Cable Accessories

PPC Insulators

Silicone Elastomers, Gels & Auxiliary Materials for Cable Accessories

The first silicone cable accessories were developed in the late 1960s and appeared together with introduction of extruded XLPE cables. The main focus at the time was on a design with field-grading and insulating parts in a prefabricated body that allowed easy... Read More

Condition Assessment of High Voltage Cable Terminations

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

Explosion-Resistant Cable Terminations

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

Achieving More Cost Effective & Reliable Cable Accessories through Improved Layout, Production & Testing

Among the different possible constructions, slip-on technology has grown to become the world standard to connect extruded high voltage cables. One of the reasons for this is that use of pre-fabricated, routine-tested components for the main insulation... Read More

Design, Materials & Manufacturing of Cable Accessories

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... Read More

Impact of Stress Cone & Joint Body Expansion Rate on Electric Field Stress

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

Superconducting Cable Technology Ready for Broader Application

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