Tension string of five-connected double-hanging point insulators

Abstract

The invention provides a quintuplet double-hanging-point strain insulator string. The strain insulator string is formed in the manner that combined insulators are connected in series and are arranged in a quintuplet mode. Connecting pieces which are connected with a tower and a strain clamp are arranged at the two ends of the strain insulator string respectively. A U-shaped hanging ring, a ZBD type right-angle hanging plate and a parallel hanging plate are sequentially arranged between each of the two ends of the strain insulator string and the corresponding connecting piece. A triangular connecting plate is arranged between the ZBD type right-angle hanging plate and the parallel hanging plate which are located at the two ends of the strain insulator string on the two sides. Compared with the prior art, the quintuplet double-hanging-point strain insulator string has the advantages that the mature machining technology is adopted, the structural strength of hardware fittings and the strength of metal strings are easily guaranteed, the structural strength of the strain insulator string structure can be effectively improved by optimizing the structural size of the hardware fittings, connecting forms and the number of insulators, and therefore a wire is dragged and fixed to a tension support, and normal running of a power transmission line is ensured.

Description

technical field [0001] The invention relates to a strain string of insulators, in particular to a strain string of five-connected double hanging point insulators. Background technique [0002] With the rapid development of social economy, users' demand for electricity is also increasing rapidly. However, the distribution of primary energy is uneven and the distance is long, and the land for transmission channels is becoming more and more scarce. In order to solve the above problems, it is a new solution to increase the transmission capacity and build a transmission line with a higher voltage level as the backbone network for long-distance transmission. [0003] The tension string in the overhead transmission line is used to pull and fix the transmission wire on the tension tower, and is an important type of fitting string in the transmission line. [0004] With the construction of UHV, the voltage level is getting higher and higher, it is necessary to increase the cross se...

AI Technical Summary

Problems solved by technology

However, the distribution of primary energy is uneven and the distance is long, and the land for transmission channels is becoming more and more scarce.

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