Ice-melting type overhead earth wire

An overhead ground wire and ice-melting technology, which is applied to conductors, insulated cables, electrical components, etc., can solve the problem that the overhead ground wire does not have the function of melting ice, and achieve the effect of protecting the safety of operation

Active Publication Date: 2012-02-22
GOLD CUP ELECTRIC APP HENGYANG CABLES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an ice-melting type overhead ground wire for the existing overhead ground wire that does not have the function of melting ice

Method used

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  • Ice-melting type overhead earth wire
  • Ice-melting type overhead earth wire

Examples

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Embodiment Construction

[0010] The present invention is further explained as follows with reference to accompanying drawing in conjunction with specific embodiment:

[0011] see figure 1 , the ice-melting type overhead ground wire shown in the figure includes a galvanized steel wire 1, the galvanized steel wire 1 is arranged in a horizontal manner, and the galvanized steel wire 1 adopts a φ2.5mm ordinary strength galvanized steel wire.

[0012] There are 6 conductive elements concentrically stranded on the galvanized steel wire 1, each conductive element is a copper core insulated wire, the conductor 2 of the copper core insulated wire is φ1.65mm, the purity is not less than 99.95%, and the resistivity is not greater than 0.017241 Ω.mm 2 / m, the elongation at break is not less than 25% oxygen-free annealed copper wire twisted. The insulating layer 3 of the copper core insulated wire is made of black weather-resistant cross-linked polyethylene insulating material, and the nominal thickness of the in...

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Abstract

The invention discloses an ice-melting type overhead earth wire comprising a galvanized steel wire, a conducting element concentrically stranded on the galvanized steel wire, a galvanized steel strip concentrically lapped with a butt gap on the conducting element, and a reinforcing element concentrically stranded on the galvanized steel strip, wherein the conducting element is a copper core insulated wire, insulation of the copper core insulated wire adopts weather resistant cross-linked polyethylene, and the reinforcing element is a plurality of galvanized steel wires. The invention has the advantage that when a sheet of ice and snow is frozen on the ice-melting type earth wire, the insulated copper core is charged, and the outer layer galvanized steel wires generate eddy heat to melt the covered ice and snow, thereby protecting the overhead earth wire to be in safe operation.

Description

Technical field: [0001] The invention relates to the technical field of cables, in particular to an overhead wire, in particular to an ice-melting type overhead ground wire with an ice-melting function. Background technique: [0002] At present, almost no overhead ground wires have self-melting ice function. Once extreme ice and snow weather occurs, it is very easy to cause accidents such as collapse and disconnection of overhead lines, resulting in large-scale power outages. Invention content: [0003] The technical problem to be solved by the present invention is to provide an ice-melting type overhead ground wire because the existing overhead ground wire does not have an ice-melting function. When there is extreme low temperature and bad weather, the surface of the overhead ground wire will freeze. At this time, the copper conductor of the ice-melting type overhead ground wire will be charged with a certain load of current, so the outer galvanized steel wire will genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/42H01B7/02H01B7/22
Inventor 周祖勤陈善求李芝兰
Owner GOLD CUP ELECTRIC APP HENGYANG CABLES
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