Method of forming a coated overhead conductor
AssigneesGeneral Cable Technologies Corporation, Emisshield, Inc.
InventorsVijay Mhetar, Cody R. Davis, Sathish Kumar Ranganathan, John Olver, John Dillard
Life of this patent
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Abstract
The present invention relates to a surface modified overhead conductor with a coating that allows the conductor to operate at lower temperatures. The coating contains about 5% to about 30% of an inorganic adhesive, about 45% to about 92% of a filler, about 2% to about 20% of one or more emissivity agents, and about 1% to about 5% of a stabilizer.
Claims17
A method of forming an improved overhead conductor having a lower operating temperature, the method comprising:
- a. pretreating the outer surface of a bare conductor to prepare the outer surface for coating by removing particulates greater than 10 microns in size, such that less than 1000 particulates per square feet are present on the outer surface of the bare conductor, wherein the pretreating includes sandblasting the outer surface of the bare conductor, and applying an air wipe to the outer surface of the bare conductor subsequent to the step of sandblasting, wherein the step of applying the air wipe comprises applying a jet of air around the circumference of the bare conductor at an angle of 360 degrees and in a direction opposing the direction of travel of the bare conductor;
- b. applying a surface coating to the outer surface of the bare conductor, wherein the surface coating comprises 45% to 55% solid content, and the solid content comprises about 5% to about 30% of an inorganic adhesive, about 45% to about 92% of a filler, and about 2% to about 20% of one or more emissivity agents;
- and
- c. drying the surface coating to form a coating layer on the outer surface of the bare conductor having a thickness from about 5 microns to about 30 microns;
- and
- wherein the method is continuous.
A method of pretreating the outer surface of a bare conductor for deposition of a surface coating, the method comprising:
- a. sandblasting the outer surface of a bare conductor;
- and
- b. applying an air wipe to the outer surface of the bare conductor, wherein the step of applying the air wipe comprises applying a jet of air around the circumference of the bare conductor at an angle of 360 degrees and in a direction opposing the direction of travel of the bare conductor, wherein particulates greater than 10 microns in size are removed such that less than 1000 particulates per square feet are present on the outer surface of the bare conductor;
- and
- wherein the method is continuous.
Dependencies are inferred from the claim text.