Five-core composite cable with control wire core pairs

Abstract

The invention discloses a five-core composite cable with control wire core pairs. The five-core composite cable with the control wire core pairs comprises a cable core, wherein the cable core is formed by three fan-shaped phase wire cores in the center, and a wrapping band layer in a twisting mode, the wrapping band layer wraps the phase wire cores, a wire core layer wraps the cable core, an outer sheath wraps the cable core in a pressing mode, the wire core layer is formed by a plurality of ground wire cores, a plurality of neutral wire cores and at least one pair of control wire core pairs, and the ground wire cores, the neutral wire cores and the control wire core pairs are arranged outside the cable core in an abreast and concentric mode. According to the five-core composite cable with the control wire core pairs, signal interference is low, electric power signals and control signals can be transmitted at the same time, wire arrangement is more reasonable and more compact, the structure is compact, the outer diameter is small, processing is easy, and construction is convenient.

Description

[0001] technical field [0002] The invention belongs to the field of electric wires and cables, in particular to a five-core composite cable with control core pairs. Background technique [0003] With the popularization of computer technology and the rapid development of the information industry, the intelligentization of residential quarters has become the development trend of modern buildings. , Under certain conditions, it is included in the integrated wiring system, and it is connected to form a complete and complete whole to meet the requirements of a high degree of intelligence. [0004] The five-core composite cable with control cores in the prior art usually has the structure of twisting the control core with five extruded circular cores, or twisting five fan-shaped cores with the control core. combine. The five-core power cable includes five fifth-grade cores with the same conductor cross-section, three "three big and two small" cores with large conductor cross-s...

AI Technical Summary

Problems solved by technology

The structure of the five-core composite cable with the control cable core not only has poor stability of the cable core, but also consumes a large amount of materials, which also increases the weight and cost of the cable.

If five stranded fan-shaped core structures are used, although the stability of the cable core is improved, the wire core is processed into a fan-shaped structure, which is more complicated than the round core. The fan-shaped angle and fan-shaped height must be strictly controlled, and uneven thickness and insulation are prone to occur Layer cracking and other phenomena; secondly, no matter what kind of twisted five-core composite cable with control cable core, the twisted structure increases the actual core length, wastes materials, increases weight, and increases cable costs; again , this structure also makes the outer diameter of the cable larger, especially for large-scale cables. The large outer diameter not only increases the difficulty of manufacturing and transportation, but also takes up a lot of laying space

Furthermore, the power core of the composite cable with the usual structure has a large electromagnetic interference on the control core

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