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Research Status & Deliverables

Research Updates for Project P36.001

Task: Reliable Performance of Transmission Cable Accessories
Task Description: Built on prior EPRI research, this multi-year effort continues to investigate the reliability of transmission cable accessories. Included are technical and investigation results from accelerated aging tests at EPRI’s Lenox, Massachusetts laboratory, material deterioration test results on field-aged cable accessories, and results of the evaluation of condition assessment tools.

Task: Underground Transmission Workstation: Functional and Technical Enhancements and Developments
Task Description: The Underground Transmission Workstation (UTW) is an easy-to-use tool for cable engineers to plan, design, operate, and maintain their extruded and laminar dielectric cable systems. The project team is updating and enhancing the functionality of UTW based on EPRI research results.

Task: Pipe-Type to Extruded Dielectric Cable Conversion—Technology, Design, and Construction Options
Task Description: The report includes assessment of converting existing pipe-type cables using extruded dielectric cables and existing pipe alignments. The project will evaluate available solutions, identify leading industry practices, present any novel ideas for design and installation of extruded cables and accessories in steel pipes, and provide guidelines and recommendations for such conversions.

Task: Underground Transmission Cable System Construction and Installation Practices Manual
Task Description: Recent advances in underground transmission have led to more demand for best practices and innovative ways to reduce construction and installation costs. This task identifies and assesses advanced designs and innovative construction/installation techniques that would contribute to improved operation performance and reduced overall project costs.

Task: Underground Transmission Vault Inspection Using Robotic Techniques
Task Description: To improve worker safety and reduce circuit outage requirements, this task continues the investigation of underground transmission vault inspection techniques. Concepts and prototype robotic techniques have been demonstrated in laboratory and field manholes.

Task: Industrywide Performance and Failure Database for Underground Transmission Cables and Accessories
Task Description: Central to effective asset management is knowledge of the failure rate of specific components based on age, family, make, model, application, and environment. This task is a multi-year effort to gather available information on underground transmission cable and accessory performance issues, and failures of both extruded and laminar dielectric cable systems.

Planned Deliverables for 2024

Product ID Name Type
TBD

Reliable Performance of Transmission Cable Accessories: Long-Term Aging Test Result—2024 Update

Report

TBD

Underground Transmission Workstation: Functional and Technical Enhancements and Developments

Software

TBD

Pipe-Type to Extruded Dielectric Cable Conversion—Technology, Design, and Construction Options

Report

TBD

Pipe-Type to XLPE Cable Conversion—Technology, Design, and Construction Options

Report

TBD

Underground Transmission Cable System Construction and Installation Practices Manual – 2024 Update

Report

TBD

Underground Transmission Vault Inspection Using Robotic Techniques

Report

TBD

Industrywide Performance and Failure Database for Underground Transmission Cables and Accessories – 2024 Update

Report


2023 Deliverables

Product ID Name Type
3002027195

Reliable Performance of Transmission Cable Accessories - Long-term Aging Test Result - 2023 Update

Report

3002027199

Underground Transmission Workstation (UTW) v7.9

Software

3002027196

PRE-SW: Underground Transmission Workstation (UTW) v7.9 Beta

Software

3002027202

Underground Transmission Cable System Construction and Installation Practices Manual—2023 Update

Report

3002027203

Underground Transmission Vault Inspection Using Robotic Techniques—2023 Update

Report

3002027205

Industrywide Performance and Failure Database for Underground Transmission Cables and Accessories—2023 Update

Report


Key Deliverables

Product ID Name Type
3002027200

Extruded-Dielectric Pipe-Type Cable (EP Cable) for Installation in Steel Pipe – 2023 Update

Report

3002021268

Underground Transmission Cable System Construction and Installation Practices Manual

Report

3002019117

Primer for Installation of High-Voltage Cable in Tunnels

Report

3002015512

Concept Evaluation of Pipe Bursting for Installation of Extruded Dielectric Cables

Report

3002012433

Feasibility Assessment of Pipe-Type Cable to Extruded Cable Conversion

Report