V-type duplex single-hanging point four-splitting suspension string

Abstract

The invention relates to a suspension string used for electric power transmission lines and particularly relates to a V-type duplex single-hanging point four-splitting suspension string and which is suitable for increasingly high voltage levels, is anti-thunder and ensures the safe and stable operation of the power grid. The V-type duplex single-hanging point four-splitting suspension string comprises a four-hanging point four-splitting connection plate, two groups of suspension strings arranged in a V shape, an arcing horn I, an arching horn II, an arching ring I and an arching ring II. Each suspension ring comprises insulator chains formed by connecting insulators. One end of each insulation chain is connected with an iron tower cross arm, and the other end is connected with the four-hanging point four-splitting connection plate. The arching ring I and the arching ring II are matched with the arcing horn I and the arching horn II in use. The lead partition number is increased, and the V-type duplex single-hanging point four-splitting suspension string can be suitable for increasingly high voltage levels. The stress structure is reasonable, and the normal operation of the power transmission line is ensured. The length of the suspension ring is shortened, and the armour clamp and iron tower cost is lowered. The V-type duplex single-hanging point four-splitting suspension string is anti-thunder and suitable for two splitting, three splitting, four splitting, six splitting, eight splitting and the like.

Description

technical field [0001] The invention relates to a suspension string for power transmission lines, in particular to a V-shaped double-connection single suspension point four-split suspension string. Background technique [0002] With the construction of high voltage, the voltage level is getting higher and higher, it is necessary to increase the cross section of the wire and the number of split wires, so that the use of the wire must be increased. , also makes the structural size between the hanging points of the iron tower more and more large and the width of the line corridor increases, the weight of the iron tower is getting heavier, and the investment of the project also increases thereupon. Line outages or insulator string drop accidents caused by lightning strikes will cause great harm to the safe operation of the entire power grid. [0003] The State Intellectual Property Office published a utility model patent on 2014-12-24 (application number: 2014204119481 name: a ...

AI Technical Summary

Problems solved by technology

Its disadvantages are that it cannot adapt to the high-voltage transmission lines with higher and higher voltage levels; it cannot prevent lightning strikes and protect the safety of the power grid

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