A high-altitude temporary anchor crimping construction method suitable for gap-type heat-resistant and capacity-increasing wire

Abstract

The invention provides a high-altitude temporary anchor crimping construction method suitable for a gap-type heat-resistant and capacity-increasing wire, and includes the following steps: a tensile tower is arranged, and the wire is lifted into a cross arm laying-out block of the tensile tower for lifting the wire; The aluminum special tightening wire clamps installed with temporary tightening wire are used to pre-tighten and clamp the wire, and the outer aluminum wire layer of the wire is stripped to realize the temporary anchoring of the steel core of the wire; Two sets of steel core wire tighteners are alternately matched to move the tensile aluminum pipe from the steel core of the wire to the outer aluminum wire layer of the wire; Before the tensile aluminum tube is moved, the outer aluminum wire layer of the stripped wire is recovered and wound onto the steel core; Hanging the steel core of the wire to the tensile insulator string for crimping, recovering the aluminum wire layer of the remaining stripped wire to be wound on the steel core, pushing the tensile aluminum pipe back to the top of the steel anchor, and crimping the tensile aluminum pipe on the wire by adopting a reverse pressure process; Then the large-sized side wire is crimped to complete the high-altitude crimping construction of the wire. The method is safe, reliable, and highly practical and improves construction efficiency.

Description

technical field [0001] The invention relates to the technical field of electric power construction, and more specifically relates to a high-altitude anchor crimping construction method suitable for gap-type heat-resistant capacity-increasing conductors. Background technique [0002] With the development of society and economy, in order to meet the demand of rapid load growth, transmission lines in some developed areas began to use gap-type heat-resistant capacity expansion wires. However, due to the special structure of this type of wire, there is grease between the outer aluminum wire layer and the central steel core. Filling, it is impossible to use ordinary wire clamps to anchor in the air, making subsequent technical transformation very difficult. In addition, the lines using this conductor are all located in areas with developed economy, important loads and huge power outage pressure, and the problem of green compensation is relatively prominent. During the transformat...

AI Technical Summary

Problems solved by technology

The entire construction process is not only time-consuming, but also because the special aluminum rope clamp is limited by product technical parameters, the anchorage force cannot exceed 70% of the wire tension, and there is a risk of falling from a high altitude during the wire tightening process, making it impossible to work on the wire

Second, due to the long-term operation of the gap-type heat-resistant capacity-enhancing conductor, the outer layer of aluminum wire absorbs a large amount of pollutants, and there is a safety risk in using the aluminum-specific tight rope clamp to anchor the conductor alone.

Furthermore, if the non-ground construction method is adopted, the holding force of the aluminum special tight rope clamp near the anchor tool needs to reach 105% of the wire tension, which will cause irreversible damage to the wire

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