The EUCI Electric Distribution Design Basics course provides a fundamental understanding to safe and durable line construction requirements and techniques. The course begins with a review of basic electrical terminology and moves into an introduction of overhead line construction. All components are well defined. Special emphasis will be placed on single-phase line construction, single-phase service for residential and commercial utility customers. This course folds in applicable sections of the latest version National Electric Safety Code, effective February 2023.
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
Agenda
TUESDAY, DECEMBER 13, 2022
9:00 a.m. – 5:00 p.m. : CENTRAL TIME
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 , DECEMBER 14, 2022
9:00 a.m. – 12:00 p.m. : CENTRAL TIME
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
Instructors
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’s Cooper 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). More recently, Jerry develops and conducts professional development programs on various power delivery topics for EUCI.