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Conductors & Materials

Improve Energy Efficiency in Underground Systems

Making appropriate cable component design and material choices BY DENNIS DOSS, General Cable ore than ever, society is realizing that energy resources are dwindling and becoming more expensive. In response, North American electric utilities offer consumers a variety of incentives to deploy energy...

Disaster & Recovery

Coping with Extreme Weather Events

How to optimize the entire outage lifecycle BY RICK NICHOLSON, Ventyx The extreme weather just keeps coming. In 2012, there were 11 outages due to severe weather costing at least $1 billion. The year of 2013 had its share as well. More and more, the scale and variety of such major events are...

Wire and Cable

Insulation Resistance Test

Insulation Resistance (IR) test, often called Megger test, is more than 100 years old and assumed to be a very straightforward test. During my inspection and testing work in the past 15 years in Canada, US, and internationally, I have seen different practices of performing and interpretation of IR...

Outage Management & Restoration

Outage Management Review: Outage Intelligence

The permeation of intelligence into the medium-voltage network is continuing apace, bringing the reality of the Smart Grid ever closer. One target of the Smart Grid is to improve service continuity by recognizing, locating, and isolating faults as quickly as possible. Concurrently, the amount of...

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

Power Grid Congestion

Unclogging the arteries of North America’s power grid BY DAVE BRYANT, CTC Global Corporation Without access to affordable and reliable electricity, no society in today’s world can possibly flourish. Canada and the U.S. rely heavily on electricity to pump water to grow crops,...

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Transmission Line Design

Taking 3-D drawing techniques to new technological heights

BY BOB ZAPPITELLI, & HAROLD HARKONEN, Nordmin Engineering

Historically, transmission line design and drafting has been an arduous task. It often involved an iterative manipulation of several parameters to achieve a final solution. The common output of this effort is a two-dimensional plan and profile drawing that links the various design stages involved. These drawings show the location and elevation of all natural- and human-made features that...

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