Device with no need of removing grounding lead of power transmission line
A technology for transmission lines and grounding wires is applied in the field of unremoved devices for grounding wire leads of power transmission lines, which can solve the problems of threatening the safe operation of transmission lines, loss of fastening function of screw holes, easy corrosion of embedded screw holes, etc., so as to avoid economic losses. and social impact, ease of operation, avoidance of irreversible effects
Inactive Publication Date: 2015-08-05
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0002] Due to the impact of the climate environment on the transmission line, the original embedded screw of the concrete rod grounding device is very easy to rust, and the screw loses its fastening effect. When the transmission line is tested for grounding resistance, the fastening bolt must be removed and screwed in again. Unrecoverable problems will occur, threatening the safe operation of transmission lines
At present, there is no device to eliminate such defects
Method used
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[0010] The present invention will be further described below in conjunction with accompanying drawing:
[0011] Such as figure 1 As shown in the figure, a device for avoiding the removal of ground wire leads of transmission lines includes a concrete rod 2 placed on the ground 1, and a pre-embedded screw hole 3 is opened on the concrete rod 2, and a porcelain screw sleeve is placed in the pre-embedded screw hole 3 4. The outer surface of the porcelain screw sleeve 4 is provided with an outer screw, and the inner surface is provided with an inner screw; the concrete rod 2 is fixed with a circle of concrete rod flow guide contact pieces 5 around the hole of the pre-embedded screw hole 3, Concrete rod guide contact piece 5 is connected with concrete rod lead wire 6, and concrete rod lead wire 6 is placed inside the concrete rod 2; the internal thread of embedded screw hole 3 is connected with fastening bolt 7, and the fastening bolt 7 is equipped with a grounding conduction contac...
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The invention discloses a device with no need of removing a grounding lead of a power transmission line, and the device comprises a concrete rod. The concrete rod is provided with a pre-buried screw hole, and the interior of the pre-buried screw hole is provided with a ceramic threaded buckle sleeve. The periphery of the mouth of the pre-buried screw hole is fixedly provided with a concrete rod current guide contact piece which is connected with a concrete rod lead. The interior of the pre-buried screw hole is in threaded connection with a fastening bolt, and the fastening bolt is sleeved by a grounding current guide contact piece which is connected with the grounding lead, wherein the grounding lead is buried underground. The device is simple in structure, is convenient to operate, and can test grounding resistance when the fastening bolt is not completely disassembled. The above method is simple in operation, is high in work efficiency, irons out a defect that the rusting of a pre-buried iron screw hole causes that the fastening bolt cannot be recovered after disassembly, can reduce the times of lightning tripping caused by that the grounding lead cannot be recovered, and prevents power failure from causing economic loss and social impact.
Description
technical field [0001] The invention relates to the technical field of special tools for power transmission lines, in particular to a device for avoiding removal of ground wire leads of power transmission lines. Background technique [0002] Due to the impact of the climate environment on the transmission line, the original embedded screw of the concrete rod grounding device is very easy to rust, and the screw loses its fastening effect. When the transmission line is tested for grounding resistance, the fastening bolt must be removed and screwed in again. There will be unrecoverable problems, which threaten the safe operation of transmission lines. At present, there is no device to eliminate such defects. Therefore, it is very important to develop a safe, convenient and applicable power transmission line ground wire lead wire free device. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned problems in the prior art, and...
Claims
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IPC IPC(8): H02G7/22
CPCH02G7/22
Inventor 梁前晟崔常青
Owner STATE GRID CORP OF CHINA