Definition Sheet (PDF)


Both fluid-filled and XLPE High Voltage Underground cables are an essential part of many urban transmission systems. While they offer a number of distinct advantages in certain environments, they are expensive to maintain and replace. Adding to these maintenance costs, many fluid-filled installations have been in operation since the early twentieth century, and a great number of these systems are being operated outside their original design parameters.

The objective of the Transmission Underground Cables Interest Group (TUCIG) is to provide a forum for the exchange of information on cable asset management and to establish and promote techniques and tools for improving the management of fluid-filled and XLPE High Voltage underground cable systems. The group’s current focus is developing a Reference Manual for Transmission Cable Systems, which will include the compilation of best work practices and procedures for the design, maintenance and operation based on utility experience.

Topics and Issues:

  • Asset Health Index Models
  • Preventative & Corrective Maintenance
  • Strategies for Life Cycle Management
  • Means of Minimizing Environmental Impact
Program Services
  • Networking & Information Sharing

    • Annual face-to-face Business Meetings with webinar call-in options
    • 4-5 conference calls and learning webinars
    • Access to a network of ~1,000 electrical utility peers from around the world
  • Industry Benchmarking

    • Requests for Information where your questions or concerns are circulated to other group
      participants with rapid-fire response rates
    • Internal benchmarking surveys for state-of-the-industry intelligence
  • Collaborative Technical Projects

    • The flexibility to support only those projects which are relevant to your organization, meaning you know exactly, where your research dollars are going
    • Supported by CEATI management, participating utilities and consultants work together across all phases of a project’s life-cycle, ensuring your organization receives practical, high-quality deliverables
  • Unparalleled Return on Investment

    • Ability to split project funding costs with other organizations, resulting in highly-leveraged funding opportunities
    • Reduced pricing on published reports, training courses, and industry-open conferences
Project Portfolio

Ongoing Projects

T183700 3423
Advanced Cable Diagnostic Test Techniques for XLPE, HPFF AND LPFF Cable Systems
T183700 3422
Review of CEATI Health Index Rating and Weighting System
T183700 3411-D7
Transmission Cable Reference Manual: Installation and Inspection
T173700 3421
Transmission Spare Cable Strategy: A Laboratory Assessment of Aged Cables Taken from Spare Cables Stored on Cable Reels
T173700 3411-D6
Transmission Cable Reference Manual: Installation and Inspection
T163700 3411-4
Transmission Cable Reference Manual: Installation and Inspection
T153700 3420
HPFF Joint Casings Corrosion Protection Aging Test
T153700 3411-3
Transmission Cable Reference Manual: Installation and Inspection
T143700 3411-2
Transmission Cable Reference Manual: Installation and Inspection

Completed Projects

T173700 3418B
Submarine Cable Route Maintenance, Revised
T143700 3419
Guide on Factory Inspection and Test Plans for Manufacturing and Delivering XLPE Transmission Cable Systems
T133700 3417
Guide for Development of Business Cases for Replacement of Transmission Cable Assets
T113700 3415
Manhole Entry Safety Practices and Technology
T123700 3416
Best Practices Guide to Underground Power Cable Real-Time Thermal Rating Systems
T083700 3406B
Acceptable Vibration Limits and Forces in the Vicinity of Underground Cables, Phase II
T073700 3414
Grounding and Bonding in Underground Cable Maintenance Work
T093700 3410
Reliably Predicting Underground Cable Life from Endurance and Breakdown Tests
T103700 3411-1
Transmission Cable Reference Manual: Maintenance
T063700 3405B
Cable Health Index Software, Phase 2
See all reports

Webinar Library

City Cables
Available to Utilities Only   Get Access
August 2014
Upcoming Events
TUC Spring 2019 General Meeting & RMTF Meeting
Attendance Open to Electrical Utilities   Request Invitation
April 2019 in Boca Raton, FL, USA