Overview & Events
Project description, task information, and event opportunities
Project Objective
The main objectives of the High Temperature Operation of Overhead Lines Project are to help utilities raise transmission line capacities (higher currents) without detrimental electrical or mechanical effects. This project aims to provide mitigation strategies and technical basis for raising the acceptable operating temperature of overhead transmission lines.
Project Value
This project provides value to our members by:
- providing insight into the mechanical effects high-temperature on conductors, connectors, and attached hardware
- providing insight into the electrical effects of operating conductors at higher current densities
- providing guidance on effective mitigation strategies for operating overhead lines at high temperatures
- providing calculators that:
- determine the surface temperature of conductors with known surface characteristics, ambient conditions, and applied current
- determine the effect of high temperature on the conductor strength and creep
- determine the sag and tension of overhead transmission conductors
- determine the resistance of conductors at various temperatures or applied current
Engagement Opportunities
| Meeting | Date | Location | Information |
|---|---|---|---|
| Increased Overhead Transmission Capacity Task Force | March 10-13 (In-person) March 17-20 (Virtual) |
Charlotte, NC | Register Here |
| EPRI R&D Project Update Webcast: High Temperature Operation (P35.014) | June 17 3:00-3:30 pm ET |
Webcast | |
| Overhead Transmission 2026 ARP Rollout #1 | July 17 10:00 am - 11:00 pm ET |
Webcast | |
| Overhead Transmission 2026 ARP Rollout #2 | July 24 2:00 pm - 3:30 pm ET |
Webcast | |
| Increased Overhead Transmission Capacity Task Force | August 18-22 (In-person) August 25-29 (Virtual) |
Charlotte, NC | |
| EPRI End of Year Webcast: High Temperature Operation (P35.014) | December 9 2:00-2:30 pm ET |
Webcast |