The Technical Transition and Issues of Insulated Electric Wires, Cables and Accessories in Several Distribution Line Environments

Abstract

With ensuring the public safety, reliability and economic efficiency, insulated electric wires, cables and their accessories used in distribution lines have been improved to fit to their usage environment. This article briefly describes their technical transitions, especially for the upgrades in their functions as well as structures. Some current technical issues are also given in relation to new demands emerged the changes in social situations.