Double-layer metal cladded flame-retardant electric cable

A wire and cable, double-layer metal technology, applied in the field of electrical products, can solve problems such as high cost, obstructing sight, and weak conductivity, and achieve the effects of reducing material costs, reducing accidental losses, and less smoke generation

Inactive Publication Date: 2011-11-23
贵州长江通信实业有限公司
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Problems solved by technology

[0002] At present, the wires and cables produced by Chinese enterprises are made of conductive core wires and insulating materials. The conductive core wires are mostly made of aluminum or copper, and the outer insulating materials are mainly polyvinyl chloride and polyethylene materials. Yes: the conductivity of copper is better than that of aluminum, but the cost is higher; while the flexibility of aluminum is better, the conductivity is

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  • Double-layer metal cladded flame-retardant electric cable
  • Double-layer metal cladded flame-retardant electric cable

Examples

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Example Embodiment

[0011] As shown in the figure, the double-layer metal cored flame-retardant wire and cable of the present invention is formed by covering an insulating layer 2, a conductive core wire 1, and the conductive core wire 1 is composed of double layers of different metal materials. The conductive core wire 1 shown in the figure is composed of copper 4 coated aluminum core wire. In addition, it can also be composed of copper clad steel or aluminum clad steel core wire.

[0012] The insulating layer 2 is a smokeless flame-retardant nano-modified polyolefin polymer insulating material, and the insulating layer 2 is covered with a flame-retardant sheath 3. The insulating layer 2 and the flame-retardant sheath 3 are made by mixing nano modified polyolefin polymer, nano flame retardant, nano smoke suppressant and additives. The weight percentage of each component is: nano-modified polyolefin polymer 30%-95%, nano-flame retardant 0.1%-50%, nano-smoke suppressant 0.01%-50%, and additive 1%-50%...

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Abstract

The invention relates to a double-layer metal cladded flame-retardant electric cable which is manufactured by cladding an insulation layer and a conductive core wire, wherein the conductive core wire is manufactured by cladding double layers of different metal materials; the insulation layer is made of a smokeless and flame-retardance nano modified polyvinyl hydrocarbon polymer insulation material; a flame-retardance jacket is cladded outside the insulation layer; and the conductive core wire is made of copper clad aluminum, copper clad steel or aluminum clad steel. The double-layer metal cladded flame-retardant electric cable is safe and reliable, has less smoke generation amount in a combustion environment when accidents happen, better flame retardance and no harmless gases or corrosivegases and can be used for effectively reducing accidental loss and reducing material cost.

Description

technical field [0001] The invention relates to a wire and cable, in particular to a double-layer metal-cored flame-retardant wire and cable, which belongs to the technical field of electric products. Background technique [0002] At present, the wires and cables produced by Chinese enterprises are made of conductive core wires and insulating materials. The conductive core wires are mostly made of aluminum or copper, and the outer insulating materials are mainly polyvinyl chloride and polyethylene materials. Yes: the conductivity of copper is better than that of aluminum, but the cost is higher; while the flexibility of aluminum is better, the conductivity is weaker, and the polyvinyl chloride and polyethylene wires and cables in the insulating material are prone to short circuit accidents in the electrical system. Fire will produce harmful gas, especially the chlorine content of polyvinyl chloride insulation material is as high as 56%. When burning, it will release high con...

Claims

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Application Information

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IPC IPC(8): H01B7/02H01B7/295H01B1/02H01B3/44
Inventor 胡汉乐
Owner 贵州长江通信实业有限公司
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