Developments in Polymeric Materials & Processing Technologies for Line & Substation Insulation
by Frank Schmuck

Different families of polymeric housing materials have been utilized over the decades in development of modern composite insulator technology. This applies as well to the core rods, which have consisted of different types of resin axially reinforced by glass fibre. Similarly, their manufacture has been accomplished using different processes, from moulding of individual sheds in a modular process to moulding onto the rod of the complete housing in single or multiple shots. This presentation reviews progress in polymer insulator technology, focusing on latest trends in technical development as well as power industry applications.