To achieve the optimum balance of cost and performance, accessories for MV and HV cables are increasingly being produced using tailor-made polymeric materials as well as specialized manufacturing processes. At the same time, developments in cable systems themselves are also impacting the design of accessories that are being developed for use both now and in...
Condition assessment of power transmission devices such cable systems is essential for their reliable operation. For example, diagnostics of oil-filled cables is important for transmission system operators to provide an indication of remaining lifetime. This... Read More
Layout of pre-moulded stress cones for elastomeric cable accessories is designed and optimized using computer calculations of electrical stress on the accessory. During installation, however, stress cones are expanded, thereby reducing thicknesses of the... Read More
In recent years, application of high temperature superconductors for medium and high voltage power cables has moved progressively from the ‘prototype phase’ to initial field testing. Use of specialized materials, where the effect of superconductivity... Read More
Self-supporting, fluid-filled terminations have been used since the advent of HV cables and continue to be the first choice among most network operators due to their excellent long-term performance. Recently, composite housings have increasingly replaced... Read More
Cable accessories perform the key function of ensuring required insulation either at the connection points of cables (straight joints) or at their ends (terminations). These accessories have to be easy and safe to install over a broad range of different cable... Read More
The population of installed paper-insulated cables at low and medium voltages is estimated to still represent over half of the underground networks in many countries. However, these days, virtually 100 percent of new cable installations are polymeric type.... Read More
The recent INMR WORLD CONGRESS in Barcelona-Sitges offered a session dedicated to cable accessories. Expert presenters exchanged views about general technical trends in the industry but also about specific topics related to medium and high voltage cable... Read More