Compression-connecting pipe applied to parallel connection of cables and applications thereof

Abstract

The invention discloses a compression-connecting pipe applied to parallel connection of cables and applications thereof. The compression-connecting pipe comprises a main body, and also comprises a main body cover, wherein the main body is provided with at least two slots, the upper portion of the main body is provided with a cable inlet, and the main body cover can be inserted into the inlet after cables are placed into the slots, for executing compression-connecting. With applications of the compression-connecting pipe in fixation of tail wires of stay wires of overhead power lines and shunting of overhead power lines, the problems that in the prior art bolts are easy to loosen and corrode and binding by iron wires is high in maintenance cost are overcome; the compression-connecting pipe is stable in performance, firm in connection, long in service life and low in failure rate.

Description

technical field [0001] The invention relates to a crimping tube used for parallel connection of cables in electric power engineering and its application. Background technique [0002] It is often encountered in the fixed connection of parallel cables in power engineering. For example, the shunt wiring of overhead power lines is fastened with parallel groove clamps, such as Figure 5 As shown, the parallel groove clamp is composed of upper and lower splints. There is a wire groove on the splint. After the power line is placed in the wire groove, it is compressed by bolt c to realize shunting. The nuts and bolts are the most prone to failure of parallel trench clamps. On the one hand, the bolts are easy to be untightened or loosened under external vibrations, which will increase the contact resistance and cause heat, and burn out the equipment; on the other hand, the bolts and nuts are easy to rust. , the service life is not long, and it is troublesome to replace. In addition,...

AI Technical Summary

Problems solved by technology

The nuts and bolts are the most prone to failure of parallel trench clamps. On the one hand, the bolts are easy to be untightened or loosened under external vibrations, which will increase the contact resistance and cause heat, and burn out the equipment; on the other hand, the bolts and nuts are easy to rust. , the service life is not long, and it is troublesome to replace. In addition, the bolts are too long and easy to discharge. Many unfavorable factors brought by the bolts lead to failures at the joint clamp

Another example is the overhead power line cable, such as Image 6 As mentioned above, at present, the tail wires of overhead power lines are fixed with iron wires wrapped around them, and anti-rust treatment should be done every 3-5 years, otherwise the iron wires will rust and fall off, and it may cause corrosion of the wires

According to statistics, there are more than 10 million stay wires in the existing overhead power lines in the country. On average, it costs 40 yuan for labor costs to do antirust treatment for each stay wire, and 400 million yuan for rust prevention maintenance for the stay wires of the existing overhead power lines in the country. Above, the number of pull wires is large, and the maintenance cost is astonishing

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