Troubleshooting and Repairing Commercial Electrical Equipment
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Troubleshooting and Repairing Commercial Electrical Equipment

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Troubleshooting and Repairing Commercial Electrical Equipment by David Herres

About the PDF Book Author

David Herres is the owner and operator of a residential and commercial construction company. He obtained a Journeyman Electrician’s License in 1975, and has certificates in welding and wetland delineation, along with experience with elevators.

Beginning in 2001, Mr. Herres has focused primarily on electrical work, upgrading his license to Master status.

The author of an article for Electrical Construction & Maintenance on complementary writing methods, he has written nearly 70 articles on electrical and telecom topics. Mr. Herres resides in Clarksville, New Hampshire.

Main Contents of Commercial Electrical Equipment PDF Book

  • Troubleshooting Techniques
  • Electric Motors
  • Residential Wiring
  • Commercial and Industrial Wiring
  • Electrical Power Distribution Systems Including Transformers
  • Telephone Systems
  • Audio and Video Equipment
  • Computer Troubleshooting and Repair
  • Understanding Ethernet and Learning to Create a Simple Network
  • Satellite Dishes for Communication Systems
  • Elevators
  • Fire Alarm Systems
  • Troubleshooting Refrigeration Equipment
  • Healthcare Facilities
  • Solar and Wind Power
  • Oscilloscopes Revisited
  • What Lies Ahead?

Preface to Commercial Electrical Equipment PDF Book

This book is offered up in the hope that it will provide a gateway to greater knowledge and expertise in the fascinating field of electronics, and specifically that it will provide the reader with intellectual tools needed to successfully diagnose and repair electrical equipment.

Our primary focus is commercial and industrial machinery, but overlap is inevitable, so we find ourselves considering everything from three-way switches in a residence to the International Space Station in the sky above us.

A certain amount of knowledge is presupposed. It is assumed that the reader, like most people in today’s wired world, knows the difference between direct and alternating current,

That two conductors are (usually) required to complete a circuit, and that receptacles are wired in parallel daisy-chain style while switches are placed in series with the load.

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If you have no idea what I am talking about, consult some of the elementary tutorials that are available online before proceeding. Otherwise, you are good to go.

As for mathematical savvy, we presuppose a knowledge of high-school algebra. You do not need a background in trigonometry or calculus to understand what is discussed in this book.

To review some basics, refer to Stan Gibilisco’s excellent Everyday Math Demystified, Second Edition, McGraw-Hill, 2013. Another helpful reference by the same author is Electricity Demystified, Second Edition, McGraw-Hill, 2012.

Before diving in, please be aware that there are tremendous moral and legal implications whenever you work on an electrical infrastructure or equipment that your co-workers or members of the public may approach.

Every design detail and electrical termination has to be right; otherwise, a hazard is built into your work. The result can range from an inconvenient outage to a tragic inferno.

I have a lot to say about electrical hazard mitigation in my previous McGraw-Hill book, 2011 National Electrical Code Chapter By Chapter.

I have also written numerous magazine articles on electrical topics and many are archived on my website,

I welcome your thoughts and comments. Write to me at [email protected]

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