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Electrical Wiring Industrial, 18E
Copyright 2024

Electrical Wiring Industrial (2023 NEC)


2023 National Electrical Code (NEC)
2023 National Electrical Code (NEC)

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Electrical Wiring Industrial, 18E

18th Edition
Stephen L. Herman

Updated to the 2023 NEC!

Walking you step by step through an industrial building, ELECTRICAL WIRING INDUSTRIAL, 18th Edition, equips you with the basic knowledge and skills you need to safely install wiring systems.

This text is written in easy-to-read language and packed with vivid photographs and illustrations to help you understand key concepts. It is also thoroughly updated to reflect the 2023 National Electric Code, the standard for layout and construction of electrical systems.

Written for industrial wiring courses at two-year community and technical colleges, ELECTRICAL WIRING INDUSTRIAL, 18th Edition, walks learners step-by-step through the basics of installing wiring systems in an industrial building.

A set of blueprints included with the text enables students to apply chapter concepts to a realistic industrial building project as they progress through the content and continue to build practical skills.

This pairing of theory and application helps students understand and meet requirements set forth by the National Electric Code® (NEC®).

Now printed in vibrant full color, the Seventeenth Edition is ideal for engaging today's visual learners, with abundant drawings, schematics, and illustrations to help bring key concepts to life and connect chapter material to real-life applications. ELECTRICAL WIRING INDUSTRIAL, 18th Edition, completes Cengage's NEC-based Electrical Wiring series, which includes ELECTRICAL WIRING RESIDENTIAL and ELECTRICAL WIRING COMMERCIAL. All books in this series have been thoroughly updated to reflect the 2023 NEC, the industry standard for layout and installation of electrical systems.


  • With comprehensive coverage of industrial wiring essentials, the text introduces students to different types of three-phase services, including wye, delta, wye with grounded neutral conductor, delta with B phase ground, and delta high leg services.
  • The text features a full chapter devoted to basic motor controls and Programmable Logic Controllers (PLC), providing detailed coverage of these essential topics.
  • Practical, integrated coverage of relevant mathematical concepts makes it easier for students to master important math skills they will need to succeed on the job, without overwhelming them with needless detail or complexity.
  • Extremely practical and focused on real-world applications, the chapter on motor installation presents detailed instruction on how to size conductors, overloads, short circuit protective devices, and motor starters in a way readers can readily apply on the job.
NEW to this Edition:
  • Now printed in full color, the 18th Edition of ELECTRICAL WIRING INDUSTRIAL has strong visual appeal to engage today's learners, with drawings, schematics, and illustrations throughout the text to help students connect chapter material to real-life applications.
  • The author has added or expanded coverage of key topics important for today's industry professionals, including extended coverage of fuses, and new information on system grounding, zigzag transformers, transformer tap changers, and NEC requirements for transformer installation.
  • The 18th Edition has been thoroughly updated to reflect the 2023 National Electrical Code® (NEC®). With information on relevant NEC standards integrated into step-by-step procedures for selecting conductors for a particular application, power factor correction, and installation of motors and transformers, this text is a valuable resource professionals may want to keep in their tool box.
  • Detailed photographs, diagrams, and illustrations throughout the text have been updated to reflect current industry equipment and standards, helping to clarify critical industrial electricity concepts while preparing students to connect what they learn to real-world professional applications.
  • The new edition features a strong emphasis on safety, with new “Safety Alerts” now featured in the text to highlight the importance of safe professional practices at all times.
    Learning objectives now carefully align technical content to end-of-chapter questions and problems, as well as all supplemental assessments, providing a clear framework to help instructors to plan coursework, assignments, and assessments.
  • The author has added or expanded coverage of key topics important for today's industry professionals, including extended coverage of fuses, and new information on system grounding, zigzag transformers, transformer tap changers, and NEC requirements for transformer installation.


1. Plans and Sitework.
Construction Plans. Explanation of Plan Symbols. Sitework. Testing the Site for Grounding Requirements. Interpreting the Site Plan. Metrics (SI) and the NEC.

2. The Unit Substation.
The High-Voltage Section. Transformer Protection. Overcurrent Protection. Determining Transformer Fuse Size. The Transformer Section. The Low-Voltage Section. The High-Voltage Metering Equipment. Service Entrances. Transformer Maintenance.

3. Feeder Bus System.
Feeder Ducts. The Circuit-Breaker Cubicles. Plug-In Busway. Bus Plugs.

4. Panelboards.
Panelboards. Branch-Circuit Protective Devices. Panelboard Protective Devices. Power Panelboards.

5. Trolley Busways.
Three-Phase Trolley Busways. The Trolley Busway Runs. Lighting in the Manufacturing Area. Lighting in the Boiler Room.

