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Underground Transmission Fundamentals

January 10-11, 2022 | Online

Sponsored by EUCI

Click Here to register ($1195)

Underground transmission is a costly and complicated option for transmission projects. This course will provide an in-depth overview of underground systems, technology, construction, and installation. This is the ideal course for engineers new to underground transmission projects, regulatory staff that needs an overview to evaluate project options and vendors and contractors that support utilities as they build new transmission.

Learning Outcomes

  • Review underground transmission technology and systems
  • Examine the basics of underground design and construction
  • Delve into the details of cable design and manufacturing
  • Review the considerations that affect cable system ampacity
  • Discuss the design, operation and maintenance of solid dielectric cable systems
  • Discuss the design, operation and maintenance of high-pressure fluid-filled cable systems                                                      



9:00 a.m. – 5:00 p.m. Central Time

Underground Transmission Technology Overview

  • Available Technology
  • Drivers

Basics of Underground Design

  • Preliminary Design Considerations
  • Route Selection
  • Design Considerations
  • Installation Considerations

Cable Design & Manufacturing

  • Conductor Materials & Design
  • Insulation Materials, Thicknesses and Electrical Stress
  • Shielding Materials and & Design
  • Jacket Materials

Cable System Ampacity

  • Problem Statement
  • Thermal Circuit Model
  • Temperature Limitations (Conductor, Soil)
  • Grounding & Bonding Considerations
  • Backfills
  • Emergency Calculations


9:00 a.m. – 12:00 p.m. Central Time

Review of Day One Materials and Questions

Solid Dielectric Cable Systems

  • Trench Design
  • Manhole & Structure Designs
  • Other Design Considerations
  • Operation and Maintenance

High Pressure Fluid Filled Cable Systems

  • Trench Design
  • Cathodic Protection
  • Manhole & Structure Design
  • Hydraulic System
  • Operation & Maintenance