Electric Distribution Design Basics

Electric Distribution Design Basics

May 7-8, 2024 | Online :: Central Time

“Learn all you need to know about designing stuff, I only have a 2 year (associates) degree and now I’m designing like a seasoned pro (or at least that’s what I tell myself)!!” Planner 1, Independence Power & Light

This course is designed for those new to electric distribution design or those with limited experience. Introduction to electrical power concepts and terminology builds the foundation for accepting information regarding construction materials and techniques.

While design criteria change from utility to utility the National Electric Safety Code provide the minimum safety requirements. Much of the instruction in based on the 2023 version of this document.

This course focuses on single phase design and service for both overhead and underground which is a common the entry point for new designers.

Learning Outcomes

  • Define basic electrical terms such as: Components of Ohm’s Law, the impedance triangle and power triangle
  • Review the basic concepts of overhead line design including: Conductor Spacing, Clearances, Structural Loading, Span Length, Line Tension and Guying
  • Review of line equipment necessary for line design: poles, pole peripheral equipment (cross arms, brackets, insulating equipment, conductor, transformers, and protective equipment)
  • Review thorough examination of Single-Phase Line Design as line extension of a three-phase trunk circuit.
  • Gain detailed instruction on the design of single-phase residential service including sizing of conductor and service transformer for multiple dwellings
  • Discuss an introduction to single-phase electric underground distribution including equipment such as cable, HV connecting components and service transformers


Tuesday, May 7, 2024 : Central Time

8:45 – 9:00 a.m.
Log In and Welcome

12:00 – 12:45 p.m.
Lunch Break

9:00 a.m. – 5:00 p.m.
Course Timing


Introductions and Welcome

Power Electrical Concepts and Terminology

    • Voltage, Current, Resistance/Impedance
    • Impedance and Power Triangles

Introduction to National Electric Safety Code 2023

    • Overhead Line Requirements – Part 2
    • Underground Line Requirements – Part 3

Overhead Line Design Fundamentals

    • Line Clearance and Spacing
    • Phase to Phase
    • Phase to Ground
    • Energized Line to Obstructions
    • Span Lengths and Line Tensions

Single-Phase Overhead Line Design

    • Conductor ampacity and strength
    • Pole Material Options
    • Guying

System Protection

    • Overcurrent Protective Devices
    • Fuse Cutouts
    • Reclosers
    • Transient Overvoltage Protective Devices
    • Surge Arresters


Wednesday, May 8, 2024 : Central Time

8:45 – 9:00 a.m.
Log In

9:00 a.m. – 12:00 p.m.
Course Timing

Overhead Single-Phase Service Design

  • Sizing Single-Phase Distribution Transformers
  • Selection of Overhead Service Conductor
  • Meter Base Installation and Grounding
  • Residential Service with EV Charging

Introduction to Underground Design

  • Radial vs. Loop Underground Lines
  • Underground Cable
  • Dead Front Connecting System


Gary Roberts is a Professional Engineer with over 40 years’ experience in the Electric Utility industry, 25 years plus with TXU, worked on international engagements and currently with DRG Technical Solutions.  Gary is a graduate of the University of Texas at Arlington with a BSEE and a graduate of Southern Methodist University with an MBA.

Jerry Josken holds a BS in Electrical Engineering Technology from the Milwaukee School of Engineering and an MBA from North Central College. During his 30+ year career with Eaton Power Systems, Jerry served in a variety of engineering capacities. Past leadership positions include Chair of IEEE Rural Electric Power Conference (2012) and GLEMS Distribution Equipment/Controls (2013-2014). Currently, Jerry develops and conducts professional development programs on various power delivery topics for EUCI.

Online Delivery

We will be using Microsoft Teams to facilitate your participation in the upcoming event. You do not need to have an existing Teams account in order to participate in the broadcast – the course will play in your browser and you will have the option of using a microphone to speak with the room and ask questions, or type any questions in via the chat window and our on-site representative will relay your question to the instructor.

