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US 9,633,766 B2Granted
Energy efficient conductors with reduced thermal knee points and the method of manufacture thereof
OwnerJianping Huanginventor
Life of this patent
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Abstract
The present invention relates to electrical conductors for electrical transmission and distribution with pre-stress conditioning of the strength member so that the conductive materials of aluminum, aluminum alloys, copper, copper alloys, or copper micro-alloys are mostly tension free or under compressive stress in the conductor, while the strength member is under tensile stress prior to conductor stringing, resulting in a lower thermal knee point in the conductor.
Claims17
An electrical conductor, comprising:
- a strength member comprising a strand or a plurality of strands of steel or fiber-reinforced longitudinally extending composite materials under tensile strain of at least 0.05%, and having an optional insulation layer sufficient to eliminate galvanic corrosion;
- and an electrically conductive encapsulating layer portion comprising of at least a single layer of cladding conductive media, wherein the conductive encapsulating layer is in direct contact with the strength member with no gaps;
- or the conductive encapsulating layer is in direct contact with the strength member via a lubricating layer with no gaps between any of the three layers;
- and wherein the electrically conductive encapsulating layer portion is substantially free of tension, for electrical conduction and protection of the strength member from damage or material degradation.
1 more element
Dependencies are inferred from the claim text.