• Ageing Lake Crossing Presents Range of Asset Management Issues

    May 19, 2018 • ARTICLE ARCHIVEUtility Practice & Experience

    In a day when power utilities across the globe have to increasingly deal with ageing power infrastructure, one transmission line crossing a wide lake presents an example of the types of asset management issues that… Read More

  • Dielectric Strength & Air Density

    May 19, 2018 • ARTICLE ARCHIVECommentary by Pigini

    While a number of atmospheric parameters affect the dielectric strength of external insulation, relative air density (δ) and absolute humidity are considered the most significant. Here, the focus is on the former, which plays a… Read More

  • Practical Issues for Effective Aerial Patrols of Overhead Lines

    May 19, 2018 • ARTICLE ARCHIVEInspection

    Detecting damaged or defective line components before they fail and cause serious problems is necessary to ensure the safe operation of overhead networks. It is therefore not surprising that finding reliable methods to inspect lines… Read More

  • Verifying Corona, Pollution & Icing Performance of Insulation Structures

    May 19, 2018 • ARTICLE ARCHIVECorona

    Use of composite insulators has increased rapidly. Historically, the main driver was excellent performance in polluted areas. But a more recent application has been in clean environments, where composite insulators provide possibilities to design more… Read More

  • Testing Composite Transmission Insulators After 15 Years Service at High Altitude

    May 12, 2018 • ARTICLE ARCHIVETesting

    Many transmission lines across the globe operate at high altitude under conditions of low air pressure and relatively thin air. It is well known that voltage decreases with altitude, whether air gap discharge voltage, conductor… Read More

  • Application of Composite Interphase Spacers to Prevent Conductor Galloping

    May 12, 2018 • ARTICLE ARCHIVEUtility Practice & Experience

    The use of composite insulators on transmission lines has increased steadily in recent years due to their well-known performance advantages as well as their lower acquisition and life cycle costs. At the same time, these… Read More

  • Assessing Performance of Different Conductor & Line Hardware Configurations

    May 5, 2018 • ARTICLE ARCHIVEHV/HP Testing

    There are only a few installations worldwide whose purpose is to assess performance of different designs of line hardware and conductors under stresses caused by environmental factors such as wind and icing. One of these,… Read More


    May 5, 2018 • ARTICLE ARCHIVE

    This handsome 350+ page full color book offers a unique compendium of technical knowledge on line and substation design as well as on the latest technologies for insulators, surge arresters, bushings & cable accessories. Other… Read More

  • Replacing SF6 Affecting Broader Transmission Industry

    May 5, 2018 • ARTICLE ARCHIVE

    New technologies are now allowing the T&D industry to combine economic opportunities with environmental goals. One example has been the search for ‘green’ alternatives to SF6 for gas-insulated switchgear and circuit breakers. From a purely… Read More

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