapter Outline
  • Chapter 10 Objectives
  • Chapter 10 Technical Terms
  • Chapter 10 Introduction
  • 10.1 Transformer Theory
  • 10.2 Transformer Varieties
  • 10.3 Transformer Installation
  • 10.4 Grounding
  • 10.5 Overcurrent Protection
  • 10.6 Transformer Connections and Wiring Diagrams
  • Chapter 10 Summary
  • Chapter 10 Know and Understand
  • Chapter 10 Apply and Analyze
  • Chapter 10 Critical Thinking
  • Chapter 10 Know the Code
• Chapter 11 Grounding
• • Chapter 11 Chapter Outline
  • Chapter 11 Objectives
  • Chapter 11 Technical Terms
  • Chapter 11 Introduction
  • 11.1 Electrical Grounding
  • 11.2 System Grounding
  • 11.3 Equipment Grounding
  • 11.4 Grounding Electrode Systems
  • 11.5 Grounding Methods
  • Chapter 11 Summary
  • Chapter 11 Know and Understand
  • Chapter 11 Apply and Analyze
  • Chapter 11 Critical Thinking
  • Chapter 11 Know the Code
• Chapter 12 Branch Circuits and Feeders
• • Chapter 12 Chapter Outline
  • Chapter 12 Objectives
  • Chapter 12 Technical Terms
  • Chapter 12 Introduction
  • 12.1 Definitions
  • 12.2 Branch Circuits
  • 12.3 Branch-Circuit Loads
  • 12.4 Feeders
  • 12.5 Summary of Commercial Service Load Computation Procedure
  • 12.6 Sample Problems
  • Chapter 12 Summary
  • Chapter 12 Know and Understand
  • Chapter 12 Apply and Analyze
  • Chapter 12 Critical Thinking
  • Chapter 12 Know the Code
• Chapter 13 Motors
• • Chapter 13 Chapter Outline
  • Chapter 13 Objectives
  • Chapter 13 Technical Terms
  • Chapter 13 Introduction
  • 13.1 Motor Theory
  • 13.2 Motor Types
  • 13.3 Motor Circuit Conductors
  • 13.4 Overcurrent Protection
  • 13.5 Power Factor
  • Chapter 13 Summary
  • Chapter 13 Know and Understand
  • Chapter 13 Apply and Analyze
  • Chapter 13 Critical Thinking
  • Chapter 13 Know the Code
• Chapter 14 Motor Controls
• • Chapter 14 Chapter Outline
  • Chapter 14 Objectives
  • Chapter 14 Technical Terms
  • Chapter 14 Introduction
  • 14.1 Motor Controllers
  • 14.2 Motor Control Circuits
  • 14.3 Motor Control Connections
  • 14.4 Motor Control Centers
  • Chapter 14 Summary
  • Chapter 14 Know and Understand
  • Chapter 14 Apply and Analyze
  • Chapter 14 Critical Thinking
  • Chapter 14 Know the Code
• Chapter 15 Emergency Power
• • Chapter 15 Chapter Outline
  • Chapter 15 Objectives
  • Chapter 15 Technical Terms
  • Chapter 15 Introduction
  • 15.1 Emergency Power Systems
  • 15.2 Standby Power Systems
  • Chapter 15 Summary
  • Chapter 15 Know and Understand
  • Chapter 15 Apply and Analyze
  • Chapter 15 Critical Thinking
  • Chapter 15 Know the Code
• Chapter 16 Hazardous Locations
• • Chapter 16 Chapter Outline
  • Chapter 16 Objectives
  • Chapter 16 Technical Terms
  • Chapter 16 Introduction
  • 16.1 Explosions
  • 16.2 Hazardous Locations
  • 16.3 Class I Locations
  • 16.4 Class II Locations
  • 16.5 Class III Locations
  • 16.6 Repair and Storage Garages
  • 16.7 Aircraft Hangars
  • 16.8 Motor Fuel Dispensing Facilities
  • 16.9 Spraying, Dipping, and Coating
  • Chapter 16 Summary
  • Chapter 16 Know and Understand
  • Chapter 16 Apply and Analyze
  • Chapter 16 Critical Thinking
  • Chapter 16 Know the Code
• Chapter 17 Pools and Fountains
• • Chapter 17 Chapter Outline
  • Chapter 17 Objectives
  • Chapter 17 Technical Terms
  • Chapter 17 Introduction
  • 17.1 Receptacles
  • 17.2 Luminaires
  • 17.3 Overhead Conductors
  • 17.4 Bonding
  • 17.5 Grounding
  • 17.6 Storable Pools
  • 17.7 Spas, Hot Tubs, and Similar Installations
  • Chapter 17 Summary
  • Chapter 17 Know and Understand
  • Chapter 17 Apply and Analyze
  • Chapter 17 Critical Thinking
  • Chapter 17 Know the Code
• Chapter 18 Maintenance and Troubleshooting
• • Chapter 18 Chapter Outline
  • Chapter 18 Objectives
  • Chapter 18 Technical Terms
  • Chapter 18 Introduction
  • 18.1 Troubleshooting
  • 18.2 Testing
  • 18.3 Troubleshooting Motors
  • Chapter 18 Summary
  • Chapter 18 Know and Understand
  • Chapter 18 Apply and Analyze
  • Chapter 18 Critical Thinking
• Appendix A Trade Math Review
• • Why Math?
  • Calculators
  • PRO TIP
  • Whole Numbers
  • Fractions
  • Reading a Ruler
  • Decimals
  • Converting Common Fractions to Decimals and Rounding Off
  • Converting Decimals to Common Fractions
  • Metrics in Construction
  • Equations
  • Area Measure
  • Volume Measure
  • Exponents
  • Working with Right Angles
  • Computing Averages
  • Percent and Percentage
  • Graphs
  • Estimating
• Appendix B MasterFormat Reference Section
• Glossary
• • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • L
  • M
  • N
  • O
  • P
  • R
  • S
  • T
  • U
  • V
  • W
• Index of Code References
• Index
• • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • R
  • S
  • T
  • U
  • V
  • W