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Seismic-resistant electrical cable

A power cable and semi-conductive layer technology, applied in the field of power cables, can solve problems affecting earthquake relief and post-earthquake reconstruction work, affecting national economic development, social and economic losses, etc., to achieve uniform force, increase mechanical properties, improve resistance The effect of the pressure effect

Inactive Publication Date: 2011-08-17
江苏天地龙电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to frequent large and small earthquakes in recent years, electrical equipment such as wires and cables will be damaged to varying degrees. The development of the national economy has also seriously affected the earthquake relief and post-earthquake reconstruction work.

Method used

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with the accompanying drawings and the embodiment of the 35kV earthquake-resistant power cable.

[0009] As shown in the figure: Conductor 1 is wrapped with a layer of semi-conductive tape 2; outside of semi-conductive tape 2 is a fully dry three-layer co-extruded conductor shielding layer 3, insulating layer 4, and insulating shielding layer 5; insulating shielding 5 is overlapped and wrapped A layer of copper tape forms the metal shielding layer 6; three metal shielding wire cores are twisted into a cable, and the gap between the cable cores is filled with vulcanized rubber strips 7; the cable core is wrapped with a layer of reinforced non-woven fabric to form the wrapping layer 8; Layer 8 is extruded with a layer of isolation sleeve 9; the isolation sleeve 9 is provided with a left-hand thin round steel wire (wire diameter 0.8-2.5mm) armor layer 10, and a right-hand thick round steel wire (steel wire...

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Abstract

The invention relates to a seismic-resistant electrical cable comprising a conductor, a semiconductive layer, a conductor shielding layer, an insulating layer, an insulating shielding layer, a copper strip shielding layer, an elastic body packing, a wrapping layer, an isolating sleeve, a thin round steel wire armoring layer, a thick round steel wire armoring layer, a copper conductor, an isolated layer and an outer sheath. The seismic-resistant electrical cable is characterized in that a semiconductive band layer is wrapped outside the conductor; insulating materials, packing materials, isolating sleeve materials and outer sheath materials are all elastic body polymers; and double-layer steel wire armoring is adopted for the armoring layers. The invention has higher shearing rigidity, bending rigidity and damping ratio, obvious effects of shear resistance, bending moment, axial force, torsion, and the like, and excellent seismic-resistant and seismic-proof capacity.

Description

technical field [0001] The invention relates to a power cable, which is widely used in power systems with a rated voltage of 35kV and below, and belongs to the technical field of shockproof and shockproof cables. Background technique [0002] As the "artery vessel" of modern industrial construction - wire and cable, it has an indelible role in promoting society. There are various radiation methods of wires and cables, mainly overhead, through pipes, direct burial, and bridges. With the continuous progress of the society, people pay more attention to the urban environment, greening the urban environment and improving the quality of life. Therefore, people turn the "Skynet" overhead line into an underground pipeline transmission line to beautify the environment. Due to frequent large and small earthquakes in recent years, electrical equipment such as wires and cables will be damaged to varying degrees. The development of the national economy has also seriously affected the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/02
Inventor 周俊民
Owner 江苏天地龙电缆有限公司
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