SUPPORT TOWERS, INSULATING CROSS-ARMS AND INSULATING MEMBERS FOR HIGH VOLTAGE POWER NETWORKS

WIPO Patent Application WO/2011/021006

A3

An electrically insulating cross-arm is disclosed 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 to compressive buckling and allows conductors to be safely supported at reduced tower height. T and Y shaped cross sections provide particularly good water run-off and inhibition of organic growth on the structural member. In addition to use in tower cross arms, the structural members are generally useful as insulator members in high voltage power networks.

COTTON IAN (GB)
BAHAROM NOR RAMDON BIN (GB)
ROWLAND SIMON M (GB)
CHAMBERS DAVID (GB)
WEATHERBY NICHOLAS (GB)
THORNE MATTHEW (GB)

PCT/GB2010/001574

February 02, 2012

August 20, 2010

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UNIV MANCHESTER (GB)
EPL COMPOSITE SOLUTIONS LTD (GB)
COTTON IAN (GB)
BAHAROM NOR RAMDON BIN (GB)
ROWLAND SIMON M (GB)
CHAMBERS DAVID (GB)
WEATHERBY NICHOLAS (GB)
THORNE MATTHEW (GB)

H02G7/05; H01B17/00

WO2009049376A1

2009-04-23

JPH06335144A	1994-12-02
FR2612549A1	1988-09-23
US4523054A	1985-06-11
GB1034224A	1966-06-29

INSTONE, Terry (1 New York Street, Manchester M1 4HD, GB)

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