Installation and support method including a tower crane for supporting a high-voltage line electric cable
AssigneeManitowoc Crane Group France SAS
InventorsJoachim FERNANDEZ, Brice DAL CORSO, Jean-Christophe GOIFFON
Life of this patent
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Abstract
A support installation includes support members for supporting an electric cable, a tower crane, a mast and a jib linked to an upper portion of the mast. The jib and the mast respectively extend according to a jib direction and a substantially vertical mast direction. The support members are secured to the jib and disposed at a plurality of locations distant according to the jib direction. The support members extend transversally to the jib direction to protrude laterally from the jib. The jib is cantilevered when the support installation is in the service configuration.
Claims19
1-17. (canceled)
A support installation for supporting at least one electric cable belonging to a high-voltage line, for example during implantation or maintenance work of the high-voltage line, the support installation comprising support members configured to support said at least one electric cable, and further comprising:
- a tower crane, the tower crane comprising a mast and a jib linked to an upper portion of the mast, the jib extending according to a jib direction and the mast extending according to a mast direction which is substantially vertical when the support installation is in a service configuration,
- wherein, the support members are secured to the jib and disposed at a plurality of locations spaced along to the jib direction, the support members extending generally transversally to the jib direction so as to protrude laterally from the jib when the support installation is in the service configuration, and
- wherein, the jib is cantilevered when the support installation is in the service configuration.
A support method for supporting at least one electric cable belonging to a high-voltage line, for example during implantation or maintenance work of the high-voltage line,
- the support method comprising the steps of:
- providing for a tower crane comprising a mast and a jib,
- placing the tower crane in the service configuration so that:
- the jib is linked to an upper portion of the mast, the jib extends according to a jib direction, and the mast extends according to a mast direction which is substantially vertical,
- equipping the tower crane with support members secured to the jib and configured to support said at least one electric cable at a plurality of locations distant according to the jib direction,
- extending the support members generally transversally to the jib direction so that the support members protrude laterally from the jib,
- positioning the jib with a free end portion located opposite the mast so that the jib is cantilevered when the support installation is in the service configuration, and locking the jib in rotation relative to the mast with a locking device.
A tower crane comprising:
- a mast extending in a mast direction;
- a jib connected to an upper portion of the mast and extending in a jib direction, wherein the jib is cantilevered on the mast in a cantilevered condition;
- and
- support members secured to the jib at a plurality of locations spaced in the jib direction along a length of the jib so as to extend laterally outward from the jib, wherein the support members are configured to support cables with the jib in the cantilevered condition.
Dependencies are inferred from the claim text.