Balancing the Budget for Renovating Lines: Groundwires, OPGW, Insulation, Earthing & Arresters (Video)
Overhead groundwires are among the first components to fail on overhead transmission lines and their end-of-Life assessment often triggers a mid-life renovation project to ensure many more years of reliable service from an overhead line in a desirable right-of-way. Renovation options should ideally consider replacing OHGW protection with other components. Read More >

Arrester Housing Design & Application
While a composite insulator is made primarily of polymer rubber on the outside and a fiberglass rod or tube on the inside, polymer-housed arresters feature a rubber material on the outside and a strength member binding the MOV disks beneath. Read More >