Shielding type digital symmetrical cable

A symmetrical cable, shielded technology, applied in the direction of the cable with double-stranded/quad-stranded, can solve the problem of affecting the anti-interference ability of the cable, and achieve good working conditions, good flexibility, and convenient wiring construction. Effect

Inactive Publication Date: 2012-11-14
ANHUI JIANGHUAI CABLE GROUP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a shielded digital symmetrical cable to solve the shielding performance of the shielding layer of the cable. The shielding effect is more obvious when the frequency is higher, but how to solve the interference at lower frequencies also affects the overall anti-interference ability of the cable. question

Method used

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  • Shielding type digital symmetrical cable

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Embodiment Construction

[0016] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] Such as figure 1 As shown, this embodiment provides a shielded digital symmetrical cable, which includes a cross skeleton 1, an inner tape layer 2, a shielding layer 3, an outer tape layer 4, and an outer sheath 5 arranged in sequence from the center to the outside. 1 and the inner tape layer 2 form four chambers 8, each of the chambers 8 is equipped with a pair of twisted wires, the pair of twisted wires is formed by twisting two insulated single wires, and the insulated The single wire includes a core 6 and an insulating layer 7, the core 6 is wrapped with an insulating layer 7, the core 6 is an annealed copper core, the insulating layer 7 is a solid polyethylene insulating layer, and the cross frame 1 is Polyethylene cross frame 1, the outer diameter of the cross frame 1 is 4.8mm, the blade thickness of the cross frame 1 is 0.023mm...

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Abstract

The invention provides a shielding type digital symmetrical cable which comprises a crossed framework, an inner belting layer, a shielding layer, an outer belting layer and an outer sheath from the center to the outside in sequence, wherein the crossed framework and the inner belting layer form four chambers; each chamber is internally provided with a twisted pair set; the twisted pair set is formed by twisting two insulating single cables; each insulating single cable comprises a cable core and an insulating layer; the insulating layer is wrapped outside the cable core; and the crossed framework is a polyethylene crossed framework. The shielding type digital symmetrical cable has the advantages of excellent flexibility and convenience in cabling construction. The crossed framework enhances the tensile performance and the extrusion resistant performance of a cable. The low-frequency disturbance of the cable is effectively offset by using the balance characteristic of the twisted pair set by setting a twisted pair pitch, so as to ensure excellent working condition of the cable in low-frequency disturbance; and the crosstalk can be controlled when the data frequency is high.

Description

technical field [0001] The invention relates to a cable, in particular to a shielded digital symmetrical cable. Background technique [0002] The digital communication network is constantly developing towards multi-function, large capacity, high frequency and high speed, which puts forward higher requirements for the shielding performance of digital communication cables against electromagnetic interference. The shielding performance of the shielding layer of the cable is more effective when the frequency is higher. The more obvious it is, but how to solve the interference at lower frequencies also affects the overall anti-interference ability of the cable. At the same time, the cable is easy to be squeezed during use, which will affect the structural change of the cable. Therefore, it should be ensured that the structure of the cable is still stable when it is subjected to a certain extrusion force, so as not to affect the normal use of the cable. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/04H01B11/06
Inventor 孙其勇
Owner ANHUI JIANGHUAI CABLE GROUP
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