Capacitive cable
AssigneeEnertechnos Limited
InventorGareth O'Brien
Life of this patent
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Abstract
A capacitive cable comprised six long, thin and narrow electrode plates or strips (101, 102, 103, 104, 105, 106). Typically, they are 5 km long, 10 cm wide and 0.5 mm thick of aluminum or copper foil. Individual ones of them are separated by 0.25 mm thick polypropylene ribbons (107) insulating the individual strips from each other in an insulating manner. The assembly of strips and ribbons is contained within an insulating sheath 108. At opposite ends (111,112), the alternate strips are cut off short and the remaining fingers (114,115) are joined together and to connection wires (116,117), typically by riveting (118). The wires are insulated and the insulating sheath extends onto the insulation of the wires, whereby the entire cable is insulated for safe contact with foreign objects between the ends.
Claims8
A multi-phase cable comprising a plurality of capacitive cables, wherein each capacitive cable comprises:
- at least two elongate electrode plates of one polarity, these plates being inter-connected at one end of the cable;
- at least two elongate electrode plates of another polarity, these plates being:
- interdigitated with the plates of the one polarity and being
- interconnected at the other end of the cable;
- and
- dielectric material between the interdigitated plates,
- wherein the plates are collectively encased in an outer casing or sheath, and
- wherein the individual capacitive cables are arranged to radiate from a central axis, forming radiating capacitive cables.
A capacitive cable comprising:
- at least two elongate electrode plates of one polarity, these plates being inter-connected at one end of the cable;
- at least two elongate electrode plates of another polarity, these plates being:
- interdigitated with the plates of the one polarity and being
- interconnected at the other end of the cable;
- and
- dielectric material between the interdigitated plates,
- wherein the capacitive cable is at least 1 km in length.
Dependencies are inferred from the claim text.