Universal ground lead for 110 kilovolt overhead line strain tower

Abstract

The invention discloses a universal ground lead for a 110 kilovolt overhead line strain tower, belonging to a ground lead of an overhead transmission line. The ground lead comprises a hook head, an insulation rod, a soft copper line and a transverse rod, wherein one end of the soft copper line is installed on the hook head, and the other end of the soft copper line is connected with a grounding chuck; the upper part of the hook head is provided with a U-shaped opening for clamping a lead; one end of the transverse rod is fixed at the root of the hook head, and the other end of the transverse rod is provided with an adjusting support capable of rotating around the transverse rod; the upper part of the insulation rod is fixed on the adjusting support; a nut is arranged at the center of the transverse rod; a lead screw penetrates through the upper end of the nut and is fixedly provided with a lock block; the upper part of the lock block is provided with a circular arc groove; a guide groove which is matched with a straight shank in the middle of the hook head and is capable of sliding up and down along the straight shank in the middle is arranged in the side surface of the lock block; the lower end of the lead screw is connected with one end of a flexible shaft, and the other end of the flexible shaft penetrates through the insulation rod so as to be connected with a rotary shank; and the rotary shank is installed at the bottom end of the insulation rod. The universal ground lead has the advantages of being suitable for any tower shape line hanging structure of the 110 kilovolt overhead line, reliable in lead clamping, and convenient to install and uninstall.

Description

technical field [0001] The invention relates to a grounding wire of an overhead power transmission line, in particular to a general grounding wire suitable for a strain tower of a 110 kV overhead line. Background technique [0002] When the high-voltage overhead transmission line is powered off for maintenance, the maintenance party must hang ground wires at both ends of the maintenance area to protect the maintenance area from the danger of sudden power calls. Such as figure 1 Shown is a schematic diagram of a conventional insulating rod grounding wire. The conventional insulating rod grounding wire used in the current 110 kV overhead transmission line is composed of a grounding chuck 10, an insulating rod 6, an annealed copper wire 9, and a spring hook 400. The annealed copper wire One end of 9 connects spring hook head 400, and the other end of annealed copper wire 9 connects grounding chuck 10, and grounding chuck 10 is grounded earlier during use, and then manipulating...

AI Technical Summary

Problems solved by technology

[0005] Simultaneously, this conventional insulating rod grounding wire relies on the spring hook head 400 to clamp the conductor 300. The spring hook head 400 is at the far end of the hand-held end, which is inconvenient for people to manipulate at high altitudes.

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