Transmission Structure Design

Transmission Structure Design

May 11-12, 2023 | Online :: Central Time

“Amazing course, he really took the time to provide us his experience in design.” El Paso Electric

“To say Chris is knowledgeable is an understatement.  He did a great job conducting the class and knows the material very well.” Orange & Rockland Utilities, Inc.

“This course was a refresher of structural analysis material I saw back in school. Good refresher.” Project Engineer, RGrid Power

The increase in reliability and efficiency of electric power has prompted the upgrading and building of new electrical transmission lines across North America. Combined with the retiring of experienced transmission structural engineers, it is vital for incoming structural engineers and project managers to become more familiar with the fundamental aspects of design, manufacturing, innovation, and testing of different types of installations. The EUCI Transmission Structure Design course is intended to provide a deep dive into natural wood poles, steel poles and lattice towers.  Concrete and laminate wood poles will be discussed as a cursory review (many concepts from the other structure types can be carried over). 

Our expert instructor will provide a practical overview of transmission structure design, including:

  • Structure loading
  • Industry standards
  • Electrical clearances effect on structure geometry
  • Detailed design considerations
  • Discussions of direct embedded pole analysis, phase considerations and use the of manuals and tools like PLS-TOWER and PLS-POLE.

Learning Outcomes  

  • Define and describe the different types of transmission structures and when to use them
  • Identify the necessary loading criteria for which to design
  • Examine the applicable design standards and manuals 
  • Apply structural design fundamentals for latticed self-supporting towers, tubular steel structures, guyed structures, and more  
  • Review basic electrical clearances and how they shape structure geometry and design       
  • Examine the appropriate design software applications  
  • Analyze the different methods of testing and when to apply them 
  • Identify the manufacturing and finishing process for towers, poles, and other structures 


    Thursday, May 11, 2023 : Central Time

    12:45 – 1:00 p.m.
    Log In and Welcome

    1:00 – 4:00 p.m.
    Course Timing

    Short breaks will be taken throughout each session

    Transmission Structure: Types and Materials

    • Wood H-Frames
    • Guyed Wood Structures
    • Light Duty Tubular Steel Structures
    • Self-Supporting Tubular Steel Poles & Frames
    • Laminate Wood Structures
    • Concrete and Spun Concrete Poles
    • Lattice Towers

    Phase Configurations

    • Horizontal
    • Delta
    • Vertical
    • Double Circuit

    Tangent Frame Analysis

    • Axis of Contraflexure
    • Wind Loading on Poles
    • Pole Strength
      • Effect of Bolt Hole Direction
    • X-Brace Analysis
      • X-Brace Forces
      • X-Brace Capacity
    • Frame Top Analysis
    • Insulator Swing Analysis
    • PLS-POLE Example

    Guyed Wood Pole Structures

    • Pole Down Forces from Guy Anchors
    • Buckling Modes
    • Guy Tensions
    • Guy Anchor Strength
    • Insulator Swing Calculations
      • Pole Clearances
      • Guy Clearances
    • PLS-POLE Example


    Friday, May 12, 2023 : Central Time

    8:45 – 9:00 a.m.
    Log In

    12:00 – 12:30 p.m.
    Lunch Break

    9:00 a.m. – 4:00 p.m.
    Course Timing

    Short breaks will be taken throughout each session

    Steel Pole Structure Analysis

    • Steel Pole Sections
      • Area
      • Section Modulus
      • Shear Stress
    • Pole Section Stresses
    • Local Buckling
    • Anchor Bolt Reactions
    • Base Plate Stresses
    • Davit Arm Loads and Stresses
      • Arm Section Properties
      • Davit Arm Bolted Connection Analysis
    • Insulator Swing Calculations
    • PLS-POLE Example
      • Base Plate Analysis Mode
      • Insulator Suspension Plate Drop

    Lattice Tower Structural Analysis

    • Base Reactions
    • Arm Design
      • Hanger Straps
      • Arm Member Compression
    • Member Strengths
      • Buckling
        • Strength in 3 Directions
        • Unbraced Length
      • Squash Strength
      • Block Shear Tear-out
      • Net Section Tension Limit
      • Bolt Strength Limitation
    • PLS-TOWER Example
      • Member Capacities and Overrides

    Laminate Wood Structures

    • Pole Sections
    • Arm Analysis

    Concrete Poles

    • Reinforced Concrete Poles
    • Spun Concrete Poles


    Christopher P. Soderman, P.E., Director of Transmission Line Engineering, Eversource Energy Service Company

    Christopher has worked at Eversource Energy for over 20 years in Transmission Line Engineering.  In this role, he has been involved with the design of more than 1,000 circuit miles of transmission.  He has focused on overhead and underground transmission line design, structure analysis, electric and magnetic field analysis, lightning and grounding design, and AC interference with pipelines.  In addition to design work, Christopher has also appeared as an expert witness in both regulatory and legal proceedings.

    Christopher has a Bachelor of Science in Mechanical Engineering from Rensselaer Polytechnic Institute in Troy, NY; a Master of Science in Electrical Engineering from Worcester Polytechnic Institute in Worcester, MA; and a Master of Engineering degree in Civil Engineering and a Master of Business Administration degree from the University of Hartford in West Hartford, CT.  He is a licensed Professional Engineer in the states of Connecticut, Massachusetts, and New Hampshire.

    Christopher lives in Connecticut with his wife and children and enjoys outdoor activities and being a weekend warrior on car repairs.

    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.

    • IMPORTANT NOTE: After November 30 you will not be able to join a Teams meeting using Internet Explorer 11. Microsoft recommends downloading and installing the Teams app if possible. You may also use the Edge browser or Chrome.
    • You will receive a meeting invitation will include a link to join the meeting.
    • Separate meeting invitations will be sent for the morning and afternoon sessions of the course.
      • You will need to join the appropriate meeting at the appropriate time.
    • 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


    Transmission Structure Design

    May 11-12, 2023 | 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 and may be of interest.

    Transmission Line Design

    May 10-11, 2023 | 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 07, 2023 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 and be in attendance for the entirety of the course to be eligible for continuing education credit.   

    Instructional Methods 

    This program will use PowerPoint presentations and group discussions, as well as active participation.

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

    Course CPE Credits: 11.0
    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:



    Who Should Attend   

    • Transmission planners  
    • Transmission & structural engineers
    • Transmission project managers  
    • Regulators and regulator staff  
    • Utility construction contractors and engineering companies   
    • Electrical engineers in T&D design

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