Underground Cable Systems: Principles and Practices

Presented by Power Delivery Consultants, Inc.

Back to Basics! It is becoming increasingly important for utilities to evaluate underground cable alternatives, as overhead rights-of-way become more difficult to locate, and as regulatory agencies require increasing detail on the technical issues and costs associated with underground cables.   When a cable is going to be installed, proper design engineering and construction methods can provide a reliable system at a substantially lower cost.

Expected Learning Objectives / Outcomes

PDC has identified learning objectives we expect each student to obtain on completion of this course.  The student completing this course should be able to:
  1. Identify the three major cable types and their general characteristics
  2. Describe the basic construction of a high voltage transmission cable
  3. Describe the basic installation of a power cable system
  4. List the general studies and calculations that must be performed to complete a cable system design

Overview: Cable utilization practices are changing rapidly, as regards system types, design tools, suppliers, installers, installation methods, accessories, configurations, etc.  This course is intended to provide the engineer with up-to-date information on all aspects of underground transmission systems, from initial planning through design optimization, to final operation and maintenance.
The course focuses on extruded dielectric cables. The following cable types are addressed as well:
Land and submarine cables are included, and voltages from 69 kV to 550 kV are addressed.

Participants: This course is directed toward engineers and planners who need to evaluate underground transmission system alternatives and understand the design and installation of cable systems.

Course Outline

Day 1

Day 2

Day 3


The three-day course will be held at the Alden Beach Resort, 5900 Gulf Boulevard, St. Pete Beach, Florida 33706.  A special rate is available to those attending PDC's course.  The rooms generally have two double beds, living room, and kitchenette.  Please contact the Alden Resort directly at 1-800-237-2530.  Mention the PDC course to obtain the lower rate.  Reservations must be made by 30 days in advance to insure the special rate.  Map of Area


Jay A. Williams,  Principal Engineer, Power Delivery Consultants, Inc.  Mr. Williams has more than 30 years design and application experience in underground cable systems.  He was in charge of Con Edison's Transmission Cable group, and was responsible for major cable application and research projects while at Power Technologies, Inc.  He co-authored the"Underground Transmission" section of the Standard Handbook of Electrical Engineering.  He was technical editor and principal author of the EPRI Underground Transmission Systems Reference Book.
Torben Aabo, Principal Engineer, Power Cable Consultants.  Mr. Aabo joined Phelps Dodge (now BICC) in 1970, and joined Power Technologies, Inc. in 1974. He was responsible for many transmission and distribution cable projects, including ones to increase pipe-type cable section lengths, and to evaluate the reliability and failure mechanisms for transmission cables. He formed Power Cable Consultants in 1995, where he specializes in project development, factory inspection, and failure analysis.

Continuing Education Units
PDC will issue students a course certificate indicating the number of Continuing Education Units for the course completed based on national guidelines and the number of classroom hours.  1.8 Continuing Education Units (CEUs) will be awarded for successful completion of this course. The CEU is the nationally recognized unit for recording participation in noncredit educational programs. One CEU is equal to ten classroom hours.

Tuition and Enrollment:
Tuition covers the cost for this three-day course.  This fee includes extensive course notes, continental breakfast and lunch.  Lodging, transportation, and other meals are not included.