Construction method for preventing erection of crossing frame by using overhead ground wire to perform pulley block hanging operation

Abstract

The invention discloses a construction method for preventing erection of a crossing frame by using an overhead ground wire to perform pulley block hanging operation. The method is simple in construction and safe to operate, can shorten the construction time and power failure time, is time-saving and labor-saving, and reduces the construction cost. The method comprises the following steps: first of all, arranging work personnel to climb a tower near a position in need of crossing to hang the triaxial pulley block on an overhead ground wire; making the two ends of each insulation rope vertical down to the ground, and the ground work personnel sliding the pulley block from the overhead wire to a crossover object by use of the insulation ropes vertical down to the ground; the ground work personnel binding a wire holder wheel, leading the two ends of each of the two insulation ropes out respectively from collars at the two sides of the wire holder wheel, lifting the wire holder wheel to a position distanced 100mm to 200mm away below a lead, encircling the lead, and at the same time, by use of a temporary ground anchor, binding the two ends of each of the two insulation ropes so as to maintain a certain height from the ground to reach a safety distance when the lead descends; and then, controlling the lead to swing from left to right and bounce by use of the insulation ropes so as to prevent contact with a lead at a same-tower parallel live-line side.

Description

technical field [0001] The invention relates to a construction method for avoiding the erection of a spanning frame by using an overhead ground wire to hang a block of pulleys. Background technique [0002] At present, the power system is developing rapidly, which brings many transmission line transformation projects. The most important thing is to replace the transmission line conductors in order to meet the user load, and the replacement of overhead conductors involves the crossing of many lines. For example: lines The bottom crosses transmission lines, low-voltage distribution lines, roads, rivers, housing buildings, etc. These spanning places need to build many spanning frames, and these spanning frames must be completed before the replacement of the conductor construction, requiring a lot of manpower and time. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a construction method that uses overhead ground wi...

AI Technical Summary

Problems solved by technology

For these spanning places, many spanning frames need to be erected, and these spanning frames must be completed before the replacement of the conductor construction, requiring a lot of manpower and time.

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