Composite structure overhead conductor capable of melting ice and snow automatically

Abstract

The invention provides a composite structure overhead conductor capable of melting ice and snow automatically. An inner stranded cable core layer is wrapped by a force-sensitive sensing layer, the force-sensitive sensing layer is wrapped by a thermosensitive heating layer, and the thermosensitive heating layer is wrapped by an outer stranded cable core layer. The composite structure overhead conductor is mainly used in areas where snow disasters or freezing rain disasters are severe, has strong capability in resisting ice and snow, and is low in comprehensive cost and cable loss and free of post-maintenance.

Description

technical field

[0001] The invention relates to a wire, in particular to an overhead wire with a compound structure for automatically melting ice and snow. Background technique

[0002] The existing overhead conductors are mainly made of steel-cored aluminum stranded wires. The outer surface of this conductor is helical, which can meet the requirements of safe power transmission in the absence of natural disasters such as snow disasters and freezing rain. In the case of weather, the surface of the wire is prone to snow accumulation, ice hanging or even ice coating, and the weight of the wire increases significantly, causing the wire to break or the tower to collapse, seriously damaging the power supply network. In 2008, there was continuous heavy snowfall and freezing rain in the south. A large number of power towers collapsed due to the heavy snow and ice, which caused power outages in 17 provinces and regions. The power supply system in some areas was paralyzed. Government...

Images