X116/Z119/S188/R187 Transmission Structure Replacements ^{Energized Transmission}

Eversource awarded Harlan Electric the X116/Z119/S188/R187 transmission project in May 2022 to ensure reliability to their customers. This complex structure replacement project required 252 structure replacements across four different 115kV transmission lines in the same right of way. The project involved extensive barehand live line work because a majority (227 of 252) of the replacements — converting existing poles to light duty steel monopoles — needed to be performed under energized conditions.

The Harlan Electric team exhibited exemplary safety on the project and were able to accelerate the project schedule. We also successfully complied with new environmental protections for a number of rare, threatened and endangered species. Our excellent work performance and ability to navigate the challenges of the complex project earned us a 2023 NECA Project Excellence Award.

Photos courtesy of Eversource

Related News: Harlan Electric Earns 2023 NECA Project Excellence Award for Live Line Project

Line Contractor (Electrical Contractor Magazine): Rock-Solid Replacements: Harlan Electric Co. replaces transmission structures in New Hampshire