Full Composite Insulator for Electrical Cutout
AssigneeCooper Technologies Company
InventorsChao Zhang, Alan P. Yerges, Stephen P. Hassler
Life of this patent
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Abstract
An insulator for an electrical cutout having a fuse assembly, and methods of manufacturing. The insulator includes a weathershed housing and a single-piece full composite insulator body having no metal components. The insulator body includes a nonmetal composite polymer and a plurality of fibers. The insulators have improved mechanical strength and electrical performance over conventional insulators.
Claims22
An insulator for an electrical cutout, the insulator comprising:
- an insulative housing;
- and
- an insulator body comprising a frame having a first end and a second end, a first extension extending from the first end and integral to the frame, and a second extension extending from the second end and integral to the frame,
- wherein the insulator body comprises a nonmetal composite polymer and a plurality of fibers, wherein the fibers have a length greater than about 12 millimeters, and
- wherein the insulative housing surrounds a portion of the frame.
An insulator for an electrical cutout, the insulator comprising:
- an insulative housing;
- and
- an insulator body comprising a nonmetal composite material having volume resistivity of greater than about 1014 ohm-centimeter and a tensile strength of at least 30000 pounds per square inch,
- wherein the insulative housing surrounds a portion of the insulator body.
A method for manufacturing an insulator body of an insulator for an electrical cutout, the method comprising:
- placing a nonmetal composite material into a mold to form said insulator body, wherein said insulator body is a single component that includes a frame and at least two integral extensions extending therefrom;
- closing the mold;
- applying pressure and heat until the nonmetal composite material has hardened to thereby form said insulator body;
- and
- removing the insulator body from the mold.
A method for manufacturing an insulator body of an insulator for an electrical cutout, the method comprising:
- heating a nonmetal composite polymer in a chamber;
- placing a material comprising a plurality of fibers into a heated mold to form said insulator body, wherein said insulator body is a single component that includes a frame and at least two integral extensions extending therefrom;
- forcing the heated nonmetal composite polymer into the mold using a plunger;
- applying pressure and heat until the material within the mold has hardened to thereby form said insulator body;
- and
- removing the insulator body from the mold.
Dependencies are inferred from the claim text.