Development of bypass cable

Research has been conducted into ways of enabling wiring operations to be performed on overhead power lines without shutting off the power. This research has culminated in the development of a method called the bypass cable method. One of the bypass cables used in this method has a built-in polyaramide resistor for additional strain resistance, providing greatly improved performance. The development and spread of the bypass cable method has enabled work-related power shut-offs to be reduced to one-fourth the number required five years beforehand, and each year this level continues to decline