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US 12,191,053 B2Granted
Ground cable with visual indicator
AssigneeCopperweld Bimetallics LLC
InventorJeffrey Thomas Jordan
Life of this patent
Estimating the term…
Abstract
A ground cable may comprise a plurality of strands. Inner core strands of the cable may be surrounded by an adjacent outermost layer or wrap of outer wrap strands. The outer wrap of strands may comprise at least one indicator strand, which may comprise an indicator finish on a portion of its surface. A characteristic of the indicator finish may change when exposed to a current level that exceeds an electrical fault threshold.
Claims20
A ground cable for use in a power distribution network, comprising:
- a core strand;
- an indicator strand positioned adjacent to the core strand, wherein an observable change in a characteristic of the indicator strand occurs when a current carried by the ground cable exceeds a fault threshold;
- and
- a jacketed strand positioned adjacent to the core strand,
- wherein the jacketed strand comprises a jacket disposed around a core of the jacketed strand, wherein a portion of the jacket is visible to a user observing the ground cable, and wherein the portion of the jacket undergoes at least a partial melting when the current carried by the ground cable exceeds the fault threshold, and wherein the jacketed strand comprises at least one conductive layer positioned between a core of the jacketed strand and the jacket of the jacketed strand.
2 more elements
A method for detecting faults in a ground cable for use in a power distribution network, comprising:
- providing a core strand;
- positioning an indicator strand adjacent to the core strand, wherein an observable change in a characteristic of the indicator strand occurs when a current carried by the ground cable exceeds a fault threshold;
- and
- positioning a jacketed strand adjacent to the core strand, wherein the jacketed strand comprises a jacket disposed around a core of the jacketed strand, wherein a portion of the jacket is visible to a user observing the ground cable, and wherein the portion of the jacket undergoes at least a partial melting when the current carried by the ground cable exceeds the fault threshold, and wherein the jacketed strand comprises at least one conductive layer positioned between a core of the jacketed strand and the jacket of the jacketed strand.
1 more element
Dependencies are inferred from the claim text.