Thin-wall double-layer insulated cable with high voltage resistance

A double-layer insulation, high-voltage technology, applied in the direction of insulated cables, insulated conductors, non-insulated conductors, etc., can solve the problems of rough interface, fluctuation in outer diameter, difficult bonding, etc., to reduce weight, save wiring space, and excellent resistance. Chemical Corrosive Effects

Inactive Publication Date: 2012-10-10
SUZHOU CABLEPLUS PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if high-density polyethylene is used as the inner insulation layer and semi-hard flame-retardant PVC is used as the outer insulation layer, there will be problems such as difficulty in bonding between the inner and outer insulation layers, rough interface and fluctuations in outer diameter

Method used

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  • Thin-wall double-layer insulated cable with high voltage resistance

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] please see figure 1 , the given conductor 1 is composed of a plurality of tinned copper wires with a diameter of 0.1-0.3㎜ twisted, an inner insulating layer 2 made of cross-linked polyolefin is combined outside the conductor 1, and an inner insulating layer 2 is combined outside the inner insulating layer 2. The outer insulating layer 3 is made of polyvinylidene fluoride. In this embodiment, the thicknesses of the inner and outer insulating layers 2 and 3 are the same, but it is also possible to make the thickness of the inner insulating layer 2 thicker than the thickness of the outer insulating layer 3, and vice versa. The thicknesses of the insulating layers 2 and 3 are both 0.8 mm.

Embodiment 2

[0017] Only the thickness of the inner insulating layer 2 is changed to 0.45 mm, and the thickness of the outer insulating layer 3 is changed to 0.05 mm, and the rest are the same as the description of embodiment 1.

Embodiment 3

[0019] Only the thickness of the inner insulating layer 2 is changed to 0.08 mm, and the thickness of the outer insulating layer 3 is changed to 0.10 mm, and the rest are the same as the description of embodiment 1.

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Abstract

The invention relates to a thin-wall double-layer insulated cable with high voltage resistance, which belongs to the technical field of electric wires and cables, and comprises a conductor, and an inner insulated layer and an outer insulated layer combined outside the conductor sequentially, wherein the conductor is a tinned copper wire with a diameter being 0.1-0.3mm; the inner insulated layer is cross-linked polyolefin; and the outer insulated layer is polyvinylidene fluoride. The thin-wall double-layer insulated cable with high voltage resistance has the advantages that a favorable combination effect between the inner insulated layer and the conductor as well as between the inner insulated layer and the outer insulated layer is realized; the inner insulated layer adopts the cross-linked polyolefin and the outer insulated layer adopts the polyvinylidene fluoride, so that the cable has excellent chemical resistance, high temperature resistance, oxidation resistance, weather resistance, ultraviolet radiation resistance and the like; and when the invention is compared with the prior art, the thicknesses of the inner insulated layer and the outer insulated layer are reduced, so that the weight is reduced, and a wiring space is saved.

Description

technical field [0001] The invention belongs to the technical field of wires and cables, and in particular relates to a thin-walled high-voltage resistant double-layer insulated cable, which is suitable for rail transit vehicles and motors. Background technique [0002] Taking the subway in the field of rail transit as an example, since the subway vehicle has strict restrictions on space and weight, and the vehicle’s electrical control lines are much more than ordinary railways, in order to reduce the weight of bundled wires and cables and save time for laying wires and cables Therefore, high-performance thin-wall insulated cables are generally used. In addition, with the rapid development of the automobile industry and the motor manufacturing industry, electronic control technology is widely used, and people have more and more requirements for the safety, comfort, economy and emission cleanliness (ie environmental protection) of automobiles. High, the electrical configurat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/04H01B7/17H01B5/08H01B1/02
Inventor 郭玉双邱建华李东琦蓝风华
Owner SUZHOU CABLEPLUS PHOTOELECTRIC TECH
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