Line crossing method
A line and crossing rod technology, applied in the direction of overhead lines/cable equipment, etc., can solve the problems of safety hazards in crossing wires, power outages of crossed power lines, interruption of railway transportation, etc., so as to reduce crossing labor intensity, strong versatility, and increase Effect of Sidestick Height
Inactive Publication Date: 2012-09-19
NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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Problems solved by technology
Due to the variety of obstacles crossed by power lines, there are various power lines, communication lines, roads, railways, houses, etc., and the crossing points are complex, which brings great safety hazards to the crossing construction
For example, an accident during construction may lead to a long-term power outage across the power line, interruption of railway transportation, and may even endanger personal safety in serious cases. The loss is also very alarming.
Method used
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Embodiment Construction
[0017] Such as figure 1 Shown, a kind of line spanning method, it comprises the following steps:
[0018] a. Select a suitable location to cross and mark it well, and prepare corresponding tools;
[0019] b. Assemble the column 11 on one side of the special spanning frame and the spanning bar 2, put the traction line 4 into the long slot 7 of the spanning bar 2, and the counterweight 5 connected with the traction line 4 and the pulley at the end of the long slot 7 together;
[0020] c. Nail the column 11 into the ground, fix the column 11 firmly with three stay wires 3 at 120 degrees, fix it to the column 12 on the other side, and erect the column 12, and fix it with three stay wires 3;
[0021] d. Slowly loosen the spanning rod pull rope 6, and place the spanning rod 2 on the other side of the column 12 stably;
[0022] e. Use the counterweight 5 to lower the traction line 4 by its own weight, and pre-install a sufficient length to fix the line to be crossed on the tractio...
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The invention discloses a line crossing method. Line crossing is finished by performing assembling, fixing, crossing and the like on two upright posts and one crossing pole. A crossing pole of the special crossing frame is connected with one upright post through a shaft and connected with the other upright post in a clamping way; the upright posts are provided with fixing stays; the upper surface of the crossing pole is longitudinally provided with an elongated slot in which a plurality of pulleys are arranged; a draw wire is arranged on the pulleys to pass through the elongated slot of the crossing pole and extend out of the crossing pole; one end of the draw wire is provided with a clump weight; and the end, connected with the upright post through the shaft, of the crossing pole is provided with a guy rope. By using a simple crossing frame for line crossing, the method can meet various crossing environments; and the crossing frame has the advantages of simple structure, light weight, convenient and flexible operation, high universality, safe crossing, no hidden trouble and simple and convenient transportation and assembly.
Description
technical field [0001] The invention belongs to the technical field of electric power construction line spanning methods, and in particular relates to a line spanning method. Background technique [0002] In the construction of power lines, it is often encountered that crossing strung construction across various obstacles. Because there are many kinds of obstacles that power lines cross, there are various power lines, communication lines, roads, railways, houses, etc., and the crossing points are complicated, which brings great safety hazards to the crossing construction. For example, an accident during construction may lead to a long-term power outage across the power line, interruption of railway transportation, and may even endanger personal safety in serious cases. The loss is also very alarming. In order to ensure the safety and reliability of spanning construction, the method of erecting spanning frames and closing the spanned objects is usually adopted. Therefore, i...
Claims
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IPC IPC(8): H02G1/02
Inventor 肖红李勇刚谢有刚侯毅
Owner NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER