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Three-layer insulation wire

A three-layer insulation and mixed layer technology, applied in the direction of insulated cables, insulated conductors, conductors, etc., can solve the problems of insufficient outer layer strength, vulnerable insulation layer, poor voltage and insulation, etc.

Inactive Publication Date: 2012-02-15
SHENZHEN YUEDONGXIN TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] However, the existing three-layer insulated wire products mainly have insufficient strength of the outer layer, and the insulation layer is easily damaged after being impacted, squeezed or bent by an external force, resulting in hidden dangers of voltage and poor insulation

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Embodiment Construction

[0012] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0013] see figure 1 , in the prior art of the present invention, a schematic diagram of a three-layer insulated wire structure, including: a metal core wire 10, a first PET and PEN mixed layer 20, a second PET and PEN mixed layer 30 and Nylon layer 40.

[0014] The range of PEN in the first PET and PEN mixed layer 20 and the second PET and PEN mixed layer 30 is: 5%-60% (weight percentage), and the balance is PET. Due to the excellent insulation properties of PET (polyethylene terephthalate) and PEN (polyethylene naphthalate), the mixed material formed by mixing the two materials and extruding them is used as a three-layer insulation The insulation layer of the line is the most suitable choice, preferably, the proportion of the two is tha...

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Abstract

The invention discloses a three-layer insulation wire. The insulation wire comprises a metal core wire, wherein a first PET (polyethylene terephthalate) / PEN (polyethylene naphthalate) mixed layer, a second PET / PEN mixed layer and a nylon layer are arranged outside the metal core wire in sequence. The three-layer insulation wire has the following beneficial effect: the insulating layer of the three-layer insulation wire is manufactured through extrusion molding after proportioning PET and PEN with good insulating properties, thus achieving the effects of resisting high pressure and high temperature and bearing strong external force impact.

Description

technical field [0001] The invention relates to a three-layer insulated wire. Background technique [0002] As we all know, three-layer insulated wire is a high-performance insulated wire. This wire has three insulating layers, the middle is a metal core wire, and the first layer is a golden polyamide film with a thickness of several microns. It can withstand 3KV pulse high voltage, the second layer is a highly insulating paint coating, and the third layer is an insulating layer. Although the total thickness of the insulating layer is small, its advantage is that the insulation strength is high, and any two layers can withstand AC 3000V safety voltage, high current density. [0003] However, the existing three-layer insulated wire products mainly have insufficient strength of the outer layer, and the insulation layer is easily damaged after being impacted, squeezed or bent by an external force, thereby causing hidden dangers of voltage and poor insulation. Contents of the...

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Application Information

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IPC IPC(8): H01B7/02
Inventor 汤怀东
Owner SHENZHEN YUEDONGXIN TECH
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