Joints in High-Voltage Multiple-Conductor Cable

In this paper the author has outlined the evolution of multiple conductor joints and explained in detail the development of a three-conductor, high-voltage joint for use with belted and metal sheathed cables or combinations of these. In the final design, spreaders and barrier tubes have been replaced by specially reinforced crotches and hand-wrapped insulation. To date, all tests,??short time and accelerated life, a-c. and d-c.,?? have produced failures in cable rather than in joints so constructed. Many other claims of superiority over existing types are presented.