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Data transmission cable for physically-foamed insulation transponder

A data transmission cable, physical foaming technology, applied in the direction of insulated cables, insulated conductors, cables with twisted strands/quad strands, etc., can solve the problems of high cable manufacturing cost and increased tedious manufacturing process, etc. Achieve the effects of reducing the manufacturing process, reducing the relative dielectric constant, and reducing transmission attenuation

Inactive Publication Date: 2015-11-11
江苏通鼎光电科技有限公司
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  • Abstract
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Problems solved by technology

However, in the prior art, in order to improve the shielding performance of the cable for the aluminum sheath type railway transponder data transmission cable, two shielding sheath structures, the

Method used

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  • Data transmission cable for physically-foamed insulation transponder

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[0022] It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

[0023] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0024] A physical foam insulated transponder data transmission cable, such as figure 1 As shown, it includes a cable core formed by twisting two or four insulated single wires, as well as an insulating lining 3, a base sheath 5, an inner sheath 6, and a double steel tape armor that are sequentially arranged from the inside to the outside of the cable core Packing layer 7, outer sheath 8; a drain copper wire 4 is provided between the insulating liner 3 and the base sheath 5; the insulated single wire consists of the copper conductor 2 and the skin-foam-skin three outside the copper conductor 2 Layer co-extruded physical foamed polyolefin insulation structure 1.

[0025] It shou...

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Abstract

The invention provides a data transmission cable for a physically-foamed insulation transponder. The data transmission cable comprises a cable core, an insulating lining, a base sheath, an inner sheath, a double-steel belt armor layer and an outer sheath, wherein the cable core is stranded by two of four insulated single lines; the insulating lining, the base sheath, the inner sheath, the double-steel belt armor layer and the outer sheath are sequentially arranged outside the cable core from inside to outside; discharge copper leads are arranged between the insulating lining and the base sheath; and each insulated single line comprises a copper conductor and a skin-foam-skin physically-foamed insulation structure outside the copper conductor. The cable has the advantages of good moisture-proof function, excellent insulating property and small transmission attenuation. According to an aluminum sheath cable, a layer of inner sheath for longitudinally wrapping the outside of a corrugated single-side aluminum-plastic tape and a single-side aluminum-plastic tape is removed; by properly increasing the thickness of an aluminum layer of the aluminum sheath, the same shielding performance effect is reached; the manufacturing process is effectively reduced; the production efficiency is improved; and the manufacturing cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of cables, in particular to a physical foam insulation transponder data transmission cable. Background technique [0002] With the increasing speed of trains, only relying on the way of sending blockage information to on-board equipment by track circuits can no longer meet the requirements of safe high-speed train running in terms of information volume. It is necessary to increase transponder equipment to provide a large number of fixed information and variable information. LEU is a kind of data transmission equipment, which is used to receive the data message transmitted by the train control center and send it to the transponder, and the transponder data transmission cable is used for the connection between the transponder and the LEU, and transmits the message data and electric energy of the LEU. [0003] With the rapid development of railway construction, the number of transponders required in railway tr...

Claims

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Application Information

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IPC IPC(8): H01B11/06H01B7/22H01B7/282H01B7/18H01B7/295
Inventor 沈小平徐伟
Owner 江苏通鼎光电科技有限公司
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