  • Microsoft recommends downloading and installing the Teams app if possible. You may also use the Edge browser or Chrome.
  • You will receive a separate email with a unique link to a personalized landing page which will include links to join all sessions of this event.
  • If you are using a microphone, please ensure that it is muted until such time as you need to ask a question.
  • The remote meeting connection will be open approximately 30 minutes before the start of the course. We encourage you to connect as early as possible in case you experience any unforeseen problems.


Please Note: This event is being conducted entirely online. All attendees will connect and attend from their computer, one connection per purchase. For details please see our FAQ

If you are unable to attend at the scheduled date and time, we make recordings available to all attendees for 7 days after the event


Electric Distribution Design Basics

May 7-8, 2024 | Online
Individual attendee(s) - $ 1195.00 each

Volume pricing also available

Individual attendee tickets can be mixed with ticket packs for complete flexibility

Pack of 5 attendees - $ 4,780.00 (20% discount)
Pack of 10 attendees - $ 8,365.00 (30% discount)
Pack of 20 attendees - $ 14,340.00 (40% discount)

This event is related. A discount for attending both events is available

Three-Phase Electric Distribution Design

May 8-9, 2024 | Online
Individual attendee(s) - $ 1195.00 each

Volume pricing also available

Individual attendee tickets can be mixed with ticket packs for complete flexibility

Pack of 5 attendees - $ 4,780.00 (20% discount)
Pack of 10 attendees - $ 8,365.00 (30% discount)
Pack of 20 attendees - $ 14,340.00 (40% discount)

Your registration may be transferred to a member of your organization up to 24 hours in advance of the event. Cancellations must be received on or before April 05, 2024 in order to be refunded and will be subject to a US $195.00 processing fee per registrant. No refunds will be made after this date. Cancellations received after this date will create a credit of the tuition (less processing fee) good toward any other EUCI event. This credit will be good for six months from the cancellation date. In the event of non-attendance, all registration fees will be forfeited. In case of conference cancellation, EUCIs liability is limited to refund of the event registration fee only. For more information regarding administrative policies, such as complaints and refunds, please contact our offices at 303-770-8800




EUCI is accredited by the International Accreditors for Continuing Education and Training (IACET) and offers IACET CEUs for its learning events that comply with the ANSI/IACET Continuing Education and Training Standard. IACET is recognized internationally as a standard development organization and accrediting body that promotes quality of continuing education and training.

EUCI is authorized by IACET to offer 1.0 CEUs for this event

Requirements for Successful Completion of Program

Participants must log in each day, be in attendance for the entirety of the course.  In addition, attendees are required to participate in Question/Answer Sessions, discussion and share personal experience relevant to the course material.

Instructional Methods

Power Point presentations will include video, charts, graphs and illustration. Attendees are encouraged to participate in open discussion and question throughout the course duration.

Upon successful completion of this event, program participants interested in receiving CPE credits will receive a certificate of completion.

Course CPE Credits: 12.0
There is no prerequisite for this Course.
Program field of study: Specialized Knowledge
Program Level: Basic
Delivery Method: Group Internet Based
Advanced Preparation: None

CpeEUCI is registered with the National Association of State Boards of Accountancy (NASBA) as a sponsor of continuing professional education on the National Registry of CPE Sponsors. State boards of accountancy have final authority on the acceptance of individual courses for CPE credit. Complaints regarding registered sponsors may be submitted to the National Registry of CPE Sponsors through its web site: www.nasbaregistry.org


Who Should Attend

  • Freshman Distribution Line Designers
    • Electrical Utility
    • Electrical Construction Firms
  • Managers responsible for the supervision of Line Design Personnel
  • Line Construction Foreman
  • Procurement Specialist responsible for purchase of line equipment
  • Anyone who needs an understanding of overhead or underground line design