Isolated surrounding-type urban rail transit-used power composite cable

Abstract

The invention discloses an isolated surrounding-type urban rail transit-used power composite cable, which comprises an ethylene propylene rubber carrier layer. The ethylene propylene rubber carrier layer is composed of a center core, four fan-shaped cores and isolated ribs; the center core is internally provided with multiple fiber wire cores; the center core is sequentially coated with an aluminum foil wrapping shielding layer and a silicone rubber protection layer; the fan-shaped core between two isolated ribs is internally provided with a data cable core, and the fan-shaped core opposite to the data wire core is internally provided with power wire cores; the rest two opposite fan-shaped cores are internally provided with control wire cores; video wire cores are arranged at intervals inside the isolated rib, and phosphating steel wires are arranged between the video wire cores; and the ethylene propylene rubber carrier layer is sequentially coated with a high temperature-resisting glass fiber ribbon wrapping layer, a microporous polytetrafluoroethylene inner sheath layer, a shielding layer and an anti-tear silicone rubber outer sheath layer. thus, normal signal transmission of multiple function cable cores in the same cable can be realized, the transmission effects are not influenced, effective integration, improvement and perfection are realized, and through preferring materials and optimizing the structure, the cable size is small, and the weight is light.

Description

Technical field: [0001] The invention relates to a cable for urban rail transit, in particular to an isolated and surrounding electric composite cable for urban rail transit. Background technique: [0002] With the continuous expansion of China's electric power industry, data communication industry, urban rail transit industry, automobile industry and shipbuilding and other industries, the demand for wire and cable will also grow rapidly, and the wire and cable industry still has huge development potential in the future. [0003] The consumption of composite cables in all walks of life is also increasing sharply. However, according to different transmission effects, the existing optical cables and cables are screened in the market. After screening, the required optical cables and cables cannot be effectively integrated. It is directly laid in the system. Due to such screening and installation, the installation space is increased, the weight is increased, and the total shield...

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Problems solved by technology

[0003] The consumption of composite cables in all walks of life is also increasing sharply. However, according to different transmission effects, the existing optical cables and cables are screened in the market. After screening, the required optical cables and cables cannot be effectively integrated. It is directly laid in the system. Due to such screening and installation, the installation space is increased, the weight is increased, and the total shielding and the total sheath cannot be reprocessed; Transmission efficiency and functionality are affected

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