Special-purposed signal transmission cable for data center and manufacture method of cable

Abstract

The invention discloses a special-purposed signal transmission cable for a data center. The cable comprises a cable core, an inner protective layer, a composite shielding layer and an outer protectivelayer, the cable core is formed by intertwisting four pairs of shielding wires, each shielding wire comprises conductor wires, an insulating layer and a sub shielding layer, the sub shielding layer is internally provided with a sheath, the sheath is internally provided with two conductor wires, the insulating layer is formed by a crosslinked polyethylene insulation unit, a small sheath and the outer protective layer are both made of low-smoke halogen free polyolefin, and the small sheath is additionally arranged between the insulating layer and the sub shielding layer. The cable pair is low in the working capacitance, the signal transmission requirement for the special-purposed signal transmission cable is reached, the sub shielding layer is formed by braiding copper wires, the insulatinglayer is made of a polyester band, each of first and second shielding layers is formed by braiding a plastic-aluminum band and a copper wire, the composite shielding layer is formed by braiding the plastic-aluminum band and copper wire to realize composite shielding, static interference of the external in the circuit is reduced greatly, and the shielding performance of the cable is improved.

Description

Technical field [0001] The invention relates to the field of cable equipment, in particular to a special signal transmission cable for data centers and a manufacturing method thereof. Background technique [0002] With the development of society and the application of new technologies such as cloud computing, big data, and the Internet of Things, data transmission cables are used more and more. Data transmission cables are mainly used for signal control or data transmission. At present, in many practical applications, Data cables are replaced by ordinary control cables or computer cables, but for data centers and other occasions that require high cable transmission parameters, data dedicated transmission cables require cables to have higher capacitance, inductance, EMC, etc. It is required that if ordinary control cables or computer cables are used in these occasions, it will not meet the use requirements, which will cause signal attenuation and distortion. Refer to the patent do...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for manufacturing special signal transmission cables for data centers, to solve the problem that in many practical applications at present, data cables are replaced by ordinary control cables or computer cables, but for data centers, etc. For occasions with high requirements, special data transmission cables require cables to have higher requirements in terms of capacitance, inductance, EMC, etc. If ordinary control cables or computer cables are used in these occasions, it cannot meet the requirements, which will cause signal attenuation, Distortion and other problems, and in the cable production process, the twisted copper wire needs to be cut and segmented. In actual processing, workers often cut with scissors for manual cutting. Due to the high strength of the twisted copper wire, cutting is difficult. The problem

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