Designing Overhead and Underground Electrical Customer Services

  • 22 Apr 2022
  • 12:00 PM (EDT)
  • 30 Dec 2022
  • 3:30 PM (EST)
  • Online, you will receive a link


  • One person will be listed as primary registrant, the rest should be listed as guests. This enables the per person discount. Each person must provide full registration information.


 Designing Overhead and Underground Electrical Customer Services


Earn a certificate for 3.0 PDHs 
(Professional Development Hours)

Participants in this mini course will learn how to establish and apply criteria for the sizing of distribution transformers, overhead service conductors, and underground service cables based on the estimated customer load. The course provides an overview of voltage drop calculations and how to meet service voltage requirements with consideration of customer demand and power factor, service conductor/cable size and length, and short-term voltage variations due to motor starting. Presentations and application examples will also include NESC and practical considerations for overhead service pole locations, NESC service span and attachment clearances, underground transformer and junction box locations, and easements.

We combine real-time instructor-facilitated presentations with videos and photos, quizzes, live polling, Q&A sessions, and group discussions. You will receive a certificate via email for 3.0 Professional Development Hours upon completion.


Overhead Service Planning & Design

• NESC and NEC basic requirements

• Overhead service drop design

   considerations & standards

Underground Service Planning & Design

• NESC and NEC basic requirements

• Underground service lateral design

   considerations & standards

Underground Subdivision Layouts

• Design & layout criteria

• Application example


R. John Miner, P.E. is an accomplished executive manager and educator with over 45 years of experience in the electric utility industry. He is president of Collaborative Learning, Inc., of Austin and San Antonio, Texas and has been an APPA instructor for more than 30 years and an instructor for the University of Wisconsin for 20 years. Before forming his own company, he worked for the Austin, Texas, Electric Utility Department, Rochester Public Utilities in Minnesota, and as an assistant professor for the University of Houston. John earned a Bachelor of Science degree in electrical engineering (with honors), and a Master of Science degree in engineering science, both from the University of Toledo.  John is a Senior Life Member of the IEEE and is a registered Professional Engineer in the states of Texas and Minnesota.

Tom Black, P.E. is an accomplished engineer and executive manager who works with Collaborative Learning as a technical consultant and continuing education program developer and instructor. Tom has more than thirty (30) years of experience in the electric and gas utility industries including employment with both municipal and Investor-owned utilities. Tom teaches courses on such topics as electrical distribution principles, overhead and underground distribution systems, the NESC, electric system planning, construction, operations, and maintenance. Tom earned his bachelor’s degree from Washington University in St. Louis (with honors) and is a registered professional engineer in the states of Colorado and Arizona. He is a member of the Institute of Electrical and Electronics Engineers (IEEE).


In case you miss any part of the course or want to review it, your registration includes full access to the mini-course recording for 30 days.

Individual: . . . . . . . . . . . . . . .$295

Group of 3 or more: . . . . . . .$245 each

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