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AssigneeArago Technology Limited
InventorsIan Cotton, Md Nor Ramdon Bin Baharom, Simon M. Rowland, David Chambers, Nicholas Weatherby, Matthew Thorne
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An electrically insulating cross-arm for a tower for high-voltage power networks. The cross-arm includes an insulating structural member for attachment to the tower body and to support a conductor cable. The insulating structural member comprises a solid rigid spine extending along a long axis having cross sectional profile, normal to the long axis, having a second moment of area of its cross sectional profile about every axis normal to the long axis and dissecting its centroid has a value of A2/2π or more, where A is the area of the cross sectional profile. The structural member provides resistance to bending and compressive buckling and allows conductors to be safely supported at reduced tower height. T and Y shaped cross sections provide water run-off and inhibition of organic growth. The structural members are also generally useful as insulator members in high voltage power networks.
An electrically insulating cross-arm for a tower arranged to carry power conductors spaced from a body of said tower, the cross-arm comprising at least one first insulating structural member having a proximal end adapted for attachment to the tower body and a distal end adapted for attachment to a conductor support means,
An insulating structural member, for use with high voltage power networks, comprising a solid rigid spine extending along a long axis between the distal and proximal ends wherein the spine has a cross sectional profile, normal to the long axis, having a centroid, wherein the second moment of area of the cross sectional profile about every axis normal to the long axis and dissecting the centroid has a value of A2/2π or more, where A is the area of the cross sectional profile, and
Dependencies are inferred from the claim text.