Abstract: A method of providing a shed (2) for a high-voltage insulator (1) includes providing a substantially tubular substrate (3), providing an extruder (10) having an extruder head (11) defining an extrusion direction (A), using the extruder (10) to extrude the shed (2) and applying the shed (2) on the substrate (3) while rotating the substrate relative to the extruder head (11). The extrusion direction (A) substantially coincides with the longitudinal axis of the substrate (3), and the substrate (3) is fed through the extruder head (11).
Type:
Grant
Filed:
June 25, 2002
Date of Patent:
January 18, 2005
Assignee:
Tyco Electronics U.K. Limited
Inventors:
David William Maute Thornley, Stephen Andrew Clift, Alan Cook
Abstract: An annular guard (20) for mounting on a high voltage insulator extends laterally thereof for a sufficient distance so as to prevent small wildlife such as squirrels from forming a short circuit between the opposing ends of the insulator at high voltage and earth potential respectively. The guard (20) is formed in two planar parts (24, 26) that are pivoted together (28) so that they can be relatively rotated between an open condition for mounting onto a live insulator and a closed condition for being secured thereto. Overlapping regions of the two parts are secured together (30, 32, 34, 36, 38) in the closed condition.
Type:
Grant
Filed:
June 16, 1999
Date of Patent:
June 19, 2001
Assignees:
Tyco Electronics U.K. Limited, Georgia Power Company
Inventors:
Michael Robert Cook, Donald Christopher Cowley Barrett, Matthew Spalding, Michael Harben