A compact two-piece V-shaped suspension string for light ice areas

Abstract

The invention provides a compact type dual-connection V-shaped suspension string for a light-ice area. The compact type dual-connection V-shaped suspension string comprises a suspension connection plate and two suspension string bodies distributed in a V-shaped mode. Each suspension string body comprises a composite insulation sub-string formed by connecting composite insulators, and the two ends of the composite insulation sub-string are connected with an iron tower cross arm and a suspension connection plate. A connection plate I and a Z-shaped right-angled hanging plate are sequentially arranged between the composite insulation sub-string of one dual-connection suspension string body and the suspension connection plate; a connection plate II and a right-angled hanging plate are sequentially arranged between the composite insulation sub-string of the other dual-connection suspension string body and the suspension connection plate. Compared with the prior art, the compact type dual-connection V-shaped suspension string for the light-ice area has the advantages that the structural strength of hardware fittings and the overall intensity of the suspension string are improved, and normal operation of an electric transmission line is guaranteed; meanwhile, the length of the suspension string is effectively shortened, accordingly, the height of the tower body of the electric transmission iron tower is reduced, and the manufacturing cost, the transportation cost and the construction cost of the hardwire fittings and the iron tower are lowered.

Description

technical field [0001] The invention relates to a hanging string, in particular to a compact two-connected V-shaped hanging string for light ice areas. Background technique [0002] Straight line towers with iron tower structure are widely used in UHV overhead transmission lines to support the tension section between conductors and ground wires, and are the most widely used tower types in transmission lines. The suspension insulator string is an important part of the straight tower that connects the wire and the iron tower and maintains the electrical insulation between the transmission wire and the iron tower. [0003] In addition to the electrical insulation performance of the transmission wire and the iron tower itself, the suspension insulator string also bears the gravity load from the wire, the horizontal wind load, and its own gravity load. Suspended insulator strings of UHV transmission lines are generally composed of connecting fittings and composite insulators mad...

AI Technical Summary

Problems solved by technology

[0005] With the construction of UHV, 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, which will inevitably increase the use of wires, the tonnage of the fitting string, the size and tonnage of the fittings, and the iron tower. The structural size and the width of the line corridor, etc., thus increasing the project investment

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