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 2026 National Electrical Code® (NEC), the text provides many opportunities for learning, researching, and applying the code. It also includes specialized areas, such as motor control, emergency power systems, hazardous locations, and pool and fountain installations.

This EARLY RELEASE Online Textbook will be replaced with the Reflowable Online Textbook, coming soon!

Table of Contents

Abbreviated Contents

Modern Commercial Wiring 10e, Online Textbook

• Front Matter
• 1 Electrical Fundamentals Review
• 2 Safety
• 3 Tools
• 4 Electrical Prints, Specifications, and Codes
• 5 Wiring Methods
• 6 Conductors
• 7 Boxes and Conduit Bodies
• 8 Overcurrent Protection
• 9 Service and Distribution
• 10 Transformers
• 11 Grounding
• 12 Branch Circuits and Feeders
• 13 Motors
• 14 Motor Controls
• 15 Emergency Power
• 16 Hazardous Locations
• 17 Pools and Fountains
• 18 Maintenance and Troubleshooting
• Appendix A Trade Math Review
• Appendix B MasterFormat Reference Section
• Glossary
• Index of Code References
• Index