Overhead T&D

Outage Management & Restoration

Outage Management Review: When the Lights Go Out

The occurrence of severe weather events is on the rise at an alarming rate. According to the Insurance Bureau of Canada, extreme weather events that used to happen once every 40 years now occur as frequently as every six years in some regions; severe weather is expected to become even more frequent...

Overhead Distribution

Q&A: Transmission Line Inspection Using Robotics

A: Hydro-Québec’s power transmission system, the most extensive in North America, covers close to 34,000 km. Similar to many power utilities, we need thorough infrastructure inspections to ensure system reliability, availability, and performance.Therefore, we have, developed robotic...

Conductors & Materials

The Role of Cable Rejuvenation in Addressing the Maintenance of Aging Underground Cables

Aging underground residential distribution (URD) cables is a growing problem in communities around the world, disrupting customers and causing business challenges for utility providers. But in most cases, the traditional remedy for URD cable failure—taking the impacted...

Pole Line Hardware

Fiberglass Reinforced Polymer Crossarms 5th Percentile Design Strength Value Development

Introduction In 2007, the National Electric Safety Code (NESC) standards committee adopted composite poles, crossarms, and braces into the code. This action was significant in mandating the composite electrical structures manufacturing industry to publish their design strength values to a 5% Lower...

Infrastructure & Technologies

Changing Utility Business Models And Electricity Investment In Europe

The traditional utility business model of selling electricity from large-scale thermal power plants and expanding grids to meet rising demand historically has supported strong balance sheets. With this financial strength, utility retained earnings served as the primary financing source for the...

Vegetation Management

Vegetation Management on Transmission Lines

Using LiDAR technologies to enhance operations BY PHILIP CHARLTON, Utility Arborist Association In March 2014, utility vegetation managers from throughout North America gathered in Fort Worth, Texas to share their experience with the use of LiDAR (light detection and ranging) remote sensing...

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Reliability Vs. Vegetation

Florida Power & Light takes steps to keep lights on

Managing vegetation (that is, trees, bushes and other neighboring plants) around power lines is a top priority for electric utilities. According to the U.S. Environmental Protection Agency (EPA), unmanaged vegetation can cause electricity outages, wildfires, soil erosion, and water quality issues. These unfortunate incidents can damage the power grid, resulting in serious consequences such as reliability, environmental, and national security problems.

The EPA points...

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