Abstract: A method is for generating a freeroom for a mast element in a ground. The method includes the steps: a) drilling a first annular recess into the ground, the first recess having: a first diameter; and a first depth; b) drilling a second annular recess in the ground, the second recess being arranged to receive the mast element, and the second recess: having a diameter which is smaller than the first diameter; having a second depth which is larger than the first depth; surrounding a first core of the ground; and being surrounded by the first recess; wherein there is, defined between the first recess and the second recess, a second core which can be removed to generate a freeroom.

Abstract: A system and a method are for positioning a drilling rig arranged to drill in a ground. The system has a positioning jig including at least one coupling portion; a drilling rig including at least two coupling portions; and at least two anchoring elements including an upper coupling portion and a lower coupling portion. The lower coupling portion of the anchoring element is arranged to be releasably fixed to the ground. The upper coupling portion of the anchoring element is arranged to be connected to the coupling portion of the positioning jig and to the coupling portion of the drilling rig, so that the upper coupling portion of the anchoring element can optionally be connected to the positioning jig or the drilling rig.

Abstract: The invention relates to a fastening element for fastening a hollow composite pole to the ground at a location where a slit-formed opening is present in the ground, wherein the fastening element has a lower end portion that is configured for being positioned in the slit-formed opening, wherein a conical portion of the composite pole is abutting a conical upper portion of the fastening element.

Abstract: A fastening element is for fastening a hollow composite pole to the ground at a location where a slit-formed opening is present in the ground. The fastening element has a lower end portion that is configured for being positioned in the slit-formed opening, wherein a conical portion of the composite pole is abutting a conical upper portion of the fastening element. A method is for fastening a hollow composite pole to the ground.

Abstract: A method is for generating a freeroom for a mast element in a ground. The method includes the steps: a) drilling a first annular recess into the ground, the first recess having: a first diameter; and a first depth; b) drilling a second annular recess in the ground, the second recess being arranged to receive the mast element, and the second recess: having a diameter which is smaller than the first diameter; having a second depth which is larger than the first depth; surrounding a first core of the ground; and being surrounded by the first recess; wherein there is, defined between the first recess and the second recess, a second core which can be removed to generate a freeroom.

Abstract: A core drill is arranged to drill in the ground, the core drill having a sleeve with a first end portion and a bit ring which is detachably attached in a rotationally rigid manner to the first end portion, one of the sleeve and the bit ring having a groove with two converging side faces, and the other one of the sleeve and the groove having a protrusion with two complementary side faces, and the groove and the protrusion being arranged to engage with each other.

Abstract: A device, a system and a method are for attaching a crossbar to a hollow composite pylon where the crossbar is arranged to carry at least one conductor. The hollow composite pylon, the crossbar and the conductor form components of a pylon structure for the transmission or distribution of power. The device has an adapter, which, in the position of application, is pivotably attached to the crossbar, is slideable at least into or over the, in the position of application, upper end portion of the hollow composite pylon and mainly along the longitudinal axis of the hollow composite pylon during part of the installation phase.

Abstract: A system and a method are for positioning a drilling rig arranged to drill in a ground. The system has a positioning jig including at least one coupling portion; a drilling rig including at least two coupling portions; and at least two anchoring elements including an upper coupling portion and a lower coupling portion. The lower coupling portion of the anchoring element is arranged to be releasably fixed to the ground. The upper coupling portion of the anchoring element is arranged to be connected to the coupling portion of the positioning jig and to the coupling portion of the drilling rig, so that the upper coupling portion of the anchoring element can optionally be connected to the positioning jig or the drilling rig.

Abstract: A device, a system and a method are for attaching a crossbar to a hollow composite pylon where the crossbar is arranged to carry at least one conductor. The hollow composite pylon, the crossbar and the conductor form components of a pylon structure for the transmission or distribution of power. The device has an adapter, which, in the position of application, is pivotably attached to the crossbar, is slideable at least into or over the, in the position of application, upper end portion of the hollow composite pylon and mainly along the longitudinal axis of the hollow composite pylon during part of the installation phase.

Abstract: A device for connection of a wireline (2) provided with a conductor (10), the wireline (2) being intended particularly for a wireline tool (4), wherein the wireline is provided with a wireline connector (6) in which each wireline strand layer (12, 14) is biased and clamped between an inner sleeve (16, 26) and an outer sleeve (18, 28), and wherein the tensile load of the wireline (2) is transmitted to a fastening element (38) via the outer sleeves (18, 28), the wireline connector (6) being connected to the wireline tool (4) by means of a releasable disconnection device (8).