Overhead T&D

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Insulators' ageing in North America - How about testing them?

Sediver has established in the USA an assembly factory for glass insulators in 2017 but also, and perhaps more interesting for some engineers, a laboratory capable of performing all the tests required by the world’s standards. Large test campaigns have already been conducted in this...

Vegetation Management

Scheduling Vegetation Maintenance Activities

How to adopt best practices to improve reliability and reduce costs BY PHILIP CHARLTON, Utility Arborist Association Electric utilities have always faced the challenge of determining the optimum frequency of maintenance operations for the control of trees and brush growing near the electric system....

Infrastructure & Technologies

CIP Compliance Yields Security Complacency

As the big push behind NERC CIP v5/v6 comes to some form of “conclusion”, most U.S. utility executives are breathing a huge sigh of relief. Their efforts to make their high and medium impact facilities compliant are finally completing. However for some insiders, there is a concern that a...

Pole Line Hardware

Transmission Line Resiliency

Resiliency is a term used more and more by transmission line stakeholders including designers, operators, and owners. Resilience is simply defined as toughness or the capacity to recover quickly from difficulties. It can be used to describe a system, an object or even a person. Dr. Ginsburg, child...

Distribution Protection

Underground Distribution Sensors

Exploring the benefits of wide-area monitoring BY TED MYERS, On-Ramp Wireless The average citizen and business experiences over 120 minutes of electricity outage duration a year. This has a significant societal impact costing 10s to hundreds of billions of dollars annually. Furthermore, the measure...

Case Study

United Power Installs Hendrix Aerial Spacer Cable Solution to Address Fire Mitigation Needs

Based in Brighton, CO, United Power Inc. is the 2nd largest electric cooperative in Colorado. With over 5,000 miles of power lines and nearly 83,000 meters, they serve over 200,000 customers along the north central range of the Colorado Rockies. A section of the United Power service area also heads...

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High-Capacity, Energy-Efficient ACCC® Conductor Case Study

This project won EEI Transmission Project of the Year – 2016

Description: 240 circuit miles, 345 kV line, double bundle
Project: Replace 1,440 miles of ACSR conductor with ACCC

Objectives

Improve reliability (reduced sag and corrosion)
Increased capacity to serve growth (2X ACSR)
Improve grid resilience using high-strength composite core
Retain existing structures – to reduce capital costs and timeframe
Eliminate down time with live line reconductoring

See the Case Study in the Reliable...

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