High-efficiency enhanced type lead wire continuity device

Abstract

The invention relates to a high-efficiency enhanced type lead wire continuity device, belonging to a lead wire continuity hardware tool. The high-efficiency enhanced type lead wire continuity device is higher in installation efficiency and comprises a crimping pipe and a reinforced preformed armor rod, a lead wire is abutted by the crimping pipe, the reinforced preformed armor rod is wound and wrapped outside the lead wire and the crimping pipe, 2-5 reinforced preformed armor rods are connected into a whole in parallel and then are wound into a helical shape to form a preformed beam; the helical rotating direction of the preformed beam is the same with the rotating direction of the lead wire, the length of the preformed beam is 1.5-10 times of the length of the crimping pipe, and two ends of the preformed beam, which exceed the crimping pipe, have the same length; and the helical pitch I, which is corresponding to the crimping pipe, of the preformed beam is equal to the length of the crimping pipe, and the helical pitch II of two exceeding parts is 5-50 percent of the helical pitch I. In the invention, the preformed beam structure with single preformed layer and a plurality of parallel reinforced preformed armor rods is adopted, thus the high-efficiency enhanced type lead wire continuity device is convenient for installation. Compared with winding of single reinforced preformed armor rod, the invention has the advantage that the field installation and usage in the invention are more convenient.

Description

technical field [0001] The invention relates to a wire splicing fitting, in particular to a pre-twisted wire splicing tube reinforced splicing device. Background technique [0002] A very large number of connecting pipes are used on the electric power overhead line, and the steel core part and the aluminum layer part of the steel-reinforced aluminum stranded wire are respectively connected in layers by hydraulic pressure or clamping technology. The disadvantages are: 1. The splicing process of the construction is relatively complicated, requiring special crimping equipment, and the installation effect is largely affected by the human factors of the operator, which is easy to cause physical damage (mechanical damage) to the wire, resulting in the occurrence of wire Strand fracture; 2. The operating life of the power line is often required to exceed 30 years. During the operation, due to the instability of the line operating load, the temperature repeatedly rises and falls, f...

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. The splicing process of the construction is relatively complicated, requiring special crimping equipment, and the installation effect is largely affected by the human factors of the operator, which is easy to cause physical damage (mechanical damage) to the wire, resulting in the occurrence of wire Strand fracture; 2. The operating life of the power line is often required to exceed 30 years. During the operation, due to the instability of the line operating load, the temperature repeatedly rises and falls, forming a thermal cycle, which increases the connection resistance, thereby increasing the line loss; at the same time The mechanical strength of the connection is reduced, which poses a threat to the safe operation of the transmission line

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