Overhead Transmission
Program 35
Program At-a-Glance | Applications | Active Supplemental Projects | Contacts | 2025 Planned Research
The EPRI Overhead Transmission research is designed to address the research needs of transmission asset owners and operators. The program offers a portfolio of tools and information focused on components (such as conductors, insulators, compression connectors, and composite structures) and, system issues (such as lightning and grounding, live working, transmission capacity and inspection and assessment. This site provides participants a way to interact with research results and stay involved with ongoing projects.
Inspecting and Assessing Overhead Transmission Lines
Transmission Line Inspection and Assessment (P35.001) and Connector Management (P35.004).
Transmission Line Corrosion
Conductor and Hardware Corrosion Management (P35.002) and Structure and Subgrade Corrosion Management (P35.003)
Transmission Line Design
Ductile Iron and Composite Structure Management (P35.005), Overhead Line Design (P35.007), and Enhancing Transmission Line Resiliency (P35.008)
Transmission Line Insulators
Polymer Insulators (P35.011) and Glass and Porcelain Insulators (P35.012)
Increased Overhead Transmission Capacity
Line Ratings (P35.013), High Temperature Operation (P35.014) and Advanced Conductors (P35.015)