6. Using Wire Tables and Determining Conductor Sizes.
Conductors. Insulation Type. Correction Factors. More than Three Conductors in a Raceway. Underground Conductors. Selecting Conductors for Equipment Installation. Calculating Conductor Sizes and Resistance. Long Wire Lengths. Calculating Resistance. Parallel Conductors. Testing Wire Installations. The American Wire Gauge (AWG).

7. Signaling Systems.
The Master Clock. The Program System. The Paging System. The Fire Alarm System.

8. Basic Motor Controls.
Two-Wire Controls. Three-Wire Controls. Schematic Symbols. Overload Relays. Schematics and Wiring Diagrams. Start–Stop Push-Button Control Circuit. Forward-Reverse Control. Basic Air-Conditioning Circuit. Timing Relays.

9. Motors and Controllers.
The Machines and Their Motors. Motor Types. Single-Speed Squirrel-Cage Induction Motor. The Wound-Rotor Induction Motor. Determining Direction of Rotation for 3-Phase Motors. Connecting Dual-Voltage 3-Phase Motors. Dual-Voltage Single-Phase Motors. Determining Direction of Rotation for Single-Phase Motors. Terminal Identification for Direct-Current Motors. Determining the Direction of Rotation of a Direct-Current Motor. Direct-Current Power Supplies. Variable-Frequency Drives.

10. Motor Installation.
Motor Nameplate Data. Motor Installation. Motor Tables. Direct-Current Motors. Single-Phase Alternating-Current Motors. Two-Phase Motors. Determining Conductor Size for a Single Motor. Overload Size. Overload Heaters. Determining Locked-Rotor Current. Short-Circuit Protection. Multiple Motor Calculations.

11. Power Factor.
Loading on Alternating-Current Circuits. Power Factor Measurement. The Synchronous Condensers. The Tie-In. Correcting Power Factor with Capacitors. Correcting Motor Power Factor. Installing Capacitors. Testing Capacitors.

12. Ventilating, Air Conditioning, and Other Facilities.
The Ventilator and Exhaust System. Special Terminology. The Cooling Equipment. Liquid Chillers. The Precipitation Unit.

13. System Protection.
System Protection. Circuit breakers. Circuit-Breaker Time-Current Characteristic Charts. Fuse Time-Current Characteristic Charts. Ground-Fault Protector Time-Current Characteristic Charts. Coordination.

14. Lightning Protection.
Atomic Structure. How Lightning Is Generated. Master Label. Building Protection. Safety Rules. References.

15. Site Lighting.
Lamp Selection. Illuminance Selections. Power Limitation. Luminaire Placement. Electrical Installation.

16. Programmable Logic Controllers.
Differences Between Programmable Logic Controllers and Personal Computers. Basic Components. Installing Programmable Logic Controllers. The Differential Amplifier.

17. Developing a Program for a PLC.
Assigning Inputs and Outputs. Converting the Schematic.

18. Fiber Optics.
Fiber Optics. Fiber-Optic Connectors. Fiber-Optic Lighting.

19. Hazardous Locations.
Equipment Approval. Intrinsically Safe Circuits and Equipment. Equipment. Seals. Circuit-Breaker Panelboards. Luminaires. Motor Controls. Flexible Cords and Receptacles. Hazardous Areas. Explosion-Proof Equipment.

20. Harmonics.
Harmonic Effects. Circuit-Breaker Problems. Bus Ducts and Panelboard Problems. Determining Harmonic Problems on Single-Phase Systems. Determining Harmonic Problems on 3-Phase Systems. Dealing with Harmonic Problems. Determining Transformer Harmonic Derating Factor.

Appendix: Electrical Specifications.
Code Index.

416 Pages - 8-1/2 x 11 in.

About the Author:

Stephen L. Herman is a retired electrician and teacher with more than 30 years of experience to his credit. A seasoned author, his reader-friendly textbooks on electricity and mathematics are popular with students and instructors alike.

For two decades Mr. Herman was lead instructor for the Electrical Technology Curriculum at Lee College in Baytown, Texas, where he received an Excellence in Education Award from the Halliburton Education Foundation. He also taught at Randolph Community College in Asheboro, N.C., for nine years and helped establish an electrical curriculum for Northeast Texas Community College in Mount Pleasant, Texas.

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This industry-leading text includes the latest motor control and integrated systems technology for instruction of advanced manufacturing skills. The latest test tools, safety practices, and technology have been added to complement the advancing technology of motor starters, motor drives, PLCs, and control devices. - more

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