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Overhead insulated power cable

A power cable and overhead insulation technology, which is applied in the direction of insulated cables, power cables, power cables for overhead applications, etc., can solve the problems of high operation failure rate, large line loss, poor wind and snow resistance, etc., and achieve large transmission capacity , long service life, and the effect of improving electrical conductivity

Pending Publication Date: 2018-07-24
JIANGSU LONG E CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, the overhead insulated cables in the prior art have exposed many outstanding problems in use: low tensile strength, poor wind and snow resistance, small transmission capacity, large line loss, small span when erecting, high failure rate in operation, and long service life. short wait

Method used

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Such as figure 1 As shown, an overhead insulated power cable includes a conductor support frame 1, and a plurality of arc-shaped grooves 2 are opened on the conductor support frame, and an aluminum alloy conductor 3 is correspondingly provided in each arc-shaped groove, which is combined into a cable Core; a filling layer 4 is provided in the gap of the cable core, and a heat-resistant 105°C weather-resistant chemical cross-linked polyethylene insulating layer 5 is extruded outside the cable core, and a heat-resistant 105°C weather-resistant chemical cross-linked polyethylene insulating layer is placed on the outside of the cable core. The outer braided steel wire shielding layer 6 is wrapped with an impact-resistant layer 7 outside the steel wire shielding layer, and an oxygen barrier layer 8 is arranged outside the impact-resistant layer, and an outer sheath 9...

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Abstract

The present invention discloses an overhead insulated power cable. The overhead insulated power cable comprises a conductor support frame, the conductor support frame is provided with a plurality of arc-shaped grooves, each arc-shaped groove is correspondingly internally provided with one aluminum alloy conductor to form a cable core; filling layers are arranged at gaps of the cable core, a weather-proof chemical crosslinked polyethylene insulating layer with heat resisting 105 DEG C is extruded on the external portion of the cable core, a steel wire shielding layer is weaved at the external portion of the weather-proof chemical crosslinked polyethylene insulating layer with heat resisting 105 DEG C, a shock resistance layer is wrapped at the external portion of the steel wire shielding layer, an oxygen insulation layer is arranged at the external portion of the shock resistance layer, and an outer sheath is arranged at the external portion of the oxygen insulation layer; and the outersheath is provided with a ridge of ice-snow resistance. The overhead insulated power cable is good in heat resistance and thermal ageing performance, good in flame resistance aging performance and good in insulation performance.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to an overhead insulated power cable. Background technique [0002] With the rapid development of the national economy, as the main artery of the national economy, the amount and scope of wire and cable are increasing. In recent years, power plants, substations, smelting and petrochemical industries have a great demand for cables. Power cables are transmission lines used to transmit and distribute electric energy. They are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. They are also specially used in subway tunnels, Electric wires in places such as light rail. [0003] At present, most overhead cables generally have short service life, cannot be erected for long distances, have poor insulation effect, the material of the filling layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/17H01B7/18H01B7/28H01B7/29H01B7/36H01B9/00H01B9/02
CPCH01B7/0275H01B7/17H01B7/1805H01B7/186H01B7/1875H01B7/1895H01B7/28H01B7/29H01B7/366H01B9/006H01B9/008H01B9/024
Inventor 蒋临风芮逸芮文宰
Owner JIANGSU LONG E CABLE
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