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
Live Working Task Force February 19-22 (In-person)
February 26-29 (Virtual)
Charlotte, NC Meeting Materials
EPRI R&D Project Update Webcast: P35.010 Live Working May 21
11:00 am - 12:00 pm ET
Webcast
Overhead Transmission 2024 ARP Rollout #1 June 12
11:00 am - 12:30 pm ET
Webcast Add to calendar
Overhead Transmission 2024 ARP Rollout #2 July 16
2:00 pm - 3:30 pm ET
Webcast Add to calendar
Live Working Task Force August 19-22 (In-person)
August 26-29 (Virtual)
Charlotte, NC Register here
EPRI End of Year Webcast: P35.010 Live Working November 27
11:00 am - 12:00 pm ET
Webcast