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Novel flame-retardant fireproof cable

A fireproof cable, a new type of technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problem of high cost, achieve the effects of low cost, not easy to short circuit, and easy to make

Active Publication Date: 2014-12-24
JIANGSU ZHONGLI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the physical properties of flame retardancy and fire resistance and oxygen barrier. Under the strong action of an external fire source, the surface of the cable will not spread flames, and the surrounding materials of the cable core wire will be completely burnt and charred, and the insulation layer of the cable conductor will not be scorched by heat. , the conductor still carries the load to work, but the cost is quite high

Method used

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  • Novel flame-retardant fireproof cable
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  • Novel flame-retardant fireproof cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] please see figure 2 , a new type of flame retardant and fireproof cable, which is composed of two insulated wires, an aluminum-plastic composite tape 4 covering the insulated wires, a braided layer 5 located outside the aluminum-plastic composite tape, and an extrusion coating on the outside of the braided layer The inner sheath 6, the armor layer 7 coated outside the inner sheath, and the outer sheath 8 coated outside the armor layer by extrusion molding; it is characterized in that each insulated wire is composed of a conductor 1, a sheath The polyethylene insulating layer 2 that covers the conductor is composed of a ceramic insulating layer 21 that is extruded and coated on the polyethylene insulating layer; there is a drain core wire 3 on the outside of the insulating wire, and the aluminum-plastic composite tape connects the drain core wire and the insulating wire Coated at the same time; two insulated wires are a pair, which are placed in parallel or twisted with...

Embodiment 2

[0027] please see image 3 , a new type of flame-retardant and fire-resistant cable, which is composed of four insulated wires, an aluminum-plastic composite tape 4 covering the insulating wires, a braided layer outside the aluminum-plastic composite tape 5, and an extrusion-coated braided layer The inner sheath 6, the armor layer 7 coated outside the inner sheath, and the outer sheath 8 coated outside the armor layer by extrusion molding; it is characterized in that each insulated wire is composed of a conductor 1, a sheath The polyethylene insulating layer 2 that covers the conductor is composed of a ceramic insulating layer 21 that is extruded and coated on the polyethylene insulating layer; there is a drain core wire 3 on the outside of the insulating wire, and the aluminum-plastic composite tape connects the drain core wire and the insulating wire Covering at the same time; the four insulated wires form two pairs, and the drainage core wire is located in the outer gap for...

Embodiment 3

[0029] please see Figure 4 , a new type of flame retardant and fireproof cable, which is composed of four insulated wires, an aluminum-plastic composite tape 4 covering the insulated wires, a braided layer outside the aluminum-plastic composite tape 5, and an extrusion-coated braided layer The inner sheath 6, the armor layer 7 coated outside the inner sheath, and the outer sheath 8 coated outside the armor layer by extrusion molding; it is characterized in that each insulated wire is composed of a conductor 1, a sheath The polyethylene insulating layer 2 that covers the conductor is composed of a ceramic insulating layer 21 that is extruded and coated on the polyethylene insulating layer; there is a drain core wire 3 on the outside of the insulating wire, and the aluminum-plastic composite tape connects the drain core wire and the insulating wire Covering at the same time; the four insulated wires form two pairs, and the drainage core wire is located in the inner gap formed b...

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Abstract

The invention belongs to the technical field of wires and cables, and particularly relates to a novel flame-retardant fireproof cable which comprises two or four insulated wires, an aluminum-plastic composite tape, a braided layer, an internal sheath, an armoring layer and an external sheath. The insulated wires are covered with the aluminum-plastic composite tape; the braided layer covers the aluminum-plastic composite tape; the internal sheath covers the braided layer in an extrusion manner; the armoring layer covers the internal sheath; and the external sheath covers the armoring layer in an extrusion manner. The novel flame-retardant fireproof cable is characterized in that each insulated wire is composed of a conductor, a polyethylene insulating layer covering the conductor, a ceramic insulating layer covering the polyethylene insulating layer in an extrusion manner; a guide core is arranged outside the insulated wires, and the guide core and the insulated wires are covered with the aluminum-plastic composite tape. The novel flame-retardant fireproof cable has the advantages of low cost, convenience in manufacturing, short manufacturing time, excellent flame retardant and fireproofing performance, short-circuit resistance and high cable control capacity.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a novel flame-retardant and fireproof cable. Background technique [0002] Flame-retardant and fire-resistant cables are generally laid along the railway to connect equipment and machine rooms. In the prior art, the structure of a typical flame retardant and fireproof cable is as follows figure 1 As shown, it is composed of insulated wires placed in parallel or twisted, aluminum-plastic composite film 4 covering the insulated wires, braided copper wires 5 outside the aluminum-plastic composite film, extrusion coating on the outside of the braided copper wires Polyethylene inner sheath 6. Double-layer galvanized steel strip wrapped outside the polyethylene inner sheath 7. Polyethylene or halogen-free low-smoke flame-retardant polyolefin coated outside the double-layer galvanized steel strip by extrusion The outer sheath 8 is formed; the insulated wire is composed of ...

Claims

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Application Information

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IPC IPC(8): H01B7/295
Inventor 孙建宇陈波瀚陈耀春曾北昌张朝阳张慧芳
Owner JIANGSU ZHONGLI GRP CO LTD
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