Patent ID: 8653376
Filing Date: 2014-02-18
Classification: H01B,H01T

Abstract:
1. A composite insulator, comprising: a rod with an insulating jacket and ribs, wherein the insulating jacket and the ribs are made of an insulating plastic material; at least one end fitting; and a corona shield fabricated as a separate formed component that is coaxially disposed on the composite insulator at an interface region between the rod and the end fitting, and whose cavity is filled with a sealant compound, wherein the corona shield is integrally made from a plastic material in one piece, wherein the corona shield originally forms the cavity that is open towards an inside that is filled with the sealant compound through at least one filling channel, wherein the corona shield includes a closing cuff in axial direction on both sides to seal the cavity, wherein a diameter of the rod side closing cuff is adapted to a diameter of the insulating jacket, and a diameter of the end fitting side closing cuff is adapted to a diameter of the end fitting, wherein the filling channel leads to the cavity from an outside; wherein the rod is crimped to the end fitting in a hole of the end fitting forming a crimping portion, wherein the end fitting includes a portion in front of the crimping portion in which the hole has a larger diameter than the insulating racket, and the insulating jacket extends into the hole, wherein the interface region, where the rod enters the crimping portion, is covered by the cavity and sealed by the sealant compound disposed in the cavity, wherein the interface region includes a first section in which the rod is enveloped by the insulating jacket and a second section in which the rod is not enveloped by the insulating jacket, wherein the sealant compound covers both the first section and the second sections, wherein the end fitting in the cavity forms two partial cavities, an inner cavity and an outer cavity, wherein the inner cavity extends about the end of the insulating jacket and the second section, and wherein the inner and the outer cavity between the first and second sections are filled with the sealant compound.